Can anyone tell me if MetalFab type A triple wall galvanized pipe is still available? Because of a room addition our existing chimney has been moved a few feet and I need additional pipe to connect to my basement woodstove. Original pipe was installed I'm guessing in the late 70s. Now I'm struggling to find pipe to match what I have. New pipe wasn't in the original budget but I didn't know my current pipe might be obsolete. Any help is greatly appreciated!