Explore how to prepare your home for a boiler replacement in this BOXT guide, including four key things you should do before the engineer arrives.

<p>Installing a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a> in your home can sometimes be a long and disruptive process, especially if it&rsquo;s being installed in a different location than your old boiler.</p>
<p>But, to minimise installation times and maximise efficiency, there are things you can do to help the Gas Safe registered engineer who'll be carrying out the work.</p>
<p>In this guide, we explore four tips to help you prepare for your <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">boiler replacement</a> and ensure the installation process is as smooth and straightforward as possible. But first, let's explore why preparing your home for its new heating system is a good idea.</p>
<h2>How to prepare for boiler installation</h2>
<p>Before the Gas Safe engineer fits your new boiler, complete the following tasks to ensure the <a href="https://www.boxt.co.uk/boilers/boiler-installation" rel="follow">boiler installation</a> process goes as smoothly as possible.</p>
<h3>1. Clear the area and a pathway to your boiler</h3>
<p>Whether you&rsquo;re having your new boiler installed in the same place as your old one or opting to have it moved to a new location, you need to make sure the area around your boiler is clear. You should also ensure the existing system, radiators, water stop tap, and gas meter are accessible and that the new boiler location is clean, too, if it&rsquo;s being relocated. Additionally, if the new boiler is to be installed in the loft, the floor in the loft would need to be boarded and also has a fixed light and a fixed loft ladder.</p>
<p>Once you've cleaned around where the boiler will be installed, you must ensure a pathway from there to the front or back door. The engineer will likely be nipping in and out to their van to fetch various tools, not to mention carrying the new boiler into your home. Guaranteeing ease of access reduces installation time and makes the process much easier and safer.</p>
<h3>2. Identify any areas of concern</h3>
<p>Before installing the boiler, you should identify additional concerns in your heating system. This could include rusty pipework, problematic radiators or inconsistent pressure levels. Basically, anything you'd like the engineer to look at, make them aware of it before they get to work installing your <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">replacement boiler</a>.</p>
<p>Flagging any issues will mean the engineer can advise or could even fix them while they install your boiler or organise a time to come back and resolve the issue.</p>

Find out more about common boiler problems and how to identify them.

Common boiler problems

<h3>3. Keep little ones out of the way</h3>
<p>As well as clearing space for your boiler to be installed, you need to make sure children and pets are kept out of the way. This is more of a health and safety concern as opposed to something that will increase productivity, but it may help the engineer concentrate on their work.</p>
<p>Pets, in particular, can be a hazard, so it's important you keep them away from the work area and ensure the engineer has enough space to work.</p>
<h3>4. Identify your home&rsquo;s fuse box or consumer unit</h3>
<p>Whether you&rsquo;re getting a system, standard or combi boiler installed, every boiler needs to be connected to your home&rsquo;s electricity supply. Contrary to popular belief, even gas and oil boilers rely on electricity to ignite, so you&rsquo;ll need to locate the boiler's electrical isolation point (fused spur) and potentially your property&rsquo;s fuse box before your engineer arrives.&nbsp;</p>
<p>If possible, make it easy for your engineer to access the boiler&rsquo;s fused spur or fuse box by clearing a safe pathway to the switch or fuse box then show them the specific switch that controls your boiler. Making sure the engineer only flips the necessary fuse will prevent other areas and appliances in your home from ending up without power.</p>

Learn how and why gas boilers need electricity to heat our homes in our expert's guide.

Do gas boilers use electricity?

<h2>What is the new boiler installation process?</h2>
<p>Once you've cleared the area where the boiler will be installed, found the fuse and any areas for concern, and got your pets or kids out of harm's way, the installation can begin. But what happens when the engineer arrives at your home with a new boiler? Here's what happens in seven simple steps:</p>
<p><strong>1. The boiler and/or system electricity supply needs switching off</strong>: Isolating the electrics before the installation ensures safe working, and the electricity supply may require turning off at different times during the installation to install new controls or even a new fused spur.</p>
<p><strong>2. The gas will need isolating and testing for leaks before the installation</strong>: Testing for gas leaks before installation is important to identify any unsafe situations with the supply and, where practical, resolve and/or repair.</p>
<p><strong>3. The system is drained and the old boiler removed</strong>: The existing system will be firstly drained of all water, and the old boiler will then be removed. Removing smaller appliances, like combi boilers, can be relatively straightforward, but larger heating systems, e.g. those with water storage tanks/cylinders, will take longer.</p>
<p><strong>4. The area is checked and prepared</strong>: During this process, the engineer will assess the boiler's flue system to ensure it complies with the manufacturer's instructions and building regulations or what needs to be done to ensure the new flue complies.</p>
<p><strong>5. The heating system is flushed and cleaned</strong>: Following British standards,&nbsp;engineers should&nbsp;<a href="https://www.boxt.co.uk/boilers/guides/power-flush" rel="follow">flush</a> your central heating system each time a new boiler is installed.</p>
<p><strong>6. The pipework is upgraded</strong>: If you want your boiler to be moved or the pipework looks worse for wear, the engineer will upgrade some or all of the pipes, including the gas pipework, where necessary.</p>
<p><strong>7. The new boiler is installed, and accessories are fitted</strong>: Straightforward installations can be completed within a day, but more complicated work can be significantly longer. Once the boiler is installed, the engineer can work on fitting accessories, like <a href="https://www.boxt.co.uk/boilers/guides/magnetic-boiler-filters" rel="follow">system filters</a>, condensate pumps and additional required flue lengths.</p>
<p><strong>8. Checks are carried out</strong>: The boiler will be tested to ensure it works properly and should be commissioned in accordance with the manufacturer's instructions.</p>
<p><strong>9. The boiler is registered</strong>: Once installed, the engineer will register your new boiler with Gas Safe, the relevant local authorities, and the boiler manufacturer to validate the appliance's warranty. At BOXT, we do this for you!</p>
<p>Check out our blog for a more detailed look at <a href="https://www.boxt.co.uk/boilers/guides/what-happens-when-a-new-boiler-is-fitted" rel="follow">what happens when a new boiler is fitted</a>, including whether your water and gas supply will need to be turned off.</p>
<h3>What is the average installation time for a new boiler?</h3>
<p>The time it takes to install a boiler depends on the size and scale of the installation, but it's typically between one and two days. Explore the factors that can prolong the process in our '<a href="https://www.boxt.co.uk/boilers/guides/how-long-does-it-take-to-fit-a-new-boiler" rel="follow">How long does it take to fit a new boiler?</a>' guide.</p>
<h3>Is it better to repair your current boiler or replace it?</h3>
<p>Deciding whether to replace or repair your boiler is a tricky decision; on the one hand, the short-term cost of <a href="https://www.boxt.co.uk/boilers/boiler-repair" rel="follow">repairing your boiler</a> may be cheaper than a new model; on the other hand, a new appliance offers long-term peace of mind.</p>
<p>To help you make an informed decision, we explore the pros and cons of each side in our '<a href="https://www.boxt.co.uk/boilers/guides/boiler-repair" rel="follow">New boiler vs boiler repair</a>' blog.</p>
<h2><strong>Get your next boiler from BOXT</strong></h2>
<p>Still on the search for your next appliance? Take a look at <a href="https://www.boxt.co.uk/boilers/guides/how-to-choose-your-perfect-boiler">how to choose your perfect boiler</a> for tips on making the right purchase.</p>
<p>Ready to get your new boiler? With BOXT, you could have a new appliance installed as early as tomorrow. Use our <a href="https://www.boxt.co.uk/find-a-boiler/">Find a Boiler</a> tool to get started and look forward to a more affordable, more comfortable home.</p>

Get fixed-price quotes for A-rated replacement boilers from BOXT

Learn

How to prepare your home for a boiler replacement

<h2>Who are Navien boilers?</h2>
<p>Navien is the fourth largest boiler manufacturer in the world and has been the market leader for boilers in Asia for decades before it entered the UK market back in 2014.&nbsp;</p>
<p>It has invested heavily in product development, creating the largest single-site heating product manufacturing facility in the world, producing around 2 million units per year.&nbsp;</p>
<p>Navien offers combi, system and standard boilers, available as gas and oil-powered models, with a wide range of power outputs, so you can <a href="https://www.boxt.co.uk/find-a-boiler/">find Navien a boiler</a> to suit any home.</p>
<h2>Are Navien boilers good quality?</h2>
<p><a href="https://www.boxt.co.uk/boilers/navien-boilers" rel="follow">Navien boilers</a> are built with high-quality stainless steel components for optimum durability and performance and pocket-friendly prices. Before leaving the factory, <strong>every boiler undergoes a thorough, two-stage testing procedure,</strong> including a robotised process that completes 55 checks per second. Every unit is then given a full working test by an operative to complete a <strong>further 250 quality checks</strong>.</p>
<p>For further peace of mind, their boilers are backed by <strong>warranties of up to 12 years</strong>, where Navien will repair or replace the boiler if it breaks down during the warranty period* (subject to terms and conditions).</p>
<h2>What are prices like for Navien boilers?</h2>
<p>At BOXT, we offer fixed and fair price quotes for Navien boilers, and with our <a href="https://www.boxt.co.uk/boilers/the-boxt-price-promise">BOXT Price Promise</a>, we&rsquo;ll beat any like-for-like quote - and give you a &pound;50 voucher if we can&rsquo;t!</p>
<p>We offer a full Navien boiler installation <strong>for just &pound;1,650 all-in or &pound;11 a month</strong>. Or, you can get one via our BOXT Life boiler subscription plans, where for just &pound;30 a month, you get a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a> installed, a new wireless thermostat, and all servicing, maintenance and repairs included for the full 10-year plan, with a fix-or-replace guarantee if anything goes wrong.&nbsp;</p>
<p>Get a fixed-price quote in just 90 seconds for a <a href="https://www.boxt.co.uk/boilers/boiler-installation" rel="follow">boiler installation</a>&nbsp;or a <a href="https://www.boxt.co.uk/boilers/subscription">BOXT Life boiler subscription</a> plan.&nbsp;</p>

