Anybody using heat-pumps to warm their homes?
I know a couple of homes that have them. One is a substantial farmhouse using a ground-source heat-pump system. Terribly sophisticated with underfloor thermostatic temperature control in every room, including the garage. Horrendous capital outlay to install it, mitigated only by the fact the farmhouse was a new build. Allegedly cheap as chips to run, but I do wonder what the long-term reliability will be like.
The other is an old timber home in northern Idaho, where they have serious winters. That home has an air-source heat-pump system with warm air ducted to every room, supplemented by a log burner which is called into service when the snow is feet thick and the temperate way below zero Fahrenheit.
I'd be interested in hearing other people's experiences of heat-pump systems.