The Benefits of a Ventless Pellet Stove Pellet stoves generate heat by using pellets made from repurposed wood byproducts. They emit little or no CO2. They're green because they burn byproducts of renewable sources and consume less energy than wood or gas stoves. You'll have to ventilate your pellet stove https://fireplacecanada43198.shotblogs.com/10-amazing-graphics-about-good-pellet-stoves-44452325