Letter to the editor from Klaus Lehmeyer
With great interest I read your article “The search for alternatives in the heating sector” in the magazine HZwei, booklet 1, January 2019.
I have had a fuel cell heating system for almost a year now. I spent quite some time looking for a new heating system for my building (built in 1955). As a certified energy consultant and efficiency expert, I have not made the task easy for myself.