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lostlogintoday at 4:14 PM3 repliesview on HN

That’s an awful lot of power.

I’m waiting on a quote for an hvac that uses its waste heat for the home hot water. Im irritated that I’m cooling the house, pushing out hot air, and heating water at the same time.


Replies

lm28469today at 4:21 PM

Get a basic heat recovery unit, it basically has no moving parts (just a few fans) and good ones recover 90%+ of the heat going out of your house. It's almost useless if you don't have an airtight envelope though.

All in one systems with water heating are way too complex and _will_ fail relatively quickly, mini heat pumps won't last 10 years, and by the time it dies you won't be able to find a replacement for your specific model

show 2 replies
sponaugletoday at 4:18 PM

On that avenue, I do push hot air from my homelab into my upper garage for heat. If it below 50deg outside I also bring in some cold air from outside. Both are somewhat free offsets for heating/cooling.

kccqzytoday at 5:14 PM

You just need an air source heat pump water heater and install the water heater next right to the outdoor unit for the HVAC.