I fell this implies they're still wearing a suit, Dogs seem like they do okay with their coats. But think of how much fur would get all over everything. How would you cook?
Alternatively, is your fursona sufficiently well-designed to avoid instant biological problems? Most foxes are missing their internal organs for example. As for fur, people with pets can attest that your cooking is going to have fur in it and that's just the way it's going to be.
Ive seen one with build in liquid cooling (basically thin pipes through the thing and a backpack with a cooling system, idk how it works exactly, but it seemed to work)
yeah came to ask why if he was magically merged with the suit (which if its what he wished for it would not be that but actually being what the suit represents) why would he have heat stroke?