Expert: Richard Taylor, AIA - 11/20/2005

Question
I've recently been given an older insert for my fireplace. After manhandling the thing home, I find that chimney cleaners are telling me that I need a liner for my chimney (and they'll do it for $2000.00!). I'm having a hard time justifying a "free" insert for $2000! Is a liner necessary or does it just improve the efficiency of the insert? Can I install the insert now and add a liner later?

BTW - I have a single story home with a brick fireplace essentially located outside of the house. If it helps, the insert in an Aurora brand - from what I hear is an excellent product.

Thanks - Dave

Answer
Hi Dave - thanks for your question!

I assume you've talked to several sweeps and have the same number from each.

The flue liner is for safety.  Many fires in older homes start with bad chimneys.  A small opening in a flue can allow sparks into concealed areas where they can smolder for hours.

Older chimneys also have creosote buildup which is also a fire risk.  A liner will eliminate that problem.

Depending upon the type of insert you have, a flue liner may be required.  The top of the firebox and smoke chamber assembly must have a tight fit with the flue.  If that can't be done with the existing flue, a fitted liner will be required.  Check the manufacturer's info - that should settle it for you.

Hope this helps!

Richard Taylor, AIA
Richard Taylor Architects, LLC
www.rtastudio.com
www.betterhomedesign.blogspot.com