30 November 2022

Executive Summary Annex 50:Heat Pumps in Multi-Family Buildings for Space Heating and Domestic Hot Water (DHW)


The present report documents the results of Annex 50 “Heat Pumps in Multi-Family Buildings for Space Heating and DHW”. The work started officially in 2017 and was planned for 4 years.

The active Annex group consisted of seven countries (Austria, Denmark, France, Germany, Italy, Netherlands, and Switzerland).

The focus of the Annex 50 was on solutions for multi-family residential buildings, with the
attempt to identify barriers for heat pumps in this field and how to overcome them. Upon the demand of the participating countries, new buildings and retrofit have been considered, together with buildings with a higher specific heating demand.