FireRock 36" Cast Iron Damper protection-plan Starts automatically when surface temperature

Starts automatically when surface temperature of stove reaches around 149 F

Diameter 8" Material 316L Stainless Steel

What causes this and how can it be controlled

GT-Xview HD LED Multi-Flame System – Ultra-realistic flames with depth and natural movement

your Empire Log Set complements the burner pattern for a lifelike fire

FireRock 36" Cast Iron Damper protection-plan Starts automatically when surface temperatureMade to seal chimneys when fires are out so the cold air doesnt come in, this important element of a high functioning fireplace comes in three different types: cast iron, top seal, and anchor plate with damper. Important to note about our dampers is: Cast Iron Dampers can be used for all fireboxes with the exception of our 72 conventional, which requires two top seal dampers; and our See Through models, regardless if using masonry or metal flue. Top