use outside air for combustion for gas dryer? why not install in airtight closet,with fresh air intake vent?
In the winter, up north where I live, that would not be a good idea since the air I would need for combustion and to dry the clothes would be extremely cold and would slow up the drying process and require the dryer to run longer. Dryers use a lot of air for both drying the clothes and for the combustion of the nat gas. Also I like the fact that running the dryer will exchange some of the homes air helping to keep the home's atmosphere fresh. Some seemingly good ideas are probably just too good for me. There would probably be no cost savings after this investment.