Get a fixed-price quote for a new boiler installation in just 90 seconds

<p>Now, let&rsquo;s take a closer look at the boilers that Navien offers&hellip;</p>
<h2>Navien Combi Boilers</h2>
<p>Navien offers a range of gas and oil combi boilers, with outputs ranging from 21kW through to a whopping 54kW depending on the model and fuel type.&nbsp;</p>
<p><a href="https://www.boxt.co.uk/boilers/guides/what-size-boiler-do-i-need">Learn about boiler sizes.</a></p>
<h3>Navien Gas Combi Boilers</h3>
<p>Navien has three gas-powered combi boilers options: the NCB 300, NCB 500, and their latest addition - the super powerful &ldquo;combi-crossover&rdquo; NCB 700 (which is an <strong>Energy Saving Awards winner for Domestic Heating Product of the Year</strong>).&nbsp;</p>
<p>These models come with a range of warranty lengths, from 5 all the way up to 12 years, so you can be confident your boiler is covered in the unlikely event that something goes wrong.&nbsp;</p>
<h3>Navien Oil Combi Boilers</h3>
<p>Oil boilers are a great option for homes that aren&rsquo;t connected to the gas grid, such as those in remote rural areas. Navien&rsquo;s oil combi model, the LCB700, comes in a range of power outputs from 21kW up to 36kW as an indoor or outdoor unit, giving plenty of choice to find the perfect option for homes of any size.&nbsp;</p>
<h2>Navien System Boilers</h2>
<p>Just like the combi range, Navien&rsquo;s system boilers are available as either gas or oil-powered models and also come in a wide range of power outputs from 20kW up to 36kW.&nbsp;</p>
<h3>Navien Gas System Boilers</h3>
<p>Ideal for powering larger homes with high water demand, Navien&rsquo;s gas-powered system boiler, the NCB-CE, is available in outputs from 20kW to 33kW and comes with a 7-year manufacturer-backed warranty.&nbsp;</p>
<h3>Navien Oil System Boilers</h3>
<p>With the same name and variations as the oil combi option, Navien&rsquo;s LCB700 oil system boiler comes in 21kW, 28kW and 36kW outputs, with a choice of having it as either an indoor or outdoor unit.&nbsp;</p>
<h2>So, should you get a Navien boiler?</h2>
<p>It may be new to the UK market, but as the fourth largest boiler manufacturer in the world, <a href="https://www.boxt.co.uk/boilers/navien-boilers" rel="follow">Navien</a> is certainly a brand you can trust. With every product going through hundreds of rigorous quality checks, you can feel confident that your new boiler has been built to an exceptional standard, with the added peace of mind that it&rsquo;s covered by a manufacturer-backed warranty of up to 12 years.&nbsp;</p>

Navien Boilers - Review & Prices 2024

With a purchase as big as a boiler or air conditioning system, it’s crucial that choose a reputable and trustworthy company.

<p><span style="font-weight: 400;">When getting household jobs done, you need to be careful with who you trust. Not everyone is who they say they are. Some people promise a long lists of conditions, only to break them when you make the payment. With a purchase as big as a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a>&nbsp;or <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning system</a>, it&rsquo;s crucial that you get things right. If something goes wrong, it can be very dangerous, and be incredibly expensive to put things right.&nbsp;</span></p>
<h2>Can you trust every contractor you meet?</h2>
<p><span style="font-weight: 400;">There are stories all over the web about cowboy contractors, and how they sneakily take your money after doing a less than satisfactory job. You may even know someone who has been burned by a boiler contractor or similar in the past, for example. If you&rsquo;re at the research stage of finding a new boiler or air conditioning system, it&rsquo;s essential that you keep the following points in mind to ensure you choose a reputable and trustworthy company.</span></p>
<h3>How did you find them?</h3>
<p><span style="font-weight: 400;">Or did they find you? A lot of cowboy contractors tend to knock on doors around their area to find work. Perhaps you get a leaflet through the door about the services they offer. While a lot of these people may be genuine, there are many who simply want a chance to make money.</span></p>
<p><span style="font-weight: 400;">You should always research anyone before you give them a call. At BOXT, we&rsquo;re always transparent with our services. Our engineers are <a href="https://www.boxt.co.uk/boilers/guides/gas-safety-certificate" rel="follow">Gas Safe registered</a> and our team are always available to answer your questions and concerns. </span><b>Use our online chat to speak directly to an engineer</b><span style="font-weight: 400;">.</span></p>
<h3>Check their pricing.</h3>
<p><span style="font-weight: 400;">When getting quotes, take them with a pinch of salt. Some companies or contractors like to offer their services for an unrealistically low fee to attract customers. However, some companies are honest in their approach. Here at BOXT, we&rsquo;ve sparked up a lot of debate about whether we&rsquo;re too good to be true because of our unbeatable prices. We offer a fixed, fair price for our boilers and a genuine approach to bringing our customers nothing but the best.&nbsp;</span></p>
<h3>They need payment quickly.</h3>
<p><span style="font-weight: 400;">Granted, you pay for things before you get them in a lot of cases, and that&rsquo;s usually how we work too. However, we also understand that appliances like a boiler are an expensive investment, which is why we give our customers the option to pay in instalments if needed. However, if you experience a contractor or company quickly asking or pestering for payment in an unnatural way, you may want to take a step back and rethink your choices.&nbsp;</span></p>
<h3>Punctuality.</h3>
<p><span style="font-weight: 400;">Let&rsquo;s say you agree to having a <a href="https://www.boxt.co.uk/boilers/boiler-installation" rel="follow">new boiler installed</a> by someone who is offering a cheap service. You organise a date and time for the work to be completed, but your installer turns up half an hour late. Perhaps they disappear for hours at a time to &ldquo;collect a part&rdquo; or &ldquo;pick up a needed tool&rdquo;. There&rsquo;s always a risk of them never returning -&nbsp; leaving a job half done and potentially hazardous.</span></p>
<h3>Extra jobs.&nbsp;</h3>
<p><span style="font-weight: 400;">If a cowboy contractor does actually finish a job, then they may try and get more work out of you by suggesting that there are other &lsquo;serious&rsquo; problems that need addressing there and then - forcing you to open your wallets for them once more. These jobs are more than likely things that don&rsquo;t even need to be done. At BOXT, we don&rsquo;t have salespeople. We do the job you&rsquo;ve asked us to do at the highest possible standard - then leave you to get on with your day.</span></p>

Get a new boiler from a brand you can trust

Find your perfect new A-rated boiler with our award-winning process

<h2>How are BOXT different?</h2>
<p><span style="font-weight: 400;">We&rsquo;re proud to be a trustworthy brand that has been recognised for our excellent customer service.&nbsp;</span></p>
<h3>We&rsquo;re award winners.</h3>
<p><span style="font-weight: 400;">We&rsquo;ve won a number of awards for recognition of our high-quality services and products:</span></p>
<ul>
<li style="font-weight: 400;"><span style="font-weight: 400;">Best User Experience 2018</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Best New Brand&nbsp;</span></li>
<li style="font-weight: 400;"><span style="font-weight: 400;">Best New Product/Service Launch Of The Year 2017</span></li>
</ul>
<p><span style="font-weight: 400;">In fact, that&rsquo;s only a fraction. We&rsquo;ve been recognised for our excellent services to the community and won a handful of awards.&nbsp;</span></p>
<h3>We help you find the right deal.</h3>
<p><span style="font-weight: 400;">Instead of just giving you a single option and forcing you to buy from us, we&rsquo;ll make the process much more personalised to you - with no fuss. So if you&rsquo;re after a boiler or a brand new air conditioning system, we&rsquo;ve created a helpful platform to help you choose your perfect product at a fixed, fair price.&nbsp;</span></p>
<p><span style="font-weight: 400;">Simply answer a few easy questions about your home set up and requirements, and we&rsquo;ll give you a list of all the possible products that would be a great fit in your home. Make your purchase in full or set up a payment plan suited to your needs, choose your delivery date and we can deliver and install it for you as soon as the next working day, subject to availability.</span></p>
<h3>We&rsquo;re partners of some of the biggest names in the business.</h3>
<p><span style="font-weight: 400;">We work with some well known UK and global brands such as Worcester Bosch and Ideal, giving you peace of mind that our products are reliable and of a high quality. Our engineers are fully trained to install each of our appliances safely and securely.</span></p>
<h4>Stay away from cowboy contractors - choose BOXT.</h4>
<p><span style="font-weight: 400;">Whether you&rsquo;re in contact with a boiler maintenance contractor or you&rsquo;re looking around for air conditioning installation cheaply, stop and think before you commit. There are many people out there simply after a job to earn money, with no cares about the job their doing.</span></p>
<p><span style="font-weight: 400;">At BOXT, we work differently. We do everything in our power to make sure our customers have the best possible experience and receive the greatest quality appliances for their homes. When you book your time slot, our engineer will come out and visit you on time, and complete their work in a reasonable time frame. In a lot of cases, we can even remove an old appliance and dispose of it safely for you. BOXT goes that much further...</span></p>
<p></p>
<p><b>For more information about our services and what you can expect to receive from our trusted brand, talk to a member of our team through our online web chat.</b></p>

Telltale signs of cowboy contractors: who should you trust?

Are you Interested in learning more about air source heat pumps? Read our in depth guide to find out everything you need to know about air source heat pumps. 

