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Questions tagged [exhaust]

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Dryer exhaust pipe

M1502.4.1 Material and size. Exhaust ducts shall have a smooth interior finish and be constructed of metal having a minimum thickness of 0.0157 inches (0.3950 mm) (No. 28gage). (a) can I use metal ...
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Exhaust Fan Runs With No Power at All!

How can my furnace exhaust fan run with the power off, the thermostat off, and the breaker off?!
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Bathroom fan too loud

I recently installed a new bathroom fan in our master bath in hopes for a much quieter environment. I installed a NuTone Model # AERN110 (110 CFM, 1.0 sone). I've never had an ultra quiet exhaust ...
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Draft coming out of water heater vent intake

I have a power vented water heater. The PVC exhaust pipe runs up in to the ceiling then horizontally outside my house. This was installed by professionals, not DIY. The outlet at the back is ...
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What is this pipe?

I discovered a 12" diameter concrete pipe traveling vertically from the basement to the attic of a one story house. The pipe is lined both internally and externally with metal. I would like to know if ...
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How do I calculate fan size for a single room exhaust system to reach a desired cfm when restricted to specific duct size/route?

I am wanting to exhaust a sealed room (except for air intake and exhaust). The room is 512 ft3, and due to positioning, orientation, and existing construction, I am restricted to using 6" flexible ...
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1answer
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bathroom vent problems

I live in a townhouse(built in 1971 with no privacy wall between my neighbors attic) Between the two units there are 4 static vents and no other source of venting. The attic space would be about 400 ...
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2answers
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Move rangehood fan inline

I have one of these rangehoods, the fan is built in directly above the filters so its noisy as hell when you run it. I don't really want to spend $1K+ on a new "silent" rangehood, I was wondering if ...
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How do I determine if my chimney draft is correct?

I'm having issues with my boiler, and according to this answer, one of the problems might be that my chimney draft is incorrect. What steps are required to determine if my chimney draft is correct?
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2answers
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How long can I run a vent duct for a new bathroom exhaust on an old house that doesn't vent out properly?

all. I live in an old Edwardian home where the attic above is a finished loft space so I can't run any ducts upward. I have a second floor bathroom below that needs to be vented correctly. Right now ...
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1answer
681 views

Gas Furnace blowing hot air into room, flue is cold

We have a 2-year old gas furnace connected to water pipes and radiators throughout the house. It just turned on for the first time this year and is blowing a large amount of very hot air directly into ...
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Outdoor exhaust pipes from my heating system

What happens if snow covers my outdoor exhaust pipes from my heating system in the winter?
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1answer
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Direct stove/kitchen exhaust into kitchen sink drain

I live in an apartment that has terrible or zero ventilation for kitchen smells generated while cooking. The exhaust under the Microwave just removes oil from the fumes and circulates the air within ...
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carrier infinity 96 furnace extended exterior exhaust concerns

Due to severe wind and drifting snow that has blocked my furnace exhaust pipe I have extended the exterior intake and exhaust pipes approximately 8 ft up. The exhaust right angles out below my eaves ...
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Might I have 2 vents for my gas dryer?

I have a gas (propane) dryer. We just had a huge amount of snow 5ft. plus drifts around my house. This morning I turned on the dryer and started to smell propane. I went out and cleaned out the lint ...
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1answer
1k views

negative pressure/backdraft with boiler

Summary For heating in my house, I've got a Burnham Series 2 (model B) gas boiler, and with all the snow this past winter (I live in Boston) I've had problems with backdraft causing the boiler to ...
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Are my direct-vent water heater flues installed in a standard manner?

We recently moved into a property with 2 water heaters installed in the basement. During the inspection, we were told that the water heaters were relatively new, but the exhausts were "odd". ...
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How can I adjust a whole-house ventilation bathroom exhaust timer?

We have a home built in 2008 in west-central Minnesota. As a cost-saving (I perceive it as such, and may be mistaken) measure to fulfill air quality and venting code, the builder set up an upstairs ...