Sure nukes aren't generally used for heating, but in places like Russia and more frequently China, district heating directly from nuclear is very much on the table. And electric heating isn't exactly far-fetched of a proposal either. If we ramped up carbon-free electricity sources like nuclear, hydro, and intermittent renewables we could couple that with more electric heating pretty reasonably.

Damn, you're right that it's US only. Ok [1], page 11. Still only through 2016 though. IRs are the fastest growing but they're still very tiny. We have a lot of work to do to decarbonize.

https://www.bp.com/content/dam/bp/en/corporate/pdf/energy-ec...