Question about Broan-NuTone Fan,Bathroom Exhaust Broan QTXE150

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Can I connect two bathroom fan ducts to a single roof vent?

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?

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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

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SRF518
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SOURCE: When we built our new 2-story home the contractor

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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3 Answers

I am fixing a closet in my home. It is part of an exterior wall and creates a lot of coldness in the house. How can I insulate this wall better? My kid is freezing at night she says. <a href


If you have enough room behind the stud wall install 1" rigid foam tape seams and then use the thickest possible roxsul insulation to fill the studs. Or axe the foam and install 6mil plastic on warm side of the wall after insulating tape all seams when done.

Jan 30, 2015 | Cam Spray Pressure Washer Foamer...

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How to vent exhaust outside


bea12bfe-3a65-4764-8544-5bc63391c2dc.jpg9dbdeaa6-0b81-4926-ab21-2206dc8f6420.jpg6bfcce66-f35e-4950-b5c4-5ba9eff2c34c.jpgI usually choose an outside wall if possible to vent outside. You can buy a rear vent that is superior to a dryer vent. When this isn't possible you need a rectangular duct going up through your cabinet and up through your ceiling. hopefully you have an attic or you have to switch to a 5 inch tube going sideways (above your cabinets (if there is space) to the outside wall. If it goes into an attic you have to cut through the shingles to a vent made for bathroom and or hood vents. The motor and blower assembly inside your microwave is designed to turn to be front facing, rear facing or vertical facing. Just unscrew or break out the side that you need to vent through.

Oct 21, 2013 | GE Spacemaker JVM1540 Microwave Oven

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The bathroom exhaust fan in our bungalow is leaking this past week every few days , we are not handy folks and so we are wondering what type of professional do we call in to deal with this leak and...


Sounds like the issue is simply condensation inside the exhaust pipe where it passes through the un-heated attic space. If you use the shower and the exhaust fan, lots of humid air is passing over the inside surface of a very cold duct, then running back down to your bathroom ceiling. You could get any non-specialist handyman to wrap insulation around that duct in the attic. But you can mitigate the problem by running the fan for a few minutes before you start the shower (thereby pre-heating the duct before you give it a blast of moist air) , and leaving it run for 20 minutes afterwards (thereby drying out the duct after use). Regarding the discolored ceiling, the handyman can apply some stain-covering white primer too.

Jan 14, 2011 | Fantech Fans Exhaust Fan In-Line

1 Answer

Drum will rotate but dryer will not heat up everytime


I think you have a clog in your exhaust duct. Cleaning it will require that you pull the machine from the closet. I thnk you will find a lot of sand at the bottom of your duct.

Feb 21, 2010 | Frigidaire FEQ332E Electric Dryer

2 Answers

One of our A/C vents is constantly dripping. We have not used the A/C in over 3 months and this is just started to happen. Why? We live in MA.


Hi,
The reason for the vent dripping is because you have warm high moisture content air going up into the cold vent.
This creates condensattion that fills the duct and then drips out the vent.
There could be quite a bit of water up there in the duct if there is a pocket for it ti lay in...

You need to get the vent closed off tight so that warm air cannot back into the vent while you are not using the A/C over the winter.

This probably has not happened but just in case... check that there are no holes in the ductwork that could be allowing cold air to enter the duct work and fall into the house. This will also create condensation at the vent.

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Dec 07, 2009 | Heating & Cooling

1 Answer

My Panasonic FV-11VQL2 seems to have the damper stuck in the closed position. The fan does not exhaust well, ever since we got a new roof (vent and 4" duct too). Any way to unstuck it without going into...


Hubby went into attic. The roofer did a poor job installing the new 4" duct and roof vent; duct was poorly attached and pinched at both ends. He redid both connections, and now the fan works well----no more foggy, drippy mirrors!
So, the fan is fine------the installation of the new roof vent and duct was shoddy.

Aug 24, 2009 | Panasonic Dryers

3 Answers

Drawing combustion air for a gas dryer


I am assuming that this is a gas dryer not an electric dryer.
Per the 2009 Uniform Mechanical Code Section 902.0
(B) Gas utilization appliances shall not be installed so its combustion, ventilation, and dilution air are obtained only from a bedroom or bathroom unless the bedroom or bathroom has the required volume in accordance with Section 701.2. [NFPA 54:10.1.2]
Section 701.2 basically says you need to provide adequate combustion air. One way is if the volume of the space is 50 cubic feet per 1000 btu. I personally think it is a bad idea to obtain combustion air from a bedroom even if it has adequate volume; it used to be prohibited by the Uniform Mechanical Code. The combustion air requirements are based on the BTUs of the appliance not the CFM. For gas pipe sizing purposes the Uniform Plumbing Code says that clothes dryers have a BTU input rating of approx. 35,000 BTUs. One 4" duct to the attic with the opening of the duct inside the closet within 12 inches of the ceiling would provide enough combustion air per the "One Permanent Opening Method" in UMC chapter 7.

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

Oct 07, 2008 | Dryers

3 Answers

Moisture on bathroom exhause vent


the fan is pulling too many cfm (cubic feet per minute).you can replace the switch of the fan with a potentiometer type switch (this works like a light dimmer)you can reduce the speed of the fan,or you can use a couple of synthetic fiber filters to trap the condensation.good luck

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