PelletVent is a venting system for stoves and inserts that use multi-fuels (including wood pellets, corn, cherry pits, switch grass, coffee husks, walnut shells, soybeans, wheat, sunflower hulls, rapeseed, and sugar beets) or oil fuel. The DuraVent PelletVent 45? Elbow allows the installer to move the vent around an obstruction such as a rafter and swivels 360? at the base for easy alignment. Simple to install with twist-lock connectors, the double-wall air-insulated design and factory sealed seams provide you with exceptional performance and long-lasting, reliable use.