Does a chimney need a liner when clay deteriorated?


  #1  
Old 10-20-13, 03:19 PM
L
Member
Thread Starter
Join Date: Dec 2010
Location: usa
Posts: 42
Received 0 Votes on 0 Posts
Does a chimney need a liner when clay deteriorated?

Hi,
I have a very old interior brick chimney for natural gas-fired boiler. A chimney contractor who cleaned it for me said he saw just some remaining spots with clay, but most of chimeny left with just brick. He said I need to install a liner. Just wanted to double check if it is indeed needed?
I do see a normal draft when I check, and my carbon monoxide detectors never activated.
Thanx.
 
  #2  
Old 10-20-13, 04:21 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Received 7 Votes on 6 Posts
With just brick and no liner, not even clay, I would opt for a stainless liner.
 
  #3  
Old 10-21-13, 01:17 PM
L
Member
Thread Starter
Join Date: Dec 2010
Location: usa
Posts: 42
Received 0 Votes on 0 Posts
Chandler,
Thank you for the reply.
My chimney contractor said my chimney can fit 6"D steel liner (maybe 7"D maximum), but my boiler vent diamater is 8" and its manual recommends likewise 8" chimney. Is it a problem if the new liner diamater will be lesser than the boiler vent?
 
  #4  
Old 10-21-13, 01:30 PM
S
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,635
Received 98 Votes on 86 Posts
Not my area but I would think going with a smaller diameter than the manual indicates would be a bad idea.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: