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Discussion Starter · #1 · (Edited)
For my dryer vent, I have to go thru a hole in a wall into my garage. I have to go up 40" or so to get above a doorway to outside wall, 12 feet from the hole.

Should I go straight up then a 90 to go over door, or a 45 angle from the hole to a 45 to be above the door?

Somewhat conditioned garage-well above freezing in winter. Will slope the horizontal to the outside. Wondering what angle to use as the 45 will be longer to maybe make condensation.
 

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retired framer
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Over the door? thru the header?

shorter distance the better, and 45s are better than 90s
do you have a plan for how to seal the wall between the house and garage?

Usually that means a box around the duct and drywall.
 

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Discussion Starter · #3 ·
Along the wall, over top a door opening into the mudroom where dryer is.

Was thinking the same-shorter is better.

Super snug hole in . Will be sealing well inside and out.

Over the door? thru the header?

shorter distance the better, and 45s are better than 90s
do you have a plan for how to seal the wall between the house and garage?

Usually that means a box around the duct and drywall.
 

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retired framer
Joined
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59,756 Posts
Along the wall, over top a door opening into the mudroom where dryer is.

Was thinking the same-shorter is better.

Super snug hole in . Will be sealing well inside and out.
A wall between house and garage is bearing wall in most houses so expect a header.

Just sealing around a pipe would not pass here.
 
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