Here, we compare heat pumps and air conditioning to see which is best for you. Reviewing several key categories, like durability, installation and efficiency.

Get a fixed price quote for air conditioning 

<p>If you're in the market for a new cooling or heating system, it's good to know what's available to you. And it's even more helpful to know which could be most suitable for you and your home.</p>
<p>We compiled this guide to help make that decision easier and clarify a few things. Here, we explore how heat pumps work, what <a href="https://www.boxt.co.uk/air-conditioning" rel="follow">air conditioning</a> units do, and which system is the most energy-efficient and cost-effective so you can make an informed choice when picking a new heat pump unit or cooling system.</p>
<h2>Heat pumps vs air conditioners: How do they work?</h2>
<h3>Heat pumps</h3>
<p>Heat pumps work by transferring heat from outside into your home during winter, and vice versa during summer. They use electricity to move heat from a cool space to a warm area, making your home toasty in winter and cool in summer. There are two main types of heat pumps, these are:</p>
<h4>1. Air source heat pumps</h4>
<p>An air source heat pump takes the heat from the outside air, even on cold days, and uses it to warm up your home. It absorbs the heat and then compresses it to increase its temperature. This warm air is circulated through your home to provide heating and hot water.&nbsp;</p>
<p>The best part? It uses much less electricity than traditional heating systems, making it more eco-friendly and cost-effective in the long run.</p>
<h4>2. Ground source heat pumps</h4>
<p>A ground source heat pump harnesses the natural heat stored in the ground. To achieve this, pipes are buried in your garden or even under your house and contain water and antifreeze. This liquid absorbs heat from the ground and carries it into your home. The heat is used to warm up your radiators, underfloor heating, or hot water systems.&nbsp;</p>
<p>Ground source heat pumps are incredibly efficient because the ground maintains a relatively stable temperature throughout the year, making them a reliable and eco-friendly heating solution.</p>
<p>Both heat pumps can help you save money on energy bills, reduce your carbon footprint, and make your home feel cosier.</p>
<h3>Air conditioners</h3>
<p>Air conditioners, on the other hand, use refrigerant to absorb heat from inside your home and release it outside, pumping cold air into your home and leaving your living space cool and comfortable.</p>
<p>Another benefit to having an air conditioning unit installed is that many systems can be reversed and could help you keep your home warm in the colder months.</p>
<p>Read our blog to explore <a href="https://www.boxt.co.uk/air-conditioning/guides/split-system-air-conditioner" rel="follow">how split system air conditioners work</a> (air conditioning units with internal and external components).</p>
<h2>Heat pumps vs air conditioners: what do they do?</h2>
<h3>Heat pumps</h3>
<p>Besides regulating your home's temperature, heat pumps can also dehumidify indoor air, enhancing your overall comfort.</p>
<h3>Air conditioners</h3>
<p>Air conditioners primarily focus on cooling indoor air, making them an excellent choice for long, hot summer days. Additionally, these systems can help to dehumidify and purify the air in our homes, too.</p>
<h2>Heat pumps vs. air conditioners: price</h2>
<h3>Heat pumps</h3>
<p>While the initial cost of heat pump installation is higher than installing an air conditioner, heat pumps are more energy-efficient, potentially saving you money in the long run.</p>
<h3>Air conditioners</h3>
<p>Air conditioners often have a lower initial cost but might be less energy-efficient, leading to higher electricity bills over time.</p>
<p>Remember: To get an accurate idea of how much a heat pump or air conditioner will cost, consult a qualified HVAC engineer. They will assess your home, review your cooling and heating requirements, and provide you with a detailed quote.</p>
<p>Alternatively, for an air conditioning quote in just a couple of clicks, use our <a href="https://www.boxt.co.uk/find-ac" rel="follow">Find an Air Conditioner tool</a>. Simply tell us a few things about your home, and we&rsquo;ll recommend the best systems - it&rsquo;s that simple.</p>

Explore air conditioning solutions with BOXT

<h2>Heat pumps vs. air conditioners: installation</h2>
<h3>Heat pumps</h3>
<p>Installing a heat pump can be complicated, particularly if you want to install a ground source heat pump; this is due to the outdoor unit and the need&nbsp;for proper insulation. Due to these complexities, a trained HVAC technician must undertake the work.</p>
<h3>Air conditioners</h3>
<p>An air conditioning system is easier to install than a heat pump, but you must still have a professional set it up to ensure optimal performance and safety.</p>
<h2>Heat pumps vs. air conditioners: efficiency&nbsp;</h2>
<h3>Heat pumps</h3>
<p>Heat pumps are very efficient because they move heat rather than generate it, making them a great choice if you're trying to reduce your carbon footprint.</p>
<h3>Air conditioners</h3>
<p>While air conditioners are effective at cooling, they might be less energy-efficient than heat pumps in the long term.</p>
<h2>Heat pumps vs. air conditioners: emissions</h2>
<h3>Heat pumps</h3>
<p>Heat pumps produce lower carbon emissions because they utilise existing heat rather than burning fuel to create it.</p>
<h3>Air conditioners</h3>
<p>Air conditioning units, especially older models, can contribute to greenhouse gas emissions due to their increased energy consumption.</p>
<p>Another thing to consider here is the type of electricity tariff your home is on. If you use renewably sourced energy or generate electricity, e.g. from <a href="https://www.boxt.co.uk/solar" rel="follow">solar panels</a>, your environmental impact will be reduced.&nbsp;</p>
<h2>Heat pumps vs. air conditioners: durability</h2>
<h3>Heat pumps</h3>
<p>Heat pumps are designed for year-round use and, with proper maintenance, can last for around 20-25 years.</p>
<h3>Air conditioners</h3>
<p>Air conditioners require regular servicing to ensure their effectiveness and longevity. If you keep your air conditioning unit well-maintained, it will&nbsp;typically last around 15-20 years.</p>
<h2>Heat pumps vs air conditioners: money saved on bills</h2>
<h3>Heat pumps</h3>
<p>Depending on the type of home you live in, a heat pump may be an energy-efficient alternative to central heating, especially in moderate climates. However, heat pumps are only suitable for homes with a good amount of outdoor space due to the size of the appliance.&nbsp;</p>
<h3>Air conditioners</h3>
<p>By contrast, if you live in a smaller home or apartment and have an air conditioning system installed that can reverse its function and heat your home, it will likely be more cost-effective than using central heating and a heat pump.&nbsp;</p>
<p>With this being said, using an air conditioner in the summer will help you to stay cool, but it will also impact your home&rsquo;s electricity usage and increase your energy bills, especially if you use it for long periods.&nbsp;</p>
<p>Check out our blog to discover <a href="https://www.boxt.co.uk/air-conditioning/guides/how-much-does-air-conditioning-cost-to-run" rel="follow">how much air conditioning costs to run</a>.&nbsp;</p>
<h2>Heat pumps vs air conditioners: pros and cons</h2>
<h3>Pros of heat pumps</h3>
<ol>
<li><strong>Efficiency: </strong>Heat pumps are incredibly energy-efficient. They move heat from one place to another instead of generating it, making them a greener and cost-effective choice for heating and cooling your home. Heat pumps also produce lower carbon emissions than traditional heating systems, making them environmentally friendly and contributing to a greener planet. Efficiency can of course vary by the type of home you have.&nbsp;</li>
<li><strong>Year-round comfort: </strong>Heat pumps can heat your home in winter, and some are even capable of cooling your home in the summer, providing consistent comfort throughout the changing seasons.</li>
<li><strong>Reduced energy bills: </strong>Because they are more energy efficient than central heating systems, heat pumps can significantly reduce your energy bills, saving you money in the long term.</li>
<li><strong>Longevity: </strong>With proper maintenance, heat pumps can last for many years, providing reliable heating and cooling for your home.</li>
</ol>
<h3>Cons of heat pumps</h3>
<ol>
<li><strong>Initial costs: </strong>The upfront cost of installing a heat pump can be higher than other heating systems. However, the long-term energy savings can outweigh the initial investment.</li>
<li><strong>Climate dependence: </strong>Air source heat pumps might be less efficient in extremely cold conditions. However, technological advancements are making them more effective even in chilly weather.</li>
<li><strong>Complex installation process: </strong>Proper installation by a qualified professional is crucial for efficiently, and safely, operating heat pumps.<br>Space requirement: Heat pumps, especially air source ones, require outdoor space for installation. This might be a limitation for homes with limited outdoor areas.</li>
</ol>
<h3>Pros of air conditioning units</h3>
<ol>
<li><strong>Cool comfort: </strong>Air conditioning units provide instant relief during hot and humid weather, ensuring you can relax comfortably indoors, even on&nbsp;scorching summer days.</li>
<li><strong>Improved air quality: </strong>Modern air conditioners come with filters that can trap dust, pollen, and other allergens, improving the quality of the air you breathe indoors.</li>
<li><strong>Better sleep: </strong>Keeping your bedroom cool with an air conditioner can promote better sleep, as a cool and relaxed environment is conducive to restful nights.</li>
<li><strong>Versatility:</strong> Some air conditioning units also have heating functions, providing warmth during colder months, making them a year-round solution for temperature control.</li>
</ol>
<h3>Cons of air conditioning units</h3>
<ol>
<li><strong>Cost:</strong> Purchasing and installing air conditioning units can be expensive, especially for larger or multi-room systems. This initial cost might be a barrier for some individuals.</li>
<li><strong>Energy consumption:</strong> Air conditioners can increase your electricity bills, especially if used excessively. Choosing energy-efficient models and using them judiciously can help mitigate this issue. Air conditioning units use refrigerants that can contribute to greenhouse gas emissions if not handled properly.</li>
<li><strong>Maintenance: </strong>Air conditioning units require regular maintenance, including filter cleaning or replacement, to ensure they function optimally. Neglecting maintenance can lead to reduced efficiency and higher energy bills.</li>
<li><strong>Noise pollution:</strong> Some air conditioning units can be noisy, which might be a concern, especially for bedroom installations. However, many modern units are designed to be quieter.</li>
</ol>
<h2>More BOXT-source heat pump wisdom</h2>
<p>If you're considering buying a heat pump system, ensure you make the correct decision, both for your wallet and your home, by reading our dedicated heat pump guides. Here, you'll find information on how heat pumps are installed, and how much it costs to run a heat pump in the UK.</p>
<p>Ready for a new HVAC system? BOXT can install both heat pumps and air conditioning systems&hellip;</p>

