Questions tagged [ventilation]
Use this tag for any situation where fresh air needs to be infiltrated such as while painting or varnishing, drying carpets, etc., to prevent buildup of unsafe gasses including Radon.
455
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Insulating/AC efficiency improvements
We moved into this house late last year. It is a 1992 cape style brick house.
In short, our upstairs is miserable sitting in the mid 80s with the upstairs unit running from 11am-10pm.
After doing some ...
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1
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Venting a portable air conditioner to bathroom vent duct in an apartment
I am wondering whether it is ok to vent the hot air from a portable air conditioner to the same duct where the bathroom air vent is in an apartment considering that the apartment block removes the ...
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Bathroom Ventilation Leaking
My ceiling leaks when it rains and it’s right where my bathrooms venting system is. My bathroom vents through a piping system in the attic and then out through the roof. The pipe that sticks of the ...
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Remove and seal up old air vents
I recently bought an apartment and have now realised that there are 4 old air vents in the flat that let cold air and noise in. The flat is right outside a restaurant and a pub and it gets super noisy ...
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3
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Alternate heat recovery systems upstairs and downstairs
I'm looking to increase the ventilation in my house by a little bit to compensate for measures we're using to reduce unintentional ventilation (blocking draughts). I don't need and can't afford a ...
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Why is my attic hotter after venting was updated?
I had my roof replaced last year and I am now seeing consistent temperatures in the attic that exceed 40 degrees over the outside temperature. For example, it was 62°F the other day and I had 108.5°F ...
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1
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Air circulation with soffit vents but no ridge vents
Ranch 1959 home. Soffit vents present but no ridgevents. 75% of ground floor airsealed in attic. Home in GA.
I plan on re-roofing the first chance I get which may not be until next year. I'm not sure ...
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What is the best way to cool a vaulted ceiling in a marine tropical environment?
A house I am working on has vaulted ceilings with no insulation or ventilation, so the rooms get very very hot during mid-day to afternoon, especially in the summer. The house has a white standing ...
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2
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Will exhaust fans effectively remove moisture from my crawl space? [duplicate]
This is a highly debated / discussed topic, but pretty much all of it based on parts of the country with relatively very high humidity.
I live in San Diego, where humidity is moderate most of the year ...
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1
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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 ...
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1
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What door is recommended when I want to noise dampen my furnace room?
Our basement is being renovated. Aside from the furnace room, it will have a mother-in-law suite, a common area, a bathroom, and another bedroom. Our bedrooms, which are next to the furnace room, are ...
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Question about air sealing soffit/eave area for bugs and temperature
I have a 2006 house, which is not a great vintage, but generally very solid. In the rumpus room above my garage, there are two knee-wall closets. Despite having ample fiberglass insulation, these ...
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2
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Likely cause for leaking ventilation fan
My roof has two DX11VSR ventilation fans that were installed about a year ago.
I have had repeated issues where rainwater gets into the ventilation ducts attached to these fans and then leaks through ...
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I have a gooseneck vent on my roof connected to nothing. Im told the purpose of the gooseneck is for attic exhaust ventilation. Is that correct?
Condominium development. ALL or most a/C units cannot keep 1220 square ft cool. I believe it is due to the only exhaust vent for attic is the current gooseneck vent that is sitting on the roof. Going ...
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1
answer
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How to prevent pests from entering an air inlet?
The mesh grate on the vent hood at my local big box store is only useful for keeping out birds and the like. I'm tempted to wrap the whole thing in window screen but that would likely reduce air flow ...
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Positive Input Ventilation (PIV) suitability for loft with high relative humidity
I live in the UK in a cold 1890s stone walled house which has a condensation issue (partly brought on by lifestyle choice and party due to previous "remedial" works that limit the natural ...
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Move/replace loud range hood fan with fan on exterior of home
I have a natural gas range and a range hood with a fan that I find to be too loud even on the lowest setting.
The wall that the range hood is mounted to is an exterior wall, and I can see an exhaust ...
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How can I mount a vent louver to a partially obstructed round duct?
I need to install a wall vent in my kitchen. The problem is that the hole is not round! Do I cut a plastic vent or what type of wall vent do I install? Thanks for any tips!
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Is ridge vent wrongly installed or damaged?
We recently had a roofing company do a subpar job installing a new roof. I noticed that the ridge vent isn't completely flush with the shingles (plastic wavy from left to right).
Question :
Is this ...
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Should I put a Turbine Vent in a Quonset Hut [closed]
I have a Q-Style Quonset Hut in eastern Canada where it gets quite cold in the winter time.
We have that white batton style insulation pinned to the walls but I know the building isn't ventilated ...
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2
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What are these vents?
Hi I have some vents I'm wondering about their functions/significance.
There are these outdoor vents, that I see called 'dryer vents' online. But I have only one of these connected to the dryer. ...
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Can I use a chimney exhaust fan as a whole house fan? [closed]
I would like to install a whole-house fan in my house but want to avoid putting an unsightly fan in my living room (the only place it could reasonably be installed). I have a traditional brick ...
2
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0
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Better to reverse the intake/exhaust on my HRV? [closed]
I bought a house with an HRV (Heat Recovery Ventilation). The air intake for it is in a closed compartment under a staircase outside the house, so any air going in first has to go through small gaps ...
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1
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Is a fully vented exhaust fan required for bathrooms in Virginia?
Lurking for years so thanks for all the great info!
In our master bathroom there is a small water closet that just has the toilet (about 6' x 3'). The WC and the tub area both have exhaust fans that ...
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4
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Are there (portable) AC units that also ventillate? [closed]
If I understand correctly, (portable) AC units like this one take inside air, cool it and push it back inside, and similarly take outside air, warm it and push it back outside.
Afaik, This means that ...
