I hope this is helpful in the future. You can make a small room heater with a narrow metal pan (bread pan type), 4 tea lights, and a small clay pot, and a larger clay pot.
Light the tea lights and set them in the center of the pan on a heat proof surface.
Place small pot over the top upside down, and place the larger pot over the small one, also upside down.
This will create a convection type heater. I saw it on Facebook, but I have the supplies now so if our power fails, I am ready. I did try it, and it does work for small areas. The heater works about as long as the tea lights last (about 4 hours). I want to try it again, so I can see if I can heat a small pan of water on it at the same time. NEVER LEAVE IT UNATTENDED!