Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
0answers
52 views

Open cell spray foam off gassing 2 years later. How to fix?

My home was built in 2017 and has Accella open cell spray foam in the unvented attic. In spring & summer 2018 we noticed a mild chemical smell coming from the attic on hot and/or humid days. It ...
0
votes
1answer
39 views

range hood confusion

I am making some changes in a somewhat older kitchen. Part of this is replacing the stove with a 30" dual fuel (LP) range but keeping the existing 300 CFM fan. I was all set to buy a professional ...
0
votes
2answers
26 views

What type of exhaust ventilation is best for attic?

We want to add exhaust ventilation to our attic (hip-style composition roof). Which type is most effective, passive or power?
0
votes
0answers
21 views

Can a bathroom fan go out a ridge vent, and how functional is this temporary fix?

I'm in a 1 story craftsman house and have a bathroom vent that had no ductwork, just pouring wet air into the attic. The vent also didn't work well to begin with so we never used it and thankfully ...
0
votes
2answers
45 views

Can I leave an unused conductor when running wire for an extractor fan?

Whilst wiring a new extractor fan, I’ve ran out of twin and earth but I have some left over three core and earth from the lighting (1mm^2). The fan doesn't have an over-run and only requires 2+e. It ...
1
vote
1answer
36 views

DIY cold room ventilation

I live in Southwestern Ontario (seasonal temps of around -5°c in the winter, around 30°c in the summer) and I would like to build a cold room in my basement. The basement is unfinished with poured ...
0
votes
0answers
15 views

Adding Collar Ties as Chase in 1930 Tudor

I'm planning out how to insulate and finish my attic without compromising ventilation. I'm zone 7, with a large, entirely floored attic. Roof is hard slate, original to 1930-built home. No current ...
5
votes
4answers
131 views

Letting fresh air through a window without letting noise in

I live in an apartment and it's pretty noisy outside, so I usually keep my windows closed. It does get pretty stuffy inside though, so I'm wondering if there's a way to get air through the window ...
1
vote
1answer
83 views

Putting a microwave in an island?

We are remodeling our kitchen, and we are going to put the microwave inside of our new island, Below the counter top, Built-in with the cabinets. Our old microwave is an "over the range" microwave ...
1
vote
2answers
55 views

Should I be concerned about ventilation in a small room?

I have a 10'x10' room in my garage that I use as a drum set practice room. I've been sealing it up better to provide some sound proofing. The sealing is not extreme, but I have an exterior door (like ...
1
vote
1answer
41 views

What is this tiny ventilation mechanism in my window frame and how do I replace it?

I live in a building with wooden double-glazed window frames and have this tiny "ventilation" outlet installed into one of the larger windows in our apartment (see below). What is its purpose, and ...
1
vote
2answers
72 views

Should I keep attic gable windows open for ventilation?

Our attic only has a ridge vent (no soffits). It also has two windows on either end. It was recommended that we keep them open to help ventilate the attic. Is this a good recommendation? Should we ...
1
vote
1answer
37 views

Wall grille that fits one step stair

Between my dining room and living room upstair area, there is one step down and there is a wall grille that is 5.5" tall. What drives me nut is there is no 14x5.5 grille anywhere. There is either ...
2
votes
2answers
50 views

Curtains for a non-air-conditioned apartment in the tropics

We live in Mumbai - West coast of India, tropics. Summers are from March to July with temperatures reaching early 40 degree Celsius and a lot of humidity. It rains from July to September with ...
0
votes
3answers
69 views

ventilating mildew-prone walk-in shower

I have a walk-in shower, roughly 2-1/2 x 5 ft, 7ft high, with a shower-curtained opening. The mildew problem on the grout is pretty bad. I've seen some good articles here on controlling mildew, but ...
1
vote
2answers
61 views

Can I ventilate attic space using wall vents?

As an alternative to use a timber trussed tiled roof vent that involves removing tiles, can I instead replace two or more bricks, some on each end of my house, with wall vents like this? Presumably ...
1
vote
2answers
230 views

Is the ventilation in my utility closet a construction mistake?

