> Heat pumps are also a vastly overrated technology which only work for very well insulated houses with an HVAC system which keeps the rooms ventilated artificially.
Well that's weird. I live in 1875 adobe house with no HVAC system other than my wall-mounted minisplits. The house is poorly insulated (adobe has high thermal mass but is a very poor insulator, plus lots of leaky windows and roof construction details). The heat pumps kept us warm during this last winter's 5F overnights.
Well that's weird. I live in 1875 adobe house with no HVAC system other than my wall-mounted minisplits. The house is poorly insulated (adobe has high thermal mass but is a very poor insulator, plus lots of leaky windows and roof construction details). The heat pumps kept us warm during this last winter's 5F overnights.