[timbit42]

As long as they remain more efficient than resistive heaters down to the lowest temperatures you experience, it's a win. Heat pump efficiency is still improving. You can get heat pumps that can handle down to -35°C now with even better ones in the works.

[eldaisfish]

I'm not questioning the merit of heat pumps. I should know because i have two in Ontario, Canada, one rated to -35 C and the other rated to - 25 C.

What i remain opposed to is this persistent idea that heat pumps work in all situations, for all people and for all time. They do not, and heat pumps create a unique set of problems that we might not be fully prepared for.