Enjoy perfect temperatures with BOXT's air conditioning packages

Learn

A heat pump vs. air conditioning: which is better for your home?

Explore heat pump efficiency and learn expert tips on how to increase the efficiency of your air source or ground source heat pump.

<p>With economic uncertainty and environmental crises making news headlines on a daily basis, it&rsquo;s no surprise that everyone (us included) is looking for ways to make life a little easier. Whether it&rsquo;s by cutting back on the weekly shop or reducing energy consumption at home, we&rsquo;re all looking at changing how we live our day-to-day lives.</p>
<p>One of the newer ways to improve the efficiency of the energy in your home is by installing a heat pump. But what are heat pumps, and how efficient are they as a home heating solution?&nbsp;</p>
<p>To help you decide whether making the switch from a <a href="https://www.boxt.co.uk/boilers" rel="follow">traditional boiler</a> over to a heat pump is right for you, this blog explores the ins and outs of heat pump efficiency. Plus, our home heating experts will share their tips on how to get the most out of your heat pump and keep it working at peak performance.</p>
<h2>How is heat pump efficiency calculated?</h2>
<p>Heat pump efficiency is typically calculated using a parameter known as the Coefficient of Performance (COP). The COP is a ratio that represents the amount of heat energy produced or moved by a heat pump for the given input of energy (usually electricity). It measures how efficiently the heat pump can transfer heat from a lower-temperature source to a higher-temperature sink.</p>
<table border="1" style="border-collapse: collapse; width: 100.054%;"><colgroup><col style="width: 99.893%;"></colgroup>
<tbody>
<tr>
<td>
<p>The formula to calculate the Coefficient of Performance (COP) is</p>
<p><strong>COP = Output Heat Energy / Input Electrical Energy</strong></p>
<p>Where:</p>
<ul>
<li><strong>Output Heat Energy</strong> is the amount of heat energy delivered to the space being heated or the hot water system.</li>
<li><strong>Input Electrical Energy</strong> is the amount of electrical energy consumed by the heat pump.</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>In practical terms, a higher COP indicates better efficiency, meaning more heat energy is being produced or moved for a given amount of electrical energy input.</p>
<p>It's worth noting that factors such as the temperature difference between the heat source and the heat sink, the type of heat pump (whether it&rsquo;s an <a href="https://www.boxt.co.uk/boilers/guides/air-source-vs-ground-source-heat-pumps">air source or ground source heat pump</a>), and the operating conditions can all affect COP. Also, real-world efficiency can vary depending on the environment and usage patterns of the system.</p>
<h2>How efficient are heat pumps, really?</h2>
<p>Heat pumps are growing in popularity, and a major reason for this is how efficiently they&rsquo;re able to heat our homes. Unlike more traditional heating systems that use electricity or fossil fuels to generate heat energy, heat pumps capture and transfer existing thermal energy from the ground or air.&nbsp;</p>
<p>This means that they can provide us with more energy than they use, making them an efficient piece of kit.</p>
<p>Now, it&rsquo;s not quite as clear-cut as this in practice. There&rsquo;s a whole range of external factors (which we&rsquo;ll expand on below) that can influence the efficiency of a heat pump, meaning it&rsquo;s nigh on impossible to determine precisely how efficient yours will be once it&rsquo;s up and running.</p>
<h2>What factors determine a heat pump's efficiency?</h2>
<p>Here are some key factors that add to the making of an efficient heat pump:</p>
<h3>1. COP (Coefficient of Performance):&nbsp;</h3>
<p>As we mentioned before, the efficiency of a heat pump is often measured by its Coefficient of Performance. This metric represents the ratio of heat output to electrical input. A higher COP indicates greater efficiency.</p>
<h3>2. Air source vs ground source:</h3>
<p>There are two main types of heat pumps - air source and ground source. Ground source heat pumps tend to be more efficient, as they draw heat from a relatively stable and mild temperature source, such as the ground or a water source. Air source heat pumps are also efficient but may lose efficiency in extremely cold or hot climates.</p>
<table border="1" style="border-collapse: collapse; width: 100.054%;"><colgroup><col style="width: 99.893%;"></colgroup>
<tbody>
<tr>
<td>
<h3>How do heat pumps work?</h3>
<p>Heat pumps work in similar ways, the only real difference being the source of the heat energy. Air source heat pumps take heat energy from the surrounding air and transfer it into your home via a coolant. Ground source heat pumps take heat energy from (yep, you&rsquo;ve guessed it) the ground before transferring it to your home using a coolant.</p>
</td>
</tr>
</tbody>
</table>
<h3>3. Sizing and installation:</h3>
<p>This is where employing a top engineer is crucial, as proper sizing and installation are crucial for maximising the efficiency of a heat pump. An undersized or poorly installed unit won't operate efficiently and may experience frequent short cycling, which can reduce its lifespan over time.</p>
<table border="1" style="border-collapse: collapse; width: 100.054%;"><colgroup><col style="width: 99.893%;"></colgroup>
<tbody>
<tr>
<td>
<h3>What does it mean when a heat pump short cycles?</h3>
<p>Short cycling is when a heat pump is turning on and off far more frequently than it should, effectively only running for periods of around 5 minutes at a time. If it&rsquo;s short cycling, your pump will turn off automatically before completing its full heating and cooling cycle, so it won&rsquo;t be working efficiently.</p>
</td>
</tr>
</tbody>
</table>
<h3>4. Maintenance:&nbsp;</h3>
<p>Like any household appliance, regular maintenance is essential to keep a heat pump running as it should. This includes cleaning the filters, checking refrigerant levels, and ensuring all components are in good working order every 6-12 months. Think of your heat pump like your boiler; you need to get it serviced annually to make sure it stays in tip-top condition.</p>
<h3>5. Climate:&nbsp;</h3>
<p>The efficiency of an air source heat pump system can be affected by the local climate. In freezing temperatures, a heat pump will need to work harder to extract heat from the outdoor air, which can reduce its efficiency. Read our guide on <a href="https://www.boxt.co.uk/boilers/guides/how-does-a-heat-pump-work-in-winter" rel="follow">whether heat pumps work in the winter</a> for more information about how temperature may impact your heat pump&rsquo;s efficiency.</p>
<h3>6. Hybrid heat pump systems:&nbsp;</h3>
<p>In some regions, dual fuel systems that combine a heat pump with a backup heating source are used to improve efficiency. The heat pump operates in milder conditions, and the backup heating source kicks in when it's cold to pick up any slack and make sure you never end up with a cold shower!</p>
<p>It's essential to consider your specific heating/cooling needs and the climate of the area you live in when evaluating the efficiency of a heat pump for your home. Consulting with a professional HVAC installer can help you select the right system and ensure it is installed correctly for optimal efficiency.</p>
<p><img src="https://cdn.buttercms.com/NBslZ1GQkmzGCdIGr4Ql" alt="BOXT Engineer2.jpg" style="display: block; margin-left: auto; margin-right: auto;"></p>
<h2>Top tips for maximising the efficiency of your heat pump</h2>
<h3>1. Insulate the building</h3>
<p>Most system installations will require alterations to the structure of a building itself to increase efficiency. The first step in this process is insulation. This is a common way to make a home more energy efficient: it helps a building hold heat for longer within its walls.<br>&nbsp;<br>Alongside this, energy can be efficiently delivered at a lower flow temperature, or the temperature at which water passes through a radiator or underfloor heating, which reduces the amount of heat required. This increases the effectiveness of the heat pump.</p>
<p>Any heating system, whether it uses non-renewable or renewable energy, is likely to work more effectively in an insulated home.</p>
<h3>2. Consider installing underfloor heating</h3>
<p>Heating distribution systems like radiators and underfloor heating may alter heat pump efficiency.</p>
<p>Low flow temperatures are more effective over larger surface areas, meaning underfloor heating systems are well-suited to heat pumps.</p>
<blockquote>
<p><strong>BOXT top tip: </strong>If possible, consult with home heating experts when carrying out any remodelling work on your property that involves upgrading or changing the heating distribution systems. These experts will have the know-how and experience to advise you on the best heating and cooling solutions for your home to ensure you can stay at a comfortable temperature all year round.</p>
</blockquote>
<h3>3. Think twice before using buffer tanks</h3>
<p>Buffer tanks, also known as insulation tanks, feature within some domestic heat pump systems to stop the pump from short cycling. They work by keeping the smallest amount of water possible in the pump&rsquo;s circuit while the heating load is low.</p>
<p>Buffer tanks aren&rsquo;t always necessary, as most well-designed heating systems should function properly without the requirement of a buffer.</p>
<p>For things to run as they should, the heat pump has to run 10&deg;C hotter than is required to heat the building since buffer tanks have been shown to reduce temperature by 10&deg;C within a system when in use. Such an installation can permanently increase running expenses by 20% without any clear benefit. As a result, the system may have to work more to maintain a desired temperature.</p>
<h3>4. Keep your pump at a consistent temperature</h3>
<p>By keeping your ground-source or air-source heat pump system at a (fairly) consistent temperature as often as possible, you can reduce how hard it has to work to heat your home.&nbsp;</p>
<p>Think about it in terms of a car. If a vehicle consistently brakes to very slow speeds, it&rsquo;s going to take more fuel (or charge if it&rsquo;s an <a href="https://www.boxt.co.uk/ev-chargers" rel="follow">electric vehicle</a>) to bring it back up to cruising speed. If a driver maintains a manageable speed over long distances, not going too fast or too slow, they&rsquo;ll reduce the need for braking and acceleration, thus boosting fuel economy overall.</p>
<p>Heat pumps work in a similar way. If you let your heat pump system cool right down, it&rsquo;s going to have to work far harder to heat back up again and, in turn, use more electricity in the process.</p>
<p>To get around this, we advise setting your thermostat to stay at a specific temperature range; between 18&ordm;C and 21&ordm;C usually works well for most homes. By keeping your heat pump working within this range all through the winter months, you can minimise the amount of energy it consumes while heating your home.</p>
<p>You can read more expert tips and insights in our blog post on <a href="https://www.boxt.co.uk/boilers/guides/should-you-leave-your-heating-on-all-the-time" rel="follow">whether you should leave your heating on all the time</a>.</p>
<h3>5. Only heating the space you need to</h3>
<p>One of the most common ways to lose heat in your home is by allowing warm air to escape into unheated spaces, such as an office or spare bedroom.</p>
<p>Although we understand that it is tempting to shut off the heat to a room that&rsquo;s out of use, this cold space will act as a vortex for the heat you&rsquo;ve generated elsewhere in your home.</p>
<p>To prevent this, like before, we advise leaving the heating system on all the time while keeping the temperature set at 18&ordm;C. By doing this, you'll lessen the chance of warm air escaping and spend less energy heating a room when it's time to use it.</p>
<h2>Explore the possibility of heat pumps in your home with BOXT</h2>
<p>With heat pump technologies moving from strength to strength, an increasing number of UK homeowners are wising up to the environmental and financial benefits they can offer.&nbsp;</p>
<p>A hybrid heat pump is an excellent, energy-efficient way to heat your home, especially if you want to save money whilst reducing your carbon footprint.</p>
<p>Hybrid heat pumps have been shown to reduce carbon emissions by 60%, while the efficiency of these systems can also help you cut your household heating costs.</p>
<p>Here at <a href="https://www.boxt.co.uk/" rel="follow">BOXT</a>, we&rsquo;re working hard to make the home heating industry fairer and more affordable for all. We&rsquo;re real people who, like yourself, want the best energy solutions for your home.</p>
<p>Take the first step towards energy self-sufficiency by exploring our hybrid heat pump payment plans today. Or, if you still have questions about hybrid heat pump solutions, <a href="https://www.boxt.co.uk/contact-us" rel="follow">reach out</a> to one of our experts, who&rsquo;ll be happy to assist.</p>

