Air Source Heat Pumps

Air Source Heat Pumps

Air source heat pumps (ASHPs) absorb energy from the air outside to heat your homes and hot water. They can still extract heat when air temperatures are as low as -15 degrees.

Air source heat pumps need electricity to run but because they are extracting renewable heat from the environment the heat output is greater than the electricity input. This makes ASHPs a very energy efficient method of heating your home.

What We Can Do

We are fully MCS accredited and experienced air source installers. We provide a free consultation discussing your needs to find the perfect renewable heating solution for your home. 

Your Consultation

One of our qualified surveyors will visit your home and discuss with you your requirements and provide options as to what system will best suit your needs. We will then provide a free, comprehensive, no-obligation quotation.

Once the installation is agreed, one of our accredited installers will visit your home, and install the air source heat pump.

Finally, once your new renewable heating system is installed, we will give you a complete pack, including everything from our first point of contact, the consultation and to the end of the installation. This will include the MIS3005 Heat Loss Calculation report and the EPC, which is all needed for the RHI Application.

What we can do for RHI

We can assist you in applying for the Renewable Heating incentive, by conducting a MIS 3005 Heat Loss Calculation. Examining, room-by-room, the heat loss from your home. Taking into account the size of your windows, the floor and ceiling types, how the walls are constructed and the type of doors in your home.

We can also carry out an Energy Performance Certificate (EPC), which shows the energy efficiency of your home. This is required in order to apply for the RHI.

Government Financial Support

You may be eligible to receive payments for the heat you generate using a heat pump through the UK Government’s Renewable Heat Incentive (RHI).

What is RHI?

The RHI is a Government schemed developed to promote the use of renewable heating system technology to help reduce the UK’s carbon emissions and meet the UK’s target of reaching net zero emissions by 2050.

The RHI scheme will close to new applications in March 2022.

How much could you earn?

How much you can earn over the seven-year period depends on the type of heating system and the property age and size. To calculate the RHI funding on offer, homeowners must have an Energy Performance Certificate (EPC) less than 2 years old and as part of the installation the MCS accredited installed will conduct a MIS 3005 heat loss calculation. This is a room-by-room heat loss calculation taking into account the size of windows, the floor and ceiling type, how the walls are constructed and the type of doors in the property.

An EPC will also examine the status of other typical energy efficiency areas within the property, such as double glazing and loft and cavity wall insulation which may help reduce the house’s overall energy consumption. To qualify for the RHI, a minimum of 270mm loft insulation must be in place and any cavity wall construction must be internally insulated unless deemed exempt.

When do you receive the RHI payments?

Once the installation has been completed and commissioned by an MCS accredited installer, the installer will use an MCS certificate and the homeowner can register the install online. Subject to eligibility the RHI payments will be paid each quarter for seven years.

Who is eligible?

All homeowners could be eligible for the RHI when retrofitting a heat pump, subject to the building having the appropriate measures and all relevant planning requirement being met. New build properties are not eligible unless they are self-build properties. To claim the RHI you must choose an MCS approved installer and the property must be in England, Scotland or Wales.

How much do they cost to install?


The cost of installing an air source heat pump  will depend on the size of the property it needs to heat. On top of this you might have any additional works required to upgrade the heat distribution system. Generally speaking installing a heat pump is not especially disruptive work, though you may want to carry out this work at the same time as other home renovations.

We can provide you with a free no-obligation quotation for installing an air source heat pump that suits your homes requirements.


How much you can save will depend on the system that you use now, as well as what you are replacing it with. Your savings will be affected by:

  • Your Heat Distribution System Underfloor heating can be more efficient than radiators because the water doesn’t need to be so hot. if underfloor heating is not possible, we advise you to use the largest radiators you can.
  • Your Fuel Costs You will still have to pay fuel bills with a heat pump because it is powered by electricity, but you are likely to save money on your fuel bills (depending on the type of heating you are replacing).
  • Your Old Heating System If your old heating system was inefficient, you are more likely to see lower running costs with a new heat pump.
  • Water Heating If the heat pump is providing hot water, then this could limit the overall efficiency. You might want to consider solar water heating to provide hot water in the summer and help keep your heat pump efficiency up.
  • Using Controls – Learning how to control your system to get the most out of it important. You will probably need to set the heating to come on for longer hours, but you might be able to set the thermostat lower and still feel warm. We can advise and explain how you can control your system so you can use it most effectively.

What are the Benefits of Air Source Heat Pumps?

How Much Could I Save? (£/year)

Source: Energy Saving Trust Based on installing a standard air source heat pump in an average sized four-bedroom detached home

CO2 Savings (kg/year)

Source: Energy Saving Trust Based on installing a standard air source heat pump in an average sized four-bedroom detached home

Types of Air Source Heat Pump


Air-to-Water heat pumps absorbs heat from the outside air and transfer the heat to water.

An air-to-water system distributes heat via your wet central heating system. Heat pumps work much more efficiently at a lower temperatures than a standard boiler system would. This makes them more suitable for underfloor heating systems or larger radiators, which give out heat at lower temperatures over long periods of time.


Air-to-air heat pumps require a warm air circulation system to move the warm air around your home. They will not provide you with the hot water as well. Air-to-air heat pumps are not eligible for the UK government’s Renewable Heating Incentive scheme.


Heat pump systems typically come with a warranty of two to three years. Workmanship warranties for heat pumps can last up to 10 years for example, through Quality Assured National Warranties (QANW). Many manufacturers also offer options for warranty extensions for a fee.

With regular scheduled maintenance, you can expect an air source heat pump to operate for 20 years or more.

Every year, you should check that the air inlet grill and evaporator are free from leaves or other debris. Remove any plants that start to grow near the heat pump. You may also be advised by your installer to check the central heating pressure gauge in your house from time to time.

We can provide you with written details regarding the maintenance checks you should undertake to ensure everything is working properly. We can advise you on the maintenance requirements before you commit to installing a heat pump.

Book Your Free Consultation Today

Get In Touch

01908 211 127

Available from 08:00 – 17:00

Address Bridge House, Bridge St., Olney, Buckinghamshire, MK46 4AB