Questions tagged [vent]

For questions generally relating to the exhaust ventilation of air from inside the home, and/or methods to promote proper airflow thorough various spaces in a structure.

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32 views

A celling vent does not stay in place

I have a vent in the ceiling that no longer stays in place. I think it is drilled into dry wall but the drywall is too corroded to keep the vent in place. Any suggestions on how to fix this? Do I just ...
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Ventless vs nonventless

We are remodeling a bathroom. Currently it has an exhaust fan vented through the attic. We purchased a Broan roomside series surface shield. (No attic access required with ezduct connector, no attic ...
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How would you cover this vent?

I'm moving into a new home and one of biggest pet peeves I have is this vent in the living room. Any ideas for how to cover it? Do they have invisible frames that I could use instead? Any ideas/...
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Serious corrosion of vent connector duct in gas hot water system

I have a combined radiant heating system/domestic hot water system. This unit is a middle efficiency unit rated at 87% The boiler is connected to a B-vent chimney with single wall vent connector. ...
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1answer
47 views

Purpose of septic vents both in the yard and also through the roof?

My house has both septic venting that goes up through the roof and also a vent in the yard. The roof vent is standard, with all the fixtures passing through traps and then draining down eventually ...
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43 views

How can I remove a mouse stuck in the air duct above a kitchen exhaust fan with built-in microwave?

Last night I heard noises in the cabinet above the microwave. There was nothing there but I heard squeaking and movement from the lower part of the metal air duct in the center of the cabinet. I am ...
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1answer
56 views

Why does this wall in my basement have so many vents?

I have a wall at the foot of my stairs that has 3 vents in about 5 ft of wall. One of them ducts straight to the HVAC system, the other two just open into the unfinished storage/utility (furnace, ...
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57 views

Side effects of wire mesh inside vent covers

I am considering tacking wire mesh (such as from a window screen) onto the inside of my indoor furnace/AC duct vents as well as the outdoor intake vents, for pest control. I know doing it inside the ...
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1answer
365 views

Dryer vent: proximity to electrical wires

We recently moved into a new home, and the ductwork for the (as yet uninstalled) LG DLE3500W electric dryer is the flexible foil type. To avoid an additional bend in the duct, it runs across some ...
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1answer
81 views

Basement bath: Can I tie a wet bar sink into bathroom vanity drain?

I've seen similar questions asked, but there seem to be enough variables that I'd like to ask here to be sure. See attached photos. I have a basement bath roughed in, it is wet vented. The vanity is ...
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37 views

Fixing a bathroom vent exhaust going only into attic

First, the facts: We live in Western Oregon (lots of moisture) Home was built in 1979 Bathroom exhaust fans are vented into attic I like to do things once and do it right I am planning on venting the ...
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1answer
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Bathroom Remodel Drain/Vent Configuration

All, thank you in advance for the help. I am remodeling a bathroom and fall under IPC 2018 and was hoping that folks could look over the design below and let me know if this was code compliant and if ...
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1answer
80 views

Cheater vent from Behind Toilet

I would like to place a cheater vent (aav) behind the toilet. I just want to make sure this arrangement will work properly. Most of the vented toilet arrangements I see show the vent being downstream ...
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Plumbing island with low basement headroom

What is the difference between whats being done in this picture and taking the vent pipe and attaching where marked in red. Seems vent is only slightly raised.
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Old-style ceiling vent in DC rowhouse, top-floor bathroom

I'm looking to recreate the original mechanism for opening and closing the ceiling "window-frame" vent in the topfloor bathroom of my 1938 Wash DC rowhouse. Problem is, I have no friggin' idea what ...
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Example Registers for 2“ x 12” Duct

I am new to DIY Stack Exchange as well as home renovations in general so I will do my best to be concise and provide adequate clarity for my question, without sounding overtly inexperienced. I had a ...
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3answers
588 views

How to child-proof a floor vent?

