PelletVent is a complete venting system from DuraVent for stoves and inserts that use oil fuel or multi-fuels (including wood pellets, corn, cherry pits, switch grass, coffee husks, walnut shells, soybeans, wheat, sunflower hulls, rapeseed and sugar beets). The 3 inch storm collar helps prevent water leakage in the home by deflecting rain and moisture from the vent pipe. Designed for use with a 3 inch round vent pipe, the storm collar seals securely with silicone (sold separately) to ensure reliable, lasting performance. For added durability, PelletVent seams are factory-sealed on all elbows, tees and fittings.