Chimney Length for Lopi Declaration

[Stax]

The length of my one story chimney is 12 ft to the damper, 14 ft to the opening of the top of my fireplace, or connection to wood buring insert. The Lopi Declaration requires 15 feet of liner. I would assume the liner would need to be extended another foot or two out of the top of my chimney. Is this feasible and if so, how is it accomplished? Would a combination of liner types (rigid/flex) need to be used and where?

When I stick my head into the fireplace and look up the flue, I believe there is a slight bend around the damper area. I could be wrong, I have to look again. I should know this already as my head has been in there several times.

 

[DAKSY]

Try it with the 14 ft of liner to see how it performs.
You can add on later if you need to.

 

[budman]

Mine is only 14 feet and no problem for the past five years.

 

[Stax]

The manual, as well as stove shop and installers require the liner to be 15 feet for this particular unit. Would it not be code then?

 

[budman]

You are over thinking this whole install,just put it in and stay warm.

 

[Stax]

Budman:

I appreciate your feedback, but I want to be knowledgable regarding the whole process. I'm spending thousands of dollars here. I want a good unit and for it to be installed properly and up to code. You can over think, but you can't be over informed.