The COP value is an important indicator for comparing the efficiency of heat pumps. The coefficient of performance (COP) measures the efficiency of a heat pump. Specifically, the COP value that dealers put on their devices indicates the ratio of thermal power to the drive energy (electricity) needed to generate it. This efficiency is determined on the basis of theoretical calculations or under specific test conditions. As a general rule, the COP must be greater than 4.3 for the installation to qualify for a subsidy.
Please note: performance figures are not necessarily indicative of the overall annual efficiency of the heat pump system. The annual coefficient of performance (ACOP) shows the ratio of annual heating energy production to drive and auxiliary energy consumption. It thus provides a clear picture of the efficiency of the system as a whole, including the auxiliary energy consumed, for example, by the heat pump and the brine circulation pump. It is therefore always necessary to determine the annual coefficient of performance for the installation site and the building in question. As a customer, always insist that this coefficient be calculated!