Pellet Stoves Inserts - Convert Your Drafty Fireplace Into an Efficient Heating Source Pellet stoves can be placed inside your fireplace as a stand-alone heating source. They use compressed pellets that are made from wood byproducts, such as sawdust and can be highly efficient. They are also "green" because they https://www.fireplacesandstove.com/categories/pellet-stoves