Duravent elbow reuse won't adjust.

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Wyelkhunter

Member
Feb 24, 2019
1
Wyoming
I'm repositioning my pellet stove.
I'm attempting to re-use the 3" Duravent elbows but I can't get it to adjust.
Is it perhaps because of carbon buildup in the joints, or are they designed to seal once heated?
Pricy little things. I'd just go buy a new one, but their not available in my town. Nearest possible store is 50 miles away.