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Manual Fireplace Damper

The MFD-S Manual Fireplace Damper for solid fuel prevents excess heat from escaping through the chimney when the fireplace is not in use, and prevents backdraft down the chimney. It is designed for chimney top installations.

The MFD-S is a manualy operated and gravity activated fireplace damper for round chimneys. Although it is designed to support and function with an ENERVEX chimney fan, it works equally well without it. It can be used as a replacement for worn-out, zero clearance fireplace dampers.

The damper is operated with a pull chain and handle (included) mounted in the fireplace. 

The MFD-S is designed for chimney top installations and is rated for temperatures up to 1400°F (760°C).


  • Saves energy
  • Easily operated via a pull chain
  • No power required
  • Fits most round standard chimneys


Material Stainless Steel 316L
Available Sizes 6
Warranty 2-year Factory Warranty
MFD-S Manual Fireplace Damper—used in a combined fan and damper system for use with solid-fuel applications
RSHT Chimney Fan—high-temperature exhaust fan used in venting solid-fuel fireplaces, BBQs, pizza ovens and stoves
Chimney Fan - HT

This chimney fan is the guaranteed cure for smoke escaping your wood-fired fireplace, or wood, pellet or coal appliances.