The Energy Saving Trust is currently carrying out heat pump field trails and is due to report in 2010, DECC energy efficiency minister Joan Ruddock told Labour former environment minister, Janet Anderson in a written answer.

But she added that: “The Department does not hold information on the accredited efficiencies of heat pumps. However, under the Microgeneration Certification Scheme (MCS), product certification of heat pumps includes information on performance.”

Hansard, 12 Nov. Column 667W

http:// www.ukmicrogeneration.org