Its always funny reading such comments while others are running for years their heat pumps without any problems needing a backup. Not only they are used in Sca

Its always funny reading such comments while others are running for years their heat pumps without any problems needing a backup. Not only they are used in Scandinavia for years. Also in Germany they are used for years. The company Waterkotte operates since the 1980s in Germany and is a pioneer in this showing it is working. But there are always people ignoring the facts.