cbottger
(Charley L. Bottger)
1
If your I Q is above 2 you would not do this;-)
dwigger
(David Wigger, CMI, Retired)
2
Keeping the gas warm improves combustion, right;).
kshepard
(Kenton Shepard, CMI)
3
Is that a combustion vent?
cbottger
(Charley L. Bottger)
5
No it was a supply air vent the duct was in the crawl space