So how do air source heat pumps work? To put it very simply, they absorb heat from the air outside, compresses it to create energy and use this to heat your home. Just like a fridge, which draws in air from outside then cools it rapidly, the air source heat pump does the same thing but in reverse.

The ASHP sits outside your home, looks similar to an air conditioning unit. The heat in the air is used to heat a liquid refrigerant which evaporates. The pump then compresses the vapour, increasing the temperature. A heat exchanger is then used to warm water which can be used throughout your home – for hot water, in radiators or underfloor heating.

Unlike gas and oil boilers, air source heat pumps deliver constant heat at lower temperatures over much longer periods. It’s set to start working automatically meaning you’ll always have hot water and is great at maintaining a consistent environment in your property. Gone are the days of juggling the thermostat. But remember: a well-insulated home is essential.

The systems are smart and the intelligent energy efficient control system including via an App allow full control of your homes heating and hot water from anywhere, using your smartphone, tablet or PC. Clever stuff.

Frequently asked questions

Yes, air source heat pumps work in temperatures down to -20 degrees C. Just like a fridge, that works well even if the outside air is warm, the air source heat pump will still heat your home and provide hot water even if it is freezing outside.

Our assessors use a SCoP (Seasonal Coefficient of Performance) calculation combined with your property heat loss data to work out the size of heat pump you need. Generally speaking, we advise installing a slightly larger one to ensure you have ample heating and hot water at all times.

Air source heat pumps don’t make as much noise as most boilers. Mitsubishi has launched some of the quietest heat pumps ever available in the UK. This provides complete flexibility on where the ASHP can be installed in your property whilst complying with Permitted Development.

The Microgeneration Certification Scheme (MCS) has a calculation which installers must carry out before a new air source heat pump is set up. The MCS2020 rules measure the noise a unit will make.

The Mitsubishi systems we use have the Noise Abatement Society’s Quiet Mark and with the “ultra-Quiet Ecodan ASHP’s they are so quiet that they virtually eliminate planning restrictions. Check out Mitsubishis press release on the Ultra Quiet range. https://les.mitsubishielectric.co.uk/latest-news/ultra-quiet-ecodan-takes-heat-pumps-to-the-next-level

One of the main benefits of an air source heat pump, besides the obvious reduction in carbon emissions and positive impact on the planet, is cheaper energy bills. There is a massive difference to monthly bills when using this technology compared with traditional electric or oil heating.

Source:Energy Saving Trust Website

But it goes further than that. Because these systems are very efficient, they create more heat proportionate to the electric used. Roughly speaking they create 3-4 Kilowatt hours of energy for every kilowatt used.

But if your replacing a new Central heating system for example a new A-rated gas boiler an ASHP could actually work out more expensive. So, speak to us to run the numbers.

The Government’s Renewable Heat Incentive Scheme (RHI) also gives homeowners and businesses the opportunity to claim payments. You can find out more about this scheme, and how much you can claim, by visiting our Government grant page

Yes, as mentioned above, there are grants available for the installation as well as towards energy bills for seven years – with quarterly payments.

You can find out more about this scheme, and how much you can claim, by visiting our Government grant page

A lower impact on the environment, easy to use systems and cash from the government are just three reasons to install an air source heat pump. But they also elimate “hot spots” often found in properties using electric or oil heating and can also be used to cool air in the summer.

They work with radiators, underfloor heating and alongside existing warming systems to create an efficient way to heat your home.

Yes, a hybrid system can be installed which can work with your existing boiler. You also won’t need to change your radiators. Our team can identify what system can work with your current infrastructure.

To speak to one of our experts, or find out more about air source heat pumps, contact us today.

What happens next?

When choosing us to install your air source heat pump, we have a clear and transparent process – keeping you fully informed at every stage.

Step 1:
One of our trained assessors will visit your property to design a solution that fits your requirements. At this stage, we look to see if your home is suitable for an air source heat pump and take into consideration the type and size of the property, how it is built and heat loss.

Step 2:
Working with our partners Mitsubishi, we will design a suitable system. Not every home suits an air source heat pump and we will advise you of which systems will work for your property and any adjustments that need to be made.

Step 3:
You will receive our proposal via email. This will be fully costed and bespoke to your property with expected timescales. If you’re happy with the proposal, then we will work with you to arrange the installation.

Step 4:
We request a 25% deposit when you place your order with the balance required on completion. Commissioning is carried out by fully trained MCS accredited engineers.

Step 5:
Stay warm while saving the planet!

After your system is installed, we offer full training and support as well as notifying the MCS installation database which allows you to claim the Government RHI grant for seven years ( for domestic installations) .