1. Welcome Hearth.com Guests and Visitors - Please enjoy our forums!
    Hearth.com GOLD Sponsors who help bring the site content to you:
    Hearthstone Soapstone and Cast-Iron stoves( Wood, Gas or Pellet Stoves and Inserts)
    Caluwe - Passion for Fire and Water ( Pellet and Wood Hydronic and Space Heating)

Is my chimney too short for a 5.5" liner?

Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by sbeausol, Dec 3, 2012.

  1. sbeausol

    sbeausol New Member

    Joined:
    Nov 28, 2012
    Messages:
    4
    For those interested in pics, I have some of my chimney here:
    http://www.hearth.com/talk/threads/feedback-on-c450-insert-install.99803/

    I was up on the roof and measured my flue before I get a SS liner for the installation of a Jotul C450 insert. It is tight - probably 7x11. The stove has a 6" connection. My chimney is 14'8" from the top of chimney to bottom of fire place. The stove is 22" tall, so the effective height would be around 12'10". I'm worried that the 6" liner won't fit so I have two options - ovalized 6" or 5.5". Can anyone comment on if I can get away with a 5.5"? Can I make the 6" work?

    Any input is greatly appreciated!

    Helpful Sponsor Ads!





  2. chimneylinerjames

    chimneylinerjames Feeling the Heat

    Joined:
    Nov 26, 2012
    Messages:
    372
    Tough call. They do make a smooth inner wall 5.5" chimney liner. That would increase draft some. If your flue is a true 7" inside you could use a 5.5" liner and 1/2" insulation giving you total diameter of 6.75". That would be tight but doable. If you have any doubts about that use the 1/4" insulation.

    I think the better of the 2 options here is keeping the liner round. My vote is for the 5.5"
  3. Ablaze Tech

    Ablaze Tech New Member

    Joined:
    Nov 24, 2012
    Messages:
    21
    Loc:
    Neenah, WI
    Knock out the flue tiles and you will have lots of room to drop an insulated 6. The more room you give yourself the less you will struggle installing the liner.
    chimneylinerjames likes this.
  4. Ablaze Tech

    Ablaze Tech New Member

    Joined:
    Nov 24, 2012
    Messages:
    21
    Loc:
    Neenah, WI
    Knocking out tiles if professionally done should run about $300 and should take 1 to 2 hours.

Share This Page