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2
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1answer
344 views

How to remedy noisy air ducts?

I have forced air extraction with a duct running through one classroom then a second. The classroom which is ducted closer to the fan receives much greater air flow through its vents. To combat ...
0
votes
1answer
890 views

Can I adjust my blinds for both ventilation and privacy?

I like fresh air so I usually open the window a little and keep the blinds to the angle that I think nobody can see me from outside. Today I feel very upset because I found out everybody can see me ...
2
votes
1answer
69 views

Is it legal in a multi-unit building to draw air for ventilation from the attic? [closed]

I live (own) in a condo and the tenants above me are smokers and their cigarette smoke is encroaching in my living space. I contacted the landlord and HOA numerous times and nothing has been done to ...
5
votes
2answers
575 views

Can you have different types of vents on a single roof?

The attic of my house has serious ventilation issue and the sheathing becomes rotten. The roofing contractor suggests me to replace the rotten sheathing and install some ridge vent. His plan will ...
2
votes
1answer
2k views

Duct and fan requirements for stove hood

I have a commercial range, 36x24" on which I do things like stirfrying for 30 people using a 24" wok. Our hood which advertises 900CFM is performing poorly. It uses a 6" duct which has to run up 3' ...
0
votes
0answers
84 views

I have no furnace, only electric blowing heaters. How do I get ventilation?

I have a 100 years old building with a store on the main floor. Since the building was built over 100 years old there is no ducting whatsoever. There is also no furnace. In the summer we just hook ...
3
votes
2answers
376 views

Can a HVAC solve my ventilation problem?

I have a problem with my house such that with all my windows and doors closed the house smells and the air feels stale. I'm thinking of purchasing a high efficiency HVAC to vent the stale air out and ...
2
votes
1answer
1k views

How do I install a vent above a closet door?

I located some home theater gear in a closet directly behind our family room where the TV is located. Now the closet, a sizeable walk-in, is getting rather warm. How do I install a simple vent above ...
6
votes
1answer
3k views

Does it do any good to use fiberglass insulation if you're not going to drywall?

My attached garage is not insulated. When I look up, I see the roof sheathing. I was thinking of adding insulation to the garage. The problem is there is no attic space, so I shouldn't drywall it ...
1
vote
2answers
660 views

How do I properly ventilate my pantry?

I live in a very old appartment which has a food pantry in the kitchen. The pantry has a wall outside and on that wall is a hole. What do I have to put in that hole in order to match with the pantry ...
1
vote
1answer
316 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 ...
3
votes
1answer
197 views

How can I re-use a hole in wall for ventilation?

I'm renovating my bedroom and found that there's a hole in the wall beneath the wallpaper. It was plugged, but the stuff in it was old and crappy, so I took it out. Now I've got a 20x20cm (~7.9x7.9in) ...
2
votes
3answers
3k views

Should I install an exhaust fan in a new garage?

I'm having a new garage built in my home and I'm wondering if it's a good idea to have some sort of ventilation/exhaust/fan system installed while they're at it? I'm thinking of doing some spray ...
2
votes
1answer
753 views

How can I fix this moisture problem to stop mold growing?

Background and The Problem I am trying to solve the problem of mold growing on my bedroom ceiling. The house is a California Bulgalow built in about 1940. The house is single-brick with plaster ...
3
votes
1answer
441 views

With mechanical room ventilation is it necessary to have air supply in addition to extraction?

We are building three sound insulated classrooms which will be fairly well sealed. There will be no open windows so we're to use mechanical ventilation. I live in a warm country so heating isn't a ...
1
vote
2answers
9k views

How can I improve air flow in my basement?

I have a pretty odd two floor duplex apartment with one of the rooms practically being a basement. I have previously had problems with mold, and in general the air isn't great in the basement. So I ...
4
votes
3answers
765 views

Why does my dryer duct have such a long vertical portion?

My dryer duct follows this path: Flex duct leaving the dryer Four feet of vertical rigid steel duct down into crawlspace Eight feet of horizontal rigid steel duct, immediately below the floor Outlet ...
9
votes
3answers
3k views

How do I maintain air quality in a newly finished basement of a 1925 home with no ductwork?

