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Candle Powered Heater - I've been looking a various ways to make these and this guy has by far the best setup. It isn't so much a how-to video. He is just showing what he used to construct his version of the terra cotta pot candle heater.
DIY Emergency Paint Can Heater Tutorial with FREE Printable : paint cans + roll of toilet paper + rubbing alcohol + tile
DIY:: Flower Pot Heater ~ Gives a lot of heat, costs about nothing, easy to make and it looks pretty nice, too! Clay/Terracotta pots absorb the thermal energy of the candles and convert it into radiant space heat. Reaches temperatures of 160F to 180F. Heater stays hot for hours. use caution, the inner chamber can reach 500F. Heats a small area very effectively. uses 1 to 3 candles or more. How To @: www.youtube.com/...
DIY Flower Pot Heater- Power go out unexpectedly in your area? Here's a very simple, dirt cheap homemade heater made out of Flower pots and tealights that you can put together in under 5 minutes flat- and here's the kicker, It Actually WORKS. (Click on photo for directions)