Pellet Stove Fireplace Pellet stove fireplaces are offered as freestanding models or placed in existing chimneys burning wood to bring new life to old fireplaces that are drafty. They work with a thermostat that determine the temperature of the room and feed pellets into the fireplace at the right time. https://www.fireplacesandstove.com/products/pelpro-pp70-high-efficiency-pellet-stove-42-500-btu