I just bought a house built in 1925 but it has just been professionally renovated, including finishing the basement as living space. The home has a boiler for radiator and baseboard heat. There is no ...
3
votes
1answer
261 views

How should I attach laminate foil dryer transition duct?

I've got a laminate foil dryer duct coming up from the crawlspace. I need to attach my dryer transition duct to the exhaust duct, but these really don't like to go inside one another since they're ...
4
votes
1answer
693 views

How can I drill through rim joist/sheathing for a dryer vent?

I want to vent dryer through the rim joist of this home but it looks like this home has some sort of stone sheathing underneath the cedar shake. I can only see it from the basement. I can't really ...
2
votes
0answers
417 views

How to avoid water build-up in bathroom's passive ventilation shaft?

Our apartment building is 23 years old, and the bathroom has passive ventilation: basically there's a hole in the wall just under the ceiling, where warm moist air slowly escapes. It usually has a ...
2
votes
1answer
215 views

Is Kitchen cooktop venting required?

I'm replacing an electric cooktop with downdraft ventilation. Does building code require that I keep this ventilation, or can it be removed?
7
votes
1answer
2k views

How can I catch more lint in my dryer?

In the 3 story townhouse I'm currently in, the contractor originally built the (stackable) dryer vent to go straight up from it's location (top floor), then when it gets above the ceiling, it angles ...
1
vote
1answer
4k views

Should the flue always be open in a gas fireplace?

I have a victorian fireplace with a modern gas fire installed. The fire place has a hatch at the top to open/close the chimney, which the fitters have connected to a wire to force it to be fully open ...
8
votes
2answers
12k views

What are my options for venting a bathroom exhaust fan?

I would like to install a fan in our bathroom which currently has none. However, I'm very confused regarding the best approach for this. Above the bathroom is an attic space. I have read that ...
2
votes
1answer
635 views

How do I use an air speed meter to measure air flow volume?

I can buy a Vane Anemometer cheaply but a Air Flow meter (with a cone) costs a lot more. Can I just make my own cone? What issues should I expect if I add a cone to a Vane Anemometer? How do I ...
7
votes
2answers
923 views

How do I balance air outlet/inlet valves without an airflow meter?

As my local hire shops (UK) don’t stock airflow meters, I am trying to find another way to balance our newly installed MVHR (mechanical ventilation heat recovery) system. Firstly I need to set the ...
6
votes
2answers
4k views

Do I need soffit vents when I have 2 gable vents and 5 normal peak vents?

We are in southeast Idaho, have a plain simple gable roof on a 1,050 square foot floor house; the roof's pitch is not great, probably 3 or 4/12 but normal for our area. We have 1 vent at each gable ...
10
votes
4answers
3k views

Is this gas range ventilation setup dangerous?

I recently moved in to a new apartment that has a gas range and oven. I have never had a gas stove before, and so I am not sure how it should work. While cooking the other night, our Carbon Monoxide ...
4
votes
1answer
9k views

Is it better to vent a bathroom fan out the soffit, the side of the house, or the roof?

Working on a friend's house, we're installing a bathroom fan. He had planned to vent the fan out the closest soffit, which is only a few feet away. I'm trying to persuade him to vent it out the roof ...
7
votes
4answers
10k views

Is there a better solution than a lint trap for venting a clothes dryer indoors?

My condo association does not allow installing a dryer vent to outdoors, so I am forced to vent my dryer into a lint trap. Unfortunately the trap I have does not catch all the dust, and the rooms ...
2
votes
0answers
213 views

How do I remove mold and mildew from subfloor of a house with crawl space? [duplicate]

Possible Duplicate: Mold remediation in crawlspace House with crawl space has mold and mildew on the sub-floor. I've determined the cause is no vapor barrier and a leaky pipe and there is ...
7
votes
3answers
695 views

Would running a band saw or cnc machine in my basement be safe?

I'd like to get a band saw and drill press but I don't have room in my garage so I'd like to put it in my basement. The problem is I don't have any ventilation to remove sawdust so would having it in ...
4
votes
1answer
2k views

Attic ventilation - intake:exhaust ratio vs total ventilation area?

