New Guy, Class A Temperature Question

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pyromedic

New Member
Nov 29, 2013
1
NC
Hi All, I hope everyone had a great Thanksgiving.
I've searched the Forum in an attempt to get an answer to my question but really didn't find what I was looking for so I'll ask here.
My wife and I are building a new home and have purchased a Jotul F 500 wood stove. I installed a double wall Class A chimney through a chase and when I installed the storm collar used a product called Lexel to seal it since I had it on hand and it is superior to silicone for sealing and adhesion. It is a polyurethane based product. Later, I looked at the specifications for the product and learned that it should not be used where temperatures exceed 200 degrees F. Too late smart I guess.
http://www.sashco.com/hi/lexel.html
So, here is the question: what temperature can I expect the outside of the double wall chimney pipe to reach at the storm collar, approximately 25 feet above the stove? Is a sealant that can withstand only 200 degrees F sufficient?
Thank you for your responses in advance.
 
I've used regular silicone with no issues. I figure if the outside of the pipe up top gets hot enough to mess with the storm collae seal, that's the least of my worries...
 
Welcome to the forum pyromedic.

I doubt if you'll have a problem but if you do, it won't be difficult to fix.
 
Welcome to the forums! I wouldn't worry about it. Rick
 
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