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Old 01-27-2010, 09:31 AM   #1
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Vent gas dryer straight up through attic and out roof


Ok, so after doing a bunch of research, really seems this topic is divided in half for those that say no problem to those that say its a no no.

I basically need to re-route my dryer vent straight up through the roof in order for me to gain 4" I desperately need in my laundry area. Putting doors on to cover washer/dryer area and dryer is sticking out too far.

So I found an old plastic flex pipe that was already run up into the attic and appears to be vented out to a soffit. Obviously not using that, but shows I have a clear path up for 4" metal piping.

So trying to see what everyone's thoughts on how to accomplish this as I prepare for it (ie: insulating around pipe near roof exit, type of cap to use, etc). I also saw that they make sort of a booster fan for long runs up, wondering if makes sense to add this as extra precaution?

Thanks.

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Old 01-27-2010, 09:42 AM   #2
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Vent gas dryer straight up through attic and out roof


How far will the vent run thru the roof ?

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Old 01-27-2010, 10:29 AM   #3
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Vent gas dryer straight up through attic and out roof


I hate running anything through the roof. Just causes another potential leak.
Also, how do you plan on pumping the lint up that far? Or cleaning the vent? Will the pipe be removable?
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Old 01-27-2010, 10:47 AM   #4
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Vent gas dryer straight up through attic and out roof


so the vent will be from the first floor, up through that ceiling and then through the small attic (~4ft high). So all in all, probably looking at ~13ft in total to break through roof line, with just one 90 degree bend to go from back of dryer and then straight up. The pipe would be go through the 1st floor wall, then completely accessible once it passed the 1st floor ceiling into the attic/roof. So could/would I put in some sort of access panel or something into the duct in the attic part?

Here is a link with some of the info I found, including the "booster fan".
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Old 01-27-2010, 11:41 AM   #5
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Vent gas dryer straight up through attic and out roof


You can't use the plastic vent pipe
User a periscope dryer vent & go out thru the wall
Either on one side -ie remove washer & install vent - or going above the dryer & out

Lint will tend to fall down the 13' pipe & bunch up at the bottom, creating a fire hazard
You will need access at the bottom of the vent every year to clean out lint
Either by moving the washer, or the dryer




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Old 01-27-2010, 12:18 PM   #6
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Vent gas dryer straight up through attic and out roof


Ok, so I could easily pull out the dryer every year or even 6 months to clean out the lint collecting right there. I def would not use the plastic pipe, just mentioned that as it shows I have a clear shot through the wall into the attic (would use metal duct). My existing line runs directly behind my dryer to the left (if facing it) -> behind the washer -> through little laundry room wall -> into my daughter's playroom (covered by wood boards) -> out the side of my house.

So by running it up through the roof, also meets my wish of it not running through my daughter's playroom either.



Quote:
Originally Posted by Scuba_Dave View Post
You can't use the plastic vent pipe
User a periscope dryer vent & go out thru the wall
Either on one side -ie remove washer & install vent - or going above the dryer & out

Lint will tend to fall down the 13' pipe & bunch up at the bottom, creating a fire hazard
You will need access at the bottom of the vent every year to clean out lint
Either by moving the washer, or the dryer





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