LPG and LNG also create more humidity, it's a result of the 'splitting' of oxygen in the combustion process, replacing it with CO2 and H2O, un-vented open flame heating is never a good thing

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics