Air source heat pumps (ASHPs) absorb heat from the outside air. This heat is then used to provide renewable heating and hot water to your home. Heating can be achieved via radiators, underfloor heating systems or warm air convectors and can even be fitted into existing systems with minor upgrades sometimes required. An ASHP uses simple refrigeration technology to extract heat from the outside air which allows it to work efficiently even at outside temperatures as low as -20°C.

In general, heat pumps need some electricity to run, however the heat generated far outweighs the energy required to run the heat pump. For Example, if the ASHP is running at a temperature of 35oC then its around 400% efficient, meaning for every 1kWh of electricity the air source heat pump uses it generates over 4kWh of heat. If it’s running at 55oC then it’s around 318% efficient. This is why they are much more environmentally friendly than a conventional fossil fuelled systems that at best are 90% efficient and also why the government offer income via the RHI scheme upto £12,000.

What are the benefits of an air source heat pump?

There are many benefits available when utilising an air source heat pump system:

  • The cost of running an ASHP is much less than other methods, such as oil, LPG or conventional electric heating;
  • The Renewable Heat Incentive scheme (RHI) could potentially make your installation cost neutral or bridge the gap to install a Heat Pump in comparison to conventional systems;
  • An ASHP has a low carbon footprint and will be a major part in the UK reaching Net Zero;
  • The energy you generate with an air source heat pump can be used to heat your home and provide hot water;
  • No more Fuel deliveries for those off grid needing Oil or LPG
  • Fuel savings between 10 to 70% in some instances;
  • Coupled with Solar PV even further savings can be achieved.

 

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