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1answer
162 views

Maximum length for bathroom extractor/exhaust fan vent

Our bathroom extractor fans are vented into the attic of our ~70yr old house in Philadelphia. According to our home energy auditor this is pretty common here. We want to vent these to the outside ...
1
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1answer
37 views

Water dripping from exhaust vent in basement

I have puddles of water on basement floor when we have no rain, but after we take showers in bathrooms. I do have cracked roofing tar around roof vent so some comes from outside moisture, but not ...
2
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1answer
308 views

Is a dryer vent tube being compressed like this up to code?

There's a 4" dryer pipe in my wall that is smashed slightly in order to get it to fit into the wall made with 2v4s. Is this OK?
2
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1answer
52 views

Can I terminate my dryer vent next to my gas meter?

Background I want to move my electric dryer. This involves moving the exhaust vent. This question is about where I can safely terminate the vent duct on the exterior of my home. I already understand ...
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5answers
4k views

How to fit 4" rigid aluminum duct vent in between walls when there is an angle brace?

I want to do what these people have done here: The problem is I have bracing going diagonally and it is not leaving enough space for the 4" aluminum duct vent. Can I saw the bracing off for the ...
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0answers
46 views

Gas furnace vent clearance from parallel PVC radon vent

I have a hallow wall on my main floor which carries my gas furnace vent up thru the attic and out the roof. This picture is from the basement looking up at the vent and as you can see, the radon ...
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0answers
15 views

Sidewall venting for natural gas appliance

My natural gas hot water tank still uses black (ABS) plastic vents. Due to a building code change, these need to be replaced with System 636 pipes. The current abs plastic pipes go to the roof. I ...
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2answers
296 views

Can I vent my dryer 'up'?

We recently moved our dryer into the garage stacked on top of a washer. The easiest way to vent it was straight up about 6' into the attic, then a right turn in the attic 12' out the back of the ...
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1answer
99 views

replaceing a toggle switch for EXHAUST fan for small bathroom with a rocker switch

I have a bathroom with two SEPARATELY TOGGLE switches;one for the light and one for the exhaust fan.I have updated the light switch with a dimmer/motion sensor rocker style switch. NOW my question is ...
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3answers
7k views

Two dryers connected to the same exhaust via a “Y”. Backdraft problems?

I have two dryers (one gas, one electric) and their exhaust pipes are merged with a "Y" to a common exterior exhaust. I'd like to keep it that way to minimize cuts through the wall (and eventually I ...
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0answers
87 views

Connecting dryer vent in new window

We just had some old windows replaced with glass block in the basement. The installers added a window with an attachment to vent the clothes dryer but, of course, it's different to the one in the old ...
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4answers
3k views

Exhaust fixture for venting bathroom fan through roof

I'm planning to install a roof vent for a bathroom exhaust fan I'm putting in. I'm thinking about using one of these: but I was wondering if I need to worry about it getting blocked by ice or snow? ...
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1answer
109 views

Can I route coaxial cable for tv through a gas fireplace?

Cable guy told me to drill a hole from outside in right through sheet metal in gas chimney to connect tv to cable mounted on mantle?
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5answers
10k views

Can I modify the vent from my high efficiency furnace to prevent possible damage to the exterior of my home?

is my high efficiency furnace vent installed properly? I'm based in Toronto, Canada. In some recent cold winter weather, the exhaust is causing a lot of ice buildup on the surrounding brick. To my ...
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4answers
22k views

How to make a 6 inch hole through a brick wall for venting

I'd like to vent my range hood out through an exterior brick wall. How would I go about making a 6 inch hole for the vent? I'd guess I'd use a masonry chisel to chip out the mortar and then pull ...
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0answers
62 views

What type of furnace vent pipe is this?

I need to extend my furnace vent pipe up 2 foot above the ridge of my roof to comply with IBC. So I need to couple this pipe somehow and extend it up. Any idea what type of pipe this is and how I ...
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3answers
4k views

Why is a gas furnace vented but a gas dryer is not?

I live in a house in Ohio and I have four appliances powered by natural gas: furnace, water heater, dryer, and kitchen range. Of these, only the furnace and water heater are vented to the outside of ...
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1answer
137 views

Condensation at roof, down outside of furnace/water heater vent. What is happening?

