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Questions tagged [venting]

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Should I keep a gable vent along with soffit and ridge venting?

When we moved into our house it had a large gable vent at one end of the attic, and a turbine vent on the top of the roof. We had a new roof installed and they recommended to use soffit vents and a ...
Lori's user avatar
  • 11
0 votes
0 answers
23 views

Can I extend a shower drain with dedicated vent further than 8 feet to the main stack?

The tub currently has a 1 1/4” drain about 6 feet long to the main stack that will be replaced with a 2 inch pipe. There is a dedicated vent just downstream of the P-trap that has a horizontal run ...
Billyboy 's user avatar
0 votes
0 answers
33 views

Dryer vent and bath vent combined [duplicate]

A neighbor is working to control moisture in his crawl space. He has a bath vent going to the crawl space. His repair is to connect the bath vent pipe to his dryer vent. The logic is that he would not ...
Patricia's user avatar
0 votes
0 answers
6 views

Vokera Boiler Emptying Pressure Automatically Emptying When Turned Off

So I've bought a new home, and it's a got a Vokera Easy Heat Plus boiler. It works great, and heats up the home cheaply and efficiently. When the boiler is on, the central heating holds water pressure ...
Owl's user avatar
  • 115
1 vote
0 answers
47 views

Can I use an AAV instead of a vent pipe for a remote sink?

Our General Contractor added a "temporary" sink in our lower level during our kitchen remodel on the main level. It is the perfect location for a kitchenette downstairs, which has 2 ...
tdfi2003's user avatar
0 votes
1 answer
48 views

Venting for basement bathroom stubbed out by builder

Code Context: Colorado. City jurisdiction has adopted the 2018 International Plumbing Code My house was built in 2015 and stubbed out for a full bath in the basement. I am now finishing the basement ...
crichavin's user avatar
  • 243
1 vote
1 answer
38 views

Ok to Have Soffit Vents Next to HVAC Registers?

I have a one-story wood frame home with a fully insulated attic, with 4 large vents at the ridge line and numerous perimeter soffit vents, each consisting of 4 large screened holes drilled in the ...
Rob C.'s user avatar
  • 11
9 votes
2 answers
2k views

What kind of drain pipe appears to be clay?

The photo below shows a venting stack that was disconnected. The stack runs from the basement to the attic and out through the roof. Which means it's perfect to pull new water, gas, and vent lines ...
MFMauceri's user avatar
0 votes
0 answers
44 views

Plumbing Vent(s) for master Bath

I am currently adding new DWV plumbing for an existing master bathroom space. The space already has a WC and shower with proper drainage and venting. The new addition consists of a soaker tub between ...
user2674256's user avatar
0 votes
1 answer
56 views

Is it ok that my wall air vent does not seal to duct?

I went to my attic today and saw that all of the bathroom exhaust fan duct pipes are put loosely to the hole on the inside of the vent. Does this look right? I’m afraid this would blow air to the ...
VuDuong's user avatar
3 votes
0 answers
79 views

How can I resolve this plumbing venting issue?

Twice in the last 5 years ALL of my drains have stopped draining at once. Plunging, snaking, etc do nothing. Water bubbles with the pressure of a plunger then painfully slowly drains. I'm 99% sure ...
mike's user avatar
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0 votes
1 answer
86 views

Can I terminate my sewer vent pipe in the attic? [duplicate]

Can a vent pipe stop in an attic crawl space as long as there is adequate ventilation in the attic?
Dave Hendershot's user avatar
0 votes
1 answer
30 views

Flatroof DYI vent in a maximum

My flat roof has just been redone by professionals. Before, I had a lot of mold in my attic (more of a crawl space), so we added a second maximum (now I have 2 of https://ventilation-maximum.com/en/...
william audet's user avatar
0 votes
0 answers
61 views

Do I need soffit vents if I have an attic fan?

We are in the process of replacing our roof. Our roofs aren’t long enough for Soffit vents and we have loose insulation in the attic. Our roofer is installing a ridge vent at the top but no intake ...
John's user avatar
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1 vote
1 answer
75 views

sewer smell on cabin toilet

Hello I have an off grid cabin with one bathroom and the toilet room smells of sewer pretty bad at times, esp with rain and colder weather. I looked under the crawl space for venting and there is a ...
Matt Brown's user avatar
0 votes
1 answer
71 views

Bathroom plumbing -Is it right?

My 1940 bathroom plumbing was just replaced and I am questioning whether the set-up is proper. Here is a picture. Long 2” pipe at bottom is for the bathtub/shower, fixture at top left is the toilet ...
Stella's user avatar
  • 21
0 votes
0 answers
120 views

Looking for advice for external vent of OTR microwave

Our over-the-range microwave is currently configured for recirculating ventilation, which is less than ideal for many reasons (one of which being that it's over a gas range..). We discovered that ...
Dan's user avatar
  • 101
0 votes
2 answers
90 views

Guidance on proper ventilation for tools in a small indoor workshop

I am currently looking to set up an extra bedroom for an indoor workshop with the following: 3D printer, FDM and resin Laser engraver/cutter Airbrush booth CNC router I have an enclosure for the 3D ...
agarza's user avatar
  • 101
1 vote
1 answer
65 views

Can I use this old sink vent for new basement bathroom?