<p>If you're on a mission to live a more eco-conscious lifestyle, or if you&rsquo;re simply looking for alternative ways to heat your home, you may have heard of heat pumps.&nbsp;</p>
<p>Air source heat pumps are just one of the types of heat pump available in the UK. But what are air source heat pumps, and how do they work?&nbsp;</p>
<p>Whether you're looking to do your bit to help the environment or on the hunt for new methods of heating your home, we'll tell you everything you need to know about air source heat pumps in this guide.</p>
<h2>What are air source heat pumps?</h2>
<p>Air source heat pumps (ASHP) help transfer heat from outside air into your home. The air is compressed and used to generate more heat which can circulate around your central heating systems.</p>
<p>This low-carbon method comes in two forms: air-to-water and air-to-air.</p>
<ul>
<li><strong>Air-to-water</strong> refers to heat being generated to produce hot water for your radiators, showers, underfloor heating and any other appliance that uses water.</li>
<li><strong>Air-to-air</strong>, on the other hand, refers to heat being directly transferred into the home via a fan or air conditioning system.</li>
</ul>
<p>Air source pumps also come in types: monobloc and split. A monobloc is a bit like a combi boiler and is literally a &lsquo;single block&rsquo; system, where the heat pump has all of its components (apart from the hot water cylinder which is installed in the home) located inside a heat pump unit situated outside the home. A split heat pump unit, however, has both an outside unit, which incorporates the heat exchanger and refrigerant, and an internal unit, which sits inside the property, usually in a utility or boiler room.&nbsp;&nbsp;</p>
<h2>How do air source heat pumps work?</h2>
<p>Much like a refrigerator, air source heat pumps use electricity to absorb heat from the air and use it to generate heat for the home, but how does it all actually work?</p>
<p>1. Air blows into the heat pump. Inside the heat pump is a heat exchanger and a refrigerant which helps absorb heat from the air. This heat is warm enough to turn the refrigerant liquid into a gas. This gas is then compressed to increase the temperature.</p>
<p>2. This compressed gas is then transferred over to the cool air/water to make it warm. It will then circulate around your home, heating radiators and providing hot water.</p>
<p>3. Once enough heat has been transferred, the refrigerant will condense back to a cool liquid for the cycle to repeat again.</p>
<h2>The pros and cons of air source heat pumps</h2>
<p>If you're unsure about whether air source heat pumps are a valuable investment, here are a few advantages and disadvantages for having them help heat your home:</p>
<h3>The pros of air source heat pumps</h3>
<p>Air source heat pumps are able to provide homeowners several benefits. These include:</p>
<h4 role="presentation">1. Environmentally-friendly heating</h4>
<p>Since you'll be using outside air to generate heat for your home, air source heat pumps can help reduce your carbon footprint. In comparison to fossil fuels like oil and natural gas (and, in some instances, electrical energy that has been generated through unsustainable means), air is a fully renewable energy source.</p>
<h4 role="presentation">2. Help with reducing energy bills</h4>
<p>It&rsquo;s not only your carbon footprint that air source heat pumps can reduce, though, they can also help to bring your home&rsquo;s energy bills down. As the name suggests, air source heat pumps operate using the outside ambient air temperatures to meet your heating and cooling needs. This means you won&rsquo;t be reliant on more traditional energy sources, many of which are becoming increasingly expensive. Whilst the upfront costs of getting an air source heat pump will be significantly higher than those of a boiler, it&rsquo;s possible that it could save you money in the long run.</p>
<h4 role="presentation">3. Government funding</h4>
<p>In an effort to make homes more sustainable, the UK government has introduced a Boiler Upgrade Scheme. This allows participants to receive &pound;5,000<strong> </strong>towards the upfront costs of an air source heat pump.&nbsp;</p>
<p>Just bear in mind that after applying for a voucher through this scheme, you must redeem it within three months or else it will expire. So, if you receive a voucher through the Boiler Upgrade Scheme at the beginning of May, you will need to have organised for your new air source heat pump to be installed by the beginning of August.</p>
<h4 role="presentation">4. Ability to heat and cool your home</h4>
<p>Air source heat pumps aren&rsquo;t just used for heating your home, though, they can also be used to provide much-needed air conditioning during the summer months, too!</p>
<p>With temperatures reaching record-breaking highs in recent years (a trend that shows no signs of slowing), more and more of us are looking to install air conditioning systems in our homes.</p>
<p>Not all air source heat pumps are able to operate as cooling systems, though, so you&rsquo;ll need to check your make and model carefully in order to be sure that it will be able to provide air conditioning.&nbsp;</p>
<h4 role="presentation">5. No fuel tanks</h4>
<p>Since you're using outside air, there is no need for fuel tanks or storage. If you were using biofuels, for instance, you would need to have large stores of organic fuels sitting outside or close to your home in order to keep your central heating system operating properly.</p>
<h3>The cons of an air source heat pump:</h3>
<p>Despite their environmental benefits, air source heat pumps aren&rsquo;t always a perfect solution to your home&rsquo;s heating requirements. Let&rsquo;s take a look at some of the disadvantages of getting a heat pump installed in your home.</p>
<h4 role="presentation">1. Installation can be expensive</h4>
<p>Air source heat pumps are considerably more expensive to install than traditional gas or oil boilers. On average, installation costs range from &pound;8000 all the way to &pound;18,000 - a great deal more than the &pound;1000 to &pound;2000 it typically costs to install a boiler.</p>
<p>This means that, for many homeowners, the cost of installing a heat pump is simply unaffordable, even with a government grant.</p>
<h4 role="presentation">2. Low heat supply</h4>
<p>Compared to oil and gas boilers, air source heat pumps don&rsquo;t produce as much heat at the same rate. This means that the water running through your home&rsquo;s radiators or underfloor heating won&rsquo;t be as hot as if it were produced by a boiler.</p>
<p>In larger homes especially, the reduced heating capabilities of ASHP systems tend to mean that more or larger radiators are required.</p>
<h4 role="presentation">3. Good insulation needed</h4>
<p>In order to maximise the potential of your air source heat pump, you'll need to ensure your home is well-insulated. If heat can escape easily via windows and doors, you&rsquo;ll end up using more energy than you need to in order to keep your home warm. This, in turn, will see your energy bills increase beyond what might otherwise be the estimated costs.</p>
<p><strong>4. They lose efficiency in temperatures below 0&deg;C</strong></p>
<p>ASHPs can work at lower temperatures but they will lose efficiency as a result. This means that, if the ambient air temperature falls below freezing, an air source heat pump may struggle to provide enough heat for your home.&nbsp;</p>
<p>Of course, this is a bigger problem in the winter months when the UK&rsquo;s weather regularly drops below 0&deg;C and could lead to homeowners relying on ASHPs needing to install additional heating methods to meet their hot water requirements.</p>
<h4 role="presentation">5. They can sometimes be a tad noisy</h4>
<p>This sound from an air source heat pump is produced by the fan moving air to the heat exchanger. It&rsquo;s usually only the same volume as a fridge, however, if the fan is working extra hard, it can be noisier.</p>
<p>This issue, however, is something engineers are looking to improve upon in the coming years.</p>
<h4 role="presentation">6. UK homes aren't designed for them</h4>
<p>UK homes were not built for ASHPs. Since the vast majority of UK homes use a gas boiler, the air source heat pump installation process can be complex to ensure they can be used effectively to heat your home.&nbsp;</p>
<p>You need to consider the amount of plumbing that will need to be replaced as well as having sufficient space to store your water tank.</p>
<h2>Is it worth getting an air source heat pump?</h2>
<p>Now you know the what, why and how of air source heat pumps, let&rsquo;s weigh up whether or not getting one is the right choice for your home.&nbsp;</p>
<p>Being such a big investment, there are a lot of factors you'll need to consider before installing an ASHP, including:</p>
<ul>
<li><strong>Cost:&nbsp;</strong>First and foremost for many of us will be the cost considerations of a new central heating system. Air source heat pumps certainly aren&rsquo;t cheap, so you must do the maths before deciding to purchase one in order to work out whether it&rsquo;s going to be worthwhile financially. In the table below, we&rsquo;ve outlined the average costs of all the elements required for an ASHP heating system.</li>
</ul>
<table border="1" style="border-collapse: collapse; width: 86.5672%; height: 419px; border-width: 1px;"><colgroup><col style="width: 33.3333%;"><col style="width: 33.3333%;"><col style="width: 33.3333%;"></colgroup>
<tbody>
<tr style="height: 19.5938px;">
<td style="text-align: center; height: 19.5938px;"><strong>Item</strong></td>
<td style="text-align: center; height: 19.5938px;"><strong>Cost range</strong></td>
<td style="text-align: center; height: 19.5938px;"><strong>Average cost</strong></td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Supply air source heat pump: Air-to-water (5kw - 17kw)</td>
<td style="height: 19.5938px; text-align: center;">&pound;4,000 - &pound;8,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;6,000</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Install air source heat pump: Air-to-water</td>
<td style="height: 19.5938px; text-align: center;">&pound;5,000 - &pound;10,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;7,500</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Supply and install air-to-air air source heat pump (heating capacity 5kW)</td>
<td style="height: 19.5938px; text-align: center;">&pound;1,600 - &pound;3,100</td>
<td style="height: 19.5938px; text-align: center;">&pound;2,350</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Option - upgrade to larger radiators (assume 10 in property)</td>
<td style="height: 19.5938px; text-align: center;">&pound;1,000 - &pound;3,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;2,000</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Option - underfloor heating throughout</td>
<td style="height: 19.5938px; text-align: center;">&pound;5,000 - &pound;15,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;10,000</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Option - replace all heating system pipework (i.e. microbore to larger diameter)</td>
<td style="height: 19.5938px;"></td>
<td style="height: 19.5938px; text-align: center;">&pound;2,000</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Upgraded insulation - cavity wall</td>
<td style="height: 19.5938px; text-align: center;">&pound;500 - &pound;1,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;750</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">Upgraded insulation in roof (blanket roll)</td>
<td style="height: 19.5938px; text-align: center;">&pound;500 - &pound;1,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;750</td>
</tr>
<tr style="height: 19.5938px;">
<td style="height: 19.5938px; text-align: center;">
<p style="text-align: center;">Upgraded floor insulation</p>
</td>
<td style="height: 19.5938px; text-align: center;">&pound;1,000 - &pound;5,000</td>
<td style="height: 19.5938px; text-align: center;">&pound;3,000</td>
</tr>
</tbody>
</table>
<p>With the Boiler Upgrade Scheme, however, 90,000 homes in the UK can save around &pound;5,960.&nbsp;</p>
<ul>
<li><strong>Insulation:</strong> You need to make sure your home is well-insulated, otherwise your home might not be able to retain the heat that your air source heat pump generates. Poor insulation can lead to higher energy bills if not addressed.</li>
<li><strong>Size:</strong> Will your ASHP be able to provide enough heat and hot water for your home given its size? Smaller and more compact spaces will benefit from air source heat pumps much more than larger homes, with the latter typically needing to supplement the hot water generated by a heat pump with additional electric or gas-powered heaters.</li>
<li><strong>Space: </strong>Air source heat pumps can be quite large pieces of kit, so you&rsquo;ll need to assess whether you actually have enough outside space to fit the unit. As it&rsquo;s usually smaller properties that are best suited to ASHPs, this issue becomes all the more acute since they will likely have smaller garden areas and smaller interior rooms, too.&nbsp;</li>
</ul>
<h2>How can the Boiler Upgrade Scheme help with funding an air source heat pump?</h2>
<p>In an effort to reduce carbon in our homes, the Boiler Upgrade Scheme (BUS) provides grants and funding for 90,000 homes in the UK to install environmentally friendly devices.&nbsp;</p>
<p>Property owners can apply for a &pound;5,000 grant to pay for the installation of an air source heat pump.&nbsp;</p>
<p>If you&rsquo;re looking for ways to save and want to reduce the threat of climate change, the BUS is a great service you should definitely consider using.&nbsp;</p>
<h2>Help keep your house warm with BOXT</h2>
<p>If you&rsquo;re looking for ways to make your home heating system more efficient, an air source heat pump working alongside a new boiler is a great investment.&nbsp;</p>
<p>At BOXT we&rsquo;re always here to look after our customers&rsquo; needs. Check out our <a href="https://www.boxt.co.uk/boilers/boiler-replacement">boiler replacement</a> services or <a href="https://www.boxt.co.uk/boilers/boiler-repair" rel="follow">book a repair</a> and we could be at your home as quickly as the very next day.&nbsp;</p>

Air source heat pumps: Everything you need to know

There’s a lot to consider when installing central heating. In this guide, we’ll show you how much it costs and what type of system might work best for you. 