Our upstairs playroom has a floor vent leading to the furnace that children like to throw toys down. Is there any kind of vent cover that can be substituted that is less likely to result in this ...
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Stove Vent Hood Not Pulling Air

My stove vent is not pulling enough air but the exhaust on the outside of my house is flowing really good. The metal grease filters have been replaced (in fact with the grease filters removed it still ...
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1answer
42 views

Is it worth adding a 2nd roof vent to an unfinished detached garage?

If a "2.5" car (24x24ft) garage has one roof vent near the top, is there any use in adding an extra roof rent? The garage is unfinished/uninsulated, and there is no obstruction of air between the roof ...
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51 views

Is there a recommended size for vents in boiler cupboard doors?

I have replaced doors in my house and would like to replace a plain boiler cupboard door — standard 1981mm x 762mm (6½ft by 2½ft) door — with a 6-panel door matching the ...
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1answer
94 views

Can I run a plumbing vent through a wall instead of the roof?

I'm working on a tiny cabin bathroom. I would not like to run a vent pipe and cut an opening in the roof. Are there any other options on the placement of vent for waste?
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87 views

Are these bathroom vents?

I was looking at a house and the bathrooms appear to have no exhaust fans. It does have these little things that look like they might be vents of some sort. Could they be sufficient for ventilation to ...
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128 views

Moving or closing cold air return

Here is my current situation: There used to be a wall running between two rooms here; with a heat vent on the top side room and what looks like two cold air returns on the other. The issue is, with ...
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1answer
60 views

Range hood impeller slipping on rotor shaft

My range hood has a motor with an impeller on it. The impeller is attached to the rotor shaft by a nut that threads onto the impeller's... bushing I guess it's called, which is slotted, so that as the ...
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1answer
63 views

Does a 100 year old home need attic ventilation added if no problems have occurred?

We purchased a 1920 brick home 2 years ago and are pricing a new roof and the roofing contractors want to put in ridge vents and soffit ventilation systems. We currently have two large awning style ...
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1answer
246 views

Can I vent plumbing in an old house to the crawl space? [duplicate]

I have an old farmhouse with a bathroom vanity, laundry room, and kitchen sink/dishwasher draining into a single septic run. There aren’t any vents installed in the system with only a crawl space ...
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1answer
443 views

Venting Range Hood into Attic Space, Temporarily

My ductless recirculating range hood broke, and I have to install the replacement. I love to cook, so I'm installing a roof vent for a ducted hood. The range hood I bought has good filtering for ...
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260 views

Is there a rule about minimum rise of a vent pipe before it can run horizontal?

I am replacing my shower/bath, including removing the wall that houses the vent pipe (the new unit is free-standing). To make the repiping easier, I want to redirect the tub vent pipe to merge with ...
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1answer
49 views

Structural damage because of air vent

I need to make an air vent for a tumble dryer hose on an external structural wall. Is there any chance to compromise the wall structure because of the hole for the vent? Should I add a structure ...
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bathroom vent not working correctly

Had some mildew on the ceiling so I thought some thing was wrong with the exhaust sucking the moisture from the shower. So I vacuumed everything and removed the flapper and cleaned that as well.So I ...
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1answer
520 views

Why is there a 1/2-inch hole drilled in my heater exhaust?

I have a Carrier high efficiency furnace which uses 2-inch PVC pipes to pull in combustion air from outside and exhaust the combustion gasses back outside (through a concentric vent, but that's not ...
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1answer
78 views

How to terminate cooker hood ducting

I have a probably stupid question about assembling ventilation pipe for a cooker hood. I want to vent my cooker hood through the eaves rather than go through the roof as I suspect it's cheaper, less ...
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1answer
65 views

Can I remove this HVAC damper?

