16 February 2022
Final Report – Part 4 Annex 32: Economical heating and cooling systems for low energy houses
Prototype systems
New integrated heat pump systems for the application in low energy houses
This report gives a summary of the system concepts and designs as well as lab-testing and
simulation results of the prototype systems of integrated heat pumps developed in the frame
of IEA HPP Annex 32 on “Economical heating and cooling systems for low energy buildings”.
Since the functionality of the building technology is extended in low energy houses due to
mechanical ventilation needs and an additional comfort cooling, integrated heat pumps have
advantages of internal heat recovery options, while the heat would be probably wasted in
appliances with single functionality, e.g in case of combined space cooling and water heating.