How efficient are heat pumps? Our tips for optimal performance

Unlock savings with these government grants for heat pumps. Your complete guide to government incentives for a greener, more efficient home.

<p>If you're contemplating the switch to a heat pump system, you're on the right track to making your home more energy-efficient and eco-friendly.</p>
<p>In this comprehensive guide, we'll provide you with all the essential information you need to understand what government grants are available to you right now and how to apply for them.</p>
<p>Read on to discover how government grants can make your home more comfortable, sustainable, and budget-friendly.</p>
<h2>What heat pump grants are available in the UK?</h2>
<p>In the UK, heat pump funding is available through the following grants:</p>
<ul>
<li><a href="#h_34651489469971705061514414" rel="follow">Boiler Upgrade Scheme</a></li>
<li><a href="#h_66074475773411705061545158" rel="follow">Energy Company Obligation Scheme (ECO4)</a></li>
<li><a href="#h_31123799783381705061561265" rel="follow">Warmer Homes Scotland</a></li>
<li><a href="#h_42815057285371705061571372" rel="follow">Home Energy Scotland Scheme</a></li>
<li><a href="#h_11096337187341705061587751" rel="follow">Nest Scheme, Wales</a></li>
</ul>
<p>The Warmer Homes Scotland and Nest Scheme actually offer homeowners in Scotland and Wales the chance to get a free heat pump if they meet the eligibility criteria.</p>
<p>It's also possible to save up to &pound;750 on gas pump installation costs. Pay 0% VAT on clean energy technologies for 5 years (starting 23rd March 2022) on top of your chosen government grant.</p>
<h2 id="h_34651489469971705061514414">Boiler Upgrade Scheme</h2>
<p>The <a href="https://www.find-government-grants.service.gov.uk/grants/boiler-upgrade-scheme" rel="follow noopener" target="_blank">Boiler Upgrade Scheme</a> (BUS) is a government initiative to encourage more people in England and Wales to install low-carbon heating systems, such as heat pumps and biomass boilers (boilers that burn natural materials such as wood pellets, chips or logs), to reduce their carbon footprint.</p>
<p>Please note the grant will only cover biomass boilers in rural locations, in homes that are not connected to the gas grid, and with an emissions certificate showing that polluting emissions are kept to a minimum.</p>
<p>The Boiler Upgrade Scheme was launched in April 2022 and will be in effect till 2028.</p>
<h3>Who's eligible for the Boiler Upgrade Scheme?</h3>
<p>To be eligible, you'll need to:</p>
<ul>
<li>Own your property (this can be a home or a small business property) in England or Wales.</li>
<li>Have a valid Energy Performance Certificate (EPC) with no outstanding loft or cavity wall insulation recommendations. (There are some exceptions to this, please speak to your installer for further information.)</li>
<li>Be replacing fossil fuel heating systems (oil, direct electric, or gas boiler), not an existing low-carbon heating system.</li>
</ul>
<h3>How much funding is available for the Boiler Upgrade Scheme?</h3>
<p>From Monday, 23rd October 2023, the amount increased to a <strong>maximum of &pound;7,500 per household</strong>. It was previously a maximum of &pound;5,000 for air source heat pumps and &pound;6,000 for ground source heat pumps. Biomass boiler grants will remain at &pound;5,000.</p>
<h2 id="h_66074475773411705061545158">Energy Company Obligation Scheme (ECO4)</h2>
<p>ECO4 is the fourth wave of the <a href="https://ecoenergyimprovement.co.uk/" rel="follow noopener" target="_blank">Energy Company Obligation Scheme</a>. It replaced ECO3 on 27th July 2022 and runs until 31 March 2026. ECO4 is different to previous waves as it focuses on improving the least energy-efficient homes.</p>
<p>It covers boiler repairs, insulation, and replacing inefficient heating systems with low-carbon heating systems.</p>
<h3>Who's eligible for ECO4?</h3>
<p>To be eligible, you'll need to:</p>
<ul>
<li>Own a property with an EPC band of D-G.</li>
<li>Live in the home you own or rent privately.</li>
<li>Be in receipt of government benefits (e.g. child tax credit, income-based jobseekers allowance, housing benefit).</li>
</ul>
<p>If you're not receiving government benefits but are still considered low-income (under &pound;31,000 per household) or have a <a href="https://fundingservice.org.uk/eco4-flex-scheme-health-condition/" rel="follow noopener" target="_blank">long-term health condition</a>, you could still be eligible under the <a href="https://fundingservice.org.uk/la-flex/" rel="follow noopener" target="_blank">ECO4 LA Flex</a> scheme.</p>
<h3>How much funding is available for ECO4?</h3>
<p>Funding is available to cover all the costs of energy efficiency measures, so it shouldn't cost you a thing. The extent of the home improvements you'll receive depends on your household needs and energy supplier.</p>
<h2 id="h_31123799783381705061561265">Warmer Homes Scotland</h2>
<p>The Scottish government's <a href="https://www.homeenergyscotland.org/funding/warmer-homes-scotland/" rel="follow noopener" target="_blank">Warmer Homes Scotland</a> initiative offers funding and support to households struggling to keep on top of their energy bills and stay warm.</p>
<p>You can access the programme by contacting Home Energy Scotland, who will check what support is available. If your household is eligible, they'll then make a referral to the organisation <a href="https://www.warmworks.co.uk/our-work/warmer-homes-scotland/" rel="follow noopener" target="_blank">Warmworks</a> to carry out an assessment of your home. During this assessment, they will check what energy-saving home improvements are right for your home.</p>
<h3>Who's eligible for Warmer Homes Scotland?</h3>
<p>To be eligible, you'll need to:</p>
<ul>
<li>Live in a home you own or privately rent that is less than 230 square metres, where the council tax band is A-F and has a poor energy rating (determined during your assessment).</li>
<li>Have lived there for at least at least six months (unless in receipt of an SR1, a DS1500 or a BASRiS form).</li>
<li>Live in a home that meets the tolerable living standard set out in the Housing (Scotland) Act 2006 or, where the home does not meet the tolerable living standard, it will not impact the effectiveness of the recommended improvements for installation under the programme.</li>
<li>Live in a home that includes either a person who is over 75 with no central heating, a person who is in receipt of a DS1500 or BASRiS certificate completed by a medical professional, or a person who is in receipt of at least one of the passport benefits.</li>
