Ignoramus12853 wrote:
I would like to find/make etc a space heater, I would say 200 watts,
that would be completely fire safe (say, I could surround it with
paper and it still would not start a fire). How would I accomplish
this?

Oil heaters. Not the ones that burn oil,
the electric ones that look like the old
steam radiators. They have oil sealed inside
and a heating element in the bottom.

Or 2 100 watt light bulbs in a metal box.