How far can you run a clothes dryer vent? The air/moisture/lint vent.
I’ve got two possible uses for a hole in the foundation and wondered if the dryer ductwork could be run down to the next hole. First hole would be about 5′ of run. Second one would probably be more like 20′ of run.
jt8
“It is difficult to get a man to understand something when his salary depends on his not understanding it.” –Upton Sinclair
Edited 1/15/2008 1:49 pm by JohnT8
Replies
First one sounds fine, second one sounds like it should have an inline booster fan (Fantech dryer booster). I ran mine 16 feet but left enough room for a booster fan if necessary. So far it's been good but sooner or later it's gonna clog up with wet lint.
Also - use solid 4" sheet metal duct for as much of it as you can - far less friction loss.
The Mechanical Code allows 25' subtract 5' for every 90 degree bend and 2.5' for every 45 degree bend.
Many driers claim they can handle 60-80' of pipe in their installation instructions.
Jason
Holy lint traps Batman! a code agrees with me - more or less;)
Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!
C'mon now Hammurabi,
you've been around long enough that you wrote the code, right?:)
'Man who say it cannot be done should not interrupt man doing it' ~ Chinese proverb
What Jason said.
I consider 18-22 feet about max but it depends on how many bends and elbows and whether you use flex or smooth solid pipe.
Welcome to the
Taunton University of Knowledge FHB Campus at Breaktime.
where ...
Excellence is its own reward!
our code goes by what the dryer manufacturer says...
i've seen some that state 70ft-80ft... on longer runs i get 10ft pipe (4" round downspout) the fewer joints & bends the better... i have to think 50ft of smooth metal pipe is better than 15ft of any type flex...
a sweep is always better than a 90... 2-45's are better also... but if you only have so much space you work with what ya got...
p
Maytags used to be 30 some odd feet and deduct I think 8 feet for every 90 degree. Something like that. It's been awhile.
Of course though the fan of any dryer will blow a long way but at some point it will condense back into water. You really want that done outside.
roger
Edited 1/15/2008 9:14 pm ET by roger g
If you've got the book it should tell you. If you don't most manufacturers have this info available online.
I found a really great web site not too long ago that has been very useful. Check it out: www. fixitnow.com
Hope this helps,
Chris Metzger