</ul>
<h3>How much funding is available for Warmer Homes Scotland?</h3>
<p>The Scottish government will cover all costs in most cases. Most eligible homes will receive at least &pound;10,000 worth of support through the scheme.</p>
<h2 id="h_42815057285371705061571372">Home Energy Scotland Scheme</h2>
<p><a href="https://www.homeenergyscotland.org/" rel="follow noopener" target="_blank">Home Energy Scotland</a> is another scheme by the Scottish government (of which Warmer Homes Scotland is actually a part of) aiming to end fuel poverty in the country.</p>
<p>Homeowners in Scotland can apply for a standalone grant from the Home Energy Scotland Scheme to install air source or ground source heat pumps. There is an extra amount available for homeowners in rural areas.</p>
<p>Previously, applicants were required to sign up for a loan before they qualified for this funding, but they can now access the money directly. You can still opt for an interest-free loan of up to &pound;7,500 to cover the remainder of the cost.</p>
<h3>Who's eligible for the Home Energy Scotland Scheme?</h3>
<p>To be eligible, you need to:</p>
<ul>
<li>Own the property you live in.</li>
<li>Only use the grant/loan for one whole-house heating system.</li>
</ul>
<p>To be eligible for the rural uplift portion of the scheme, you need to be living in a Remote Rural and Island area or an off-gas Accessible Rural area, as defined by the Urban Rural Classification. Home Energy Scotland advisors will be able to tell you whether your property is eligible for this uplift. The application form will assess this based on your postcode.</p>
<h3>How much funding is available for the Home Energy Scotland Scheme?</h3>
<p>Homeowners can receive up to &pound;7,500 to install heat pumps. There is also the possibility of an extra &pound;1,500 for homeowners in rural areas, where it may be more expensive to install home improvements.</p>
<p>A standalone grant of &pound;7,500 for energy efficiency improvements to homes is also available.</p>
<h2 id="h_11096337187341705061587751">Nest Scheme, Wales</h2>
<p><a href="https://nest.gov.wales/" rel="follow noopener" target="_blank">The Nest Scheme</a> offers Welsh residents a range of free, impartial advice and, if you are eligible, a package of free home energy efficiency improvements such as a new boiler, central heating, insulation, solar panels or a heat pump.</p>
<p>Nest advisors can offer advice on:</p>
<ul>
<li>Saving energy and water.</li>
<li>Money management.</li>
<li>Making sure you&rsquo;re on the best energy and water tariff.</li>
<li>Whether you are entitled to any benefits to boost your income.</li>
</ul>
<h3>Who's eligible for the Nest Scheme?</h3>
<p>To be eligible, you have to:</p>
<ul>
<li>Own or privately rent your home (not from a local authority or housing association).</li>
<li>Have an energy inefficient home that is expensive to heat.</li>
<li>Receive a means tested benefit OR have a chronic respiratory, circulatory or mental health condition and an income below the defined thresholds.</li>
</ul>
<h3>How much funding is available for the Nest Scheme?</h3>
<p>All costs towards your heat pump could be covered by the Nest scheme if you&rsquo;re eligible. Depending on eligibility, Nest may offer you a new boiler, central heating, solar panels or insulation to help your home's energy efficiency.</p>
<h2>How to apply for heat pump grants</h2>
<p>How you apply for a heat pump grant depends on which one you're going to apply for. Here are the starting points for each scheme's application:</p>
<ul>
<li><strong>Boiler Upgrade Scheme: </strong><a href="https://mcscertified.com/find-an-installer/" rel="follow noopener" target="_blank">Get a quote from an installer</a>**</li>
<li><strong>ECO4: </strong>Complete this <a href="https://eco4.org.uk/eco-funding/apply-for-eco4-funding/" rel="follow noopener" target="_blank">online application form</a></li>
<li><strong>Warmer Homes Scotland:</strong> <a href="https://homeenergyscotland-advice.est.org.uk/SelfAssessment" rel="follow noopener" target="_blank">Contact an advisor</a> over the phone or via an online form</li>
<li><strong>Home Energy Scotland:</strong> Complete this <a href="https://www.homeenergyscotland.org/warmer-home/" rel="follow noopener" target="_blank">online self-assessment form </a></li>
<li><strong>Nest Scheme, Wales:</strong> <a href="https://nest.gov.wales/how-to-apply/" rel="follow noopener" target="_blank">Call an advisor or request a call back</a></li>
</ul>
<p>** Instead of applying for the Boiler Upgrade Scheme first-hand, you'll need to contact a suitable MCS certified installer to get quotes for the work. The installer will confirm you're eligible for an upgrade and apply on your behalf on the Ofgem website. The value of the grant will then be taken off the amount you pay for installation.</p>

Check out our comprehensive list of heat pump and hybrid heating system guides

We've got you covered...

Want more information on heat pumps?

<h2>Find more ways to reduce your energy bills and carbon footprint with BOXT</h2>
<p>Having a heat pump installed isn't the only way you can <a href="https://www.boxt.co.uk/boilers/guides/simple-ways-to-save-money-on-your-energy-bills" rel="follow">cut back on your energy bills</a> and reduce your carbon footprint.</p>
<p>It can be as simple as investing in rooftop <a href="https://www.boxt.co.uk/solar" rel="follow">solar panels</a> - which can also be done using a government grant - or adding external wall insulation and double glazing.</p>
<p>With BOXT, you can spread the cost of a <a href="https://www.boxt.co.uk/boilers/boiler-replacement" rel="follow">new boiler</a> over 1, 2, 3, 5 or 10 years with our flexible repayment plans. Better still, 1- and 2-year finance options are interest-free*.</p>
<p><a href="https://www.boxt.co.uk/boilers" rel="follow">Get a quote for an energy-efficient boiler from BOXT</a> or for a <a href="https://www.boxt.co.uk/solar" rel="follow">solar panel system</a> to start saving money and reducing your carbon emissions today.</p>
<p>*BOXT Limited acts as a credit broker and is not a lender. Any credit is subject to status, affordability and a credit check. Our finance platform is Divido and our lender is Novuna Consumer Finance. See our <a href="https://www.boxt.co.uk/solar" rel="follow">cancellation policy in full</a>.</p>

Government grants for heat pumps: Everything you need to know

Learn how heat pumps work in winter and how you can make yours more efficient in cold weather. Get the most from your ground or air source heat pump this winter. 

