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Old 05-17-2011, 10:27 PM   #1
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Dryer Venting Question


Last year we bought our house, the dryer wouldnt dry, I cleaned the line, it sill wouldnt dry, bought a new dryer, it improved but not by much. Our dryer in the middle of out house is currently venting though the roof, we have had nothing but problems with this, water coming in during storms and extremely poor drying times.

I decided to vent it though the crawlspace and run the vent though the rim joist. I calculated 12' with only (1) 90* bend and (1) 45* bend, I figure this is much better than a 15' vertical run with no bends, as I could find nothing good about vertical vents.

Option 1 is to get it though the wall and go down, I have a 4" wall behind the dryer, I can get a dryer box that would allow me to bend a 4" pipe to a 3x6 pipe and then I can attach the flex pipe to the dryer and my ridged pipe under the house.

Option 2 is a little more work I think, I have a ceramic tile floor with 12x12 tiles and I can remove a tile behind the the dryer and just vent it directly though the floor, its not like I will ever see behind the dryer so I would not really mind the missing tile.

Also this dryer is in a deep closet so there is about 18" behind the dryer for me to figure something out with.

What do you guys think?

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Old 05-17-2011, 10:53 PM   #2
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Dryer Venting Question


If your getting this inspected and/or want to do it the right way. I THINK there is a certain amount of bends / length you can have in a dryer run for proper ventilation.

you might want to check out code on this one.

good luck

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Old 05-17-2011, 11:06 PM   #3
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Dryer Venting Question


there will be no inspection on this.. but I do want to have it correct.. I am just not sure how people vent dryers in the middle of the house..

just used google and it tells me the 2009 code which is in use now allows for a 35' in run length

90* = 5'
45" = 2.5'

plus my 12' of straight pipe I am looking at 19.5' of run, which looks good to me, if what I found is correct.

Last edited by cbzdel; 05-17-2011 at 11:09 PM.
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Old 05-18-2011, 07:03 AM   #4
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Dryer Venting Question


Have you tried pulling the duct out to clean all of the crap out of it. When I pulled my mom's out of the ceiling, there was about 4 feet of crud plugging the line. Once out, runs like a charm. As for the water, post pic' s how the current run is right now.
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Old 05-18-2011, 02:16 PM   #5
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Dryer Venting Question


yes its completely clean, I dont get why it doesnt work, I have tried running a long house out a near by window and it works great then, it just doesn't work very well with the vertical run...
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