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Chimney & Fireplaces/Flue Damper problem on Heatilator


Hi Randy,

I have a Heatilator EC36 wood burning insert which was installed
in 2000.  Recently I've been having a problem with the flue damper when I attempt to close it.  For some reason it just falls back to the center position everytime I try and close it.  Conversely its not a problem when I have it in the open position and it stays snuggly in this position.  Does this sound like I need to get a new damper or is this potentially a fixable item that I can replace ? My recent chimney sweep said he couldnt help me with it and that I would need to have a Heatilator service guy check it out.  I'd like to save the cost of a service call if its a DIY fix and/or repair.


This does sound simple. Give the damper handle a good look as you open and close it. Sometimes there is a retention piece you may not be engaging or simply not moving it far enough. If you can't find it, call a CSIA certified sweep to inspect your system. It does sound simple though.
Good luck!

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Randy Brooks


Inspection of Masonry, Pre-cast Tilt-up, and Factory Built Fireplaces as well as Free Standing & Insert, Gas, and Wood Appliances. We also provide Hearth Fire Loss Investigations, Litigation Support, Consulting Services, Flue Sweeping, Installation and Repair. Additionally, I’ve been a chimney sweep for 23 years, service and install hearth appliances as well as being recognized by the Superior Court of California as an expert witness.


Brooks Chimney Sweeping Since 1989 Ojai, CA Owner / President

NCSG, MEMBER,(National Chimney Sweep Guild), Member since 1990, Board of Directors representing Region 6, (CA, NV, AZ, UT, OR, WA, ID, WY, MT, AK and HI,) 2004-2011, ethics committee chair, 2004-2005, executive committee member, Vice President, 2006-2008, President, 2008-2011. CSIA, BOD (Chimney Safety Institute of America,) Board of Directors, ethics committee chair, 2004-2005, executive committee member, Secretary, 2005-2006, Vice President, 2006-2008, President, 2008-2011. HPBA, MEMBER, (Hearth, Patio, & BBQ Association,) since 2002. NFPA Member, (National Fire Protection Association) Since 2009. Technical Committee member for the 211 Standard.

California State Licensed Contractor, C61-D34, #750710. C.S.I.A., (Chimney Safety Institute of America,) Certified Chimney Sweep, #2580. Held since 1990 re-certified in ‘93, ‘96, ‘99, ‘02, ‘05, '08,'11,'14. F.I.R.E. (Fireplace Investigation, Research & Education Service,) Certified Inspector, #FP-006. Held since 2000, re-certified in ’03, ‘06, '09, '12, '15. Fireplace Investigation, Research & Education Service,) Advance Expert Consulting & Witness, certificate, ’05 N.F.I. (National Fireplace Institute,) Certified Gas & Wood-Burning Specialist, #133851. Held since 2002, re-certified in '05,‘08,'11,'14

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