WWestfale0101 2023-01-09 11:26:56#1Thank you very much. Then I have to take another look. It is "only" an old building from the 60s with us and not a new building with perfect insulation or a KFW house. Best regards!
Thank you very much. Then I have to take another look. It is "only" an old building from the 60s with us and not a new building with perfect insulation or a KFW house. Best regards!