Pellet Stove Fireplace Pellet stove fireplaces are available as freestanding models and can also be installed into existing chimneys burning wood to bring new life to old fireplaces that are drafty. They work by using a thermostat to gauge the room temperature and then feed pellets into the fire at https://www.fireplacesandstove.com/products/us-stove-5040-compact-pellet-stove