<p>Central heating is a vital part of any home. If you want to keep yourself and your family warm, especially during the cold winter months, you&rsquo;ll need to invest in some sort of heating system.</p>
<p>In this guide we share with you how much it costs to install a heating system based on numerous factors including: boiler types, fuel, and the size of the central heating system, as well as our tips for choosing the right option for you.</p>
<p><strong>Before we begin...</strong></p>
<p>It&rsquo;s important to note that not all properties are the same and the cost of installing a central heating system depends on several factors:</p>
<ul>
<li>The size of the property</li>
<li>The use of a property (i.e. domestic or commercial)</li>
<li>The age of a property</li>
<li>The accessibility to connect to Natural Gas, or other fuels such as LPG or Oil</li>
<li>Environmental issues</li>
<li>Your budget for an installation and running costs&nbsp;</li>
</ul>
<p>The total cost of a new central heating system also depends on what is needed for the installation such as:</p>
<ul>
<li>A complete system may require a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a>, radiators, and potentially some re-plumbing</li>
<li>A specialised system and installation to accompany a property&rsquo;s specifications</li>
<li>The cost of labour for a complete or partial installation</li>
</ul>
<h2>How much is it to install a boiler?</h2>
<p>The boiler you choose can influence the central heating installation costs. We&rsquo;ve highlighted some of the <a href="https://www.boxt.co.uk/boilers/guides/types-of-boiler" rel="follow">popular types of boilers</a> used to supply properties in the UK.</p>
<h3>Standard boiler</h3>
<p>Price range: &pound;1,800 to &pound;3,200.</p>
<p>A <a href="https://www.boxt.co.uk/boilers/guides/what-is-a-standard-boiler" rel="follow">standard central heating system</a> consists of a boiler unit, separate pump, a hot water cylinder, and typically a feed and expansion tank in the loft. Cold water is moved from the tank, which is then heated by the boiler and sent to either the radiators if heating is required, or to the <a href="https://www.boxt.co.uk/boilers/guides/hot-water-cylinders" rel="follow">hot water cylinder</a> ready for when you need hot water from your taps.</p>
<p>Heating systems with a standard boiler and hot water cylinder will take up significantly more space than other boilers which means they&rsquo;re great for larger properties but can be laboursome to install.</p>
<h4>Why should you install a standard boiler?</h4>
<p>Here are a few reasons why you might decide to install a standard boiler:</p>
<ul>
<li>Can heat large properties</li>
<li>Enough hot water for several taps</li>
<li>Low maintenance</li>
<li>Will still provide hot water if the mains water pressure drops</li>
</ul>
<p>&hellip;and here&rsquo;s why you shouldn&rsquo;t:</p>
<ul>
<li>More expensive than other systems</li>
<li>This system has more components and takes up a lot of space</li>
<li>Not always reliable pressure</li>
<li>You may run out of hot water if demand is too high</li>
</ul>
<p>Several elements might affect the cost of installing a new boiler. We have made it easier to assist you in your new boiler journey with our <a href="https://www.boxt.co.uk/boilers/boiler-installation" rel="follow">boiler installation service</a>, offering a fixed price and flexibility to suit your needs. Get in contact with us if you need any assistance!</p>

Find a brand new, A-rated boiler that's perfect for your home in just 90 seconds

<h3>System boiler</h3>
<p>Price range: &pound;1,600 to &pound;2,900</p>
<p>A <a href="https://www.boxt.co.uk/boilers/guides/what-is-a-system-boiler" rel="follow">system boiler</a> is similar to a standard boiler but doesn&rsquo;t require a feed and expansion tank to provide water to fill the system.These boilers also have a separate cylinder for storing hot water, and are sometimes referred to as closed-vent or sealed system boilers.</p>
<h4>Why should you install a system boiler?</h4>
<p>Here are a few reasons why you might decide to install a system boiler:</p>
<ul>
<li>They don&rsquo;t require a feed and expansion tank which means they take up less space</li>
<li>Can work with solar energy</li>
</ul>
<p>&hellip;and here&rsquo;s why you shouldn&rsquo;t:</p>
<ul>
<li>It may take some time for your water to heat up</li>
<li>The size of your tank will limit the amount of hot water</li>
</ul>
<h3>Combi boiler</h3>
<p><a href="https://www.boxt.co.uk/boilers/combi-boilers" rel="follow">Combi boilers</a> are typically more effective than standard boilers, as they heat water from the mains water supply rather than filling a hot water tank. This means hot water is ready to use on-demand.</p>
<p>This is an excellent choice for households with one to two bathrooms and restricted space. However, this may not necessarily be a cost-effective or suitable solution for larger houses with several bathrooms.</p>
<p>Combi boilers can cost between &pound;1,500 to &pound;2,750.</p>
<h4>Why should you install a combi boiler?</h4>
<p>Here are a few reasons why you might decide to install a combi boiler:</p>
<ul>
<li>Energy efficient</li>
<li>Low energy bills</li>
<li>Requires less space than a system or standard</li>
<li>Easy to install</li>
<li>Get hot water on demand</li>
</ul>
<p>&hellip;and here&rsquo;s why you shouldn&rsquo;t:</p>
<ul>
<li>Mainly suitable for properties with less than 2 bathrooms</li>
<li>May not work well with old homes and pipework</li>
<li>There needs to be strong mains water pressure in your home for it to work properly</li>
</ul>
<h3>Liquified Petroleum Gas (LPG) boilers</h3>
<p>Price range: &pound;2,000 and upwards</p>
<p><a href="https://www.boxt.co.uk/boilers/guides/what-is-an-lpg-boiler" rel="follow">LPG boilers</a> are typically found in homes that are not connected to the national gas grid - such as rural areas and remote villages.</p>
<p>An LPG boiler requires a supply of gas purchased from transportable gas suppliers, who deliver your gas directly to your property.</p>
<p>For those seeking a more environmentally friendly way to supply their home, LPG may not be the best option as LPG is a fossil fuel much like natural gas that emits carbon dioxide and other by-products. However, with the ever-growing need to seek a more environmentally friendly solution, some suppliers are opting to use a greener version of LPG, which derives from biofuel production.</p>
<h4>Why should you install a LPG boiler?</h4>
<p>Here are a few reasons why you might decide to install a LPG boiler:</p>
<ul>
<li>Cheaper than oil boilers</li>
<li>Produces less carbon emissions</li>
<li>Compact size</li>
<li>Lots of choice: <a href="https://www.boxt.co.uk/boilers/worcester-bosch-boilers" rel="follow">Worcester Bosch</a>, <a href="https://www.boxt.co.uk/boilers/vaillant-boilers" rel="follow">Vaillant</a>, <a href="https://www.boxt.co.uk/boilers/ideal-boilers" rel="follow">Ideal</a> and <a href="https://www.boxt.co.uk/boilers/baxi-boilers" rel="follow">Baxi</a> are all popular models</li>
</ul>
<p>&hellip;and here&rsquo;s why you shouldn&rsquo;t:</p>
<ul>
<li>High fuel costs</li>
<li>High maintenance</li>
<li>Requires a storage tank</li>
</ul>
<h2>Can fuel impact installation costs?</h2>
<p>The type of fuel your boiler runs on can determine how much it will cost to install. This is because some fuels are either more dangerous or complex to handle than others. Making a mistake could cause a lot of damage later down the line.</p>
<p>But even the least complex fuel type may not be the most efficient for your home. Here are a few fuel types that could influence the cost of installation:</p>
<h3>Natural Gas</h3>
<p>The majority of British homes use natural gas as their primary fuel. Natural gas is significantly more convenient since it can be carried in liquid and gas form. Since it&rsquo;s such a common fuel type, natural gas can also be provided directly to your home via a gas provider.</p>
<p>All that being said, <a href="https://www.boxt.co.uk/boilers/guides/when-are-gas-boilers-being-phased-out-what-will-replace-them" rel="follow">the government are trying to phase out the use of gas boilers</a> due to their impact on the environment. This could also be a contributing factor as to why installation prices may be higher.&nbsp;</p>
<h3>Electric</h3>
<p>Since electricity doesn&rsquo;t require burning oil or gas, not only is it a lot more sustainable but it also costs less to install. This quiet boiler type is relatively easy to install and maintain but you&rsquo;ll need a lot of electricity to heat up your home.</p>
<p>Purchasing an electric boiler unit, however, will be more expensive considering how complex it is to build. Check out our guide to compare <a href="https://www.boxt.co.uk/boilers/guides/electric-boilers-vs-gas-boilers-the-pros-cons-of-each" rel="follow">electric boilers and gas boilers</a>!</p>
<h3>Solid fuels</h3>
<p>Although this type of fuel may be the least expensive, it causes the most pollution. Examples of solid fuels include anthracite, coal, long lasting ovals, coke, peat, charcoal, firewood and wood pellets.<br>These fuels are being phased out in favour of renewable energy sources, however, this might be your property's only option if you are located in a rural area, far from the nearest National Gas Supply.</p>
<h3>Renewable energy sources</h3>
<p>Despite renewable energy sources being great for the environment, it may cost you a lot more than other fuel types.</p>
<p><a href="https://www.boxt.co.uk/solar" rel="follow">Solar panels</a>, for example, can cost around &pound;4,000 to &pound;5,000 to install, however, once this process is over, your energy bills might lower as time goes on.</p>
<p>As more and more energy suppliers seek more &nbsp;environmentally friendly alternatives, they can offer reduced operating expenses and cheaper energy unit prices.</p>
<h3>Oil</h3>
<p>Heating systems fueled by oil may offer lower operating costs than electricity. Oil is currently comparable to natural gas when it comes to cost of installation.</p>
<p>An oil tank, for example, can cost as much as &pound;1,000 to install alone. Oil boilers can give your home a lot of heat for a little amount of energy, so it&rsquo;s worth considering if you own a larger property.&nbsp;</p>
<h2>Other factors that can impact installation costs</h2>
<h3>Boiler size</h3>
<p>Boiler size can determine how much power is needed for a boiler to run and provide heat for the home.</p>
<p>For example, combi boilers generally won&rsquo;t be able to produce enough hot water for large properties. But if you lived somewhere small, it might not be necessary for you to spend more money on a bigger boiler.&nbsp;</p>
<h3>Radiators</h3>
<p>The cost to install your central heating system also depends on your preferences for <a href="https://www.boxt.co.uk/boilers/guides/radiator-types" rel="follow">radiators</a>.</p>
<p>Factors to consider when budgeting include:</p>
<ul>
<li>The number of radiators required in your property</li>
<li>The aesthetic/style of the radiators</li>
<li>Are you replacing all or some radiators?</li>
<li>The location of radiators</li>
<li>The energy efficiency of your radiators</li>
</ul>
<p>Designer radiators vary in price from &pound;150 to &pound;1000, whereas conventional central heating radiators can vary between &pound;20 and &pound;120.</p>
<p>To adequately heat larger rooms, you may require more than one radiator. Heating engineers will be able to determine the required heat output for each room to appropriately size your radiators.</p>
<h3>Pipework</h3>
<p>The cost of pipework will vary based on the size of your house and if the pipework is being partially or fully replaced.</p>
<p>Generally speaking, the older the home, the more recommended it is to replace old pipework in conjunction with the installation of a new boiler and/or radiators. Replacing your pipework when you install a new system could help to preserve the longevity and efficiency of your boiler and radiators.</p>
<p>However, a chemical flush of the system or alternatively a <a href="https://www.boxt.co.uk/boilers/guides/power-flush" rel="follow">powerflush</a> can be more cost effective than replacing pipework entirely.</p>
<p>The average cost to replace all the pipes can cost upwards of &pound;800. As a reminder, installation costs depend on your home's size, the number of rooms and if the residence has two stories or more.</p>
<h3>Hot water cylinder</h3>
<p>If you're getting a new system or standard boiler, you may require a <a href="https://www.boxt.co.uk/boilers/guides/hot-water-cylinders" rel="follow">new hot water cylinder</a>. Combi boilers heat water immediately, so they don't need a separate water heater or water storage normally.</p>
<p>Most of the time, replacing a cylinder costs less than putting in a whole new system. When a cylinder is changed, you have pre-existing pipes. However, installing a cylinder from scratch would need new plumbing, which may raise installation costs. You can expect to pay between &pound;600 to &pound;800 for installation.</p>
<p>Vented and unvented hot water cylinders are available. Which cylinder is best for your system is dependent on the size and demands of the property and also depends on how good your mains water pressure is.</p>
<ul>
<li><strong>Vented cylinders</strong> need cold water from a tank in the loft. This tops up the cylinder as water is used</li>
<li><strong>Unvented cylinders</strong> are generally &ldquo;sealed&rdquo; pressurised and deliver hot water better but are usually more expensive&nbsp;</li>
</ul>
<h3>Thermostat</h3>
<p>Once your boiler, radiators and other pipework are installed, your final step will be installing heating controls.</p>
<p>A <a href="https://www.boxt.co.uk/smart-home/guides/smart-thermostat-v-traditional-thermostat" rel="follow">smart thermostat</a> allows you to control the temperature of your home remotely. Modern thermostats can use internet connection to control the system. You could be anywhere in the world and control your heating via your smartphone with just a tap of a button.</p>
<p>Some smart thermostats can even allow you to regulate the temperature in separate rooms on different floors. As you may assume, the more advanced the thermostat, the more it will cost to purchase and install but there is a wide range of thermostats that can suit your needs!</p>
<p>A smart thermostat can cost between &pound;120 to &pound;220 and the installation cost could be another &pound;30 to &pound;80 on top of that.</p>

How much does it cost to install central heating?

