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Air source heat pump cost guide
by
Checkatrade

£ Material prices in the UK are higher than normal Read more

If you’re looking for a clean way to heat your home whilst saving money on your energy bills, then an air source heat pump could be for you. And with the recent announcement of the £5,000 heat pump grant, an air source heat pump may be something you wish to explore for your home. The new grant will open in April 2022. This grant also applies to ground source heat pumps too.

Keep reading to find out more about the average air source heat pump cost in the UK.

What is an air source heat pump?

An air source heat pump uses the energy from the outside air to heat the building. It’s a very energy-efficient way of generating heat and is supported by the government’s new Clean Heat Grant, which will replace the Renewable Heat Incentive (RHI) scheme.

The installation of an air source heat pump does generally cost more than more traditional heating systems but have very low maintenance costs. They can be installed anywhere in the UK to provide heating and are a good option if you’re planning to minimise the environmental impact of your home.

It’s expected that air-to-water heat pumps are likely to become common in the UK thanks to the grant, but also because they can deliver a home’s heating and hot water on-demand.

ItemCost rangeAverage cost
Supply air source heat pump: Air-to-water (5kw - 17kw)£4,000 - £8,000

£6,000
Install air source heat pump: Air-to-water£5,000 - £10,000£7,000
Supply and install air-to-air air source heat pump (heating capacity 5kW)£1,600 - £3,100£2,500

Our costs are ballpark averages – get a local tradesperson to quote now

How much does an air source heat pump (ASHP) cost?

On average, the supply and installation of an air source heat pump will cost in the region of £3,000-£18,000.

Air-to-water is the more expensive option, costing an average of £13,000 for supply and install. Air-to-air on the other hand is around £3,100 for supply and install.

Air source heat pumps are typically the more expensive option than many traditional heating systems, but the benefit to the environment is considerable.

The high cost of air source heat pump installation has often been deemed a problem for many homeowners, when compared to a new gas boiler installation for example. However, the real benefit comes both in the carbon-free emissions and the significant reduction of ongoing energy bills. And with the new heat pump grant being available in April 2022, it may be a viable option for you now.

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Factors affecting the cost of air source heat pump installation

When calculating the cost of your air source heat pump, here are some of the things you need to keep in mind:

  • Size of your property: If your property is big then it would need a more powerful heating source, which will push the price up.
  • Insulation: If the property is not insulated properly, then the heating needs to work harder to maintain a consistent temperature.
  • The pump brand: Some brands of air source heat pump cost more than others.
  • The pump’s performance and efficiency: More powerful and efficient pumps will cost more.
  • Room temperature: If you want a higher room temperature, you may need a more powerful pump.

Air source heat pump cost calculator

In order to answer the question ‘how much does an air source heat pump cost?’, you need to take into account the installation cost as well as performance cost.

Air source heat pump installation cost

This cost to install an air-to-water air source heat pump is around £5,000 – £10,000. The range is dependent on the factors that affect the cost of the air source heat pump installation.

You can get a more reliable quote if you post a job with your specific requirements. We will forward it to heat pump installers in your area and they will send you their quotes.

Air source heat pump running cost

So, how much do you spend to run this heat pump? That depends on three factors.

  • The coefficient of performance of the heat pump: How efficient the pump is (the ratio of the power input and power output).
  • Required room temperature: Since these heat pumps are designed for a temperature of 50o C, you will get lower efficiency if you require higher temperatures. That would lead to higher running costs.
  • The temperature of the heat source: You will get better efficiency if the pump is installed in an area with lots of sunlight and good airflow.

Air source heat pump installation quote

To get an accurate air source heat pump installation quote, you would need to provide a comprehensive description of what you need. This includes the size of the property you want to heat, the power and brand of the pump you want, where you want it installed, and how warm you want your rooms.

We also recommend that you get quotes from at least three reliable sources so you can get the best price. To make it easier for you, we offer a ‘get a quote‘ feature where you list your job requirements and we get a quote from tradespeople in your area. Try it now!

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Air source heat pump installed outside houseReduce the air source heat pump price with the Clean Heat Grant

To help homeowners invest in green energy solutions, the government introduced a financial subsidy called the Renewable Heat Incentive (RHI). This will soon be replaced by the new heat pump grant under the Clean Heat Grant.

You can soon apply for the heat pump grant, which, if successful, will contribute up to £5,000 for you to swap your gas boiler for a low-carbon heat pump. It has been introduced as part of government plans to cut emissions. It has the potential for a huge cost saving for installing your new air source heat pump.

Benefits of air source heat pumps

There are a number of benefits from installing an air source heat pump:

  • Cheaper energy bills
  • Installation costs subsidised by the government (for eligible homes)
  • Lower carbon emissions
  • Minimal maintenance needed
  • Heats air and water for your home
  • Doesn’t use fossil fuels
  • No danger of dangerous gases being emitted

One thing to note is that during winter, you may need to have your ASHP on constantly. This is because heat pumps deliver heat at lower temperature over much longer periods. This is different to a gas boiler, which typically feeds radiators at 70 degrees celsius.

How does an air source heat pump work?

There are two main types of ASHP available: air-to-water and air-to-air.

Air-to-water air source heat pump

An air-to-water heat pump is the most common model in the UK and works by absorbing heat from the air outside and transfers the heat to water. This type of heating system distributes through your wet central heating system and work more efficiently at lower temperatures than a standard boiler system.

An air-to-water heat pump is particularly well-suited to underfloor heating, where it gives out lower temperature heat over longer periods of time. Air-to-water is also well suited to underfloor heating due to the large heat transfer surface area.

The installation cost for an air-to-water air source heat pump is around £5,000 to £10,000.

The supply cost of an air-to-water air source heat pump is anywhere between £4,000 – £8,000.

Air-to-air air source heat pump

An air-to-air heat pump uses a fan system to absorb warm air from outside and circulate it around your home. This type of heating system doesn’t support water heating and isn’t eligible for the government’s Renewable Heat Incentive (RHI) scheme.

The cost for a professional to supply and install an air-to-air air source heat pump is usually in the region of £1,600 to £3,100.

Useful air source heat pump checklist

  • Speak to a local air source heat pump expert for their professional advice and accurate quotes.
  • The installation cost for an ASHP is £5,000 – £10,000, but the new heat pump grant scheme may contribute up to £5,000 towards this.
  • Shop around for fair and competitive prices for an air source heat pump.
  • Always hire a tradesperson with proven experience and ideally a heat pump installer who is accredited to the Microgeneration Certification Scheme (MCS).

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FAQs

Do I need to keep my old heaters and furnace after I install an air source heat pump?

It depends on the type you install.

An air-to-air heat pump will heat your home but not the hot water, so you’ll need a heat source for this.

An air-to-water heat pump should heat your home and water, but you may want a backup/top up for winter.

While an air source heat pump provides energy-efficient heat, it might not be sufficient by itself when the temperatures drop. That is why you might need to have a backup for the colder days.

How long does the air source heat pump take to install?

On average, it takes 3 days to install. A ductless system can be installed in 1 day.

What is a ductless system?

This is a system that does not require air pipes. These use devices similar to bathroom wall fans to blow air.

How long will an air source heat pump last?

If you maintain it properly, your heat pump could last 15 to 20 years.

How can I get the best out of my air source heat pump?

Your house should be well insulated, this will make sure you get the best out of your pump.

If new insulation is something you need to consider, check out the cost of cavity wall insulation.

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