Air Source Heat Pumps

Air Source Heat Pumps - What Are They & How Do They Work?

A heat pump or (ASHPs) absorb heat from the outside air to heat your home and hot water. They can still extract heat when air temperatures are as low as -15°C.

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 them an energy efficient method of heating your home

HOW Air source heat pumps work

Generate Heat From The Air

Heat from the air is absorbed at low temperature into a fluid. This fluid passes through a compressor, increasing the temperature, and transfers that higher temperature heat to the heating and hot water circuits of the house.

Alternative To Conventional Heating

Unlike gas and oil boilers, heat pumps deliver heat at lower temperatures over much longer periods.

Reduce Carbon Footprint

The system is more likely to pay for itself if it’s replacing an expensive system like electric heating or oil fire boilers.
Air Source Heat Pumps

RHI Payments

You may be eligible for RHI payments (Renewable Heat Incentive). This means for every unit of energy produced, the Govt. will pay you in quarterly payments

Government Grants Available

You may be entitled to substantial Govt grants to help fund your new ASHP. Contact us for more information.

How do Air Source Heat Pumps Work

ASHP is a process that by using the principle of vapour compression, transfers the hot air from a place to another exactly in the same way as the system of a refrigerator does. Heat pumps work much like a fridge operating in reverse to heat your home. Outside air is blown over a network of tubes filled with a refrigerant. This warms up the refrigerant, and it turns from a liquid into a gas. 


How much does an Air Source Heat Pump cost?

Upfront cost of an air source heat pump is something to consider. The pump itself can cost around £9000, with installations costs to be added. However, it’s by far the most efficient and green long term option to heat your home. Consider this: for every 1kw of energy an air source heat pump uses, it can create 4kw of heat energy. That makes it 400% efficient compared to oil and gas, which is 90% efficient at best.

Solar Thermal Panels RHI Payments

#Grant support

Save on installation costs with the Renewable Heat Incentive

The Renewable Heat Incentive is designed to help individuals and businesses install renewable heating systems. The RHI pays out quarterly to homeowners who qualify for payments and is guaranteed for 7 years. 

#Further benefits

£5000.00 Government contribution for a new ASHP from April 2022

In April 2022, the Government has announced a further £5000.00 contribution towards the cost of a brand new ASHP. However, an ASHP is not suitable for all properties and therefore recommend you take of ‘ASHP Reality Check’ before embarking on a quote.    

Air Source Heat Pump Grants

Have You Thought About Solar PV (Electricity)

Generating electricity from the sun is one of the best ways investment you can make. Solar PV coupled with battery storage is a great way to reduce your electricity bills

What are the pros and cons of air source heating?

Advantages of Air Source Heating

There are numerous benefits to using air source heat pumps to heat your property. Air source heating is a great alternative to traditional heating methods and could save you money, particularly if you live ‘off grid’ and have a well insulated property. Here are some of the advantages to air source heating:

Whilst there are many positives, there are also other factors to consider when investing in an Air Source heat system: 


Renuvo Award Winning Low-Carbon Heating Organisation


Most frequent questions and answers

If you have radiators in your home, and you’re switching from a gas-fired heating system to an air source heat pump, you’ll probably need to buy some bigger radiators to keep your house warm

It looks a bit like an air conditioning unit, but sits on the floor outside your house. So you’ll need to have some outdoor space preferably in a sunny area – for it to be located.  You will also need to consider space for a water tank inside your home.  If you don’t have room for a water tank then a hybrid heat pump might be the way to go

Yes, the two main types are:

  • Air to air heat pumps
  • Ait to water heat pumps

Yes, quite possibly. Please bear in mind that for the best energy efficiency you may need to consider upgrading your home’s insulation. Our retrofit co-ordinator would be able to advise you on the best solutions for your property.  

From Solar Photovoltaics to ground source heat pumps

Low-carbon Heating Solutions

With so many different low-carbon technologies available, it can be a daunting process trying to find the right one that suits your property.  The above links provide useful information about each specific technology and how this may benefit you and your property. 

Air Source Heat Pumps


Find out if your property is suitable for an Air Source Heat Pump Installation by answering a few questions.