With colder weather here in Northern Colorado (down to 22° F) my Goodman 90% efficiency furnace (GKS90453BX) came on for the first time in the (ca. 2005) home that I recently moved into. The furnace ...
0
votes
1answer
136 views

Do we need a gable vent, and in either case, how to vent bathroom fan outside (can it be via the gable)?

We need to put a hole from our attic to the outside, one way or the other. Before making any holes, I hope to hash out the details. Here's the goals: Make sure attic is properly vented Direct ...
1
vote
2answers
46 views

Is a gravity or spring damper sufficient for a make up air vent?

I am planning on installing a make up air vent in my cold air return. I don't want to install an electric system that I have to wire to 3-4 different appliances. Is a gravity or spring loaded damper ...
0
votes
1answer
45 views

Will a make up air vent cause an issue in the winter?

I recently installed a gas range and I will soon be installing a 300cfm range hood. Since I primarily burn wood in the winter for heat and I don't want any back-drafting issues, I am planning on ...
1
vote
1answer
85 views

Do I need a bathroom fan to increase house ventilation?

I had an energy audit done recently and one of the recommendations was to air seal and reinsulate the attic which was expected. What I did not expect was the recommendation to install a bathroom fan ...
2
votes
1answer
74 views

Modern half-bath copper DWV configuration

First off: I KNOW PVC is fine. I KNOW PVC is cheap. I KNOW PVC is fast. I KNOW PVC is more flexible. I KNOW PVC would still be working [sarcasm] 300 years after I'm dead. Now that I've sufficiently ...
1
vote
1answer
81 views

Downstairs exhaust fan venting into upstairs?

I recently purchased a bi-level home with two full baths. The inspection didn't include ductwork, but it seems to me that the downstairs bathroom is somehow venting into the rest of the house. There ...
0
votes
1answer
44 views

6" Ducting straight to in-wall rectangular ducting

I have a vent for the microwave-range that goes from an interior kitchen wall to the outside of the house. I need to re-locate this, but I can't move the exterior vent fixture. It currently comes in ...
0
votes
0answers
23 views

required space below whole house fan vent

I am installing a whole house fan in an old bungalow. There are no hallways in our house and there is really just one place that makes sense to install the fan inlet. That location in central and ...
0
votes
1answer
202 views

Garage gable fan proper installation

I want to add a gable fan in my garage to help cool it and help to let out the humidity in the winter. My garage doesn't have a high peak, so there is about 24" of height at the peak on the gable and ...
0
votes
1answer
39 views

Can I use the built in vacuum system fir ventilation

I have an old house which has been updated but it doesn't have great ventilation in the finished basement and often smells a bit musty and damp There are no leaks and the drainage system has ...
1
vote
2answers
160 views

Is there any benefit to using vented aluminum soffit over solid wood soffit?

I'm wanting to cover over my home's old solid wood fascia and soffit probably with aluminum fascia and vinyl soffit. There's an option to have either vented or unvented soffit. Since my current ...
0
votes
1answer
71 views

Correct air vent for a gap found in wall

I am renovating a room in my house and I have come across the hole pictured. It used to be covered by a light wooden box that allowed the air to flow upwards. I was not to keen on it and have taken it ...
0
votes
2answers
56 views

In summer, should attics simply have fans or other ventilation?

The house we have in the US south seems to function in this way in summer: I know nothing about AC/insulation systems but it seems that: If there was simply airflow through the attic, it would stop ...
0
votes
2answers
37 views

Trear chimney down below roof line

I have a hot water tank venting through the chimney. The chimney on the roof needs replaced which is expensive. Could i tear the chimney down anchor 4 inch pcv to chimney below roof line and would ...
0
votes
1answer
178 views

Best type of fan for sucking air through a small hole?

I'm trying to cool a little server farm in my rented apartment that consumes around 5kW of electricity. The insulation of the building is crap and there is no central heating so during the winter it ...
0
votes
1answer
211 views

filtered air intake for whole house fan

I'm installing a new whole-house-fan, and am expecting good results. We live at 8,000' and have ~40 degree (f) temperature swings between day and night with very little humidity. But we also have ...
0
votes
0answers
27 views

Is air intake pulling in humid air a concern ?

