The Energy Savings Trust has produced a comprehensive report on heat pumps

September 8th, 2010 by Gavin Lanoe

On 8 September 2010 the Energy Saving Trust published a comprehensive report on the efficiency of heat pumps.  The report “Getting Warmer: a field trial of heat pumps” examined 54 ground source pumps and 29 air source pumps over a 12-month period.

The report finds that homes that benefit most from heat pumps are those currently using oil or electricity heating systems.  Well designed heat pumps deliver on average three units of heat for every unit of electricity used to pump heat around the dwelling.

The heat load of a building should be minimised by insulating the building well before considering the use of heat pumps.

The study found heat pumps that did not perform well.  Heat pumps must be well-sized to match the heat load of the building or their efficiency is significantly reduced.

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