Getting a new boiler fitted can be a daunting task, especially if it's your first rodeo! Read BOXT’s expert guide to learn what to expect when it’s time to get a new boiler installed.

<p>So, you&rsquo;ve done your research and <a href="https://www.boxt.co.uk/boilers">selected the boiler</a> that&rsquo;s right for your home&hellip;but what happens next? Before it can start pumping hot water through your radiators and out of your taps, you need to get it installed, flushed, tested and registered.&nbsp;</p>
<p>Confused? Don&rsquo;t worry, our team of boiler experts is on hand to help.</p>
<p>We&rsquo;ll guide you through the process step-by-step so you know the who, what, how and why of <a href="https://www.boxt.co.uk/boilers/boiler-installation" rel="follow">boiler installation</a> to make sure there are no nasty surprises when the time comes to upgrade your central heating system.</p>
<h2>BOXT&rsquo;s step-by-step guide to getting a new boiler fitted</h2>
<p>Let&rsquo;s take a look at everything you can expect to happen when the engineer comes to install your new heating system.</p>
<h4>Step 1 - Removal of the old boiler</h4>
<p>Before they make a start on fitting your <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a>, the engineer will first have to get rid of the existing one. If your current boiler is a relatively simple, compact model, this shouldn&rsquo;t take too long. Just be aware that it may take more time if your boiler is particularly large, in a hard-to-reach location or has complex pipework attached to it.</p>
<h4>Step 2 - Preliminary checks and preparation</h4>
<p>The engineer will want to do a thorough check of the space into which they&rsquo;ll be installing the new boiler and inspect the existing <a href="https://www.boxt.co.uk/boilers/guides/what-is-a-boiler-flue">flue system</a> to make sure everything is as it should be.&nbsp;</p>
<p>Once they are satisfied that everything is a-ok, they will walk you through the installation process and give you a chance to ask any questions. The final step before getting started is covering your floors with protective sheets to prevent damage from any spills of dirty water or dust.</p>
<h4>Step 3 - Flushing and cleaning</h4>
<p>Removals, checks and preps done; now comes the time for flushing and cleaning. According to the guidelines set out by British Standards, engineers should <a href="https://www.boxt.co.uk/boilers/guides/power-flush">flush or clean</a> your central heating system before installing a new boiler.&nbsp;</p>
<p>There are three options here; chemical flushing, power flushing and MagnaCleanse.&nbsp;</p>
<p>Chemical flushes rely on mains pressure or the system pump to pull cleaning solutions through the system, whilst power flushes will force them through at high pressure.&nbsp;</p>
<p>Power flushes are used on systems that have bigger build-ups of debris or dirt, which, if left, could end up damaging your new boiler.</p>
<p>MagnaCleanse uses magnets and cleaning solution as a filtration system to remove debris and sludge.</p>

What is a system flush?

<p>Whatever system flush method your engineer chooses, they will be looking to make sure that the water running through your heating system is as clean as possible to avoid metal deposits or other contaminants from compromising the performance of your boiler.</p>
<h4>Step 4 - Upgrading the pipework</h4>
<p>If the pipework connected to your existing boiler has seen better days, or if you are moving your boiler to a different location within your home, the engineer will need to carry out upgrades to some or all of the pipes.&nbsp;</p>
<p>This is one of the most labour-intensive and time-consuming elements of the installation process, so be sure to check that your engineer has factored it into any time or cost estimates provided.</p>
<h4>Step 5 - Fitting the new boiler</h4>
<p>With the important preparation done, the engineer can move on to fitting your new boiler. The length of time required to do this will depend on several factors, including the type and size of the boiler you&rsquo;ve chosen, as well as whether or not it is being <a href="https://www.boxt.co.uk/boilers/guides/moving-a-boiler">moved to a different location</a> (from the kitchen into a utility room, for example).</p>
<p>If you&rsquo;re doing a like-for-like switch, this stage can be done relatively quickly, with most straightforward installations being completed within a day. If more upgrades are needed, the process can be significantly longer. Be sure to speak with your engineer, as they will be able to provide you with an estimate of how long they think it will take.</p>
<h4>Step 6 - Fitting any accessories</h4>
<p>After the main boiler unit has been installed, the engineer can begin connecting up any accessories that may be needed. The main one to note here is the <a href="https://www.boxt.co.uk/boilers/guides/magnetic-boiler-filters">system filter</a>. This is a little magnetic device that sits on the pipe used to return water to your boiler that collects any debris, sludge and metallic particles before they have a chance to enter your heating system.</p>
<h4>Step 7 - Checking everything works</h4>
<p>Once everything is in place and connected together, the engineer will fire up your new boiler to make sure it&rsquo;s working properly. This is&nbsp; referred to as &lsquo;commissioning&rsquo;. This procedure must be carried out by the Gas Safe registered engineer who is installing your boiler and should follow the steps detailed by the <a href="https://www.hhic.org.uk/">Heating and Hot Water Industry Council</a> (HHIC).</p>
<p>A thorough commissioning process will help to ensure that your new boiler is able to work as efficiently and effectively as possible, keeping your home warm and your energy bills down.</p>
<h4>Step 8 - Registering the boiler</h4>
<p>This step can be completed by the installer or the homeowner (that&rsquo;s you). Once the boiler has been fitted, it needs to be registered with the manufacturer using the unique product identification number. This makes sure that any warranty or guarantee is valid, so should you experience any issues, you&rsquo;ll be covered against the cost of repairs.&nbsp;</p>
<p>Boilers are typically registered via a dedicated portal on the manufacturer&rsquo;s website, and the installer will be able to help you with this if you&rsquo;re in any doubt.</p>
<p>Choosing a <a href="https://www.boxt.co.uk/boilers/boiler-installation">boiler installation with BOXT</a>? Don&rsquo;t worry! We&rsquo;ll take care of registering your boiler&rsquo;s warranty for you.</p>
<h3>What happens when a combi boiler is fitted?</h3>
<p>A <a href="https://www.boxt.co.uk/boilers/combi-boilers">combi boiler</a>, otherwise known as a combination boiler, is the most common type of boiler in the UK. They are often the simplest and cheapest of the three main boiler types to install, but this doesn&rsquo;t mean they compromise on quality or efficiency.&nbsp;</p>
<p>Combi boilers typically have the most straightforward installations, with the smaller, more compact models being the quickest to fit. If you have a smaller house or flat with fewer radiators, a combi boiler is probably the best option for you.&nbsp;</p>
<h3>What happens when a standard boiler is fitted?</h3>
<p><a href="https://www.boxt.co.uk/boilers/guides/what-is-a-standard-boiler">Standard boilers</a> (sometimes referred to as regular or heat-only boilers) are generally found in larger properties or homes that haven&rsquo;t been modernised. With this boiler system, cold water tanks are usually found in the loft and a hot water storage cylinder will also be in the property.&nbsp;</p>
<p>With more parts in the mix, these can take a long time to install due to the complexity of the system and the fact that the engineer will need to work in multiple locations within your home, so you will need to expect a certain level of property disruption. Also be aware if you are converting to a combination boiler, or a more powerful standard boiler, a gas pipe upgrade may well be required. This could also cause property disruption, or involve finding an alternate pipe route, potentially being run externally on your property.</p>
<h3>What happens when a system boiler is fitted?</h3>
<p><a href="https://www.boxt.co.uk/boilers/guides/what-is-a-system-boiler">System boilers</a> are a good in-between option, providing a balance of efficiency and performance for average and larger-sized homes. System boiler installations will be easier than a standard boiler installation since there is no need for a cold water storage tank, but slightly more involved than a combi boiler installation as a separate hot water tank will still be required.</p>
<h2>Is the water switched off when a new boiler is fitted?</h2>
<p>Don&rsquo;t worry; your home&rsquo;s water supply won&rsquo;t be switched off for the entire duration of the installation but during the process there will be times when the engineer will need to isolate the water supply to carry out required works. During this time you won&rsquo;t be able to access cold water from your taps and flush your toilets. The engineer will communicate this to you during the job. There will be disruption caused to your hot water supply, as your boiler will be out of action during the removal and reinstallation processes.&nbsp;</p>
<p>Now, this shouldn&rsquo;t be too much of an inconvenience if you&rsquo;re doing a simple one-out-one-in job. But, if your boiler is being moved to another location in your home (thus requiring new pipework to be installed), the whole process will take considerably longer.&nbsp;</p>
<p>If this is the case, you could be without hot water for up to 3 days whilst everything is put in place, so it&rsquo;s definitely recommended that you wait until the spring or summer months when your reliance on central heating won&rsquo;t be as great.&nbsp;</p>
<p>Many people who opt to change the location of their boiler also get their hands on some portable electric heaters to see them through the period when their home&rsquo;s main heating system is out of action.</p>
<h2>Is the gas supply switched off when a new gas boiler is installed?</h2>
<p>Similar to the situation with your home&rsquo;s water supply, the mains gas supply won&rsquo;t be turned&nbsp; off for the entire duration of the installation but during the process there will be times when the engineer will need to isolate the gas supply to carry out required works whilst the new boilers gas supply is being fitted. This means you will still be able to use any gas appliances like ovens, stoves, and fireplaces, whenever the gas is not isolated. Again, the engineer will communicate this with you during the installation process.</p>
<h2>The cost of boiler installation</h2>
<p>There&rsquo;s no beating around the bush; we all want to know how much getting a new boiler will set us back financially.&nbsp;</p>
<p>How much a boiler installation will cost depends on how big or small the job is and how long it takes. If the job is quick and easy, such as replacing an older combi boiler with a new one, it won't be overly expensive.</p>
<p>Generally speaking, the average cost of a new combi boiler with installation is between &pound;1,500 and &pound;3,500. While this might seem a lot, a newer, more energy-efficient boiler could <a href="https://www.boxt.co.uk/boilers/boiler-energy-saving">help you save hundreds of pounds on your energy bills</a> each year, so it really is worth considering.</p>
<h2>What about after the boiler has been installed&hellip;what happens then?</h2>
<p>Now your new boiler is installed safely and soundly in its new home, the responsibility of making sure it&rsquo;s maintained properly falls on you.&nbsp;</p>
<p>All boilers, be they combi, standard or system, will be supplied with terms and conditions stating that an annual <a href="https://www.boxt.co.uk/boilers/boiler-servicing" rel="follow">boiler service</a> is required in order for any warranty periods to be upheld by the manufacturer. This means that if you fail to get your boiler serviced by a Gas Safe registered engineer at least once a year, you won&rsquo;t be covered in the event of it breaking, malfunctioning or needing repairs.</p>
<p>Getting your boiler checked annually will make sure that any performance or safety issues are flagged before they have a chance to escalate into far larger (and more expensive) problems. So, whilst you might not feel that organising a boiler service should be at the top of your priority list, it can definitely save you money and hassle in the long run.</p>
<p>BOXT&rsquo;s boiler experts agree that the best advice to follow is to organise your boiler&rsquo;s service during the summer months when you&rsquo;re less reliant on your home&rsquo;s central heating system to avoid finding yourself in hot (or, should we say, ice-cold) water when it comes to the wintertime.</p>
<h2>Get a new boiler, the BOXT way</h2>
<p>Whether you&rsquo;re moving into your first home or your fifth, the thought of getting a new boiler fitted tends to be something that fills even the bravest among us with horror. Nightmares of sky-high prices, long installations and engineers with questionable understandings of tidiness certainly spring to mind&hellip;which is why <a href="https://www.boxt.co.uk/who-we-are">BOXT believes it&rsquo;s time to shake things up</a>.</p>
<p>We&rsquo;re turning the home heating industry on its head, making the process of getting a new boiler more affordable and less stressful than ever before. Like the sound of this? Explore how <a href="https://www.boxt.co.uk/boilers/subscription">BOXT&rsquo;s boiler subscription service</a> can save you money, time and effort and discover how our friendly team of trusted engineers can help make the installation process a dream from start to finish.</p>

