Draining attic Furnace condensate into sewer vent staxk - General HVAC Discussion - HVACSite

Draining attic Furnace condensate into sewer vent staxk

Thread Tools Display Modes
Old 02-23-2018, 02:41 PM   #1
Junior Member
Hvacnewb's Avatar
Trade: Apprentice
Join Date: Feb 2018
Posts: 1

Draining attic Furnace condensate into sewer vent staxk

Is it permissible to drain the condensate line of an attic furnace into a sewer vent stack since the internal trap will remain wet? My concern is that if the trap were to dry out for some reason, sewer gasses can back up into the furnace. Won't it dry out during summer months? Is an air gap needed? Is it not concerned if it's only connected to the exhaust side of things rather than the air supply? Thanks.

Hvacnewb is offline  
Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. HVACSite.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Thread Tools
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
Why Does My Furnace Keep Running? HVACPhilly Residential HVAC Forum 0 01-09-2018 08:27 AM
What Should I Do If My Furnace Stops Working? HVACPhilly Residential HVAC Forum 0 12-30-2017 08:28 AM
HVAC Philly’s 7 Reasons Your Furnace May Not Be Kicking On; Heating Repair HVACPhilly Residential HVAC Forum 0 12-16-2017 08:25 AM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?


SEO by vBSEO 3.6.1