M > anything toxic about using the basic $4 flexible vinyl ducting you buy at
M > hardware store for moving air from a cooler room to a hotter room? i know
M > its only vinyl but I am wondering if they coat it with anything that would
M > make it only to exhaust to outdoors?
I hope not! We have some going to a room we added in the basement.
As I understand it the corrugated surface adds to the resistance to
the air flow but in our case installing sheet metal ductwork (round or
rectagular) would have been a royal pain (lots of corners, sneak
around the stair support., etc.)
You might want to try mounting some sort of a fan somewhere along the
line if you aren't getting the desire air exchange. It's generally
easier to pull cold air than push, especially going up.
(Ready for the post on Manual J and a balanced system? <g>)
¯ barry.martinşATşthesafebbs.zeppole.com ®
* Hot Date! Has found Waldo.
ş RoseReader 2.52á P003186
ş The Safe BBS ş Bettendorf, IA 563-359-1971
Click to see the full signature.