What happens when a new boiler is fitted?

Gas Safe registered engineer installing a boiler

Only Gas Safe registered engineers can install a boiler. Read our guide on why installing your own boiler is something you must not do!

<p>Investing in a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a> can be costly, so it makes sense that people will look at ways to reduce boiler installation costs. One way some people might consider doing this is by installing it themselves.</p>
<p>However, this is dangerous and, in some cases, illegal. Installing a new boiler by yourself can also end up being more costly than having a professional install for you. This is why you shouldn&rsquo;t install a boiler by yourself and instead look for professional help.&nbsp;</p>
<p>In this article, we cover everything you need to know about installing a new boiler and why doing this by yourself is never a good idea.&nbsp;</p>
<h2><strong>Who can install a boiler?</strong></h2>
<p>Although it can be easy to think installing a boiler by yourself is simple, the reality is very different. It requires a lot of hard and technical work that, unless you have extensive experience dealing with, you shouldn&rsquo;t install without a professional.&nbsp;&nbsp;</p>
<p>The type of boiler you choose may also determine the type of professional help you receive. An electric boiler, for instance, may require you to hire an electrician qualified in plumbing, whereas an engineer with the right qualifications should install a gas boiler. Although plumbers work with heating systems and other appliances related to water (like radiators, sinks or pipework), they cannot work on boilers or gas pipes. This is because plumbers are not qualified to handle gas safely, so you should only rely on plumbers for water-related issues unless they are also Gas Safe Registered.&nbsp;</p>
<p>It is illegal to install a boiler by yourself.&nbsp; A boiler should be fitted by a Gas Safe registered engineer, and under Building Regulations, you can only register a boiler through Gas Safe. You must be qualified if you want to avoid severe consequences. If you&rsquo;re careless, a simple leak can cause a lot of problems that can negatively impact your health or the safety of your home. Or worse, if installed incorrectly, you could cause an explosion and face criminal charges.&nbsp;&nbsp;</p>
<p>According to the Approved Code of Practice HSE Safety Regulations, in order for a person to be viewed as &lsquo;competent&rsquo; at <a href="https://www.boxt.co.uk/boilers/boiler-installation" rel="follow">installing a boiler</a> a person must do the following:</p>
<ul>
<li>Complete a recognised training course followed by a completed assessment</li>
<li>Is either currently registered or has past experience being registered where they can prove competence</li>
</ul>
<p>You must have received training in relation to&hellip;&nbsp;</p>
<ul>
<li>Water and electricity</li>
<li>The potential exposure to asbestos</li>
<li>All possible dangers</li>
<li>How to take the necessary precautions</li>
</ul>
<p>A qualified professional must meet the standards set by the Gas Safe Register, which shows they have the experience and the competence to install a boiler. They must also comply with building regulations before installing; otherwise, they could be fined.&nbsp;</p>
<p>We recommend seeking a professional when it comes to installing a boiler, whether that&rsquo;s an electrician, an engineer, or the <a href="https://www.boxt.co.uk/">boiler company</a> may have installers you can rely on. Ultimately, the key takeaway is that installing a boiler yourself is breaking the law if you are not qualified to do so.&nbsp;</p>
<h2><strong>What about installing oil and electric boilers?</strong></h2>
<p>If you&rsquo;re not hoping to install a gas boiler, you might wonder whether all this applies to you. We always recommend having a registered professional handle your boiler installation, regardless of fuel type it uses.</p>
<p>Electric boilers are perhaps the most straightforward to install unless you are looking to <a href="https://www.boxt.co.uk/boilers/boiler-replacement">replace a gas or oil boiler</a>. In this case, you need a professional to come and install it for you. You&rsquo;ll also need the help of a qualified electrician to ensure the wiring is done safely to avoid any unnecessary hazards. When installing, make sure you separate the mains from the electrics so you don&rsquo;t electrocute yourself. It&rsquo;s always worth getting expert advice and help to prevent accidents.&nbsp;</p>
<p>Installers are advised to become approved by the Oil Firing Technical Association (OFTEC) before beginning the installation process. An OFTEC engineer will still need to visit the boiler once installed to make sure everything is running smoothly, so it makes sense to hire a professional to install and inspect your boiler for safety and warranty purposes.&nbsp;</p>
<h2><strong>Can you carry out any boiler maintenance yourself?</strong></h2>
<p>We&rsquo;ve discussed in length what you can&rsquo;t do when installing a boiler, but is there anything you can DIY?&nbsp;</p>
<p>Once the boiler has been safely installed, there are a number of boiler maintenance tasks you can carry out to ensure your unit is working and running efficiently.</p>
<p>Our complete guide to gas boiler maintenance highlights a checklist of what to look out for when caring for your new boiler, including:</p>
<ul>
<li>Checking the boiler pressure</li>
<li>Bleeding your radiators</li>
<li>Checking for leaks</li>
</ul>
<p>As long as you are not interfering with the gas and boiler supply, anything related to it should be okay to handle.&nbsp;</p>
<p>What else to avoid:</p>
<ul>
<li>The heating system - leaves this to the plumber or electrician</li>
<li>Gas - you must have a Gas Safe engineer&nbsp;&nbsp;</li>
</ul>
<h2><strong>Why choose BOXT for boiler installations?</strong></h2>
<p>Finding a reputable company to provide and install a high-quality boiler at an affordable price can be challenging. Thankfully, here at BOXT, we can make sure you get the service, products, and deals that suit you.</p>
<p>Here are the main reasons to choose BOXT if you are interested in <a href="https://www.boxt.co.uk/boilers/boiler-installation">installing a new boiler</a> in your home.</p>
<h3><strong>Fixed-price</strong></h3>
<p>Anyone considering installing their own gas boiler will want to avoid paying more than they have to. That is why we are such a great option.</p>
<p>Simply answer a few quick questions about your property and, if you like, discuss options with our team of experts on the phone or via Live Chat, and we will be able to tailor a deal to suit your needs.</p>
<p>We will then be able to provide you with a free, no-obligation, fixed-price quote for the boiler and installation.</p>
<p>Fixed price quotes are a great way to ensure you don't end up going over budget and that there are no hidden costs. The quote received will be the full price for everything you need to have a new boiler installed in your home.</p>
<p>Another benefit of choosing BOXT for boiler installations is our <a href="https://www.boxt.co.uk/boilers/the-boxt-price-promise">price promise</a>. We regularly check the market to ensure our prices remain among the best. We are so confident that if you find a like-for-like deal cheaper elsewhere, we will either beat that price by &pound;50 or give you a &pound;50 Amazon voucher if we can't beat it.</p>
<p><a href="https://www.boxt.co.uk/boilers" rel="follow">Get a fixed price for boiler installation now</a>.&nbsp;</p>
<h3><strong>Experienced installers</strong></h3>
<p>As well as offering excellent prices that won't leave you worried about mounting bills, you will also benefit from high-quality workmanship from fully qualified engineers.</p>
<p>We work with a network of over 10,000 local engineers across the whole of the UK. All of our installers are fully DBS checked, and you are guaranteed to get a Gas Safe registered engineer with a minimum of two years of experience.</p>
<p>You will be able to find out the specific engineer who will be coming to install your boiler and check their online profile too. Our installer's online profile gives you more information about them.</p>
<h3><strong>Quick, convenient service</strong></h3>
<p>Nobody wants to wait for a new boiler installation, especially if it is to replace one that has broken down. Thankfully, with BOXT, you can enjoy next-day installation in some cases, and we will even remove all mess and packaging to ensure your home is in the same condition after we leave.</p>
<p>All the boilers we offer come with a guarantee of up to ten years, and you can select a convenient installation date to suit your needs.</p>
<p>We want our customers to enjoy a hassle-free service and get all the information they need about our service and the products we supply. Our handy<a href="https://www.boxt.co.uk/boilers/guides"> boiler guides</a> also offer advice and information about boilers that are useful to know.<strong></strong></p>
<p>We offer service plans from just &pound;8.99 a month that guarantee your annual <a href="https://www.boxt.co.uk/boilers/boiler-servicing" rel="follow">boiler service</a> by a Gas Safe registered engineer.</p>
<p><a href="https://www.boxt.co.uk/home-cover">Check out our boiler home cover plans</a>.</p>
<h2><strong>Final thoughts</strong></h2>
<p>DIY can be fun, but it&rsquo;s always best to seek professional advice when it comes to boiler installations. Whether you&rsquo;re going electric, gas or oil, having a registered expert is the safest option for you and your family.</p>
<p>Don&rsquo;t take unnecessary risks; get your boiler installed today with the help of BOXT. We strongly advise working with Gas Safe engineers like ours who can offer a higher quality of work and give you that all-important peace of mind.</p>

Can I install my own boiler?

