renovation old building, Germany

The house, built in 1987, has 230 m2 of heated living space. 170 m2 are heated with underfloor heating, the rest with classic radiators. Due to the enormous oil consumption of 2,500 3,000 litres of oil per year, the two homeowners decided to switch to an iDM air heat pump.

All technical data can be found in the PDF file:

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