Is is possible to remove this damper? It looks like there are special kind of screws about an inch above but I'm not sure how those would come out. If I can't be remove could it be cut out? I have an ...
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215 views

Bathroom exhust fan ducting - size, length & CFM

Still trying to solve my problem of bathroom vent fans that aren't vented anywhere... Was considering running out the gable, but that's 25' away, plus another 10-15' of duct and a couple of elbows to ...
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472 views

Cutting stud in load bearing wall to create vent opening for cooktop hood

We are installing a wall mounted cooktop hood over a gas cooktop as part of our renos. We have centered the cooktop along the kitchen wall but unfortunately that places the center line right in ...
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87 views

Bathroom Vent - exhausts into attic insulation - what to do today?

So my wife called my attention the fact that the kids bathroom has some grunge on the ceiling and tends to have lots of water drops when in use. First issue - at some point the vent motor was ...
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Is it proper to install a ceiling vent for HVAC if it blows on the windows in the “open” position, but not in the “closed” position?

I understand that HVAC vents should be aimed at the windows (ceiling and floor vents) to maintain the target ambient temperature and avoid extremes in a room. In the case of a residence in a humid ...
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110 views

How does one properly seal a celling vent of a forced air hvac system?

In a room that may have had some kind of condensation on the past, how should one go about sealing the area around the vent hole in the ceiling, specifically to reduce the likelihood of returning ...
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65 views

Temporarily close 5" hole in plexiglass

I have a portable AC unit venting through a 5" hole in a plexiglass window. I replaced the glass window with a plexiglass one to do this since the windows that open are casement-style. The AC unit is ...
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87 views

Frame a jack stud without bottom plate?

I need to frame a small header in my kitchen exterior wall for a range hood exhaust because the 8" hole is dead center on a stud (of course). It's a 2 story 1941 house with 2x4s 16 on center. The ...
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35 views

Help me find a replacement vent

Have a wood burning fireplace and the chimney has an air intake vent. The vent has seen better days but not sure what to ask for at the local stores. See photo [ update ] After getting up in the ...
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1answer
658 views

Installing PEX pipes close to heating vents

We are renovating all the bathrooms in our house that was built in the early 70s. The plumber has replaced most of the copper pipes with PEX tubing. He has not replaced copper entirely and has ...
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1answer
190 views

Position of dryer vent relative to gas meter and furnace intake

As part of renovations to our house (built in the early 70s) we are reconfiguring the laundry room and moving appliances to the opposite wall. The laundry appliances will now be to the left of the ...
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205 views

Periscope dryer vent in exterior wall

Our exterior wall has 2x4 framing and we wanted to see if we can run a periscope vent for the dryer in the exterior wall before venting out. We are trying to save some space in the laundry area so ...
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83 views

Why does my bath fan duct have dried grass in it?

So I was exploring my bathroom fan setup with the intention of sending a new wire through the wall to put the fan and light on separate switches. In the process, I noticed that there’s a white plastic ...
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272 views

Does my mechanical room need ventilation to the exterior?

Sorry for the confusing post. I don’t have a manual as the prior owner didn’t have it. If I understand correctly, a boiler room in a residential home requires a vent for fresh air. This boiler room ...
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264 views

Adding a return vent to a hot office

I have an office with a significant amount of computer equipment in it that generates quite a bit of heat and is regularly 3-12 degrees warmer than the rest of the house when I'm working in there with ...
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Does an 8“ round to 10x3.25” elbow exist?

I have open space above cabinets and wife does not want a chimney on our range hood. SO I am looking for an elbow that will take the 8" round vertical exhaust and go 90 degrees into a 10x3.25" (we ...
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100 views

Crawlspace encapsulation

This past weekend I recently had to fix the flooring of my family cottage. In a heavy-traffic side entryway, the plyboard floor was bending when you walked over it. We opened up the floor to see ...
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Removing cap from box/turtle style roof vent

I have a vent on a shed roof: that has a huge wasp nest inside (though no wasps (at the moment), thankfully!). I can see it from the inside of the shed (not pictured). I thought it would be easy to ...

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