High-temperature heat pump for the retrofi t market in France
The retrofi t of heating systems represents a signifi cant market in France. Nowadays, high-temperature heat pumps make an interesting alternative to boilers, with real advantages in term of CO2 emission and energy effi ciency. Another advantage of heat pumps lies in the energy that can be saved over a year. The HSPF (heat seasonal performance factor) is therefore the most appropriate parameter for relating to actual heating energy bills. HSPF is the ratio of the total heat delivered over the heating season to the total energy input over the heating season. In the study, fi eld test results on a French house will be presented, as results of simulations calculating the HSPF.