Candle Power

This may not solve all your heating needs when the temps get down to the teens, but it's the cheapest low tech device we've seen to take the bite off this cold snap. From greenbuilding elements.com comes The Kandle Heeter Candle Holder

The aecret is the the terracotta pot topping the candle with a multi-core radiator, where the inner steel core can be driven to very high temperatures — 500-550 degrees Fahrenheit — by the burning candle flame and becomes a central radiating body. ityields an efficient 50BTUs an hour for an total of 1000 BTUs to cut the chill,
The ceramic — a high ‘thermal lag’ material — absorbs the heat rising from the candle, as it is dense and heavy with tile, concrete, water, thus, storing heat well. The pots actually concentrate the heat, and can focus on to where you need it to heat up. A 3-inch diameter by 3-inch dollar candle can get you about two days of heating, which amounts to 0.50/day! And if the winter days turn out to be wet, cold, it would cost you about $50 for a whole heating season.
Now, you can purchase this little energy saving candle-transformed radiator and considerably cut on to your heating bills. Giving the ambiance of a miniature “fireplace”, it will keep the cold out and coziness in. Normal fire precautions apply although a light bulb can be substistuted if the flame makes you nervous.