Remember the days of the huge storage heaters which contained bricks to hold the warmth? When I had those, I used to put bowls of dough on top to rise, which is did very successfully. Until the day that I left it a bit too long and some escaped down the back of the storage heater.
The first two or three days of having baking bread smells wafting through the house were great. Even the couple of days of toast cooking were ok but when we got to the week or so of burnt toast, it wasn;t so funny.