I am building a 3 piece bathroom + laundry in this old basement laundry room. The cast iron sink pictured drains to the floor and that vertical 1 1/4" copper pipe is a wet vent, I believe, as it ...
Carey Boo's user avatar
0 votes
0 answers
19 views

Dripping dryer vent clean/dry help

The issue is every summer when we are running AC when it is 85 degrees outside, the dryer vent pipe starts to drip in 1-3 spots. I have an 18.5 ft dryer vent that goes from my first floor down a foot ...
Eric's user avatar
  • 1
1 vote
2 answers
318 views

How to frame gable ends above top plate?

10'x16' insulated off grid "cabin" build. I want to use gable vents for my ventilation because it seems way simpler than a ride beam and soffit vents. I have a post centered on each 10" ...
Foopysfarm 's user avatar
0 votes
2 answers
188 views

Venting dryer into bathroom

My laundry has no roofspace access but shares an internal wall with the bathroom. The bathroom has a separate extractor fan on a different wall. Is it a reasonable idea to vent the dryer into the ...
nullPainter's user avatar
0 votes
1 answer
47 views

New Basement Bathroom Drain Issue

First off, I live in Virginia, I know plumbing code varies state by state. I am roughing in a bathroom in my basement. I was planning to use a shower drain as my sink drain that is already in my ...
user168635's user avatar
0 votes
1 answer
197 views

Hot water heater vent goes through bedroom making it hot

Our home was built in the 1950’s. The hot water heater is located in the basement and is directly beneath a bedroom. The hot water heater vent runs through that bedroom closet making that bedroom hot ...
Heidi's user avatar
  • 1
0 votes
0 answers
52 views

Newly purchased range hood is supposed to be for 10" ducting, but the transition mount that came with the hood is only 9.5 inches. What should I do?

I recently purchased a range hood that is supposed to work with 10" ducts, but when I measured the transition mount that came with the hood (pictured below), it's actually only 9.5" in ...
Alex's user avatar
  • 143
3 votes
1 answer
613 views

Issues with portable A/C exhaust into ventilation system?

I live in the UK (where air conditioning units, and thought for where they'd go, is very uncommon in homes), and where the temperature in summer is increasing every year. I also live in an apartment ...
JP.'s user avatar
  • 145
1 vote
2 answers
376 views

Is there a benefit to venting a shower in an otherwise unvented house?

I recently purchased a home built 40 years ago. It was owner built, who was not a contractor. The home 1800 sq ft top level and 1300 sq ft finished basement. There are no sewer vents. Toilets have ...
ordiver1's user avatar
2 votes
0 answers
57 views

NSPC bathroom venting Diagram Correct?

I will start a description from the top of the page. The label there says vent and it goes up to the roof (2 stories). Right beside it is a 3" stack that is carrying the waste from a full ...
Mrordinary's user avatar
1 vote
0 answers
267 views

Can I connect my dryer to the wall duct without a connector?

Is it possible to attach my dryer's exhaust port directly to the vent duct without a connector? Obviously I'll need to secure the 2 together, but I'm trying to have my dryer as tight as possible to ...
dgduhon's user avatar
  • 49
4 votes
1 answer
303 views

Where can I place a direct vent termination location for water heater?

Location: U.S. I'm trying to figure out all of the clearance distances requirements and looking for the best place to vent a new direct vent water heater. As you can see by the image, the existing ...
SlowSL's user avatar
  • 151
5 votes
2 answers
14k views

How do I vent the plumbing for my basement bathroom?

I'm trying to determine how to best vent plumbing for basement bathroom I am putting in. The nearest main stack is around the corner and kind of a mess with connections. I'm not sure I'd be able to ...
Kevinicus's user avatar
0 votes
0 answers
52 views

OK to leave open combustion air pipe in crawlspace sucking air from crawlspace? I like in Alaska and we have had a lot of snow blocking outside vent

We recently had an unusual snowstorm that completely covered the open combustion air pipe that is vented at almost ground level to the outside. This caused the HVAC to shut down. We are worried ...
OneAlaskan's user avatar
2 votes
1 answer
1k views

Can I use PVC pipe to extend a bathroom exhaust duct outside the wall?

I have a new bathroom in my basement which is completely below grade. The duct for the bath vent was routed out through the joist space to the exterior wall and a vent wall cap added. The bottom of ...
PLynn's user avatar
  • 21
2 votes
1 answer
155 views

Can a laundry sink drain be moved downstream of an existing vent? [closed]

Context: I am located in California and doing an addition and moving the kitchen. The kitchen sink and dishwasher drain into an existing line in the garage that has a laundry sink and a clothes washer....
Max's user avatar
  • 641
3 votes
2 answers
603 views

What to do with roof vent if needing to drywall over it?

