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Jay Barnett
02-18-2010, 05:09 PM
Home was built in 2007. Lennox High efficiency furnace installed. In the attic the intake & exhaust were "Y'd" into the same vent through the roof. Is this acceptable??? I thought they were to be totally separate.
Jay Barnett
02-18-2010, 05:25 PM
Here is the picture of the intake/exhaust
Billy Stephens
02-18-2010, 05:35 PM
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I thought they were to be totally separate.
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Correct. :eek:
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Jim Luttrall
02-18-2010, 05:51 PM
Not so fast, what did the roof top vent look like?
Anything like this?
Weil Mclain 383-500-350 - Weil Mclain - Concentric Vent Termination Kit For Weil McLain Ultra Boilers (http://www.pexsupply.com/Weil-McLain-383-500-350-Concentric-Vent-Termination-Kit-For-Weil-McLain-Ultra-Boilers)
file:///C:/DOCUME%7E1/User/LOCALS%7E1/Temp/moz-screenshot-2.png
Billy Stephens
02-18-2010, 06:35 PM
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]\Not so fast, what did the roof top vent look like?
Anything like this?
Weil Mclain 383-500-350 - Weil Mclain - Concentric Vent Termination Kit For Weil McLain Ultra Boilers (http://www.pexsupply.com/Weil-McLain-383-500-350-Concentric-Vent-Termination-Kit-For-Weil-McLain-Ultra-Boilers)
file:///C:/DOCUME%7E1/User/LOCALS%7E1/Temp/moz-screenshot-2.png
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I stand Corrected.:o
* page 32 figure 30. ( entire manual too large to upload, your model may vary.)
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Jay Barnett
02-18-2010, 07:17 PM
Thats it! attached is the actual top view of this intake/exhaust. But it was a Lennox high efficiency furnace? Never seen this intake/exhaust used before???
Billy Stephens
02-18-2010, 07:28 PM
Thats it! attached is the actual top view of this intake/exhaust. But it was a Lennox high efficiency furnace? Never seen this intake/exhaust used before???
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.....
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David Bell
02-19-2010, 06:49 AM
Concentric vent that all manufacturers can supply as an option to a 2 pipe discharge and intake.
ray jackson
03-11-2010, 09:49 AM
Yes that is a concentric vent termination, and is approved by all manufacturers I've ever dealt with. One thing to watch out for though is the vent has to enter the straight end of the termination with the intake at the 45 degree end. If the two lines are reversed the vent gasses can re-circulate into the furnace and cause failures.