<p>Living more economically can be beneficial to the environment and your wallet. Due to their efficiency and effectiveness, many people are turning to heat pumps to live more sustainably.</p>
<p>The Government is also supporting the development of heat pump technology and unveiled its <a href="https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1166439/heat-pumps-investment-roadmap.pdf" rel="follow noopener" target="_blank">Heat Pump Investment Roadmap</a> in 2023.</p>
<p>Despite this, some concerns exist regarding how heat pumps perform in cold weather. After all, you'll rely on your heating system the most during the winter months.</p>
<p>Here, we explore how heat pumps work in cold weather and what you can do to stop your heat pump from freezing and ensure good levels of energy efficiency, even in cold climates.</p>
<h2>How do heat pumps work?</h2>
<p>There are two main types of heat pumps - air source heat pumps and ground source heat pumps - but, for the purposes of this overview, both operate in the same fundamental ways.&nbsp;</p>
<p><a href="https://www.boxt.co.uk/boilers/guides/air-source-heat-pump" rel="follow">Air source heat pumps</a> work similarly to air conditioners. In fact, an air-to-air heat pump is actually an air conditioner operating in reverse. Using its refrigeration cycle to create heating instead of cooling.&nbsp;</p>
<p>Heat pumps use a heat exchanger that extracts heat energy from the air or ground (depending on the type of device) and a compressor, which moves a refrigerant through the system. The hot refrigerant is then passed into another heat exchanger to heat water, which is then delivered into our homes via radiators or underfloor heating.</p>
<p>The way that heat pumps generate and transfer heat can make them more efficient and cheaper than electric heaters and boilers.</p>
<h3>Air source heat pumps</h3>
<p>Air source heat pumps absorb heat energy from the air to increase the temperature inside a home either by blowing warm air into the room, or heating water to use in radiators and underfloor heating, depending on the type of heat pump installed. The efficiency of air source pumps may vary depending on the season and the time of day.</p>
<p>Essentially, if it's mild outside, an air source heat pump will find it easier to transfer the warm energy into your home. Pretty straightforward, right?</p>
<h3>Ground source heat pumps</h3>
<p>A <a href="https://www.boxt.co.uk/boilers/guides/ground-source-heat-pumps" rel="follow">ground source heat pump</a> takes heat from the ground and transfers it into radiators, underfloor heating and hot water cylinders.</p>
<p>Because they absorb underground temperatures, ground source heat pumps offer a more consistent temperature all year round, making them a more dependable system than air source heat pumps.</p>
<p>With this being said, both types of heat pump can reliably produce high temperatures.</p>
<h2>How do heat pumps work in cold weather?</h2>
<p>Heat pump manufacturers design their systems to work in cold weather, and the refrigerant liquid inside heat pump systems can absorb heat in freezing weather, even to temperatures as chilly as -20&ordm;C.</p>
<p>As the air gets cooler outside, your air source heat pump's efficiency will drop, and it may use more electricity than it would on a warmer day to heat your home.</p>
<p>Although UK winters can get pretty nippy, the ground temperature rarely drops below 8&ordm;C, so a ground source heat pump will still be able to provide heat energy for your home, even when the weather is at its coldest.&nbsp;</p>
<p>The efficiency of heat pumps is measured using the coefficient of performance (CoP), which compares the input to the output. So, if your heat pump uses 0.5kW of electricity to produce 2kW of heat, the CoP is 4. The higher the CoP of your heat pump, the more efficient it is.</p>
<h2>Does the cold weather affect heat pump efficiency?</h2>
<p>Regardless of your heat pump type, it will work less efficiently in a cold climate. Air source heating systems, in particular, will find it difficult because the air temperature is typically lower than the ground temperature. A ground source heat pump may be a wiser investment if you live in a colder climate.</p>
<p>Another factor that will affect the performance of your heat pump, especially in cold weather, is the temperature you want your home to be. When it's chilly outside, you naturally want your home to be warmer, but this increases the strain on the pump, which can lower its efficiency and output.</p>
<h2>At what temperature does an air source heat pump stop working?</h2>
<p>The temperature at which an air source heat pump stops working will depend on the specific make and model. In the UK, we're fortunate that the air temperature rarely drops below -5&ordm;C. While most pumps may work less effectively at this temperature, they can still draw warmth from the outdoors.</p>
<p>Air source heat pumps are typically designed to work to around -20&ordm;C. At this temperature, the pump may struggle to extract enough heat from the air to warm your home.</p>
<p>If you live in an area where these temperatures may be possible, consider investing in a backup heating system, like electric heaters or radiators, that you could use to keep warm.<br>You should review the manufacturer's instructions and specifications to ascertain the precise temperature at which your heat pump may stop working efficiently.</p>
<p>Additionally, liaise with a professional installer as they may be able to recommend suitable systems.</p>
<h2>Do you have to winter-proof your heat pump?</h2>
<p>One of the first things you can do to winter-proof your heat pump is to ensure it's in an optimal position. Air source heat pumps must be located in a reasonable amount of space, allowing air to move freely.</p>
<p>Where possible, you should shelter your air source heat pump to protect it from snow and rain, as this can affect how efficiently it works in cold weather.</p>
<p>The most important thing you can do to maximise the efficiency of your air source heat pump is to ensure it's regularly maintained and looked after. Just as you should <a href="https://www.boxt.co.uk/boilers/boiler-servicing">service your boiler</a> each year in preparation for winter, you should have your heat pump inspected before the colder months, too.</p>
<p>Although it's unlikely, condensation can form and freeze on the outdoor component of the system, creating a layer of ice that will affect the pump's performance. To mitigate the risk of your heat pump freezing, you should have it inspected annually.</p>
<h2>What to do if your heat pump is frozen?</h2>
<p>A frozen heat pump can drastically decrease the appliance&rsquo;s efficiency - increasing energy consumption while reducing the pump's output. Here are six things you can do if you notice the performance of your heat pump has declined:</p>
<h3>1. Check the air filter (air-to-air heat pumps only)</h3>
<p>A clogged or dirty filter can restrict the airflow, making the pump more susceptible to freezing. If the air filter is dirty or clogged, you should clean or replace it in line with the manufacturer's instructions.</p>
<h3>2. Clear any debris from around the external unit&nbsp;</h3>
<p>In the colder months, snow, ice, and fallen leaves can all collect around the heat pump and cause blockages. If you notice any debris, clear it carefully, and if you feel confident enough, use lukewarm water to melt any ice and snow.</p>
<h3>3. Turn off your system&nbsp;</h3>
<p>If you're worried about potential damage being done to the system, you should switch it off. Depending on the type of heat pump you own, this could be as simple as setting the thermostat off.</p>
<h3>4. Wait for the ice and snow to thaw&nbsp;</h3>
<p>Although it could take a few hours, waiting for the pump to thaw naturally is the safest option.</p>
<h3>5. Check the refrigerant levels</h3>
<p>Low levels of refrigerant may be the cause of your freezing problems. If you think you may have a leak, contact a heating, ventilation and air conditioning (HVAC) technician to inspect your system as soon as possible. Do not try to fix a leak yourself.</p>
<h3>6. Make sure your heat pump is regularly maintained</h3>
<p>To prevent freezing issues, schedule regular maintenance. This will mean potential problems can be identified early, and all components can be kept in good working order.</p>

Choose a Daikin hybrid heat pump from BOXT

How does a heat pump work in winter?

What are ground source heat pumps, what do they do, and how do they work? We answer every question you may have about ground source heat pumps in our guide.

