90%+ new heater ...steam???


Old 01-05-16, 07:26 AM
Thread Starter
Join Date: Nov 2015
Posts: 4
Received 0 Votes on 0 Posts
90%+ new heater ...steam???

I just got a new heater installed. The exhaust goes outside and up the wall of my house about 12 feet. It's 3" PVC with a 90 an elbow at the top.

I'm noticing a fair amount of steam coming out from this "chimney".

Is this normal?

This should share as a slide show:
GregA41 Gallery - SlickPic

Last edited by Greg Avakian; 01-05-16 at 07:31 AM. Reason: trouble posting pics
Sponsored Links
Old 01-05-16, 07:51 AM
Join Date: Jun 2012
Posts: 896
Received 2 Votes on 2 Posts
Water/Moisture is a by product of combustion, especially in higher efficiency furnaces. On colder days, you'll see the moisture in the exhaust gas. Sorta like when you breath out on a very cold day. You can also see this in cars tail pipes in the early mornings.

Yes, it's normal.
Old 01-08-16, 05:38 AM
Thread Starter
Join Date: Nov 2015
Posts: 4
Received 0 Votes on 0 Posts
Thanks Tom, your answer makes perfect sense. I was just surprised by how much steam was escaping; I didn't expect to see clouds!
Old 01-09-16, 12:17 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 52,676
Received 343 Votes on 321 Posts
If the humidity gets high enough and it gets cold enough..... you'll have ice and icicles hanging from the pipe.
Old 01-09-16, 07:33 AM
GregH's Avatar
Super Moderator
Join Date: Jan 2001
Location: Manitoba
Posts: 9,988
Received 8 Votes on 8 Posts
My spidey sense tells me you are in a climate zone where you would expect steam.
I woud suggest you go back and add your location to your profile to help with any future questions.

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

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: