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 09-26-2011, 11:07 AM   #1
Member
 
Join Date: Apr 2007
Posts: 2,283
Rewards Points: 1,014
Question

how critical is that type-B vent fittings lock together


type-B fittings are far from perfect -- sometimes they bend and deform in shipping and they won't click/lock male to female.

i was wondering how absolutely critical is that they click, if they do hold in place nonetheless. e.g. i have a tee and an elbow below it on the bottom of a 16 ft chimney liner. the opening was really tight to fit the tee/elbow composition in and we had to set it in before sliding the chimney liner down. once we slid it down, we finagled a little to get the sleeve female to fit onto the tee male and finally got it in but there was not much we could do it to get it to lock. but the joint is firm because there is the weight of 16 ft of vertical liner + chimney cap above it so it's not going anywhere but was wondering if this may present a leak or something.

the chimney is used for a gas water heater and a gas radiator boiler.

amakarevic is offline   Reply With Quote
Old 09-26-2011, 05:36 PM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,567
Rewards Points: 2,814
Default

how critical is that type-B vent fittings lock together


Good question. Now if only some one can come along with a good answer.

beenthere is offline   Reply With Quote
Old 09-26-2011, 07:42 PM   #3
Member
 
Join Date: Aug 2011
Posts: 729
Rewards Points: 500
Default

how critical is that type-B vent fittings lock together


I would think that a good fit would be critical. An air gap in the fittings would let the vent gas run along the outer wall of the pipe. A lot of combustible clearances are not paid attention to because of the double wall construction. Any joint not locked in properly may cause the pipe the be a single wall, and a fire danger.
Master of Cold is offline   Reply With Quote
Old 09-27-2011, 06:15 AM   #4
Member
 
Join Date: Mar 2010
Location: PENNSYLVANIA
Posts: 2,238
Rewards Points: 1,004
Default

how critical is that type-B vent fittings lock together


Maybe you can use a little dish soap with water and a brush once it's together the soap and water will dry up soon after that and not effect the vent. I would say locked tight because it's such an important item regarding life and safety.
COLDIRON is offline   Reply With Quote
Old 09-27-2011, 06:39 AM   #5
Member
 
Join Date: Apr 2007
Posts: 2,283
Rewards Points: 1,014
Default

how critical is that type-B vent fittings lock together


the male IS inside the female, it just won't lock. it's not like it's half way in or there is a crack in the joint or something...
amakarevic is offline   Reply With Quote
Old 09-27-2011, 07:38 AM   #6
Member
 
Join Date: May 2011
Location: OK
Posts: 218
Rewards Points: 150
Default

how critical is that type-B vent fittings lock together


Over time expansion and contraction could cause the fittings to seperate creating a very unsafe situation. If locked that won't happen.
josall is offline   Reply With Quote
Old 09-27-2011, 08:05 AM   #7
Member
 
Join Date: Mar 2010
Location: PENNSYLVANIA
Posts: 2,238
Rewards Points: 1,004
Default

how critical is that type-B vent fittings lock together


If you have to screws and metal tape.
COLDIRON is offline   Reply With Quote
Old 09-27-2011, 05:18 PM   #8
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000
Default

how critical is that type-B vent fittings lock together


Take some bricks out for better access. One guy on the roof turning the pipe and the other holding tight from below. If that doesn't work then the joint will need to be screwed in 3 places to keep it secure.

Marty S. is offline   Reply With Quote
The Following User Says Thank You to Marty S. For This Useful Post:
amakarevic (09-27-2011)
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
Frozen Vent Pipe Ratchye Plumbing 40 12-27-2013 12:00 PM
Type B Vent Question NGuy HVAC 4 08-08-2008 08:04 PM
Microhood vent location, diameter, duct type? pcampbell Appliances 6 03-20-2008 06:07 PM
Bathroom Vent Not Vented to Outside / Would need to vent through flat roof House_Amuck HVAC 5 03-30-2007 09:57 AM




Top of Page | View New Posts

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