Pellet Stove Fireplace Pellet stove fireplaces are offered as freestanding models or installed in existing chimneys that burn wood to bring new life to old, drafty fireplaces. They operate by using a thermostat to determine the temperature of the room and then feed pellets into fire at the appropriate rate. https://www.fireplacesandstove.com/products/wifi-enabled-large-pellet-stove-by-mr-heater