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0 pointsLazyMans3y ago0 comments

This guy is a great resource if you want to understand what goes into a proper A2W system install. In Europe, it seems by law they are required to do heat loss calculations to size an install. In the US, it seems to be a little more loose. https://www.youtube.com/watch?v=0IvGe4JZLSU

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mikeyouse3y ago· 1 in thread

I saw a video recently from a ... less sophisticated place in the US... where the HVAC installer literally held up a piece of paper from the street with different sized houses on it, and sized the HVAC based on which of the houses best "covered up" the actual house when looking through the semi-transparent paper. Just astonishing. No consideration at all for the build quality/insulation details, no adjusting for the distance from the road, just a "welp, this looks like a 3-ton job".

LazyMansOP3y ago

That's insane. Proper sizing is paramount, it's also a good way to surface that 5k in insulation improvements might be the better first step to consider vs installing a larger system just to keep up with losses.

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