The Stainless Steel Shelter chimney cover is the durable and economic choice for chimneys anywhere oil or coal is burned or where wood is the primary source of heat. Stainless is also necessary for applications within 25 miles of a saltwater coast. The outside mounting design provides maximum free air space and better draft while the attractive powder coat finish helps it stand up to the elements. Made with a 24 gauge stainless steel hood with scalloped corners and roll-formed edges, 18 gauge _" expanded stainless steel mesh and 16 gauge stainless steel base and slotted hex-head bolts. Seven year limited warranty.