|
| Author |
Message |
rockies
Member
|
# Posted: 4 Feb 2017 19:31 - Edited by: rockies
Reply
I was reading an article about metal manufactured chimneys on the Green Building Advisor website and found a link to a recommended product.
According to US fire safety tests a metal chimney is required to endure three 10 minute chimney fires at 2100 degrees F without failing in order for it to be certified.
The Canadian standard is for the metal chimney to endure three 30 minute chimney fires at 2100 degrees F.
I was intrigued by this companies statement that "their make of metal chimney was the only one on the market that had passed the Canadian standard".
http://icc-chimney.com/en/excel#mc
http://icc-chimney.com/en/excel-technical-information#mc
|
|
MtnDon
Member
|
# Posted: 4 Feb 2017 19:37 - Edited by: MtnDon
Reply
Quoting: rockies I was intrigued by this companies statement that "their make of metal chimney was the only one on the market that had passed the Canadian standard".
Don't know about that. Look here....
This is what Selkirk states on that link: "Safety tested and listed to multiple UL standards, signifying compliance with U.S. and Canadian codes (UL 103HT, 641, 2561; ULC C959) "
|
|
bldginsp
Member
|
# Posted: 4 Feb 2017 21:54
Reply
Excel only states that theirs is the only one inch wall thickness chimney to pass the Canadian standard. They claim to have a special insulation.
But a quick look at Duravent Duratech specs shows that it has a one inch wall and it passes ULC S604. Excel claims to be testing to ULC S629, a different standard. Could be that the Excel meets a higher standard, but does it have to meet that standard to be sold in Canada? When or why is the higher standard required or desirable if a lower standard is allowed?
|
|
MtnDon
Member
|
# Posted: 4 Feb 2017 23:28 - Edited by: MtnDon
Reply
S604 = These requirements apply to Factory-Built Type 'A' Chimneys which do not require field fabrication. They are for use with gas and liquid fuel-fired residential appliances and building heating equipment, where the appliance or equipment flue-gas temperatures do not exceed 540 degrees C.
S629 = Covers requirements for Factory-Built Chimney assemblies which do not require field fabrication. They are for use with gas, liquid and solid fuel-fired residential appliances and building heating equipment, where the flue-gas temperatures normally do not exceed 650 degrees C.
|
|
MtnDon
Member
|
# Posted: 4 Feb 2017 23:38 - Edited by: MtnDon
Reply
So maybe I picked a bad example, or the wrong model or whatever. I am quite certain my brother in law told me they used a Selkirk chimney on their wood burning fireplace last summer at their cabin in Manitoba. There were multiple inspections throughout the project. It sticks in my mind because he lives in Winnipeg where we both grew up and Selkirk started there decades ago. My first wood stove chimney was one of theirs. Alas, the Canadian plant is now in Ontario.
|
|
rockies
Member
|
# Posted: 5 Feb 2017 18:15
Reply
I think the real benefit is that the Excel chimney will withstand a 30 minute chimney fire with internal temperatures approaching 2100 degrees F. I think a lot of people are told when they buy the chimney for their wood stove that "It will withstand a chimney fire" but might not know that it will survive for only 10 minutes. I'd rather have three times the protection.
|
|
KinAlberta
Member
|
# Posted: 5 Feb 2017 20:10 - Edited by: KinAlberta
Reply
Does stainless steel surpass them all? I can't recall the details but I was in a stove shop a few years ago and the owner was talking up the stainless as the safest
|
|
|
