I dropped a liner down my chimney and am installing the new tee. My Jotul is rear vented straight back into the tee using a Selkirk adjustable doublewall length (12 to 18") stovepipe. The new tee sits further back such that my adjustable stovepipe isn't long enough. I need another 6" to 8" to keep my clearances, but I can't find an adjustable doublewall stovepipe that is 24 or 26" long. Anybody know of such a product?