Almost all questions with the tag heating are about heating a space (e.g. your home), but in this question the tag is used for heating food, as in cooking.
What do you think? Should we use the heating tag only for space heating? In that case we should probably merge heating with space-heating.
Or do we use heating as one broad category for alls kinds of heating. In this case the tags space-heating, water-heating and cooking would remain as specific types of heating.
I suggest making space-heating a synonym of heating.
I find heating a more natural choice and don't think users will look for space-heating. (If they do, they'd be redirected to heating.)
Moreover, Wikipedia writes that
Space heating is generally employed to warm a small space, and is usually held in contrast with central heating, which warms many connected spaces at once. (emphasis mine)
I think that heating, encompassing both space heating and central heating, is the better tag.
(In the sustainability context, heating makes little sense for heating food, but a tag wiki should clarify this. For heating food, food and cooking should be more than enough.)
I find it odd to use the heating tag for cooking. We could make it a synonym of space-heating.
