Any Way To Safely Vent A Water Heater Without A Chimney?

 
Thread Tools Search this Thread Display Modes
Old 09-12-2017, 08:02 PM   #1
The Remodeler
 
Splinter's Avatar
 
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 1,515
Rewards Points: 190

Any Way To Safely Vent A Water Heater Without A Chimney?


I have an almost new atmospheric vented water heater I want to use in my shop but dont have a chimney on the building.

It's a 40 gal gas fired unit that I would like to stick upstairs. The concern is what type of vent material can I use, and how long does an atmospheric vent have to be for a water heater to get the proper draft? I would have about 2' of vent to the underside of the roof, just off-center of the peak.

I read bad things about using a power vent out the side wall... Would this still be the best option?

Is there an inexpensive wall mount unit I should buy instead that could vent out the wall?

Any input is appreciated... Except from Leo... He's just a smartass.
Splinter is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.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!

   

Advertisement

 

Old 09-12-2017, 08:37 PM   #2
Goin' Down in Flames....
 
Seven-Delta-FortyOne's Avatar
 
Trade: Highwayman
Join Date: Mar 2011
Location: Somewhere Between Heaven And Hell
Posts: 2,599
Rewards Points: 1,150

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


B vent through the roof is pretty standard here.


Delta

Advertisement

__________________
Those Who Can, Do.
Those Who Can't, Teach.
Those Who Lack The Ambition To Teach, Inspect.
And Those Who Just Have No Skill At All, Become Critics.
Seven-Delta-FortyOne is online now  
The Following 3 Users Say Thank You to Seven-Delta-FortyOne For This Useful Post:
flashheatingand (09-13-2017), Splinter (09-13-2017), Tom M (09-15-2017)
Old 09-13-2017, 07:45 PM   #3
The Remodeler
 
Splinter's Avatar
 
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 1,515
Rewards Points: 190

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


So a B vent from the top of the water heater through the roof and above the ridge 2'.....

That's only going to be about 4' of pipe total... No issue with drafting?
Splinter is offline  
   
 
Old 09-13-2017, 08:13 PM   #4
Capra aegagrus

 
Tinstaafl's Avatar
 
Trade: Remodeler
Join Date: Jan 2008
Location: Central Pennsylvania
Posts: 21,061
Rewards Points: 2,735

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


It'll work just fine.

I have a heater vent that elbows out through the wall about a foot up, then elbows up about another 2-3'--with 8' of gable wall above the top of that. Been meaning to do something about that for the last 30 years or so.

If you're paranoid, put in a CO detector.
Tinstaafl is offline  
The Following User Says Thank You to Tinstaafl For This Useful Post:
Splinter (09-13-2017)
Old 09-14-2017, 06:01 AM   #5
Pro
 
Big Johnson's Avatar
 
Trade: GC
Join Date: Jun 2017
Posts: 362
Rewards Points: 120

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


Quote:
Originally Posted by Splinter View Post

I read bad things about using a power vent out the side wall... Would this still be the best option?


Really? there are two things plumbers up here refuse to do. Use copper and run Type B. You want something new done its PEX and power vent.

They'll tie a replacement water heater to existing B vent but that's it.
Big Johnson is online now  
Old 09-14-2017, 06:23 AM   #6
John the Builder
 
SmallTownGuy's Avatar
 
Trade: Carpenter/Builder
Join Date: Sep 2012
Location: Oxford, MI
Posts: 10,038
Rewards Points: 4,472

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


"atmospheric vented water heater"
^^^--- I had to google that.
__________________
“I tried being reasonable, I didn’t like it.” – Clint Eastwood
“The worst day working for yourself, is still better than the best day working for someone else!”
..Jim Rohn
SmallTownGuy is online now  
Old 09-14-2017, 04:01 PM   #7
The Remodeler
 
Splinter's Avatar
 
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 1,515
Rewards Points: 190

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


Quote:
Originally Posted by Big Johnson View Post
Really? there are two things plumbers up here refuse to do. Use copper and run Type B. You want something new done its PEX and power vent.

They'll tie a replacement water heater to existing B vent but that's it.
I'm assuming you mean a new install gets a water heater with the fan built in to the top of the unit.
I was thinking about the power vents that are basically a remote unit. They get mounted to the house wall and single wall vent gets run from the heater to the fan unit. I hear those dont last.

Quote:
Originally Posted by SmallTownGuy View Post
"atmospheric vented water heater"
^^^--- I had to google that.
Just didnt want any confusion with the factory installed power vent units.
Splinter is offline  
Old 09-14-2017, 04:21 PM   #8
LRG WoodCrafting

 
Leo G's Avatar
 
Trade: Self Employed Moron
Join Date: May 2005
Location: Windsor Locks, Connecticut
Posts: 34,084
Rewards Points: 15,034

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


I think you should use drier vent. You know, that slinky stuff with a tinfoil covering? Make sure your CO sensor has batteries.

You asked for it, you got it.
__________________
Sawdust Follows Me Everywhere
I can explain it to you, but I can't understand it for you.

Quote:
Originally Posted by HusqyPro View Post
Carpenter by day.
Mad scientist by night.
http://lrgwood.com
Custom Cabinets in Hartford County Connecticut
Leo G is online now  
Old 09-15-2017, 11:05 AM   #9
Goin' Down in Flames....
 
Seven-Delta-FortyOne's Avatar
 
Trade: Highwayman
Join Date: Mar 2011
Location: Somewhere Between Heaven And Hell
Posts: 2,599
Rewards Points: 1,150

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


Quote:
Originally Posted by Leo G View Post
I think you should use drier vent. You know, that slinky stuff with a tinfoil covering? Make sure your CO sensor has batteries.

You asked for it, you got it.
You'd be surprised how many water heaters I come across that have dryer vent for the first few feet.

I can't imagine who thinks that's a good idea. I can't believe that there are that many HO's doing their own WH replacements.



Delta
__________________
Those Who Can, Do.
Those Who Can't, Teach.
Those Who Lack The Ambition To Teach, Inspect.
And Those Who Just Have No Skill At All, Become Critics.
Seven-Delta-FortyOne is online now  
Old 09-15-2017, 11:11 AM   #10
LRG WoodCrafting

 
Leo G's Avatar
 
Trade: Self Employed Moron
Join Date: May 2005
Location: Windsor Locks, Connecticut
Posts: 34,084
Rewards Points: 15,034

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


People in general are stupid. This doesn't surprise me.
__________________
Sawdust Follows Me Everywhere
I can explain it to you, but I can't understand it for you.

Quote:
Originally Posted by HusqyPro View Post
Carpenter by day.
Mad scientist by night.
http://lrgwood.com
Custom Cabinets in Hartford County Connecticut
Leo G is online now  
Old 09-20-2017, 12:27 AM   #11
Controls Guy
 
MechanicalDVR's Avatar
 
Trade: Deplorable Electrician
Join Date: Jun 2007
Location: God's Country of Virginia
Posts: 1,033
Rewards Points: 1,185

Re: Any Way To Safely Vent A Water Heater Without A Chimney?


Just use B-vent and make sure it terminates at least 2' higher than anything with in 10' of the termination.

Advertisement

__________________
"Injustice anywhere is a threat to justice everywhere" mlk
100% Union and Proud of It
MechanicalDVR is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Horizontal vent cap for tankless water heater pzeiler Plumbing 4 05-29-2012 07:31 AM
Water Heater as Potable - Space Heater Goldentouch Plumbing 3 03-04-2012 04:49 PM
Is it ok to install an expansion tank right on top of water heater? Electric_Light Plumbing 29 10-24-2010 07:22 PM

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

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

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?