You could buy a mini split heat pump from mitsubishi today. Five units of heat for every one of electricity. Rock solid reliability. I'm not sure it needs reinv

You could buy a mini split heat pump from mitsubishi today. Five units of heat for every one of electricity. Rock solid reliability. I'm not sure it needs reinventing. What it needs is a better service industry so you can get them installed and maintained cheaply. Cheap installation, maintenance and repairs of the heat pumps we already have, that would change the world.