4 ms·
Is this not a waste of energy?
by HL33tibCe7 3y ago
Is this not a waste of energy?
- fabian2k 3y agoCompared to what? Permanently venting air is a much bigger waste of energy. Most of the heat is in the walls, not the air anyway.
- theshrike79 3y ago5 minutes of cool air entering the house isn't a huge amount, but it does bring in fresh air.
- orbital-decay 3y agoYes, to a certain degree it undermines the point of having good insulation (as in, really good - when the thermal mass of the air starts to matter). Modern "nearly zero-heating" houses have long heat exchangers in the vents to avoid the waste.
- ikekkdcjkfke 3y agoTrade off
- the_mitsuhiko 3y agoSince forced-air heating is uncommon in Europe the impact is not that high. The radiators or under floor heating stays warm and will re-heat the air very quickly.
- zeitgeistcowboy 3y agoNo, not necessarily. If it lowers the humidity, then it can take less energy to heat the house after venting. So it can actually save energy.
- Daniel_sk 3y agoMinimal. Most houses have thick walls and there is a lot of accumulated energy - the air reheats quickly after closing the windows.