Heavy DIYer but first time dealing with roof. This is my final trade to learn, so go easy on me. Denver, CO. I am vaulting the ceiling of what was dead space over the kitchen before. The dead space ...
Jimbo's user avatar
  • 109
1 vote
2 answers
2k views

New bathroom exhaust to soffit/eave? [duplicate]

I'm installing vent fans in both bathrooms on 2nd story of my two story house. Open attic access. Instead of venting to the roof or through the gable which requires risky ladder work, Wanted to vent ...
Chris's user avatar
  • 665
2 votes
4 answers
2k views

Discovered my bathroom exhaust fan has no ventilation, what do I do?

Asking for help or advice on how I should run the new ducting for the existing bathroom exhaust fan. Whether I should run the ducting to the soffit, siding or roof? I would also ask for "Pros&...
Dustin's user avatar
  • 21
1 vote
1 answer
1k views

How do I connect these two pieces of dryer duct in my attic?

I am about to install a Dryer by mounting it on the wall in an inverted fashion, and then venting it through an existing dryer vent setup that has been designed with a duct joint that goes into the ...
Chris T's user avatar
  • 19
0 votes
2 answers
70 views

Help Identifying Vent Purpose

I'm trying to figure out what a vent on my roof is for. I have two vents close together. #2 in the photo is for the venting of the hot water heater. #1 is the one I'm not sure about. It has an ...
Erich Peterson's user avatar
0 votes
0 answers
43 views

Is a vented gas fire pit in a covered deck a bad idea?

We are building a home and desire to have a covered deck with a gas fire pit. Some websites say no problem, but when speaking with a dealer of gas fire pits, they were opposed to the idea because the ...
JeffB6688's user avatar
  • 101
0 votes
0 answers
123 views

Need way to Vent Heat out of Vaulted Ceiling in top floor Condo in Colorado

I live in a top floor condo with a vaulted ceiling. The high vertical wall of the vaulted ceiling backs onto an attic area accessed from outside the condo. There are NO vents and 2 poorly working ...
BLR's user avatar
  • 9
1 vote
0 answers
102 views

Noisy kitchen vent fan

My kitchen vent is a 6" duct that curves to the side, goes to the outside wall, where a fan is mounted, pulling the air outside. Due to the curve (and the fan, I think), when I turn on the fan, ...
Justin's user avatar
  • 195
2 votes
1 answer
11k views

How do I check bathroom plumbing vent?

I have an addition where the toilet clogs every few weeks. You can hear it coming a few flushes before the back up with a LOT of gurgling in the pipes. I "fix it" by running the shower, and ...
Will Sargisson's user avatar
1 vote
0 answers
87 views

What does section 904.4 of the international plumbing code mean?

I'm trying to figure out where I'm supposed to install my main drain vent stack. I assumed it would be just above the toilet, but I'm confused by section 904.4 of the international plumbing code, ...
Jonathan Narwold's user avatar
0 votes
1 answer
139 views

What is the best way to vent the plumbing for a 1 sink/1 toilet bathroom in the basement?

I am currently finishing my basement, and we plan on putting in a small bathroom. When it comes to venting, I wasn't sure if I needed to run a pipe from the basement, up through the 1st floor wall, ...
Mrbungledisco's user avatar
3 votes
1 answer
1k views

Will Air Admittance Valves help me? If so, where to place them?

This is my first question so apologies if its not the highest quality. will do better over time. My primary question is: based on the current plumbing layout, what problems am I likely to experience, ...
McNabbHome's user avatar
1 vote
1 answer
767 views

Toilet intermittently won’t flush - strange seasonal venting issue maybe?

Backstory: last winter we had an issue where Toilet #2 of our 2 toilets (the one furthest from septic tank) would intermittently not flush. The tank would drain completely and refill properly, the ...
Benjamin Hodge's user avatar
0 votes
2 answers
249 views

what kind of outdoor vent (for furnace) is this?

This is a vent for a home-heating furnace (blown-air, gas-heated). There was some kind of plastic meshing on the outside. It's broken. Now I have to go very high up and fix this somehow. A scary ...
thanks_in_advance's user avatar
1 vote
1 answer
996 views

My dryer isn't fully exhausting to the outside?

I recently bought a townhouse which has laundry in the finished basement. I noticed that our clothes took a bit more than an hour to dry in the dryer, so I wondered if there were any lint blockages. I ...
Errjm's user avatar
  • 11
1 vote
2 answers
485 views

Should old openings in a plywood roof deck be closed before installing steel?

My metal roofer removed all 14 old vents and installed two new "Maximum ventilators" in its place. The remaining 12 holes are still there and not sealed and i can see the underside of the ...
Sugish r singam's user avatar