Home Improvement Stack Exchange
Home Improvement 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.

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.

454 questions
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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 fun speeds, so I need to be able to measure the…
Walker
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How can I prevent my furnace vent from icing up and shutting off the furnace?

How do I keep my exhaust vent from icing up in the winter. We are in a new house with a HE Furnace in a pretty cold zone. It has iced up two times now and we are only in our 1st winter. Anything I can do to help prevent this?
chris edwards
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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 consideration. My understanding was that we would…
mark
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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 convert the readings into liters per second?
Walker
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Need a window exhaust fan with louvers that close automatically

I currently put a box fan in a window as an exhaust fan when I need to ventilate a room in my house. But when I turn the fan off, I need to remove the fan and close the window. I'd like to have a system with louvers that automatically close when…
StepByStep
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How can I vent moisture from a small pump house?

I have a small shed, 8x7, near the house that I use as a pump/filter house for a koi pond. This building has a 7 foot deep basement made of cinder block which houses an open top settling tank, so humidity will be high. The basement and main floor…
Ryan
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Is it legal in a multi-unit building to draw air for ventilation from the attic?

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 date. A friend of mine suggested installing an…
Gardenia
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What kind of ventilation do I need in my workshop?

I have a roughly 2.5 by 5 meter workshop with 2.5m high ceilings in which I work on electronics (so lots of soldering), do some occasional painting, and which houses a 3D printer. I want to add some ventilation in the ceiling, but I'm unsure what…
Bas
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Everything in my house vents into the ceiling cavity. Should I change this?

After reading this question: Does a bathroom exhaust fan have to vent to the outside? I realised that the house I live in now, and everywhere else I have ever lived, everything just vents into the roof cavity, and the roof cavity has "whirly birds"…
Mark Henderson
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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. There's an extra one in the front and another in the…
RyanD
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Will an extractor fan increase air flow when the room already has permanent openings to outside?

I have a bathroom 2.5m X 1.8m X 3.5m ceiling. On one wall at 2.4m off the ground there is approximately 0.9m X 0.4m ventilation frame, which is covered in metal mosquito mesh. There is a further 0.8 X 0.2m mesh lower down the same wall, obscured by…
thelawnet
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How do I open a fresh air vent only when the HVAC system is on?

An unusual problem for sure and my HVAC contractor (or anyone else in the business) has not been able to figure out a solution. I thought I would reach out to a larger group of experts that may know a bit more. Simple goal: to have the fresh air…
Robert_S
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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 a front door) with no blatant air gaps, and…
Mastiff
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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 which would provide the equivalent of constant 20…
akb
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Ventilation intake for small room

So I have a storage/utility room. High humidity (Indonesia). Dimensions approx 3.3 x 3m x 3m . It's still under construction, and there are no windows, just a door. Material is AAC (lightweight concrete) 60cmx20cmx10cm blocks to three walls, and red…
thelawnet
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