Original message
| Confused
 |  "Furnace vented to front of the house"
, posted Wed 16 Apr 11:22  
Looking for advice. I had two high efficiency furnaces installed yesterday. The installer vented them to the front of the house just above the fresh air vents in my basement. Seemed to make sense to me at the time he mentioned it. He said he couldn't vent the systems to the flue because it would rot it out.
Now I have four pipes sticking out of the front of my house and the noise and steam is really ridiculous. Sounds like a blow drier. Please advise. Thanks -- daniel.baitch@jpmchase.com
Thank You!
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Replies:
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| dwcaveney
|  "Re(1):Furnace vented to front of the house"
, posted Wed 16 Apr 16:40:
Sure it does'nt sound like a 747? Mine does, but it's in the back.
What type of existing flue/chimney do you have?
You can't vent it up a galvanize iron flue because NOx and CO concentrations will corrode flue.
Masonry needs lining also because condensate will become contaminated, not provide minimum back flow volume, will ruin V/M, glog drain hoses and fittings.
Depending on size of existing vent(old), might be able to be lined or replaced with ABS pipe.(if you live in Canada only 626 pipe is acceptable)
Why didn't he vent it out back or side?. Problem regarding rise?
Is there enough rise to go to back or side of house? (1/4 inch to the foot)
The condensate from that type of furnace must drain back toward the ventor motor, then out the condensate drain.
The FAVs in the basement sound like a problem as well, especially if you're not pulling combustion air from the out side. A furnace is capable of burning from 6.66 to 20 times, more air than NG.
Did you get a permit, have it inspected?
DW
[this message was edited by dwcaveney on Thu 17 Apr 23:30] |
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