Here is a list of 11 kinds of wood that should not be burned in a fireplace. Some of these varieties shouldn’t be burned because they produce harmful toxins which are very dangerous for you to breath. Others are very flammable and can put your at risk for a chimney fire.
Wood Burning Pool Heater - Great for Suburban Pools: In this instructable I will go through the steps to build a simple and effective wood burning pool heater. I have used this to heat our pool especially in the spring and fall for several years and have been very happy with the results.