Although oil boilers are less common than gas boilers, 5% of the UK population still rely on oil to heat their homes. If you're looking to replace your oil boiler with a new heating system, there are plenty of options that could make your home more efficient and help to reduce your energy bills.

<p>Although oil <a href="https://www.boxt.co.uk/boilers">boilers</a> are less common than gas boilers, 5% of the UK population still rely on oil to heat their homes. If you're looking to replace your oil boiler with a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a> or heating system, there are plenty of options that could make your home more efficient and help to reduce your energy bills.</p>
<h2>What is an oil boiler?</h2>
<p>Like gas boilers, oil boilers require fuel. But instead of natural gas, these boilers rely on oil for central heating and domestic hot water.</p>
<p>Oil boilers are a popular choice for homes not connected to the gas network. Instead, an oil tank is stored on-site, and the boiler takes fuel from the supply tank. Whenever you need more oil, you'll have to arrange for a supplier to come and top up your tank.</p>
<p>Oil boiler systems require a large space to store the tank, usually in your garden or surrounding area. You'll also have to keep your eye on the fuel levels to make sure you don't run out.</p>
<h2>Different types of oil boilers</h2>
<h3>1. Oil regular boilers</h3>
<p>These are the oldest type of boiler, often found in large, traditional homes. Regular boilers fueled by oil take water from a cold water cistern, usually in the loft space. The central heating system then heats the water and stores it in a separate hot water cylinder.</p>
<p>Regular boilers are a great choice for larger homes, but they take up a lot of space with an oil tank, cistern and cylinder. Once all your hot water has been used up, you'll have to wait for this to refill before you can use the hot water again.</p>
<h3>2. Oil system boilers</h3>
<p>These boilers take their water supply directly from the mains, eliminating the need for a cold water F &amp; E tank. The water is then heated and stored in a hot water cylinder.</p>
<h3>3. Oil combi boilers</h3>
<p>These boilers provide central heating and hot water on demand. So other than an oil tank, no additional cylinders are required. They work similarly to your standard <a href="https://www.boxt.co.uk/boilers/combi-boilers">combi boiler</a>, other than burning oil rather than natural gas.&nbsp;</p>
<p>Oil combi boilers might be the perfect solution for small homes, but they would struggle to meet larger properties' heating and hot water demands.</p>
<h2>What are the alternatives to oil heating systems?</h2>
<p>If you're in the market for an oil <a href="https://www.boxt.co.uk/boilers/boiler-replacement">boiler replacement</a>, the alternatives are listed below. Each comes with various pros and cons, so take the time to find the ideal heating system for your home.</p>
<h3 role="presentation">1. Gas boilers</h3>
<p>A gas boiler works similarly to an oil boiler by burning gas and pumping hot water to the radiators in your home when you turn the central heating on.</p>
<p>Gas is generally more affordable than oil, which is one reason why 78% of the UK population use a gas central heating system as their heating and hot water source.</p>
<p>If you&rsquo;re looking for a replacement for your old oil boiler, it's worth considering connecting your property to the gas grid. This is an extensive network of pipes running all across the UK, working to deliver natural gas to homes and businesses.</p>
<p>If your property isn't connected to the gas grid, this is likely because you live in a remote location. The further you live from your nearest gas supply, the more expensive it will be to connect to the gas grid.</p>
<p>Gas boilers are much cheaper to fuel and run than oil and electric boilers, so once connected to the gas grid, you&rsquo;ll notice a decrease in your energy bills.&nbsp;</p>
<p>Gas is pumped directly into your home from the gas grid, so there's no need for an oil tank in your back garden, as with oil boilers. As gas is a popular fuel source for UK homes, manufacturers continuously invest in more efficient and reliable technology.</p>
<p>If you're on the hunt for the perfect oil boiler replacement, check out BOXT's range of boilers.</p>
<h3 role="presentation">2. Electric Boilers</h3>
<p>Rather than burning fuel, <a href="https://www.boxt.co.uk/boilers/guides/electric-boilers-vs-gas-boilers-the-pros-cons-of-each" rel="follow">electric boilers</a> convert electricity into heat to warm up water and heat your home.</p>
<p>Electric boiler installation is typically cheaper than gas or oil as they don't require laying a gas line or installing a condensation or flue pipe in your home.</p>
<p>Electric boilers are an excellent choice for those seeking a greener fuel type, as no fossil fuels are burnt to heat your home. And if you're not keen on connecting to the gas network, an electric boiler could be the best choice as they don't require any gas.</p>
<p>However, these boilers are typically more expensive to run than other fuel types and aren't well suited to larger homes as they often struggle to meet high hot water and heating demands.</p>
<p>Discover <a href="https://www.boxt.co.uk/boilers/guides/electric-boilers-vs-gas-boilers-the-pros-cons-of-each">the pros and cons of electric vs. gas boilers</a> in our previous guide, and find out which is better for your home.</p>
<h3 role="presentation">3. Heat pumps</h3>
<p>If your house is too big to be heated by an electric boiler, but you still want to be environmentally friendly, an air or ground source heat pump might be the solution.</p>
<p>Heat pumps effectively pump heat from one space to another. This is done by extracting heat from the air or ground and using it to provide heating and hot water to your home.</p>
<p>Heat pumps are incredibly efficient, using only small amounts of electricity and taking their heat from either the ground or air.&nbsp;</p>
<p>However, heat pumps struggle to provide the same consistent heat output that other heating systems maintain, so they tend to work best when paired with systems like underfloor heating.</p>
<h3 role="presentation">4. Hybrid Systems</h3>
<p>Hybrid systems combine two or more technologies to provide heating and hot water. These typically consist of a heat pump or solar thermal panels integrated with an oil or gas boiler as a way of adapting to changing seasons and increased demands.&nbsp;</p>
<p>The heat pump element of the system is better suited to the warmer months when the air or ground is warm. In colder months, when the air and ground are naturally much colder, the boiler element of the system proves more suitable.</p>
<p>These systems require less energy and gas simultaneously, meaning lower energy bills and increased efficiency.</p>
<h3 role="presentation">5. LPG boilers</h3>
<p>If you&rsquo;re considering a gas boiler but live too far away to connect to the grid, an LPG system might be the ideal choice. LPG stands for Liquified Petroleum Gas, produced from a combination of natural gas, oil extraction and oil refining.</p>
<p>They work similarly to a gas or oil boiler, as LPG boilers burn fuel to produce the energy required to provide hot water and heating for your home.</p>
<p>Like oil boilers, LPG boilers require fuel to be delivered and stored in a fuel storage tank on your property.</p>
<p>LPG boilers are generally cheaper to purchase than oil boilers, but the fuel is more costly. Compared to other oil boiler alternatives, LPG boilers still require a large fuel tank stored in the garden which can be off-putting for many.</p>
<p>To find out more, check out our ultimate <a href="https://www.boxt.co.uk/boilers/guides/what-is-an-lpg-boiler">guide to LPG boilers</a>.</p>
<h3 role="presentation">6. Biomass boiler</h3>
<p>Biomass is a biological material which comes from living organisms like plants and is considered a sustainable option for heating your home. This heating system operates similarly to an oil boiler but instead burns biomass to supply heating and hot water.</p>
<p>This biomass can come in wood pellets, chips or logs and, depending on which form you use, has different maintenance requirements.</p>
<p>Biomass boilers require much more space than gas or oil boilers, as the system is larger. You'll also need to store the biomass in a wood store or something similar. This storage must be entirely airtight so the biomass fuel can remain dry - otherwise, it won't burn efficiently.</p>
<p>One of the most significant downsides of biomass boilers is the initial investment. Purchasing a biomass boiler costs considerably more than other heating systems, ranging between &pound;4,000 and &pound;8,000.</p>

Get a free, fixed price, no obligation quote for a new boiler from BOXT today.

What should I replace my oil boiler with?

Discover whether you need a water tank with a combi boiler with the experts at BOXT.

<p dir="ltr"><span>If you&rsquo;re looking to make the switch from your old boiler to a new <a href="https://www.boxt.co.uk/boilers/combi-boilers" rel="follow">combi boiler</a>, you&rsquo;ll likely want to know a bit more about combi boilers before you make the upgrade.&nbsp;</span></p>
<p dir="ltr"><span>How do they work? Do you need a water tank with a combi boiler? How do combi boilers store water?</span></p>
<h2 dir="ltr"><span>What is a combi boiler?</span></h2>
<p dir="ltr"><span>A <a href="https://www.boxt.co.uk/boilers/combi-boilers" rel="follow">combi boiler</a> or &lsquo;combination boiler&rsquo; is a popular solution to central heating and hot water supplies in UK homes.&nbsp;</span></p>
<p dir="ltr"><span>Historically, a central heating and hot water system would have been powered by two or more heating sources. However, the combi boiler runs the central heating and hot water supply from one source - the boiler - thanks to its compact size, increased fuel efficiency and ability to supply hot water and heating on demand, as opposed to waiting for water to heat up.</span></p>
<p dir="ltr"><span>In our intuitive guide, we&rsquo;ve gone into more detail about &lsquo;</span><a href="https://www.boxt.co.uk/boilers/guides/what-is-a-combi-boiler"><span>What is a combi boiler?</span></a><span>&rsquo;.</span></p>
<h2 dir="ltr"><span>What is a water cylinder?</span></h2>
<p dir="ltr"><span>A water cylinder is just that - a cylinder that holds water.&nbsp;</span></p>
<p dir="ltr"><span>Commonly found in homes where a standard or system boiler is in use, the water cylinder comes in a variety of sizes, depending on household demand. Some water cylinders are kept in cupboards, like an airing cupboard, typically on the highest floor in the building or the loft if the system is gravity fed, or near the main bathroom or water connection.</span></p>
<p dir="ltr"><span>The water cylinder&rsquo;s primary function is to store water heated by the boiler until the water is required.</span></p>
<p dir="ltr"><span>However, regardless of size, a water cylinder can only provide a system with hot water as long as it has been pre-heated and stored. So, your supply is finite until the system&rsquo;s boiler can heat more water and refill the cylinder.&nbsp;</span></p>
<p dir="ltr"><span>Not an ideal situation when you want to enjoy a nice warm bath, following a family member using up all of the hot water before you!</span><span><br></span><span><br></span><span>We&rsquo;ve discussed system boilers in a bit more depth in this article - find out &lsquo;</span><a href="https://www.boxt.co.uk/boilers/guides/what-is-a-system-boiler"><span>What is a System Boiler?</span></a><span>&rsquo; with help from this handy guide.&nbsp;</span></p>
<h2 dir="ltr"><span>How does a combi boiler store water?</span></h2>
<p dir="ltr"><span>The combi boiler is designed to be compact but efficient at supplying a home with its heating and hot water demand. Therefore, </span><span>combi boilers don&rsquo;t require water tanks.</span></p>
<p dir="ltr"><span>A combi boiler draws water directly from the water mains into the boiler, where it is heated as and when required at that point in time. This means that you receive an uninterrupted and infinite supply of hot water.</span></p>
<h3 dir="ltr"><span>Can you store the water your combi boiler heats?</span></h3>
<p dir="ltr"><span>You can&rsquo;t store the heated water with just a normal combi boiler. However, you could invest in a storage combi boiler.</span><b></b></p>
<p dir="ltr"><span>Storage combi boilers merge the technologies of system and combi boilers. You won&rsquo;t require a large water tank in the loft space or airing cupboard either, as storage combi boilers have a small storage tank built into them.&nbsp;</span><b></b></p>
<p dir="ltr"><span>These boilers were once quite large. However, as technology has improved, you can now purchase wall-hung storage combi boilers.</span></p>

<h2 dir="ltr"><span>Upgrade to a combi boiler with BOXT</span></h2>
<p dir="ltr"><span>Combi boilers won&rsquo;t require you to give up some of your airing cupboard or loft space for a water tank (or multiple!). Instead, you&rsquo;ll have a wall-hung combi boiler that provides you with heating and hot water on demand.</span></p>
<p>If you&rsquo;re looking to invest in a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a>, a combi boiler might be the perfect choice for you. Simply head to our website for a fixed price on your new combi boiler, or take a look at <a href="https://www.boxt.co.uk/boilers/subscription">BOXT Life</a> - our new all-in-one boiler subscription. From just &pound;35 per month, you&rsquo;ll receive a brand new boiler and installation, smart thermostat, unlimited repairs, replacement and servicing and much more with the added benefit of no deposit needed or interest charged!</p>

Do you need a water tank with a combi boiler?

