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Garage Ventilation Options

kTHREE

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Dec 30, 2016
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222
Location
MN
Due to a large grove of lilac bushes on the side of my garage that must not be disturbed, I am unable to add a nice set of windows to the side of my garage.

I'm looking for additional options to get fresh air into the garage.
Normally I'd open a garage door but the mosquito's are out and my new lights in the garage attract a lot of bugs.

So other than the obvious, what are my options?
Working with a 640~ sq ft garage with 10ft ceilings.

Can I just install a massive bathroom fan and vent that out the roof?
How would i go about getting fresh air back in?
I have yet to find a garage door with a sliding window.
 
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Chris705

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Nov 1, 2012
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The Finger Lakes of NY
"Due to a large grove of lilac bushes on the side of my garage that must not be disturbed"

I just want to point out that these lilac bushes should not be tight to your garage side wall. Lots of moisture, rot etc. can be attributed to bushes trees growing up tight to building walls and roofs. I would recommend a min. of a foot or two for proper air circulation. That may allow you to squeeze a window in the sidewall....
 

kwschumm

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Feb 13, 2016
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Location
Olympia, WA
I'm partial to energy recovery ventilators, but they are more than $600 unless you find a used one. A normal bathroom fan probably wouldn't provide much ventilation unless your garage is very small. An attic exhaust fan on one wall would probably help, but you'd need to have a screened make up air vent on the opposite wall to allow fresh air to enter easily. Those would likely be loud though.
 
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DC73

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Dec 27, 2014
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Location
Lubbock TX
Can I just install a massive bathroom fan and vent that out the roof?
How would i go about getting fresh air back in?

Yes. If your garage has a soffit, you can run duct from the garage ceiling to the soffit area for fresh air intake. If you want to get fancy, you can use a motorized damper and a relay to have the fresh air intake closed until you turn on the exhaust fan.

If your garage doesn't have a soffit, you might could still run some duct through the attic to an appropriate location for a fresh air intake.

You could also punch a hole in the garage wall but it might be harder to fit in a motorized damper without having it protrude into the garage space.

Rig up some insect screen on the intake to keep the critters out.



DC
 

Stuart in MN

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Sep 8, 2005
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Location
Minneapolis
I'd put an air intake louver right behind the lilac bush - then you'll get fresh air, plus it will smell nice inside. :)
 
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kTHREE

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Dec 30, 2016
Messages
222
Location
MN

Now were talkin! I wonder if my existing roof attic vent would be ok or should I just vent to outside.

I'd put an air intake louver right behind the lilac bush - then you'll get fresh air, plus it will smell nice inside. :)

The wife had never experienced lilacs before, such joy. She was so sad when I told her they only last a week or two.
 

kwschumm

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Location
Olympia, WA
I'd vent to outside. If the attic becomes pressurized a lot of attic dust could be blown into the house through every little ceiling penetration.
 
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