I am getting condensation dripping down the outside face of my furnace vent at the roof. I think I know why this is happening I'm just curious how to remedy it. There is a cast iron exhaust pipe that ...
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0answers
76 views

Do I need a damper on both ends of the ducts on my kitchen range hood/extractor?

My new kitchen range hood is compatible with both 3-1/4" x 10" rectangular ducting and 7" pipe ducting. It includes a damper for the 3-1/4" x 10" format, and an adapter plate for 7" - no damper was ...
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2answers
262 views

My dryer vent was setup to go thru the wall, up 2 stories, to my roof

My dryer vent was setup to go thru the wall, up 2 stories, to my roof..... I have a major problem with this type of setup, as every couple of months, my dryer starts taking forever to dry. When I open ...
0
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1answer
228 views

Fast trick to figure out to where bathroom fan vents out

Recently had a guy come out to clean the clothes dryer and clothes dryer vent. Asked him to clean out the bathroom fan vent as well. He looked up the attic, on the roof, and along the siding, and ...
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2answers
344 views

Should I install the exhaust hood outlet through the chimney or house wall?

What are the advantages and disadvantages of implementing an outlet of a kitchen exhaust hood through a chimney or directly through the outer wall of the house? There are unused chimneys in the house ...
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2answers
130 views

Home inspection requires exhaust to attic exterior

We have sold our 1995 built home. One item that needs to be addressed is "Bathroom fans vent to attic and need to exhaust to the exterior of the attic to prevent moisture condensation in attic." I ...
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0answers
31 views

soffit venting on cottage

I 'm installing a ridge vent on a 12X12 roof 16" on center..that wouldn't be a problem(little steep) The problem is where the rafters cross the plate there is no space to vent to soffits from loft ...
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0answers
225 views

Why is my bathroom vent fan tripping the GFCI when being shut off?

I have a GFCI tripping when a vent fan is being shut off. I saw in KeithS's answer to a similar question that the blades rotating after shut off causes an imbalance, tripping the GFCI. In my case the ...
0
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1answer
358 views

Can I add elbows to move a b-vent exhaust?

I am planning out a kitchen remodel, and would like to move the main exhaust vent for the water heater about 4-6 inches from where it currently passes through the kitchen area. The catch is that I ...
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3answers
185 views

Bathroom Venting

I live in Edmonton Alberta. My problem is the ensuite bathroom that we shower in all the time. The bathrooms have fans vented through the attic and have same vents as shown above. We can not use the ...
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2answers
8k views

Does the NEC allow electrical wiring to run next to a ventilation duct?

I am about to install a vent to the outside for the range hood exhaust in the kitchen. In the same bulkhead that will have this vent, there is some electrical wire (some 12/2 NM and some low voltage ...
10
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7answers
18k views

What is the best way to clean your clothes dryer exhaust?

My dryer exhaust goes out of my laundry room, into my attic, and runs for about 15 feet before it gets outside. Over time the lent has built up quite a bit. What is the best way to clean this? The ...
2
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1answer
319 views

Disable the timer on an exhaust ventilator

I have a bathroom exhaust ventilator installed that turns on when I flip the wall switch and that continues working on a timer when I cut the power in the switch. In terms of wiring, I see 3 cables ...
4
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2answers
238 views

Dryer exhaust from 2nd floor through crawl space, out roof

This is my setup, 1986 built town home. I just purchased a dryer and before connecting it, I decided to inspect the 4" tube going from the dryer, up behind the wall to the crawl space / attic and out ...
4
votes
2answers
11k views

How can I prevent the clanging of my extractor fan vent cover?

I installed this exterior vent for our oven extractor fan However, the metal plate in the vents keeps swinging open and closed when it gets windy and we can hear it in the house to the point where ...
4
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3answers
5k views

Is an exhaust fan over a gas range required?

Are we required to have one in a standard kitchen with a gas range in a residential home? The big question is not how many CFM or ducted or not, just whether there is a requirement in the building ...
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6answers
4k views

How should I vent bathroom exhaust fans in an old brick house with slate roof?

