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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-16-2012, 07:36 PM   #1
011010100110111101100101
 
Join Date: Jan 2011
Posts: 240
Share |
Default

Direct vent propane furnace + water heater


I'm no plumber, or HVAC tech. That is my disclaimer.

I'm installing a direct vent propane furnace. You know, the PVC out the wall type.

I'd also like a propane water heater. Can I tie a direct-vent (forced draft) water heater to the same vent pipe through the wall as the furnace, or no?

I don't want a million wall or roof penetrations.

-- Joe

anesthes is offline   Reply With Quote
Old 01-16-2012, 07:59 PM   #2
MarginallyQualified
 
Join Date: Dec 2011
Location: Winston-Salem NC
Posts: 3,650
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by anesthes View Post
I'm installing a direct vent propane furnace.
You have that backwards... Direct vent means a HOT metal flue pipe directly connected to the source of that heat... whether that goes out a wall or roof.

Quote:
I'd also like a propane water heater.
Can I tie (the flue of a gas burning appliance) to the same vent pipe (of another gas burning appliance) or no?
No. (There's a long sorta, maybe sometimes answer too... but it really doesn't apply here.)

Quote:
I don't want a million wall or roof penetrations.
How about just two?


Last edited by TarheelTerp; 01-16-2012 at 08:06 PM.
TarheelTerp is offline   Reply With Quote
Old 01-16-2012, 09:09 PM   #3
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,486
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by TarheelTerp View Post
You have that backwards... Direct vent means a HOT metal flue pipe directly connected to the source of that heat... whether that goes out a wall or roof.

No it doesn't. Direct vent can be PVC, or metal vent, depending if its Class I, II, III, or IV.

No. (There's a long sorta, maybe sometimes answer too... but it really doesn't apply here.)

How about just two?


OP. No you can't use the same vent pipe. it would effect the pressure switch of the unit that isn't running, and cause you no heat, and no hot water problems.
beenthere is offline   Reply With Quote
Old 01-16-2012, 09:49 PM   #4
011010100110111101100101
 
Join Date: Jan 2011
Posts: 240
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by TarheelTerp View Post
You have that backwards... Direct vent means a HOT metal flue pipe directly connected to the source of that heat... whether that goes out a wall or roof.
Hrmm. It says "direct vent" yet the manual says use PVC, and that it has a blower. (picture attached). ??


-- Joe
Attached Thumbnails
Direct vent propane furnace + water heater-vent.jpg  
anesthes is offline   Reply With Quote
Old 01-16-2012, 09:54 PM   #5
011010100110111101100101
 
Join Date: Jan 2011
Posts: 240
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by beenthere View Post
OP. No you can't use the same vent pipe. it would effect the pressure switch of the unit that isn't running, and cause you no heat, and no hot water problems.
I see. Oh well. Guess it will be 3 holes.

-- Joe
anesthes is offline   Reply With Quote
Old 01-17-2012, 04:11 AM   #6
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,486
Default

Direct vent propane furnace + water heater


You can use a concentric vent for the furnace. Its a larger hole, but only one hole for the furnace, and one for the water heater then.
beenthere is offline   Reply With Quote
Old 01-17-2012, 08:58 AM   #7
MarginallyQualified
 
Join Date: Dec 2011
Location: Winston-Salem NC
Posts: 3,650
Default

Direct vent propane furnace + water heater


At what point does the term POWERED get removed from the rest of the venting (and combustion) description?

Last edited by TarheelTerp; 01-17-2012 at 09:00 AM.
TarheelTerp is offline   Reply With Quote
Old 01-17-2012, 09:27 AM   #8
011010100110111101100101
 
Join Date: Jan 2011
Posts: 240
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by TarheelTerp View Post
At what point does the term POWERED get removed from the rest of the venting (and combustion) description?
Is that a question for me or the mfg ?

-- Joe
anesthes is offline   Reply With Quote
Old 01-17-2012, 09:41 AM   #9
MarginallyQualified
 
Join Date: Dec 2011
Location: Winston-Salem NC
Posts: 3,650
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by anesthes View Post
Is that a question for me or the mfg ?
LOL nah, I was just 'venting' I suppose.
TarheelTerp is offline   Reply With Quote
Old 01-17-2012, 04:56 PM   #10
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,486
Default

Direct vent propane furnace + water heater


The term "power venter" is sometimes used on some direct vent units. Basically, all direct vent units have a "power venter". But not all "power venters" are direct vent. You can add a "power venter" to an 80% furnace, and side wall vent it. but the vent must be metal then.

Inducer.
Blower.
Power Venter.
beenthere is offline   Reply With Quote
Old 01-17-2012, 05:32 PM   #11
011010100110111101100101
 
Join Date: Jan 2011
Posts: 240
Default

Direct vent propane furnace + water heater


Quote:
Originally Posted by beenthere View Post
The term "power venter" is sometimes used on some direct vent units. Basically, all direct vent units have a "power venter". But not all "power venters" are direct vent. You can add a "power venter" to an 80% furnace, and side wall vent it. but the vent must be metal then.

Inducer.
Blower.
Power Venter.
Learn something new every day. This furnace is 93.8% efficient. It's a propane unit. I bought the furnace, as well as the ac unit. Now I just need to learn how to properly install the ductwork. Perhaps I can pick up a book and get educated.

Thanks guys.

-- Joe

anesthes 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
No hot water at any faucet, water heater working fine rivercliff Plumbing 5 10-27-2011 09:47 AM
vent size for 40 gal gas water heater amakarevic HVAC 10 10-19-2011 06:15 PM
elevate electric water heater? crankbait09 Plumbing 18 04-18-2011 11:35 AM
Water Heater Vent Question pd417 Plumbing 1 05-15-2010 12:34 PM
Water heater drain mechanism (10 year old) guptaalok Plumbing 1 01-02-2009 05:40 AM




Top of Page | View New Posts

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