What is an Air Source Heat Pump (ASHP)?

Air source heat pump at the back of a house.

What’s An Air Source Heat Pump (ASHP)?

Air source heat pumps, ASHP’s, are a type of ‘fit and forget’ technology that is used to power heating systems within a home or business. Air source heat pumps are placed outside at the back or side of the building where it collects latent heat from the atmosphere. An air source heat pump is similar, in looks and size, to a domestic air conditioning unit, and emits a comparable level of noise.

Different Types of Air Source Heat Pumps

There are two main types of Air source heat pumps, air-to-air and air-to-water. Air-to-water systems extract heat from the outside air transferring it into your wet central heating system. Air-to-air systems transfer heat collected from the outside into your home via fans. An added bonus is that in summer an air-to-air source heat pump can be operated in reverse, working in a similar way to an air conditioning system, therefore providing cool air for your home or office space.

How do Air source heat Pumps Work?

Air source heat pumps work by absorbing latent heat from the atmosphere into a refrigerant fluid within the system. The ‘heated’ fluid then passes through a compressor where the temperature is further increased. Finally the heat produced is used within radiators, underfloor heating, domestic hot water systems and even warm air convector units. Air source heat pumps ‘collect’ heat from the air in the same way a domestic refrigerator does from its interior. Heat can be collected at temperatures as low as -15 degrees C but work most efficiently at temperatures above 5 degrees C.

What are the benefits of installing Air source heat pumps?

• Air source heat pumps can provide hot water and heating for homes and businesses

• Savings between £160 - £550 per annum are possible (based on current prices2017)

• Far lower carbon emissions than conventional heating systems.

• ASHP’s cost less than ground source heat pumps and are easier to install, especially if/when retrofitting.

RSS Energy Install air source heat pumps to homes and businesses

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