I recently moved into an old brick house (slate roof), containing several bathrooms without vents. It's a problem that I've been wanting to correct, though I've put it off because I'm not sure if ...
1
vote
1answer
139 views

Exhaust fan leaking from elbow joint connected to the ceiling

I have a metal elbow joint that is leaking. It is connected to an exhaust fan in the bathroom and runs to the roof. What can I wrap the elbow with to stop the leak?
2
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2answers
525 views

Can I blow dryer exhaust into a pillow case or sheet?

Go ahead and laugh. It's okay. Before you do, though, hear me out. My dryer has been drying less and less lately. Today, it stopped drying. Now I have a full load of wet laundry and it's all the ...
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0answers
969 views

How can I tell if my bathroom ceiling vent is working properly?

Seems to take the vent forever to clear shower vapor from room. I purchased a vent that had a good rating. It is vented to the outside. How do I know if it is working properly and actually venting to ...
2
votes
1answer
417 views

Covering roof vents to keep out roof rats

I have around 20 vents on my roof and I currently do not have a roof rat problem but I want to cover them with something to prevent roof rats getting into the attic. I'm sure I can find something at ...
3
votes
1answer
290 views

Why does the exhaust in my basement bathroom drip condensation in warm weather?

The exhaust in my basement bathroom drips condensation in warm weather, and the drop ceiling tile gets mildewed. I did not use insulated ducting to the outside. Should I wrap insulation around it ...
4
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1answer
325 views

What type of island hood do I need?

I have a 30 inch induction cooktop and a 15*20 inch electric grill on a peninsula. The peninsula separates the kitchen from the family room - no wall on that side. We use the grill a lot for chicken, ...
3
votes
1answer
1k views

How can I prevent water from entering through water heater/furnace exhaust vent?

I have an exhaust vent in my basement (Amerivent Type B) which takes the exhaust from my gas furnace and water heater goes out the basement wall, and up my chimney. A little bit water is coming in to ...
3
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2answers
4k views

In what year did venting bathroom exhaust out of the house become a code requirement?

what was the year for code for vented bathroom exhaust fan? What is the code for vented bathroom exhaust fan?
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0answers
49 views

How to build exhaust system?

I light candles frequently in room, and I wanted to prevent candle soot from sticking to the walls etc. How about I install an exhaust system in that room? What other options do I have? How powerful ...
3
votes
1answer
202 views

How do I calculate the proper fan size for a bathroom exhaust and the number of pickups?

Getting ready to remodel my bathroom and I'm thinking about installing an inline fan to reduce noise. I'm looking at Panasonic 120 and 240cfm models. Bathroom is 7' x 8' x 8'. With a shower in one ...
4
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2answers
5k views

Is it possible to vent two exhaust fans through a single wall penetration?

I have two bathroom exhaust fans that need to be vented out of the house, but I'd like to do it using a single wall penetration. Is there a code compliant, safe way to do this? Both bathrooms are ...
0
votes
1answer
329 views

Exhaust venting into air return?

In the condo (2 story semi-detached townhouse built in 2004) I rent, the main bathroom has an interesting vent system. When turned on, 2 fans are activated. One is a booster of some type and ...
2
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1answer
1k views

Is it code compliant to vent my bathroom exhaust through the turbine vent in our attic?

My contractor wants to vent our bathroom exhaust fan by connecting tubing to our attic turbine vent (aka whirly bird) to exhaust it to the outside instead of plumbing it to the outside through the ...
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1answer
370 views

Is continuous exhaust from basement level closet a good idea?

I have a recurring problem with mold in the closet of a basement level bedroom. After considering various options, I'm currently contemplating installing some sort of a low powered continuous exhaust ...
2
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1answer
172 views

alternative roof vents

Local building code requires a roof vent that is less than ten feet away from an operating skylight to extend a minimum of three feet above the skylight. Is there an alternative venting system, other ...
1
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1answer
650 views

Should I use inline bathroom fans?

I'm building a new full bathroom in my basement and I also have an existing full bathroom without an exhaust fan. The sizes are 207 ft3 and 470 ft3 respectively. I was initially thinking of buying ...