We are chasing an exterior wall, clay flue masonry chimney with insulated 6" single wall SS pipe for a Jotul Oslo that will be rear vented.
Measured from the cleanout tee, I only have 13' to the top of the clay liner sticking out above the crown where the plate and cap would be.
I have seen the Extend A Chimney equipment and similar setups, but I was wondering if there is just a top plate that the single wall can terminate into and a 2-3' peice of insulated double wall can be added to for a flue height of 15-16'? I assume this arrangement will keep the inspector happy instead of having 2-3' of single wall hanging out up yonder.
The chimney already meets the 10-3-2 rule (low roof pitch), but since the top layers of brick are deteriorating we are going to have them repaired this coming spring/summer and will have the masonry height brought up to the functional flue height. We would then just add new single wall to complete the project. The double wall would not go to waste, as I am going to eventually need it for when I put a stove in the shop.
Measured from the cleanout tee, I only have 13' to the top of the clay liner sticking out above the crown where the plate and cap would be.
I have seen the Extend A Chimney equipment and similar setups, but I was wondering if there is just a top plate that the single wall can terminate into and a 2-3' peice of insulated double wall can be added to for a flue height of 15-16'? I assume this arrangement will keep the inspector happy instead of having 2-3' of single wall hanging out up yonder.
The chimney already meets the 10-3-2 rule (low roof pitch), but since the top layers of brick are deteriorating we are going to have them repaired this coming spring/summer and will have the masonry height brought up to the functional flue height. We would then just add new single wall to complete the project. The double wall would not go to waste, as I am going to eventually need it for when I put a stove in the shop.