We've got a server room in a project where we dont have AC. Ive got a room which we plan to setup as per the rough diagram here, which details the air intake vent and the air extract fan / vent. The ...
0
votes
2answers
32 views

Can I install low voltage lighting in louvered wall register?

Louvered step lights are common but all that I've seen are decorative and not functional vents. I'd like to install actual louvered registers on the side wall of my stairs and install low voltage ...
0
votes
0answers
42 views

What is the best way to add attic intake ventilation?

I have an old attic where the soffits aren't ventilated, and can't be because the soffits are a separate dead air space, not continuous with the attic. It currently has two turbine vents (one of which ...
0
votes
1answer
151 views

Trying to understand the venting in my home

I'm trying to make assumptions on the purposes of the vents in my home and I understand that it may not be correct without opening up walls. It would be a great help for me in knowing how my home ...
1
vote
2answers
2k views

How many soffit vents do I need?

Quick question regarding venting of my attic. I have two gable vents and a ridge vent, but home inspection recommends soffit vents be installed. I've calculated how many soffit vents needed, without ...
0
votes
1answer
43 views

Need help with wiring of in-line ventilation fan

I've got this fan to install as part of a heat transfer system. The fan is controlled by a touch-screen thermostat/control unit and has three speeds. I understand the supplied wiring diagram, but I'm ...
0
votes
2answers
67 views

advice on sealing crawlspace vents to outside air

My house was built in 1950, and in my crawlspace, I have vents covered with mesh wire that circulate air to the outside. I've been reading online that its now best practice to seal the vents in the ...
1
vote
6answers
2k views

Can I block large open vent in basement

Fairly new to this house and I have a large open vent in our basement that is letting a lot of cold air in. The diameter is 8-9 inches. The inside duct is connected directly to the outside vent screen ...
1
vote
3answers
473 views

Very low humidity levels in new construction home - over ventilation?

I just purchased a new home in the suburbs of Boston with move in date of November 2017. The home has felt unusually drafty and cold and i've had to increase the heat about 4 degrees above what I ...
0
votes
3answers
440 views

How to deal with the trapped air in a loft attic?

I live in an apartment (not a house) with a loft attic. It has enough space and I use it as a study room. In summer, the air is extremely hot as I walk up the steps to the attic. Initially I was ...
1
vote
2answers
3k views

How often and long should my fresh air intake run?

My builder installed a fresh air timer on my furnace, a 24-hour pin timer with 15-minute increments. When it's on, it runs the fan and opens the fresh air damper. The resulting air that comes from the ...
0
votes
4answers
183 views

Venting computer equipment, and negative pressure in the home?

I've got some computer equipment that burns really hot (90 celsius exhaust), and I thought it'd be a great idea to recycle that heat to keep the house warm in the winter. The equipment is in the ...
0
votes
1answer
695 views

How can I know if my home has soffit vents

My home is located at illinois,which is built at 1958. I can see 8 roof vents on my root but one contractor say I need to install soffit vents as well. But I can see some slot on my soffits actually ...
0
votes
2answers
76 views

What type of bathroom window for max airflow?

I don't have fans for ventilation at the moment and may choose not to have but I have big windows in bathroom. What type of window should i install? The common ones here are those rectangular ones ...
2
votes
1answer
1k views

Wiring Fresh Air Damper to New Ecobee Thermostat

Ok, here's the deal. I currently have a zoned system with a fresh air "ventilator" (actually just a fresh air damper) and I want to install an ecobee thermostat. The can either be 1 wire (requires ...
0
votes
1answer
97 views

Do I really care about thick insulation if I am ventilating the house?

I notice that a lot of new construction standards have all kinds of very tight, thick insulation standards which is great for saving energy, but do I really care about this if I am ventilating the ...
0
votes
1answer
45 views

What to do with smoke getting into ventilation?

I have a ventilation shaft going from around 1.5m up from the ground level outside, directly into my bedroom ceiling. The ventilator is on 24/7 and its my main source of fresh air since I'm ...