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.