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 Fixed Horizontal Chimney Cap provides long-lasting performance, durability and reliability with its double-wall air-insulated design, factory-sealed seams and corrosion-resistant stainless steel construction. Designed to terminate a 4 in. Dia and horizontally-vented wood pellet-burning stove, this chimney cap has a built-in swivel case for easy alignment, is easy to install and easy to use. Material: Galvanized Steel.