From combi boilers to biomass systems, discover the different types of boilers, how much they cost and their energy efficiency levels in this guide. 

<p>Choosing the correct boiler and central heating system for your home can be a headache. Although your boiler is integral to your hot water and heating supply, it's unlikely you will think about it until something goes wrong, and you either need to book a repair or start the search for a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a>.</p>
<p>We all know a good boiler is reliable, efficient and reasonably priced. But how will you know which one to choose if you don't know your combi boilers from your system boilers? And which is going to be most appropriate for your home?</p>
<p>We put together this guide to help you answer those questions and more. Here, we explore the different types of boilers, how they work, how efficient they are, and more. So you can make an informed decision when it comes to upgrading your current boiler.</p>
<h2>What is a combi boiler?</h2>
<p>Short for combination boiler, a <a href="https://www.boxt.co.uk/boilers/combi-boilers" rel="follow">combi boiler</a> delivers heating and hot water to your home from a single unit. This means you won't need a separate hot water cylinder or cold water storage tank to be installed in your home. Combi boilers are installed in the majority of British homes due to their versatility and being fitted with an integral secondary heat exchanger that can supply hot water on demand.</p>
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<h3>How big are combi boilers?</h3>
<p>One of the main benefits of a combi boiler is its size. A combination boiler's compact size and simplicity make it ideal for most homes. This means the boiler can usually be fitted almost anywhere in your home, including airing and kitchen cupboards.</p>
<h3>How energy efficient are combi boilers?</h3>
<p>Rated 'A' for efficiency, combi boilers only heat water when you need it. This differs from standard or system boilers, which heat and store hot water in separate tanks. Electric combi boilers are much more efficient because they waste less energy. A more <a href="https://www.boxt.co.uk/boilers/guides/boiler-efficiency" rel="follow">efficient boiler</a> means less energy is wasted, meaning you'll save money monthly when the heating bills come in.</p>
<h3>How expensive are combi boilers?</h3>
<p>A new combi boiler costs between &pound;1,500 and &pound;2,500. Generally, a combi boiler will be cheaper to install, maintain, repair, and carry out a <a href="https://www.boxt.co.uk/boilers/boiler-servicing" rel="follow">boiler service</a> on than most standard or system boilers. However, if you convert your system from a standard or system boiler, the initial conversion cost could be higher.&nbsp;</p>
<p>This is because combi boilers only have one unit generating heat, so there are no additional cylinders or storage tanks to worry about. Upgrading to an <a href="https://www.boxt.co.uk/boilers/combi-boilers" rel="follow">A-rated combi boiler</a> from another boiler system can also save you money in the long run, as they're more efficient and cheaper to maintain.</p>
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<h2>What is a standard (conventional) boiler?</h2>
<p>Sometimes known as a conventional, regular or heat-only boiler, standard boiler systems use cold water tanks to store water that fills the boiler. A separate hot water tank also stores and supplies water to your taps and radiators.</p>
<p>Typically, the cold water tank is located in the roof space or loft, with the hot water storage cylinder positioned below in an airing cupboard.</p>
<p>One downside is that you can only use as much hot water as can be stored in the storage tank, so you could run out if you&rsquo;re using a lot of hot water at any time.</p>
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<h3>How big is a standard boiler?</h3>
<p>Standard boilers are generally found in larger or older homes due to the space required to keep the separate tanks.</p>
<p>Due to how they work, modern standard boilers are of a similar size to combi and system boilers, but the cold and hot water cylinders take up more room.</p>
<p>With this being said, standard boilers can meet higher demands for water as they store large amounts of hot water in the cylinder - this means multiple bathrooms and hot water taps can be serviced at any one time.</p>
<h3>How energy efficient are standard boilers?</h3>
<p>Standard boilers, particularly older models, are less efficient than combi boilers. However, their usefulness in larger homes means standard boilers are still produced, and some models are over 90% efficient.</p>
<h3>How much does a standard boiler cost?</h3>
<p>A regular boiler will typically cost around &pound;500 for the unit alone. However, due to the additional tanks, cylinders and controls, standard boilers are more expensive to install and maintain, especially compared to combi boilers, where everything is contained in one unit.</p>
<h2>What is a system boiler?&nbsp;</h2>
<p>Like standard boilers, system boilers are usually found in larger homes with greater hot water and heating demands. Unlike standard boilers, however, system boilers are filled directly from the cold water mains and are connected to a sealed system. This means there's no need for feed or expansion tanks in the loft.</p>
<p>System boilers are usually connected to unvented hot water cylinders and provide better hot water performance when simultaneously supplying multiple taps and showers.</p>
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<h3>How big is a system boiler?</h3>
<p>The actual boiler unit is similar to standard and combi boilers, although you will still need room for a <a href="https://www.boxt.co.uk/boilers/guides/hot-water-cylinders" rel="follow">hot water storage cylinder</a>. However, there is no need for the additional feed and expansion water tanks in the loft as they are fed from the cold water main and fitted to a sealed system.</p>
<h3>How energy efficient are system boilers?</h3>
<p>New system boilers are just as efficient as combis in the 90% range; however, you wouldn't be heating the water instantaneously, so you would be heating a store of hot water, which could cost slightly more money.&nbsp;</p>
<p>New system boilers are as efficient as combi boilers, with most being rated above 90% efficient. You cannot heat water on demand despite the high energy efficiency levels. Instead, you'll need to use a hot water cylinder, which will cost slightly more to keep warm.</p>
<h3>How much does a system boiler cost?</h3>
<p>A system boiler can cost anywhere between &pound;600 and &pound;2,500 depending on the make, model and type of appliance. These boilers are more expensive to have installed than combi boilers, sometimes costing up to &pound;2,000. Having said this, system boilers are much more powerful and potentially more cost-effective than standard boilers, as there are no feed and expansion tanks to be fitted.</p>
<h2>What is a biomass boiler?</h2>
<p>Biomass boilers work in a similar way to other boilers, but they don't burn fossil fuels. Instead, they are a renewable energy source that burns wood pellets, plants and other natural waste to generate heat.</p>
<h3>How big is a biomass boiler?</h3>
<p>A biomass boiler includes fuel storage, a tank, an expansion vessel and a chimney and can occupy around 10 square metres of space. Typically kept in garages or outdoor sheds due to their size, biomass boilers are also usually kept separate from the home.</p>
<h3>How energy efficient are biomass boilers?</h3>
<p>The efficiency of a biomass boiler will depend on the fuel source you use. For example, it may be as high as 94% if you're using wood pellets but as low as 80% if you use wet chips.</p>
<p>Biomass boilers also require more upkeep than combustion boilers, as they must be kept clean and supplied with fuel.</p>
<h3>How much does a biomass boiler cost?</h3>
<p>Again, the specifics of biomass boilers will vary based on the type of boiler system you purchase. Biomass appliances that need to be fed manually can cost between &pound;4,000 and &pound;10,000, while automatic pellet-feeding systems can cost as much as &pound;20,000.<br>Installation typically takes 1-2 days and could cost upwards of &pound;400, but this will change according to who you hire.</p>
<p>Under the <a href="https://www.gov.uk/apply-boiler-upgrade-scheme" rel="nofollow noopener" target="_blank">Government's Boiler Upgrade Scheme</a>, you may be eligible for a grant of up to &pound;5,000 to help pay for a new biomass boiler.</p>
<h2>What is a back boiler?&nbsp;</h2>
<p>Back boiler systems are fitted behind electric or gas fires and provide central heating and hot water. Popular in the 1960s, 70s, and 80s, it has been <a href="https://www.boxt.co.uk/boilers/guides/are-back-boilers-now-illegal" rel="follow">illegal to install new back boilers</a> that are non-condensing in UK properties since 2005, when regulations stated that only highly efficient condensing boilers could be installed in homes.</p>
<p>If your home still uses a back boiler, we strongly recommend exploring upgrades to a newer, more energy-efficient, environmentally-friendly boiler.</p>
<h3>How big is a back boiler?</h3>
<p>The boiler system is a large unit located within the chimney breast, behind the fireplace. In addition to the boiler unit, back boilers need a feed and expansion tank in the loft and a hot water cylinder to be fitted into the property.</p>
<h3>How energy efficient are back boilers?</h3>
<p>Compared to other boilers, back boilers are not efficient. In fact, the installation of non-condensing back boilers was banned in 2005 due to the high carbon emissions and Government safety regulations. Back boilers are only around 80% efficient, so for every pound you spend on heating your home, you lose 20p up your chimney.</p>
<h3>How much is maintenance on a back boiler?</h3>
<p>As well as being expensive to run, back boilers are costly to maintain and service. Servicing costs would be higher due to the level of work required on them, while certain parts may be hard to come by or even obsolete.</p>
<p>Rather than maintaining your current back boiler, it is recommended that back boilers are replaced with economical condensing boilers.</p>
<h2>Which boiler model is suitable for my home?&nbsp;</h2>
<p>A <a href="https://www.boxt.co.uk/boilers" rel="follow">new boiler</a> might not be your most exciting purchase this year, but it could be the most important one. So you must make the right choice.</p>
<p>We understand you'll want to do your due diligence before your new boiler is installed. To help you, we've compiled a series of guides relating to the installation process.</p>
<p>From <a href="https://www.boxt.co.uk/boilers/guides/when-to-replace-boiler" rel="follow">the signs you need to replace your boiler</a> to <a href="https://www.boxt.co.uk/boilers/guides/moving-a-boiler" rel="follow">everything you need to know about moving a boiler</a> and <a href="https://www.boxt.co.uk/boilers/guides/how-much-does-it-cost-to-install-central-heating" rel="follow">how much it costs to install a central heating system</a>, the BOXT guides have it all.</p>
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