Ha, in Germany it's called "Fernwärme", which corresponds nicely to "teleheating" (which Wikipedia lists as an alternative name). It's great, not only does electricity and water magically come from a wall in your basement, but also heat :-)
I thought they had abandoned the idea of using heat from a nuclear power plant for district heating in Russia, but apparently that is actually done [1, 2] extensively.
Having a pipe into your house directly (well, not directly, indirectly, but still) from the nuclear power plant next door... not sure how I'd feel about that.
District heating from nuclear used to be a no-no but has recently gained momentum in Finland (as an idea). Build an SMR near the city for electricity, and use the excess heat for district warming (which is needed during most of the year).
It really is a no-brainer when ~40% of the energy produced by a nuclear reactor is currently pumped out as warm water in the ocean (about 10-12ºC warmer than when it was pumped in).
It's a thing in the US. If you're ever walking around Manhattan and see steam coming out of a traffic cone, that's the side effect of district heating (groundwater hitting the very hot steam pipes and vaporizing).
