Pellet Stove Fireplace Pellet stove fireplaces are available as freestanding models and can also be placed in existing wood burning chimneys to bring new life to old fireplaces that are drafty. They function with a thermostat that determine the temperature of the room and then feed pellets into the fire https://www.fireplacesandstove.com/products/castle-serenity-pellet-stove-with-smart-control