Not as efficient as the heating tower, but still objectively better than any other power source in space except fusion. People can simply choose to not use it but I am curious about if this was a conscious choice, after all, there is no oxygen in space and you seem to be interested in realism
As I recall, the heating tower works on spaceships too, right? I think that's probably why I let it slide. I don't have nearly the same amount of time to work on mods that I used to so I haven't given it the same depth of thought.
No, burner entities like the heating tower don't work in space at all, due to oxygen and balance. Still, this is not a complaint, players can choose wether to use it or not and you as a free mod maker are not obligated to work on it