If you’re asking in good faith… Most of lemmy.ml is a tankie echo chamber that silences or outright bans any dissenting discussion.

Try bringing up the facts surrounding Russia, China, Cuba, or North Korea…

Only lies and good vibes for tankies are permitted.

You’re right.

If they have a heat pump, it could be cheaper to use that over all.

*Edit: It’s electric resistive heat on a central air system.

If you’re in an area that doesn’t freeze you can keep the house cold and heat one room with an electric oil filled radiator very inexpensively.

If you’re in a place that freezes you need to keep the house warm enough to avoid freezing the water pipes.

Otherwise have fun, heat one room and bundle up everywhere else.

They said oil filled radiator, not oil burning. I expect it’s a very efficient electric heater like these:

https://www.homedepot.com/b/Heating-Venting-Cooling-Heaters-Space-Heaters-Electric-Heaters-Radiant-Heaters/N-5yc1vZc8od

If they are trying to keep one room warm and don’t care about freezing the rest of the house those are very efficient.