Heat pump is what I would have expected to be suitable for a setup like that. How big is the house I wonder.
I imagine my system is probably sufficient to keep an 800 sqft house comfortably warm in a climate where it goes down to the 20s in the winter.
alt Hacker News
I imagine my system is probably sufficient to keep an 800 sqft house comfortably warm in a climate where it goes down to the 20s in the winter.