DVLs double-wall, air-insulated design reduces clearances to combustibles from 18 inch to 6 inch, the closest clearance to a
wall of any connector pipe. DVL improves stove performance by maintaining high flue gas temperatures for a strong,
steady draft. Because the inner wall is stainless steel the flue heats up faster, stays hot longer, minimizes the formation
of creosote, and has the same life expectancy as the chimney. Adjustable lengths eliminate the need for cutting or
crimping