<p>Consumers have a lot to consider when heating their homes. The rising cost of energy is a huge factor that affects everyone. Choosing a sustainable energy solution for the home is a priority for many as well.</p>
<p>Finding a way to harness natural energy sources can be the perfect solution. However, selecting the right natural energy source for your home isn't always easy.</p>
<p>Ground source heat pumps are one option that is growing in popularity. Government incentives to reduce carbon emissions have encouraged homeowners to invest in greener energy options, like these heat pumps.</p>
<p>This article has all you need to know about ground source heat pumps, so you can make an informed decision about heating your home.</p>
<h2>What is a ground source heat pump?</h2>
<p>A ground source heat pump is a heating system that draws heat from the ground and transfers it to your home.</p>
<p>Radiation from the sun hits the Earth's surface and is stored beneath the ground.</p>
<p>The renewable energy heating system uses a network of pipes filled with water (or a combination of water and antifreeze) to take solar energy trapped underground or in ground water and circulate it into a building.</p>
<p>Horizontal or vertical ground loops are used to cover a larger area, depending on where they're installed.</p>
<ul>
<li><strong>Vertical ground source heat pumps</strong> require less land as they are buried vertically. However, the installation process needs specialist equipment, just as a drill is needed for a borehole.</li>
<li><strong>Horizontal systems</strong> require a significantly larger area of land, but the trenches required are easier to dig than drilling for vertical systems.</li>
</ul>
<p>Vertical systems are more efficient geothermal heating solutions, because they are installed further underground and can access greater temperatures.</p>
<p>Water source heat pumps are another option, but are less common than horizontal or vertical ground source heat pumps.</p>
<h2>How does a ground source heat pump work?</h2>
<p>A network of looped pipes is installed around the property.</p>
<p>A mixture of water and antifreeze is pumped around the system, absorbing the geothermal heat. Electricity is used to compress the mixture, which is then passed through a heat exchanger.</p>
<p>This heat exchanger heats up water, just like normal gas <a href="https://www.boxt.co.uk/boilers" rel="follow">boiler systems</a>. This hot water can then be stored in a hot water cylinder for domestic use or pumped around the home's central heating system to heat underfloor heating systems or radiators.</p>
<p><img src="https://cdn.buttercms.com/FIRp9NrzQIGGdxn7giW6" alt="Ground-source-heat-pump.webp"></p>
<h2>How much do ground source heat pumps cost?</h2>
<p>The cost of a ground source heat pump will vary depending on the size and type of system. The size of an efficient heating system is dependent on the size of the property. The bulk of the cost for ground source heat pumps is in the installation. Significant groundwork needs to be carried out for both options.</p>
<p>A vertical ground source heat pump will require a large area of land to be cleared and trenches dug for the installation. Vertical systems don't require as much land, but they do need specialist drilling equipment for installation.</p>
<p>The total cost of a horizontal ground source heat pump system for an average two-bedroom property may be up to &pound;20,000. Vertical systems would typically be slightly higher at around &pound;22,000.</p>
<p>Systems for three to four-bedroom homes see costs rise to over &pound;25,000 for horizontal systems and closer to &pound;50,000 for vertical systems. Vertical systems for larger properties need to be drilled down further, making the installation significantly more expensive.</p>
<p>The UK Government's Boiler Upgrade Scheme which was launched in the spring of 2022 and is due to end in 2025 can help reduce costs. The <a href="https://www.gov.uk/apply-boiler-upgrade-scheme/what-you-can-get" rel="follow noopener" target="_blank">Boiler Upgrade Scheme</a> offers grants up to &pound;7,500 towards installing ground source heat pump systems.</p>
<p>Other factors will impact the system requirements for your property. One of the most significant of these is the level of insulation your home has.</p>
<p>Properties with cavity and loft insulation, as well as energy-efficient windows, are better suited to this type of heating system. Older properties that aren't as energy efficient might struggle.</p>
<h2>What are the benefits of ground source heat pumps?</h2>
<p>The best way to decide whether a heating system suits your needs is by weighing up the advantages against the disadvantages. The following information will help you come to an informed decision about whether a ground source heat pump is right for your home.</p>
<h3>1. Cheap energy</h3>
<p>One of the biggest reasons that people are exploring ground source heat pumps as a heating option is because of rising energy bills.</p>
<p>If you are on a fixed tariff, you may be anxious about it ending and having to renegotiate. If you are already on a variable rate, your heating bill might be growing each month.</p>
<p>The Energy Saving Trust estimates that properties with old-style electric storage heaters could save as much as &pound;1,600 per year.</p>
<p>Having access to a renewable heat energy source that can reduce bills is a great incentive. Despite high installation costs, the low running costs still make it a tempting proposition.</p>
<h3>2. Green energy</h3>
<p>Another huge incentive is that it can reduce carbon emissions. Ground source heat pumps can be a great alternative to gas boilers.</p>
<p>They use a ground loop to absorb heat efficiently before transferring it to your home, so you can take advantage of the ground heat and thermal energy lying beneath your property.</p>
<p>The Energy Saving Trust estimates a ground source heat pump can save as much as 7,000 CO2 kg/year when converting from coal systems.</p>
<h3>3. Low maintenance</h3>
<p>Another benefit of installing a ground source heat pump is it requires very little maintenance. The pumps themselves will typically last a similar period as a regular boiler.</p>
<p>The ground loop system can last as long as 70 years, so you don't need to worry about replacing them for a long time.</p>
<h3>4. Consistent heat supply</h3>
<p>You might think that the ground temperature will be affected during the winter. While the top layer may be frozen or frosty, there is still sufficient natural heat further down where your ground loop system will be buried.</p>
<p>This can also be beneficial to homeowners if there are issues with a gas supply or maintenance work that cuts your supply for a period of time.</p>
<h3>5. Great energy efficiency</h3>
<p>A ground source heat pump improves your home's energy efficiency in several ways. The first being that it reduces the amount of gas you need for heating. By making use of a renewable energy source on your property, you will benefit straight away.</p>
<p>Another reason ground source heat pumps can improve efficiency is how they heat the home. This type of system does not run as hot as a gas boiler system. This will encourage the homeowners to implement measures in the home to improve efficiency, such as improving the home's insulation.</p>
<h2>What are the disadvantages of ground source heat pumps?</h2>
<p>While there are significant advantages, there are also disadvantages. These include:</p>
<h3>1. Installation costs</h3>
<p>There is no getting around it: the installation costs of ground source heat pump heating systems are off-putting. Whilst the long-term running costs may be low, the initial outlay for installation is tens of thousands of pounds.</p>
<p>Government grants are in place to help reduce this cost, but they can still be expensive.</p>
<h3>2. Suitability of a property</h3>
<p>Not all properties will have suitable areas to install ground loops.</p>
<p>Gardens need to be large enough - horizontal heating systems usually require several hundred square metres.</p>
<p>The area would need to be clear of trees or outbuildings. Tree root systems can cause issues with ground loops so this is essential.</p>
<h3>3. Might not suit current heating systems</h3>
<p>Modern heating systems and boilers are designed for efficiency and aesthetics. This can mean smaller, more powerful radiator systems.</p>
<p>A ground source heat pump does not generate the same heat as conventional heating systems. This means the water that flows around the central heating system will not be as warm. Using radiators that conduct heat well is important. In this case, aluminium is a perfect material.</p>
<p>Ground source heat pump systems are good for people that plan on fitting underfloor heating. The type of heat generated is better suited to constant heating rather than short bursts of heat provided by direct electric heating systems.</p>
<h3>4. May require home improvements</h3>
<p>Preparing your home for a ground source heat pump can also be expensive. As well as considering the installation costs of the system, you will have to consider whether your home is suitable.</p>
<p>The heating systems in your home should be able to emit the heat required to provide your home with an ambient temperature. Installing underfloor heating can be a great idea for newbuilds or remodelling.</p>
<p>The home must also be well insulated for this type of heating system to be effective. Preparing a home for a ground source heat pump will be beneficial, but it can be expensive.</p>
<h2>How efficient are ground source heat pumps?</h2>
<p>A ground source heat pump will still need to use electricity. However, its Coefficient of Performance (COP) shows it is one of the most efficient heating systems available.</p>
<p>The COP is a ratio that determines the power required by a system in comparison to its output. The COP of an average ground source heat pump is around 4. This means that for every 1 kW (unit) of energy required to power a heat pump, it generates 4 kW (units) of heat.</p>
<h2>Is a ground source heat pump right for my home?</h2>
<p>Determining whether a ground source heat pump is right for your home is essential before making your decision. You need to ensure your property is suitable, and that you will be able to generate enough heat for your hot water and central heating needs.</p>
<ul>
<li>A <strong>well-insulated home</strong> is a must for this type of heating system. Being able to keep an ambient temperature in your home without too much effort is best.</li>
<li>The best heating systems for the home include <strong>larger radiators and underfloor heating</strong>.</li>
<li>You must also ensure you have the <strong>space on your property</strong> if you plan to install a horizontal system in your garden.</li>
<li>The pump is also relatively large and <strong>installation in basements or outbuildings</strong> is best. The system works best when there is less space or temperature difference between the ground loops and the heat distribution system.</li>
</ul>
<p>A good installer will be able to advise on the size and positioning of the equipment required.</p>
<p></p>

An air source heat pump works in a similar way but draws heat energy from the air instead of the ground.
Air temperature is subject to greater fluctuations than the ground temperature, so it can be less efficient, but it can still be a great option.
A great benefit of installing an air source heat pump on your property is that it won't require the same groundwork. The air source heat pump machinery can be set up near your home without the costly installation for ground source alternatives.
The air source heat pump system can then provide hot water for bathrooms and kitchens, as well as provide heat for central heating systems.

Read our full guide on air source heat pumps

Air-source heat pumps are a great alternative to ground source heat pumps

What are the best alternatives to ground source heat pumps?

<h2>Final thoughts</h2>
<p>There has been lots of publicity about renewable heating solutions over the last few years. Rising energy costs have also helped to improve the public's knowledge of these systems.</p>
<p>A heat pump could be a great option to reduce your carbon footprint. However, there is still some way to go before it matches the performance of traditional boilers.</p>
<p>Our <a href="https://www.boxt.co.uk/boilers" rel="follow">energy-efficient boilers</a> are all installed by Gas Safe registered engineers. They can provide hot water and warm radiators almost immediately.</p>

Ground source heat pumps: Everything you need to know

How effective are heat pumps at heating your home? Are they worth the investment? Check out BOXT's guide to discover whether heat pumps are worth it in 2024.

