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that guy ty

07:42AM | 11/10/02
Member Since: 11/09/02
6 lifetime posts
Bvhvac


Hey there fellows...
I got a great deal on a direct vent (through the wall) small gas furnace(perfection swank). The best wall location however, is an interior wall. BUT... directly above where the vent will come through is the vent for a former full-sized furncace and the current water heater. It is now only the water heater. Is it possible to get an elbow and vent it up through that existing vent? The exhaust vent on the unit has a double vent pipe. One for the "exhaust" and one for combustion air. Can I just vent the single interior pipe and let it get the fresh air from the interior of the other side of the space? The room where the vent pipe will be is a sort of multi-use utility space. Storage, potting bench,seedling tray area, water heater, 1/2 bath. It is in the interior of the area and attached to the laundry room. How hot does that vent get? Hotter than the water heater? The other wall possibility is to move it down to the far end and vent it by going direct into that room again, but putting a right angle turn as soon as it goes through the interior wall to go through an exterior wall. Any other location would require a long gass line run.
Thaks so much,
Ty

ACD

08:17AM | 11/13/02
Member Since: 10/15/02
359 lifetime posts
Just finished a 90%+ furnace that uses PVC pipe for vent and exhaust. It had several options for venting, one of them was inside fresh air and outside venting, they also have a stack vent they you could use the combines the fresh air intake with the exhaust gas outlet and can be mounted through the roof. Check the installation manual, all those options should be in there. There is also a set limitaion on the number of elbows that can be used over a certain length of run, the less bends the better. If you are very close to the chimney chase then a total of 2 elbows would be all you need, which would fit in all configurations, but there is also a limitation on how long your vent can be, too long and it wont draft and the furnace will never light up.

that guy ty

06:26PM | 11/13/02
Member Since: 11/09/02
6 lifetime posts
thanks acd,
I have decided to spring for the gas line to get it to an exterior wall. It will give me more room in the laundry area as well. And I was concerned aobut the ammount of heat that it would create in that small space.
and the installation materials that came with this unit were much to be desired.
thanks for your response.
ty
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