Under the ErP Directive, when installing additional heating technologies alongside your heat pump a ‘package label’ is needed. This details the overall system efficiency rating. It does not apply if you are only installing a heat pump with a hot water cylinder, as this combination is not seen as a ‘package’ under the Directive.
By combining additional technologies such as solar and controls, you can actually improve the overall package efficiency. Each product would effectively add an efficiency percentage to the heat pump’s seasonal space heating ErP rating.
For example, a 10kW Aerona3 (featuring integral weather compensation and controls) with a Grant DuoWave 300 litre heat pump cylinder and a two collector on-roof Sahara solar thermal kit, can achieve an ErP package rating of A+++.