Im about 2 1/4 inches from coming straight into my insert and i have about 17" from the flue damper opening to the top of my insert to complete a 2" 1/4 offset. If i were to hand bend to 15 degree bends roughly 8 1/2 inches apart it could work but id probably have to bend it before it goes down the chimney. The terra cotta tiles are just about 11 inches i.d. Or can it be wrestled in the firebox to get 2 inches? Am i talking crazy? Or should i just order a 15 degree fitting and call it good.