#40: I Have a Fireplace with a Twist-Knob on the Face of the Fireplace. How Do I Plug the Flue?

Vestal damper with worm gear actuator

40-1: Open Worm Gear Twist-Knob Damper

Closed Vestal damper with worm gear actuator

40-2: Closed Worm Gear Twist-Knob Damper

Twist knob to open damper

40-3: Twist Knob on the Lintel Face

Twist handle damper

40-4: Inner Lip of the Lintel

Measure fireplace lintel below damper

40-5: Vertical Measurement from the Damper to the Bottom of the Lintel

Open Long twist knob damper

40-6: Larger Open Worm Gear Twist-Knob Damper with High Flue Tile

where to measure for a flueblocker

40-7: Where to Measure for a Flublocker

40-8: Chimney Balloon in Flue Tile