Gas dryer vent connectors/ transition ducts.

[Brandon Whitmore]

Do any of you keep a list of dryer manufacturer's who approve/ disapprove of the use of flexible metal (not semi- rigid) metal transition duct material.

Several years ago, I couldn't find any dryer manufacturer's who allowed flexible metal, but at least one does now, which has thrown me for a loop.

Here's the one.

[Eric B]

Why not say something along the lines of not generally recognized material for this application? You know that to be true and you've left leeway for the manufacturer who may permit it.

[SNations]

What's the difference between semi-rigid and flexible metal? I always thought they were synonymous. In fact here's a link to a dryer manufacturer installation manual that says on page 31: "Use rigid exhaust duct or 521P3 semi-rigid flexible metal duct kit." So they seem to think the two terms are interchangeable.

Download Attachment: dryer info 503806.pdf

695.93 KB

[Mike Lamb]

Clothes dryer fires happen all the time. No foil or plastic for me or my clients. Don't care what manufacturer says.

Click to Enlarge

62.76 KB

[patt]

There are UL approved flex venting for dryers

In December 2006 that Underwriters Laboratories established UL 2158A "Clothes Dryer Transition Duct" which is an approved standard for flexible high temperature exhaust duct rated to 430 degrees Fahrenheit, that can also be used on both electric and gas dryers.

One manufacturer of listed transition ducts.

http://www.deflecto.com/products/pc/UL- ... ts-d34.htm

PDF is another manufacturer.

Download Attachment: UL_Listing_Detail.pdf

523.03 KB