Pellet Stove Fireplace Pellet stove fireplaces are freestanding models or can be installed into existing chimneys that burn wood which can give new life to 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/us-stove-non-electric-pellet-stove-60-lbs-hopper