Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Appliances

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 06-06-2010, 11:29 PM   #1
Member
 
Join Date: Feb 2007
Posts: 118
Share |
Default

Backdraft Damper For Dryer Duct


I need to install a backdraft damper at the end of my dryer duct. Any recommendations? The Aldes BDD4 advises not to use it for dryers. Maybe the Fantech RSK4 would be OK?

For your amusement, here's what I found when I investigated why my dryer wasn't working too well in my 3 y/o house. I found the end of the duct screwed into the roof sheathing, and when I unscrewed it, here's the beginning of what I pulled out:



I proceeded to remove a grocery bag full of lint, feathers, and twigs, and I was very excited to have solved my problem. Alas, when I tried to screw it back to the roof, the entire segment came off in my hands:



This had been previously sort of attached to the duct exiting the wall space:



As you can see, instead of using a proper 90deg elbow, the sociopath who installed the thing cut a pipe at about a 45 degree angle and loosely taped it to the vertical pipe, which explains some of the lint and excavation I found nearby in the insulation. I guess he figured the airflow reduction would be mitigated by the poor seal he achieved. No, wait, that's stupid. The jerk clearly didn't give any consideration to the performance, longevity, or correct operation of the thing. So I had a very fun couple of afternoons fixing this in the very cramped space I had to work in. (No, I didn't reinstall the piece of junk pictured above; I did it right.) Best thing I bought was a 2x4' piece of MDF to lay across the joists, which was a lot easier on my stomach than lying on the joists directly.

Anyway, the vent cap is just a short piece of pipe with a hood over it to keep out rain, open on all sides but the top. It has no damper, hence my question.

tima2381 is offline   Reply With Quote
Old 06-07-2010, 03:24 AM   #2
Tool Geek
 
PaliBob's Avatar
 
Join Date: Jun 2008
Location: Pacific Palisades CA
Posts: 2,488
Default

Backdraft Damper For Dryer Duct


Thanks for posting the pics

ASHI (American Society of Home Inspectors) publishes a newsletter that has an applicable article on Dryer Exhaust Systems

__________________
Disclaimer
& Stay Safe
.....Bob Lavery
PaliBob is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
adding duct work and outlet jjrbus HVAC 17 05-30-2010 02:13 PM
Zoning question spyder24 HVAC 23 04-03-2010 07:12 PM
Dryer vent backdraft damper BlueCrystalMan Building & Construction 4 01-01-2010 02:26 PM
Low Voltage Wiring for Ele. Inline Duct Damper mntnvew Electrical 15 06-08-2009 03:16 PM
Condensation in Wall: Can I Seal a Dryer Duct With Caulk? xquercus HVAC 5 07-01-2007 02:33 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.