Sources of carbon monoxide, according to the U.S. Environmental Protection Agency, include: Unvented kerosene ｫ gas space heaters, Leaking chimneys and furnaces, Back-drafting from furn ces, Gas water heaters, Wood toves and Fireplaces, Gas stoves, Generators and other gasoline powered equipment, Automobile exhaust from attached garages, Tobacco smoke.
Sources of carbon monoxide, according to the U.S. Environmental Protection Agency, include: Unvented kerosene and gas space heaters, Leaking chimneys and furnaces, Back-drafting from furnaces, Gas water heaters, Wood stoves and Fireplaces, Gas stoves, Generators and other gasoline powered equipment, Automobile exhaust from attached garages, Tobacco smoke.