A FIREPLACE DAMPER, usually located in the throat of a masonry chimney just above the firebox, is a device that is meant to seal your fireplace shut when it is not in use. This is necessary so that heated air from your home will not escape up the chimney when the fireplace is not being used. An open or leaky damper can add hundreds of dollars a year to your heating costs.
Lock-Top’s rubber gasket seals tightly like a storm door for your fireplace, and keeps heating and cooling dollars where they should be…in your home. Lock-Top mounts on top of your chimney to keep out animals and rain. Lock-Top easily operates from inside your firebox and seals tight every time you close it-eliminating any draft.