LOL Agreed John to so many of your points.
A gas oven has a burner of 12,000 to about 18,000 BTU/h. Stove-top burners run in approximately the same range of heat outputs. A gas dryer (full-sized) typically has a 22,000 BTU/h burner. If both run for the same amount of time a dryer is probably slightly worse than an oven in terms of pollutants such as carbon-dioxide, carbon-monoxide, sulfuric -oxides and nitrous-oxides just based on the heat output alone!
And even the combustion process itself of natural gas (methane, CH4) generates water vapor which may lead to mold and mildew, without even drying clothes!
CH4 + (2)O2 => Co2 + (2) H20
I am a huge opponent of UNVENTED gas appliances (including stoves) which are the No. 1 source of indoor air pollution. Sad that such pollution is so easily avoidable, yet exists. Vent your stove, open a window or don't cook with gas! a gas oven at 350*f (175*C) running for even just ONE hour produces and releases into the home harmful levels of pollutants
Studies in the UK has shown that children that grew up with gas cooking have TWICE the allergies and asthma, and respiratory ailments (for life) that those who grew up with electric cooking do.
And to all my friends who say, "but my granny had unvented gas heaters for 50 years and survived just fine" to that I say "Yes, but there are healthier options!"
And yes candles, unless they are bee's-wax or soya are petroleum-based paraffin which is nasty! Any light one sees is CARBON from incomplete combustion which coats ever surface in the room and house. NASTY! So while candles are comforting and like having company with you, THINK about it! Electrons can be broken down into photons which is a big fancy word for LIGHT waves/particles. In theory we are all made of LIGHT and candles/flames/ (controlled) fires are a huge comfort to us. But I digress, don't I ? LOL
Always great to see you posting, John! [this post was last edited: 10/22/2010-14:18]