Submitted by peon2 t3_10p5xyg in pittsburgh
kistner t1_j6jagc2 wrote
Reply to comment by mmphoto412 in Is everyone's utilities pricing insane or am I getting screwed? by peon2
It probably isn't efficient or I would have seen it more than twice in 30 years. But it is simple, water heater, pump, thermostat.
mmphoto412 t1_j6jas28 wrote
Based on some quick googling, it is a thing, however it seems to be only used in mild climates.
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