Jerry Simon 38 Posted March 2, 2019 Report Share Posted March 2, 2019 What is this lever for on the left side of this gas-log fireplace? I don't think it's a damper control, but maybe an intake-air control??? Quote Link to post Share on other sites
BADAIR 15 Posted March 2, 2019 Report Share Posted March 2, 2019 (edited) yes Jerry damper control lever for combustion/draft fresh air should have been a damper-less screened vent at or above on the adjacent exterior wall Edited March 2, 2019 by BADAIR Quote Link to post Share on other sites
Erby 41 Posted March 28, 2019 Report Share Posted March 28, 2019 They're usually marked for open and closed positions, at least around here. Quote Link to post Share on other sites
Justin 0 Posted December 17, 2020 Report Share Posted December 17, 2020 I have the exact same fireplace! Which position is open and closed? I just bought this house and the level arm is in the upright position. Its kinda drafty now with winter setting in and I'm questioning if its open or not. Quote Link to post Share on other sites
Erby 41 Posted December 19, 2020 Report Share Posted December 19, 2020 Go outside and look at the damper on the side of the chimney. Quote Link to post Share on other sites
Joe Gemperline 0 Posted January 27 Report Share Posted January 27 I'm no expert but think I'm certain the advice you've been given is not exactly correct. I have a Marco fireplace installed 25 years ago. The manual clearly shows that the lever you are referring to (on the side, not above your logs) is actually not a damper control lever but an outside air control lever which you should open before starting a fire in addition to opening your damper (doesn't matter whether your fireplace has a gas insert or not). This air control lever is an optional accessory which provides combustion air from outside the dwelling and improves fireplace efficiency. The damper, on the other hand, is a necessity for getting the smoke and carbon monoxide to exit up the chimney versus back into your home. It of course should be opened before you start a fire and until the fire is out. My understanding is you can (and should) at least leave the outside air intake lever in the open position if you want to close your damper and fireplace dooors once your fire is out but is still hot with glowing embers. Quote Link to post Share on other sites
Bill Kibbel 82 Posted January 28 Report Share Posted January 28 Joe, reread the other replies. They're clearly discussing the lever is for the combustion air damper, not the damper in the flue. Quote Link to post Share on other sites
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