The price of district heating may not reflect the actual efficiency of insulation zo. Classic commie-block walls are 30-40 cm of bare (reinforced) concrete. Th

The price of district heating may not reflect the actual efficiency of insulation zo. Classic commie-block walls are 30-40 cm of bare (reinforced) concrete. The windows as they were put there are double glass in a wooden frame, which you have to glue over with a paper in winter. Sure, replacing windows and slappign styrofoam on a facade helps, but beating that doesn't seem to be hard when building now.