<p>The UK government continues its push to reach net zero emissions by 2050. Heat pumps and hybrid heat pumps form a large part of their plans, and the government is encouraging homeowners to have them installed.</p>
<p>However, are heat pumps <em>currently</em> worth the investment?</p>
<p>This guide will examine this question, discussing the different types of heat pumps, their pros and cons, alternatives, and whether it's worth it to install one in your home.</p>
<h2>What types of heat pumps are there?</h2>
<h3>Ground source heat pumps</h3>
<p>Ground source heat pumps are also known as ground-to-water heat pumps. They work by transferring heat from the ground that surrounds your home to heat the radiators or underfloor heating inside your home.</p>
<p>A ground source heat pump can also be used to heat water that's stored in a hot water cylinder, which can then be used to supply hot water for your home.</p>
<h4>How do ground source heat pumps work?</h4>
<p>It works by using a mixture of water and antifreeze known as thermal transfer fluid (TTF). When installing a ground source heat pump, a loop of pipe is buried underground in your garden. This will either be a long loop of pipe that's inserted into a borehole or a long or coiled pipe that's buried in a trench.</p>
<p>The thermal transfer fluid passes through this pipe and absorbs heat from the ground. The heated fluid then passes through a heat exchanger and then a heat pump. This causes the temperature of the fluid to rise, and then this heat is transferred to water.</p>
<h3>Air source heat pumps</h3>
<p>An <a href="https://www.boxt.co.uk/boilers/guides/air-source-heat-pump" rel="follow">air-source heat pump</a> system, also known as an air-to-water source heat pump, transfers heat from the air outside of your home to water.</p>
<p>As with ground-source heat pumps, air-source heat pumps absorb heat via a fluid. This passes through a heat exchanger and then a heat pump before the heat is transferred to the water.</p>
<p>This water is then used to heat your home and provide you with hot water.</p>
<h2>The benefits of heat pumps</h2>
<p>Heat pumps are growing in popularity, and it&rsquo;s clear to see why with these benefits:</p>
<h3>1. Heat pumps are energy efficient</h3>
<p>A heat pump is more energy efficient than a gas boiler which helps to reduce carbon emissions. Both an air-source heat pump and a ground-source heat pump use electricity in order to compress and transfer heat energy.</p>
<p>Heat pumps are more efficient than other heating systems because the amount of heat they produce is more than the amount of electricity they use. A heat pump can also run on green energy, which makes them even more efficient and eco-friendly.</p>
<h3>2. Heat pumps have long lifespans</h3>
<p>Heat pumps are more durable than conventional heating appliances, such as gas boilers, and last around 15 years on average.</p>
<h3>3. Heat pumps are safer than gas boilers</h3>
<p>Although gas boilers are generally safe, there is still a chance of something going wrong. After all, a gas boiler burns combustible fuel to generate heat. This causes a lot of pressure and can lead to various problems.</p>
<p>If you have an air-source heat pump or a ground-source heat pump, then you won't have this concern. Heat pumps are inherently safer than gas boilers due to both the absence of a flammable fuel source and the lack of products of combustion, including carbon monoxide. There's no fuel or combustion to worry about.</p>
<h2>The drawbacks of heat pumps</h2>
<p>While there are many benefits of heat pumps, there are a few disadvantages to consider:&nbsp;</p>
<h3>1. Heat pumps are very expensive</h3>
<p>Unfortunately, it currently costs a lot of money to have a heat pump installed. If you want to install an air source heat pump, it will cost between &pound;7,000 and &pound;20,000 in total.</p>
<p>Ground source heat pump installation is even more expensive - expect to pay between &pound;15,000 and &pound;40,000 in total.</p>
<p>Clearly, air-source heat pumps are much more affordable than ground-source ones. Still, they're both costly investments.</p>
<h3>2. You might have to replace your radiators</h3>
<p>Heat Pumps work better when the water in the radiators is heated to a lower temperature, so you may need to replace some of your radiators with larger ones to make the most of your heat pump's efficiency.</p>
<p>This is why the cost of installation could be high compared to replacing a gas boiler, where you would simply connect to the existing radiators.</p>
<h3>3. They're not ideal for all types of heating systems</h3>
<p>Heat pumps work best in homes with underfloor heating systems. Of course, the majority of homes in the UK don't have this type of heating system. Although they still work well for heating radiators and supplying hot water, heat pumps are best suited to new builds.</p>
<h2>Are heat pumps worth the investment?</h2>
<p>The main downside of installing a heat pump is the prohibitively high upfront cost. Although you could <a href="https://www.boxt.co.uk/boilers/guides/simple-ways-to-save-money-on-your-energy-bills" rel="follow">save money on your energy bills</a>, it will take a long time for you to recover the costs of the installation (if you ever do).</p>
<p>Whether or not the investment is worth it depends on your financial circumstances and the type of heat pump you choose.</p>
<p>As mentioned, air-source heat pumps cost a lot less than ground-source ones. If you're able to find an air source heat pump in the lower price range, it may be worth having one installed. However, if you pay around &pound;7,000 for a heat pump, it may not have as much longevity as a more expensive model.</p>
<p>Due to the high costs of heat pump installation, the UK government has made &pound;450 million of funding available to installers. These grants are awarded on behalf of property owners to reduce installation costs. This is known as the Boiler Upgrade Scheme (BUS).</p>
<p>Depending on the type of heat pump you choose, you may be eligible for &pound;5,000 or &pound;6,000 in grants from the BUS. If you're eligible, a heat pump could be worth the investment. Still, if your heat pump installation costs &pound;40,000 in total, you'll still need to pay around &pound;35,000.</p>
<h2>What are the best alternatives to heat pumps?</h2>
<p>Are heat pumps looking a little too costly right now? Here are some alternatives you could consider for the future.</p>
<h3>A gas or oil boiler with a heat pump</h3>
<p>Using a hybrid system, such as a gas or oil boiler, combined with a heat pump is a good alternative to using a heat pump alone. This is particularly true for older homes with small radiators.</p>
<p>How does this work?</p>
<p>Most air source heat pumps work at a water flow temperature of 40 to 45&deg;C, but gas and oil boilers usually work at a water flow temperature of 65 to 75&deg;C. This means that heat pumps on their own are often unable to heat older homes to an adequate temperature without replacing radiators.</p>
<p>By combining the two systems, gas or oil boilers can assist heat pumps to provide enough heat to your home when the weather turns chilly.</p>
<h3>Electric boilers</h3>
<p>Electric boilers don't use natural gas, which makes them a good eco-friendly alternative to heat pumps. They're also far less expensive than heat pumps and far easier to install. It's unlikely that your home would require new water storage cylinders or radiators if you installed an electric boiler.</p>

<h2>Final thoughts from BOXT</h2>
<p>Currently, many homeowners will find the cost of installing a heat pump prohibitive. Although you could save money on your energy bills, the upfront costs are still very high.</p>
<p><br>The main reason for installing a heat pump is that it's much more eco-friendly than a traditional boiler. However, it may be worth considering an alternative, such as a <a href="https://www.boxt.co.uk/boilers" rel="follow">new boiler from BOXT</a>, which is much more affordable.</p>

Discover the best boiler for your home with BOXT

Are heat pumps worth it? A revised and updated guide for 2024

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

An air source heat pump or a ground source heat pump? Which one is right for you? Read our complete guide to find out. 

