The technology installed was Chop cloc, a retrofit heating controller over ride which turns the heating off for 15 to 45 minute in each hour as set by the resident to take advantage of radiant heat from the building fabric and contents. It claims not to affect thermal comfort, and to save up to 30% and an average of 16% on home heating bills.

The purpose of this project was to evaluate the effectiveness of new electric boilers (Amptec C1200 electric boiler, manufactured by Heatrae Sadia) installed in a housing estate in central England.