Pellet Stoves Inserts - Convert Your Drafty Fireplace Into an Efficient Heating Source Pellet stoves are either free-standing heat sources, or fireplace inserts that are installed into your existing fireplace. They can be highly efficient and can burn compressed pellets that are made from wood byproducts such as sawdust. They https://www.fireplacesandstove.com/categories/pellet-stoves/2