DuraVent DVL Double-Wall Black Pipe

Used in a typical venting installation. Designed for installation with minimum clearance to combustibles (6? to walls, 8? from top of horizontal run to ceiling). Reduces clearances to combustibles from 18? to 6?. Because the inner wall is stainless steel the flue heats up faster, stays hotlonger, minimizes the formation of creosote, and has the same life expectancy as the chimney.