In order to (hopefully) improve the draft of my short chimney (12' high from thimble) I'm thinking of adding 2 to 4 feet of insulated chimney to the top of my 5" SS Rigid Liner. What is the best way to do this? Is there an adaptor that can be used to connect the liner to the Class A pipe and what would be the best way to insulate the short section of liner that extends outside the clay tile?
Also, how high can I extend the the chimney with Class A without having to provide support for the Class A section?
I've included a picture of my chimney that was taken before it was lined (I took a more recent pic but left the camera at home!).
The reason I'd like to extend the chimney height is to help improve the draft when it is a little 'warmer' outside. The chimney drafts okay when it's cold out, but is a little sluggish when it's a bit warmer out...more difficult to start and some smoke spillage when opening the door to reload.
Thank you for your help and advice.
Also, how high can I extend the the chimney with Class A without having to provide support for the Class A section?
I've included a picture of my chimney that was taken before it was lined (I took a more recent pic but left the camera at home!).
The reason I'd like to extend the chimney height is to help improve the draft when it is a little 'warmer' outside. The chimney drafts okay when it's cold out, but is a little sluggish when it's a bit warmer out...more difficult to start and some smoke spillage when opening the door to reload.
Thank you for your help and advice.