Quick View. The maximum length was 16 feet with no elbows or kinks. Shared vents are strictly forbidden. Good article, continue to share. subroussard@gmail.com. I am having trouble getting our members to write articles and want to use your article as a good example of what they should be trying to do. With every home inspection, I always recommend that the clothes dryer vent system be thoroughly cleaned at least twice per year as preventative maintenance. First, the tubing is incorrect. Back in the good old days when a dryer was expected to last between 15 and 20 years. No! It is; however, very important and the article helps to put it on the front burner. This seems to be a frequent topic of discussion and confusion amongst home inspectors, so … Unfortunately, that is not the case. It the mylar transition duct is UL approved, it will have a UL sticker on it. This, in turn, causes the drying cycle to be much longer than normal and raises utility bills. Plus, there is a summer or winter setting that can be selected so you have control over the warm air being exhausted. It’s not every day you see mylar tubing coming out of a dryer, but when you do, its not good. The 4 x 5' ProFlex duct is UL approved meeting all fire and safety ratings for safe dryer venting. Ducts made of this material are more likely to sag and let lint build up at low points than ridge metal or UL approved flexible metal ducts. The ProFlex dryer duct is ideal for both gas and electric clothes dryer applications. 435. The same happens inside a dryer with a kinked or to long of a vent. House fires related to clothes dryer vents are much more common than most people believe but luckily are relatively easy to prevent. Some HVAC professionals and chimney sweeps also offer dryer vent cleaning as a service. Copyright © 2013. Opt-in By Matthew Steger, ACI. If the clothes dryer and exterior vent are in close proximity, a single piece of flexible rigid metal duct (as seen below) can often be safely used as the sole duct, assuming it does not pass behind a wall, floor, or ceiling covering. Clothes Dryer Exhaust Vent Installation, or dryer vent duct cuct intallation specifications. If you watch it the fire will migrate and engulf all of the lint. Foil dryer transition ducts are allowed by code and by some clothes dryer manufacturers. Before you install this type of duct, check that your dryer is approved for it. Can we use a 4” to 3” adapter at the exit point of house without too much issue? Venting a clothes dryer into a garage, basement, attic, or anywhere else inside the home can lead to excessively high humidity levels, mold, and an increased fire risk. Choose the Highest UL Fire Resistance Class. BetterVent Indoor Electrical Dryer Vent Kit. Mylar foil tubing is not approved for use as a clothes dryer vent material and should not be used for this application. Maximum Operating Temperature . Venting into an attic or crawl space will encourage mold growth in those areas. CLEARLY.” ASHI Certified Inspector Certified Level 1 Infrared Thermographer Phone: 717.361.9467 Fax: 831.306.9467 Web: WINHomeInspectionElizabethtown.com, >Click to Print Material. Matthew Steger, owner/inspector of WIN Home Inspection, is a Certified Level 1 Infrared Thermographer and an ASHI Certified Inspector (ACI). And water heater) in the same room as the dryer would it cause a gas backflow through the heat vent from the dryer not having combustion air? (story continues) A few manufacturers of mylar foil tubing have been able to obtain a UL listing; these products specifically should be used as the transition duct ONLY between the dryer and the actual rigid metal dryer vent (not the full dryer vent!). If you need to upgrade your vent using UL-Approved materials, some recommended items are listed below. A few manufacturers of mylar foil tubing have been able to obtain a UL listing; these products specifically should be used as the transition duct ONLY between the dryer and the actual rigid metal dryer vent (not the full dryer vent!). $3.25. Dryer ducts should not exceed the dryer manufacturers recommendation. Lint is very flammable and all it takes is a small spark to ignite it leading to a house fire. It is Dryerflex transition hose, which is UL 2158A approved for dryer venting, and zero flame spread. Lots of people die every year from carbon monoxide poisoning. It is flexible and sturdy enough to support the weight of the dryer side magnet and self-align the coupling as you push your dryer into place. Included in this kit is a 4 x 8 ProFlex duct which is UL approved meeting all fire and safety ratings for safe dryer venting. When a product is UL-listed, it means that the global safety certification company UL has confirmed that the the product is safe for use. He can be reached at: 717-361-9467 or msteger@wini.com. A revision of a single or multiple requirement(s). ProFlex dryer transition duct UL approved for safe dryer venting Not be used with gas clothes dryers Description Dundas Jafine TDIDVKZW ProFlex Indoor Dryer Vent Kit with 4-Inch by 5-Foot ProFlex Duct 2. A new Standard or Outline that has not previously been published. Instructions included. Great article. In Stock. (story continues below). Poorly connected internal ducts can also trap lint. It is a flexible ribbed shiny tubing that many home owners and contractors have installed and they wrongly assume that it is metal because it is shiny. This should be placed on a “Check List of Maintenance Items” that should be done every 6 months. How do you vent out a dryer to the outside? Great article! Man, you hit the nail on the head. The exterior cover should not have a screen since it will cause lint build up and block the vent over time. Label-Aid Systems is part of the UL Authorized Label Suppliers Program (PGAA) which means we can meet all of your UL approved label needs, providing you with Recognized Component Labels, Certification Marks, or Combination Labels which are compliant. Home Inspectors, Home Inspectors, Uncategorized, Clothes Dryer Vents: The Proper and the Improper The more bends in the line that exist, the shorter the overall length should be. This forms an air tight and easy to use air duct. Our Price: $39.00 We Match & Beat Any Price. Enjoy the 8 ft. Semi-Rigid Dryer Duct WX08X10075DS, UL approved this duct is easy to install with the 2 included clamps at The Home Depot Since day 1 we have clothing lint all over our house. The photo below shows an installation of mylar foil tubing which actually runs behind a fixed wall covering and was the only dryer vent material installed in this particular home. At the exact time these appliances are being used my.kids fall asleep we all get headaches and everyone argues…when i tell them its co …they throw me out of the house…hard to see whats happening when your in it…also what happens when a dryer electric is exhausting outside directly above the combustion intake of a high eff. One aspect you did not cover is the use of listed dryer vent booster fans. Of course, home inspectors do not move insulation, disassemble walls/ceilings, or move appliances to perform the inspection. You are correct. I purchased a very old mobile home on a lot where it has been for many years. Overall Length. If you have any doubt, clean your lint screen and keep the lint from a couple loads, take the lint outside to a safe place and apply a lighter to just a small bit of the lint. 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