Pellet Stove Fireplace Pellet stove fireplaces are offered as freestanding models or installed into existing chimneys that burn wood to bring new life to old fireplaces that are drafty. They operate by using a thermostat to gauge the room temperature and feed pellets into the fire at the appropriate rate. https://www.fireplacesandstove.com/products/king-mini-pellet-stove-with-remote-2-200-sq-ft