Clean burning exterior retrofit system for solid fuel heating ap

Combined chimney cover and damper

Controlling the damping of flues

Counterweight static pressure-air flow damper assembly

Damper

Damper

Damper adjusting mechanism

Damper assembly

Damper assembly for barbecue grill

Damper assembly for high temperature or corrosive gases

Damper clip extension

Damper construction and a method of cooling a damper

Damper control

Damper control

Damper system

Device for generating an electric output signal in response to t

Device in flue gas dampers

Draft air secondary combustion apparatus for stoves

Draft control system and method for heating systems

Draft hood and damper assembly for fuel fired heating apparatus