exhaust vent pipe
#1
Member
Thread Starter
Join Date: Mar 2008
Posts: 2
Upvotes: 0
Received 0 Upvotes
on
0 Posts
exhaust vent pipe
i have a coleman mobile home furnace it has two pipes for exhaust why does it need both
#2
One of the pipes brings in fresh air that is needed for proper combustion (fuel+air are needed for a good/healthy flame)
the other pipe carries the byproducts of combustion to the outdoors (the hot combustion gases)
the other pipe carries the byproducts of combustion to the outdoors (the hot combustion gases)
#4
The only right answer to that question lies on the unit's installation manual. The manufacturer determines what is appropriate and safe for a particular unit.
The installation manual should be by the unit. Take a peek at it.
Having said all of the above, and without the following comment being an endorsement, heating furnaces/boilers what have two vent pipes are typically 90+% in efficiency and the temperature of their combustion gases is quite low. Double-wall pipe is typically not required. As a matter of fact, the manufacturer may even recommend plastic pipe and direct vent to the outdoors (not the chimney).
Again, your manual will tell.
The installation manual should be by the unit. Take a peek at it.
Having said all of the above, and without the following comment being an endorsement, heating furnaces/boilers what have two vent pipes are typically 90+% in efficiency and the temperature of their combustion gases is quite low. Double-wall pipe is typically not required. As a matter of fact, the manufacturer may even recommend plastic pipe and direct vent to the outdoors (not the chimney).
Again, your manual will tell.