Flue opening too small for chimney liner?

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
  • Super Cedar firestarters 30% discount Use code Hearth2024 Click here

Jackie_Cupples

New Member
Dec 28, 2023
7
Oregon
Hi all, I'm interested in putting a Regency Ci2700 fireplace insert in to my existing masonry fireplace. Had the installers come out to take a look first and it turns out my flue opening is ~4" and evidently they need ~6" for the chimney liner. What are my options? Another vendor said that you can "chip out" some of the bricks to accommodate the chimney liner. Is this advisable? Thanks!
 
Where is the restriction? At the damper plate?
 
Yes, not a great picture, but here's the shot looking up at the damper.

[Hearth.com] Flue opening too small for chimney liner?
 
The damper can be cut out or removed to clear the liner.
 
Thank you. Does this need to involve a masonry professional? The installer said this is not something they would undertake.
Find a different installer this is commonplace for insert installs.