A fűtési költségmegosztás gyakorlata - Ezermester 2009/2
How to read a central heating meter - Life in Germany - Toytown Germany
Techem Smart Heating BE - Apps on Google Play
Panel energiatakarékosság , költségmegos - Index Fórum
Techem Smart Heating BE - Apps on Google Play
What is this thing on the radiator? It looks like it has a small button and a display, its currently reading some numbers. It seems to be attached to the radiator very