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  #1  
Old 1/20/09, 2:54 PM
Buck Hartley, CMI Buck Hartley, CMI is offline
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Default PVC vent for clothes dryer

What is your opinion of a PVC vent for a clothes dryer. This is first time that I have seen this. The large PVC pipe in the photo is the dryer vent.

Thanks! For your input in advance.
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  #2  
Old 1/20/09, 3:11 PM
Larry D. Kage Larry D. Kage is offline
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Default Re: PVC vent for clothes dryer

PVC Ducting
While PVC tubing looks like it would be ideal for dryer venting being rigid and perfectly smooth, numerous technicians report that some sort of static effect seems to take place during use which causes lint to adhere to it, eventually leading to blockages. It may be best to avoid this material for this application if you can use rigid metal ducting instead.


also-

http://www.nachi.org/forum/f18/safety-issues-2436/



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  #3  
Old 1/20/09, 3:11 PM
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Michael Roberson Michael Roberson is offline
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Default Re: PVC vent for clothes dryer

My .02 cents.

I dont see a problem with the PVC itself, however, it is 3" not 4" like most dryer vents. Thats allot of tape to make the two fit.
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  #4  
Old 1/20/09, 3:12 PM
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Michael Roberson Michael Roberson is offline
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Default Re: PVC vent for clothes dryer

Dang your fast Larry.
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  #5  
Old 1/20/09, 3:15 PM
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Joe Funderburk, CMI Joe Funderburk, CMI is offline
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Default Re: PVC vent for clothes dryer

"IRC M1502.5 Duct construction. Exhaust ducts shall be constructed
of minimum 0.016-inch-thick (0.4 mm) rigid metal
ducts, having smooth interior surfaces with joints running in
the direction of air flow. Exhaust ducts shall not be connected
with sheet-metal screws or fastening means which extend into
the duct."



Joe Funderburk, CMI
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Inspecting Upstate SC & Charlotte Metro, NC
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  #6  
Old 1/20/09, 5:25 PM
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relliott relliott is offline
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Default Re: PVC vent for clothes dryer

If you want a real life example,think about this one.
Have you ever seen a Furnace use cat 40 other than cat 4 high efficiency model?

Now ask your self why.

You then have your answer. Make sense?
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  #7  
Old 1/20/09, 5:55 PM
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Jeffrey R. Pope Jeffrey R. Pope is offline
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Default Re: PVC vent for clothes dryer

I don't understand Bob. Would you mind expanding on what you're trying to say?



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  #8  
Old 1/20/09, 5:59 PM
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relliott relliott is offline
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Default Re: PVC vent for clothes dryer

Plastic is not made for that kind of heat Jeff.
It may not burn ,but it goes soft and causes blockage.

You could have tried an answer.
Question with a question darn you
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  #9  
Old 1/20/09, 6:03 PM
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Michael Roberson Michael Roberson is offline
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Default Re: PVC vent for clothes dryer

I stand corrected.

Ty Bob
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  #10  
Old 1/20/09, 6:26 PM
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relliott relliott is offline
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Default Re: PVC vent for clothes dryer

Quote:
Originally Posted by mroberson View Post
I stand corrected.

Ty Bob
I was checking out a ICC forum a little while ago and some feel it is ok undera slab, but if the temp is high enough it can turn to a highly pliable plastic state and collapse.

Lint stops blowing through , backs up and then the lint turns into a fire hazard.

Of course the easy button says ,it is against code.
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  #11  
Old 1/20/09, 8:49 PM
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Marcel R. Cyr Marcel R. Cyr is offline
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Default Re: PVC vent for clothes dryer

Besides the fact, that using PVC pipe for Dryer Exhausts is against all Standards and Specifications, let us not forget that Code that prevails in this matter.; The Manufacturers Recommended Installations.



Hope this helps.

Marcel




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  #12  
Old 1/20/09, 9:02 PM
Buck Hartley, CMI Buck Hartley, CMI is offline
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Default Re: PVC vent for clothes dryer

There is alot information on the NET about this subject.

Thanks! for all the replys. I always learn something on this board.
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  #13  
Old 1/20/09, 10:40 PM
Paul Pendley Paul Pendley is offline
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Default Re: PVC vent for clothes dryer

I guess you cant get much more clearer than that photo.



Paul Pendley
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  #14  
Old 1/21/09, 12:33 AM
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Mario A. Kyriacou, CHI Mario A. Kyriacou, CHI is offline
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Default Re: PVC vent for clothes dryer

http://www.ul.com/consumers/dryers.html





'Imagination is more important than knowledge' (sometimes)
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