<p>Whether you&rsquo;re concerned about being more environmentally friendly or you&rsquo;re looking to reduce your energy bills, investing in a heat pump might be a worthy investment.</p>
<p>But which heat pump should you choose? Air source or ground source?</p>
<p>In this complete guide, we'll be comparing these two heat pumps to determine which one would be right for you. So, without further ado, let's take a look:</p>
<h2>What is an air source heat pump?</h2>
<p>Air source heat pumps (ASHPs) are a relatively new form of home heating system. Generating hot water by using natural heat energy in the outside air rather than fossil or non-renewable fuels, ASHPs are being championed for their eco credentials and lower carbon emissions. Some models of air source heat pumps can operate as both heating and cooling systems, making them well-suited for people living in areas with colder winters and hotter summers.</p>
<h3>How does an air source heat pump work?</h3>
<p>Heat energy from the outside air gets drawn into a network of tubes. These tubes are filled with refrigerant gas, which gets compressed and increases the temperature from cold to hot liquid.</p>
<p>This hot liquid then goes through a heat exchanger that warms up the water for the radiator and taps.</p>
<h2>What is a ground source heat pump?</h2>
<p>A ground source heat pump is a device that draws heat from the ground and transfers it into your home. Due to radiation from the sun, heat gets stored beneath the surface of the Earth with nothing to cool it down.</p>
<p>Through a network of pipes which are filled with water (or a combination of water and antifreeze), this renewable energy heating system takes this solar energy and circulates it into your home.</p>
<p>Ground source heat pumps can also be installed in two ways: vertically and horizontally.</p>
<ul>
<li><strong>Vertical ground source heat pumps</strong> take up less space, however, the installation process needs specialist equipment and you may not receive as much heat.</li>
<li>A <strong>horizontal system</strong>, on the other hand, requires a significant space and the installation process requires digging trenches.</li>
</ul>
<p>Water source heat pumps are another option, but are less common.</p>
<h3>How does a ground source heat pump work?</h3>
<p>The ground collectors are placed underground, either vertically or horizontally, and refrigerant inside circulates around to absorb heat energy that is naturally stored in the ground. Inside the heat pump, the warm refrigerant is compressed and passes through a heat exchanger, heating the rest of the home appliances.</p>
<p>Much like the air source heat pumps, the fluid is cooled down and the cycle repeats itself.</p>
<h2>What&rsquo;s the difference between an air source heat pump and a ground source heat pump?</h2>
<p>Now, it doesn't take a rocket scientist to work out one obvious difference between air source and ground source heat pumps; ASHPs generate heat from the air, whereas GSHPs generate it from the ground!</p>
<p>But, besides this, are there any other differences between these two types of heat pumps? Let's take a look.&nbsp;</p>
<h3>Air source vs ground source: How much do they cost?</h3>
<h4>The price of air source heat pumps</h4>
<p>On average, an air source heat pump costs in the region of &pound;10,000 to buy and install. In some instances, this figure could be much higher, with larger or older properties typically needing bigger and more expensive pumps to meet their heating requirements. Why? Because older houses tend to be less well insulated than modern new-builds meaning they will lose more heat through walls, attics, windows and doors. Larger homes will inevitably have larger hot water requirements than smaller homes, simply because there will be more rooms with more radiators!</p>
<p>This price can certainly be off-putting, which is why the government has implemented the <a href="https://www.gov.uk/guidance/check-if-you-may-be-eligible-for-the-boiler-upgrade-scheme-from-april-2022" rel="follow noopener" target="_blank">Boiler Upgrade Scheme</a> to provide &pound;5,000 grants for homeowners purchasing their heat pumps.</p>
<p>If we look at the annual running costs, an air source heat pump amounts to &pound;1,360 which is slightly more than a gas boiler's running cost (&pound;1,236 per year). That said, air source heat pumps shouldn't require as much maintenance as a <a href="https://www.boxt.co.uk/boilers" rel="follow">boiler</a> or ground source pump, so the hefty price tag may be worth it in the long run.</p>
<h4>The price of ground source heat pumps</h4>
<p>Ground source heat pumps have far more complex and labour-intensive installation processes than air source alternatives meaning that, perhaps unsurprisingly, they cost considerably more, too.</p>
<p>If your ground loop is already buried, you can expect to pay around &pound;24,000, but if you need to dig a borehole, it'll cost you around &pound;49,000.</p>
<p>Now, ground source heat pumps are still eligible for the government&rsquo;s Boiler Upgrade Scheme grants, but you&rsquo;ll only be able to claim a maximum of &pound;6000 towards the cost of purchasing and installing one. When we compare this to the total amount you can expect to pay, it&rsquo;s immediately clear that the current financial incentives don&rsquo;t really scratch the surface. Ultimately, this makes ground source heat pumps an unaffordable heating system for the vast majority of homeowners, especially at a time when we&rsquo;re all feeling the pinch more than ever.</p>
<h3>Air source vs. ground source heat pumps: Space requirements</h3>
<h4>How much space does an air source heat pump need?</h4>
<p>For air source heat pumps, you'll need space outside for the pump unit to pull in air and space inside for the water storage tank. Any walls or objects should be a minimum of 30cm away from the back and sides of the heat pump and there needs to be 1.5m of space in front, with nothing to obstruct the space.</p>
<h4>What about a ground source heat pump, how much space does one take up?</h4>
<p>As expected, ground source heat pumps require more space than air source pumps. Much more. This is because, rather than being a standalone unit that can sit adjacent to your home, GSHPs have many metres of complex pipework, all of which must be installed underground.</p>
<p>If you do decide that a ground source heat pump is the heating system for you, though, you&rsquo;ll have two options when it comes to actually installing it outside your home; vertically or horizontally. Let&rsquo;s take a look at these in a bit more detail.</p>
<ul>
<li><strong>Vertically</strong></li>
</ul>
<p>Vertical heat pumps take up less space than horizontal heat pumps and are much more efficient. One of the main issues you'll face with vertical heat pumps is access to the drilling rig since the pump will be confined below the ground.</p>
<p>One borehole that is 25cm across and 100cm deep is enough for most UK homes. Larger properties, however, may need several boreholes with a 5-6m gap between them.</p>
<ul>
<li><strong>Horizontally</strong></li>
</ul>
<p>Horizontal heat pumps cover more ground and can be trickier to install and maintain. The trenches for ground loops are 100m wide and 1-2m deep. This much should hold 200m of pipe - 100m away from the property and 100m towards it. The size of your property will impact the number of trenches you'll have, especially if you want to heat your home adequately.</p>
<p>Ground source pumps come in all shapes and sizes. Some are small enough to fit in an airing cupboard, whereas others are as big as a washing machine. In general, heat pump space should be around 1x3m in size.</p>
<h3>Air source vs. ground source heat pumps: Maintenance and lifespan</h3>
<h4>Maintaining an air source heat pump</h4>
<p>An air source heat pump warranty is usually two to three years, depending on the manufacturer.</p>
<p>To maintain your air source heat pump and improve its longevity, clean your unit regularly with a soft brush and sweep away any dirt or debris that may be blocking the system. You can also replace your air filters, though this job will require an installer.</p>
<p>In order to meet and maintain your heat pumps warranty, you must have annual servicing. However, much of the general maintenance can be carried out by yourself, including keeping &nbsp;your system clean.&nbsp;</p>
<h4>Maintaining a ground source heat pump</h4>
<p>Like air source heat pumps, ground source heat pumps are also relatively low maintenance.</p>
<p>Again, regular maintenance is necessary to keep a healthy heating system running smoothly, and annual servicing is a must. Looking after your heat pump will help increase its lifespan, so it&rsquo;s worth providing it with the TLC it needs!</p>
<h3>Air source vs. ground source: Output and performance</h3>
<h4>How much heat can air source heat pumps generate?</h4>
<p>In comparison to a boiler, heat pumps produce less heat.</p>
<p>An air source heat pump loses efficiency below 0&deg;C since they rely on outside air. Once the temperature falls, so does the heat output. During the winter months, you may end up having to prioritise what&rsquo;s more important: a warm room or hot water.</p>
<p>Because of this reason, air source heat pumps can be unreliable and could actually cause a lot more problems for you and your family.&nbsp;</p>
<h4>How much heat can ground source heat pumps generate?</h4>
<p>Since these heat pumps are buried, they can produce a stable amount of heat that isn't impacted by changing climates.</p>
<p>A ground source heat pump can generate around 3 to 4 kilowatts of heat for every 1 kW of electricity that gets absorbed. Since we&rsquo;re using heat from the ground, the energy efficiency is much higher, as nothing below six metres can dramatically alter the temperature.</p>
<p>That being said, the size of your ground loops will determine how much heat your pump will be able to extract and once your ground pump is installed, it&rsquo;s very difficult to go back and make changes.</p>
<p>Once a substantial amount of heat has been taken from the ground, the temperature will fall from 10℃ to 0℃ or colder. As a result, the heat pump will need to work really hard to circulate the heat and produce the same amount for all heat outputs in the home.</p>
<p>A four bedroom house, for example, may have differing temperatures of water and two rooms might not be as warm as the other.</p>
<h2>Should you replace your boiler with a heat pump?</h2>
<p>Most UK homes were built for boilers, so replacing it with an entirely new system can be challenging.</p>
<p>Heat pumps can be great as an environmentally friendly alternative but you should consider whether you can heat your household on one alone. Another option could be to use both systems, where your boiler is your backup, safe source of heat, but you try using heat pumps where and when you can.</p>

<h2>Heat your home with BOXT</h2>
<p>While heat pumps do have their plus points where the environment is concerned, they just aren&rsquo;t right for everyone. Don&rsquo;t worry, though, this doesn&rsquo;t mean that there aren&rsquo;t eco-friendly options available to you.</p>
<p>At BOXT, we offer a wide range of options so you can find the best boiler for your home by answering a few questions. <a href="https://www.boxt.co.uk/boilers" rel="follow">Get a boiler quote now</a>.</p>

Find the best boiler for your home using our online Find a Boiler tool

Heat Pumps guides

Showing 0 results