A DEHUMIDIFER is about the only thing you can do. When you burn Natural Gas or LP gas it produces Moisture. Everything that burns produces water weather is is NG or LP Gas. The other byproducts of combustion are carbon dixoide and heat. the simple hydrocarbon gasses such as methane, ethane,propane, and butane and Natural Gas, burn without producing smoke, IF oyxgen is in short supply, combustion will also product carbon monoxied and soot. Soot is Pure carbon that did not burn because there was insufficient oxygen. I was strongly thing about purchasing a CO Detector. Carbon Monoxide Poisioning hits you without warning. No Smell, No Taste. Like getting the flu. You start off getting a headache.
Marc E., February 2006