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0
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How do I fix the tempertature differences between 3 floors in my house?
In my ~5000 square foot house, the finished basement is very cold, A/C set point stays spot on the main/ground level at 76F, but both upper loft areas 80-84 on hot days!
It is a full height 2 story ...
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0
answers
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HVAC and water heater help
I need help deciding what to do in my home. We have a small closet upstairs that contains our furnace and water heater. The air conditioner currently installed is not working and has been turned off ...
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2
answers
274
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What are these covered ceiling vents in Arizona residence?
What is the purpose of these 1-foot-square vents in the ceiling, which have a loose thin sheet of some white board on top of them?
These are in most rooms in a 50-year-old single-story residence in ...
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2
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504
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Noisy ventilation when cold outside
Odd question from one that understands nothing about airflow, but has been obsessing over an issue for a while.
I live in a cold area, and when it's around F -4 (or C -20) or colder outside the noise ...
2
votes
0
answers
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Crawl Space Encapsulation: How to deal with the "Chamber of Secrets?"
I have a south Louisiana home built in the 1950's with a vented crawl space. In the 70's, a den was added with a slab on grade foundation. In this addition, the back porch was converted into a ...
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3
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Gas burner periodically stopping with blocked vent error
We are working with our installer on this issue but would like more input. He suspects negative air pressure in the house
This is a gas burner installed in a room with all inside walls - center of a ...
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1
answer
368
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Minimum floor fan CFM to push air from basement to cool down the main floor
Temperature in the basement of my home is consistently 6-7 degrees lower than in the main floor. I would like to circulate cold air from the basement to the main floor to cool it down during hot days ...
4
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1
answer
463
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Do I have the balance the ventilation to make the most of the stack effect?
I live in a typical 1960s UK home, built of brick with two floors. My home has big windows (especially facing south) and has a really large solar gain causing it to be very warm in the summer.
I'm ...
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0
answers
174
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Bathroom - inline fan on gently sloped ceiling above shower
I need to replace the current extractor fan in the bathroom of a ground floor flat and an inline fan was recommended as the most powerful (there is no windows in the bathroom and it's tiny so moisture ...
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0
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Any problem with cutting a hole through one section of attic to another attic? for ventilation
I have an attic that has no vent and another attic (I assume) that has a vent on the outside of the house, a "gable vent" I think is the correct term.
I want the hot air to get out of attic #...
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1
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Do old vents need to be removed if ridge vent is installed?
With a new ridge vent installed, I am wondering if these old vents need to be removed? They're plastic covers over a square hole cut in to the attic plywood.
Just curious if it will interfere with ...
2
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1
answer
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Do I need a new roof to install ridge vents?
I wanted to have a ridge vent installed across the top of my roof to improve ventilation.
Roof is about 40ft long with a ridge board in the middle and 5/12 pitch.
Roofer came out saying he can't ...
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1
answer
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Using gable vent inside roof ventilation system
I have three powered roof vents and all three went bad within two months of each other. Wanted to replace the motor from attic side but, just about impossible to take fan blades off without bending ...
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2
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What To Cover Hole With
I had a room remodeled and added a sink, the pipe that connects to the sewage line for drainage runs straight up into the wall and my drywall guy said to call a plumber to get them to add the ...
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1
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Sealing air gaps around edges of attic gable fan
I just installed a new gable fan to exhaust hot air from my attic. Due to unevenness in my studs and gravity pulling one side of the fan lower than the other, there are small gaps (ranging between 1/8&...
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3
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Insulating a wooden shed to provide strong heat rejection
I'm getting a large new shed built in my garden and I'd like to insulate it to make it a bit more comfortable to work in.
The shed comes with stud framework on the walls, so my plan is to use OSB to ...
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1
answer
342
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Moisture in bay window bench seat
I live in a 1940s house with uninsulated double brick wythe exterior walls. The interior wythe has some kind of masonry skim coat. The front wall of the house has a bay window. Last spring, I built a ...
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2
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CFM Required to Ventilate Room to Maintain Temperature
I am designing a computer room inside my home. The room walls are inside the house. This question excludes floor, wall, and ceiling losses/gains.
I am looking for the formula to calculate the CFM ...
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Do I have a moisture problem with my soffit?
Looking underneath my gutter, I noticed that the soffit is a bit discolored looking. Looks kind of like mildew or moisture marks. Does this just need some tender-loving-care or do I have a more ...
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Range hood with worrisome ventilation set up in Hong Kong
I just took a new apartment in Hong Kong where I didn't notice the way the stove ventilation was set up. The landlord used a discount department store contractor who installed the Siemens range hood ...
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1
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DIY power connection to ventilation unit
I bought a ventilation unit that came with a bit more DYI required than anticipated since I'm a complete noob when it comes to electrical stuff.
I have a picture of the unit itself, the power ...
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1
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Is there a minimum distance between two exhaust vents going out an exterior wall? (NJ state)
Is there a minimum distance between two exhaust vents going out an exterior wall?
I'm in the state of New Jersey and I was unable to find anything related to minimum distance between two exhaust vents ...
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1
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Best position for kitchen exhaust duct flow sensor
*TL;DR: a flow sensor on a kitchen exhaust duct fails to work reliably in its current location. Will moving it down two floors closer to the upstream exhaust hoods help or be a waste of effort?
We ...
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0
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Downstairs WC cold - Extractor or windows?
I have a new build and of course there will be a few niggles here and there, however one of the biggest gripes is that the downstairs WC (toilet) feels chilly when compared with the hallway just the ...
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3
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Extractor fan or dehumidifier?
My home has a consistent high relative humidity (70-90%, depending on whether I am hanging clothes to dry as I don't have a dryer) during winter. Thankfully, it seems that enough ventilation is ...