I have decided to go ahead and install a ridge vent in my house. The only current attic ventilation is soffit venting on one side of the house. As part of this project, I am attempting to determine ...
6
votes
4answers
632 views

Is there a recommended vent for new roof?

I am redoing my roof. I already decided to add sofit ventilation which I currently do not have. I have gable vents, and already decided to go with normal eyebrow vents Vs ridge ventilation. Question ...
2
votes
1answer
284 views

Forced air heating air inlet in crawl space

The air inlet for my electric forced air heating is a small vent on the duct in the crawl space. Although the crawl space is sealed with a concrete floor and heated (ie insulation is around the ...
2
votes
1answer
363 views

How do I deciding whether to install an attic venting system?

I live in Colorado, and the weather is starting to warm up. In a couple months, the temperatures will rise pretty high. Thankfully, I have a well insulated house (there is over 20 inches of fiberglass ...
3
votes
2answers
1k views

What is the process for draft proofing windows

I need to try to prevent drafts coming through and around my double glazed window units as much as possible. How can I go about detecting and sealing any leaks that are letting air through the window? ...
2
votes
0answers
522 views

What are good Relative Humidity and Temperature settings on an MHRV and are the settings related?

I need to configure the threshold Relative Humidity and Temperature settings on an whole house MHRV system. The way the system works is that if the RH threshold is exceeded the system increases the ...
2
votes
1answer
2k views

How to properly vent attic in windy/snowy areas to avoid snow infiltration?

To ask the other part of question: How bad is it to have wet insulation? that didn't get asked... How do you deal with homes that are in high wind and snowy areas which are susceptible to snow ...
6
votes
1answer
612 views

Venting the attic space during summer to cool the house

The air in my attic gets superheated during summer, from the sun baking the (clay? terracotta?) roof tiles (I live in Sydney, Australia). I have good ceiling insulation, and even put in some sarking ...
7
votes
3answers
2k views

Are new “low noise” whole house fans actually quieter?

I've dealt with a number of older whole house fans (10 years and older) and the one thing they all had in common was a ton of noise. Are the new "low noise" fans actually that much quieter than the ...
6
votes
3answers
4k views

What are the pros and cons of a vented vs unvented crawl space?

I find it very confusing to read and hear conflicting advice on crawl space: vent vs air seal, different ways to do insulation, vapor barriers vs not, etc. Mine currently has some moisture and has ...
3
votes
3answers
4k views

How do I air-seal a range hood flute?

My new kitchen included a new exterior flute for a new range hood. Few months later, I opened the cover for some maintanace reason and saw that the flexible flute is basically going through the ...
3
votes
4answers
2k views

Should I drill a large hole through a double paned window?

I have a laundry room in the basement. There is no exhaust vent for the dryer. Currently we just open the window when drying, but this is not the greatest solution. There is a window and it is ...
8
votes
3answers
1k views

Should a bathroom fan vent to a separate duct system?

Is it acceptable to route a bathroom exhaust fan to the return of a central air system? I'm afraid this will cause mold to grow in the air return ducts. There is currently a fan in our bathroom and ...
2
votes
3answers
232 views

What should I look for in a Whole House Fan

I see a lot of variance in the prices of whole house fans in the market, and not a lot of clarity or comparison between vendors and models. We're looking to buy some to install in our newly purchased ...
2
votes
1answer
630 views

Need to attach deck ledger to house covering a vent

I am building a deck attached to the house, and on one side I will need to have the ledger covering a section of wall that has a crawlspace vent cover. If I have a big enough gap between the ledger ...
4
votes
3answers
2k views

Can I vent a bathroom fan through the eaves?

I want to fit a fan in our bathroom. The easiest way to do this seems to be to drill down from the loft and put it in directly above the shower. I'm then considering running the vent (flex pipe) ...
4
votes
2answers
3k views

Why am I finding condensation in my dryer?

I live in Houston, TX (Very Hot, Very Humid). In the summertime, my dryer is dripping with water, when not in use. I do not have overly excessive drying times. My dryer is vented via an unfortunate ...