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


Thread Tools Search this Thread Display Modes
Old 07-12-2006, 09:08 PM   #1
Join Date: Jul 2006
Posts: 1
Rewards Points: 10

Drain on air intake for gas furnace

My high-efficiency gas furnace uses two PVC pipes to connect with the outside world. One (I think the exhaust) has a drain for water that condenses in the pipe; the other (the air intake, I think) has no drain. I know that there's moisture in the pipe because there's a drip where the nearly horizontal pipe enters an elbow to drop vertically to the furnace. During the winter, it drips at the rate of about 4 fl. oz. per day. Should I install a drain similar to the one that's on the other pipe ?


jlupine is offline   Reply With Quote
Old 11-21-2006, 10:55 PM   #2
Join Date: Nov 2006
Posts: 7
Rewards Points: 10

Drain on air intake for gas furnace

the exhast on your furnace must have the drain because the heat creates moisture in the pipe which should run back down hill towards your furnace, then through the furnace to a drain or pump to the outside, the other pipe is the intake, which give your furnace the air it needs to keep your gas flame burning, [no air no flame] this pipe should not have water in it, the outside termination should 90 down so there is no way for water to get inside.so if there is water in the intake pipe of the furnace you could have a problem

kidd is offline   Reply With Quote

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

Top of Page | View New Posts

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