Pellet Stove Fireplace Pellet stove fireplaces are available as freestanding models, or they can be installed into existing wood burning chimneys to breathe new life into old fireplaces that are drafty. They function by using a thermostat to measure the temperature of the room and then feed pellets into fireplace https://www.fireplacesandstove.com/products/castle-serenity-12327-wood-pellet-stove-with-control