Quote:
Originally Posted by reallydedpoet
Also, somebody mentioned insulation, that is very important, at the top of the list really. In other words, worry about keeping the heat in first, then how you heat second.
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Depends on the substance of the building you live in. It can get overestimated very often. In fact, it does. Before I spend a 5 digit sum of money (or more) into isolating an appartement house, I would check the projected financial calculations for the coming 20 years over and over and over again. However, it pays off if the substance is really bad, of course.