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Old 12-08-2011, 08:09 PM   #1
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Exhaust on furnace


Hey Everyone,
I do not have a chimney in my home so my furnace exhaust is forced through a 3" metal vent through the wall of my basement. The vent exhausts fumes about 3 feet above outside grade near my deck. The exhaust fumes are not pleasant, can I connect 3" PVC and run it approximately 10-15 ft up the side of my house (ranch house) and exhaust it near my gutter/roof line? Will the blower on the furnace have a problem with that lift? Furnace is a weil-mclain from 2007.
Thanks!

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Old 12-08-2011, 08:18 PM   #2
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Exhaust on furnace


need pics.... this i boiler right...

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Old 12-08-2011, 08:59 PM   #3
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Exhaust on furnace


Sorry if it's dark, just took the picture outside. The furnace is natural gas, hot water baseboard system.



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Old 12-08-2011, 09:43 PM   #4
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Exhaust on furnace


Nope. Its not approved for PVC pipe to be used as its vent pipe. The PVC would become soft, or melt. It must be vented through stainless steel pipe like it is. there are length limitations to how long the vent can be.

And that vent pipe is not cheap.
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Old 12-09-2011, 07:28 AM   #5
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Exhaust on furnace


Thanks, that's what I was thinking with the PVC. I figured that pipe would be expensive. White PVC pipe would look a lot better than a metal pipe going up the side of my house
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Old 12-09-2011, 09:12 PM   #6
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Exhaust on furnace


Until it melted.

Thats the problem with some of the mid efficiency boilers, they need special vent pipe, and it has a "special" price on it.
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Old 12-09-2011, 09:35 PM   #7
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Exhaust on furnace


Could they even raise it with stainless vent pipe without going 3' above the roof? Supposed to be 10' clearance from a window right?
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Old 12-09-2011, 09:53 PM   #8
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Exhaust on furnace


Can be as close as 1 foot above window.

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