Question about Broan-NuTone Fan,Bathroom Exhaust Broan QTXE150
I have a bathroom vent. I just installed another similar vent in my closet and when I was in the attic I noticed the ducts from both are quite close next to each other. Both of them use 4" ducts and I'd rather not cut another hole in the roof. I know 100% that the new vent has a flap to prevent air back flow. I have not checked the bathroom vent but it's only couple of years old and I assume it has the same. I was wondering if it is possible to connect both ducts to the same vent in the roof, perhaps by using some y-connector. Are there any cons or pros? Is it in compliance with whatever codes that govern ventilation?
No, both cannot be connected to same vent.
Or vent exhause from 1 fan will vent into other bathroom.
All house vents require separate duct.
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Posted on Nov 27, 2014
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Posted on Jan 02, 2017
get a weighted damper and install over the existing vent. the weight will open when the exhaust fan is running and stay shut via the weighted arm.
Posted on Oct 23, 2009
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Make up air is a different requirement than combustion air. Chapter 5 of the UMC states that if you have a dryer in a closet you need to provide a make-up air opening of 100 sq inches. The make -up air is to replace the air that is being exhausted not to provide air for combustion. The make -up air could be taken form the exterior of the building or another room within the building. Technically the closet should be insulated and weatherstripped if you get the make-up air and combustion air form the exterior.
Sorry doc john but the fire inspector is not talking about the exhaust duct (environmental air duct). That is required no matter where you have installed the dryer and is a totally separate
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