Services Details

Air Source Heat Pumps (ASHP)

ASHP’s absorb heat from the outside air which can be used to heat radiators, underfloor heating, warm air convectors and hot water in your home.


An air source heat pump works like air conditioning but backwards,
heating the home by extracting air from outside. It can get heat from the air even when the temperature is as low as -15° C.


Heat pumps have some impact on the environment as they need electricity to run, but the heat they extract from the air is constantly being renewed naturally.
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Benefits of air source heat pumps

  • Lower fuel bills, especially if you are replacing conventional electric heating and oil.
  • Potential income through the UK government’s Renewable Heat Incentive (RHI) which can be as much as £1500 a year for 7 years.
  • Lower home carbon emissions, depending on which fuel you are replacing
  • No fuel deliveries needed
  • Can heat your home and water
  • Little maintenance required
  • Easier  and cheaper to install than a ground source heat pump

Unlike gas and oil boilers, heat pumps generally deliver heat at lower temperatures over much longer periods. However, with the new R32 refrigerants replacing older refrigerants, heat pumps can now get up to temperatures of 60 degrees. 

 

How do air source heat pumps work?

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


An air-to-water system distributes heat via your wet central heating system. Heat pumps work much more efficiently at a lower temperature 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 longer periods of time.

Maintenance

All our heat pumps come with a 7 year warranty. You can expect your heat pump to operate for 20 years or more, however they will require annual maintenance.


We advise to carry out a quarterly check to ensure that the air inlet grill and evaporator are free of leaves or other debris.

Any plants that have started to grow near the heat pump unit will also need to be removed.


We advise you to check the central heating pressure gauge in your house from time to time. We will show you how to do this.

To prevent the heat pump from freezing in cold winter weather anti-freeze is used.


Levels of anti-freeze and its concentration is one of the things that we will check when we come to service your heat pump. If your heat pump has external refrigeration pipes, (very unusual for a domestic system) these will need to be serviced annually by a refrigeration engineer (something we can do as well).

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