I'm building a vacuum kiln to dry wood and have some questions that may be rhetoric, since I am fairly certain I know the answers. I don't see a need to describe the project in great detail so I'll stick with the basics. The biggest challenge is applying heat to the wood. I believe I will have to use heat matts between each layer of wood because in a near perfect vacuum of 29.9 Hg a light bulb and fan will not work will it? I only ask because within the wood community some people have built a vacuum kiln and suggest that this works. But with no atmospheric pressure to speak of, how can heat from a bulb be conveyed within the chamber? The bulb will burn of course, and the heat has to go somewhere I suppose, so does it convect to be equally distributed within the chamber? And if it does, is the minute amount of air left in the chamber (I am at 600' MSL) enough to be a carrier of heat when a fan is running?