jkemp@alaska.net writes: >Last winter I installed a Toyo stove (a free standing, >#1 oil burner) for the cold winters, which puts out a lot of heat. I >believe this is causing the problem but heat is pretty important up >here >in Alaska! Are there any products/solutions anyone knows of that >could >help me out? I live on a plastic boat in Canada. Our winters are also very cold and the lake freezes for many months. However I don't have any condensation problems. Don't know what a "freestanding Toyo stove" looks like, but if it is not vented (a chimney to the outside) then that's your problem. When you burn #1 oil, combustion products are carbon dioxide and water vapour (lots of it). You got to vent those to the outside. Get a stove that has a chimney! George in Lake Ontario