While some organisations advocated a ‘fabric first’ approach, which involves improving the thermal performance of materials in a building prior to installing a heat pump, others suggested that it is not necessary, making it difficult for households to determine cost- effective measures. In their written evidence to us, the Energy & Utilities Alliance and National Energy Action both suggested, for example, that a fabric first approach would reduce bills and cut energy consumption, while the Ke...

While some organisations advocated a ‘fabric first’ approach, which involves improving the thermal performance of materials in a building prior to installing a heat pump, others suggested that it is not necessary, making it difficult for households to determine cost- effective measures. In their written evidence to us, the Energy & Utilities Alliance and National Energy Action both suggested, for example, that a fabric first approach would reduce bills and cut energy consumption, while the Kensa Group highlighted that loft and cavity wall insulation reduced heat-related energy consumption by only around 10%.27 DESNZ told us that it planned to Type: conclusion | Number: 14 | Response status: partially_accepted Government response: The government agrees with the Committee’s recommendation. Target implementation date: to be confirmed 2.2 The implementation of recommendations is dependent on further steers from new ministers, and the department will inform the new Committee as soon as an