Double Wall Chimney Stove Pipe & Components
The clearance to combustible materials for double wall stove pipe, such as standard drywall or wood, is 6". Clearance to non-combustible materials is 0", but pipes should not actually touch cement, bricks or other non-combustibles.
Rockford's double wall chimney pipe has a limited lifetime warranty. It is manufactured with a 24 gauge black steel outer pipe and a .015", 430 alloy stainless inner liner. The double wall construction keeps the outside cooler and thus allows you to reduce both wall and ceiling clearances.