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How Air Source Heat Pumps Work

Air source heat pump

An air source heat pump is an environmentally friendly alternative to a traditional boiler. An installation comprises of a ‘monobloc’ unit outside of your house, a hot water cylinder inside your property, and would connect up to your existing radiators or underfloor heating.

Air to Water Heat Pumps

Because they connect up to a wet system, (e.g. radiators) these heat pumps can also be described as 'air to water heat pumps'.
This is not to be confused with air-to-air heat pumps, which use air instead of radiators or underfloor heating, to provide heat. Air to Air Heat pumps do not qualify for government subsidies, and this form of heating can result in 'dry' air.

If you have no existing wet heating system, we can also assist you with the design, supply, and installation of radiators/underfloor heating.



Funding for Air Source Heat Pumps

The Renewable Heat Incentive, or RHI, is the name of the government's funding for renewable energy heating systems. With heat pumps, the government will contribute a large part of (or in occasionally all of) the installation cost. These are quarterly payments for 7 years, in a similar way to the funding works for solar PV.

Please click here for information on Heat Pump subsidies


Introduction to Mitsubishi Ecodan Air Source Heat Pump

Heat Pump Efficiency

Regardless of the outside temperature, a conventional boiler uses the same volume of fuel to produce a unit of heat – and even the newest models are not efficient enough to turn one unit of fuel into one unit of heat.

Heat pumps on the other hand use sensors to measure the outside temperature, and adjust their settings accordingly. The measure of a heat pump’s efficiency, averaged over a year, is called the seasonal coefficient of performance (SCOP).

Our heat pumps provide a SCOP of at least 3.2, meaning 1 unit of electricity is used to produce at least 3.2 units of heat.

Air source heat pumps offer significant savings for all properties off the gas grid, especially when replacing an LPG, or oil heating system.

Heat From Thin Air: The Vapour Compression Cycle

In the same way that a fridge extracts warm air from inside to stay cold, air source heat pumps extract the warmth from the air from outside, using the Vapour Compression Cycle.
Read More

Heat Pumps Vapour Compression Cycle Diagram

Which Heat Pump Do I Need

Correctly sizing a suitable air source heating system for your property requires a technical design process, whereby a series of measurements will need to be taken and heat loss calculations made.

Heat Pump FAQs

Do you still have unanswered questions?
Please give us a call on 01473 727727, or check our list of Heat Pump Frequenty Asked Questions.

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