DuraVent DuraTech 6" x 60" Galvalume Double-Wall All-Fuel Chimney Pipe With Protective Carton Filler btu682 200 BTU/h (4

200 BTU/h (4

3 kW) Average overall efficiency  62

The Gravity Wall Furnace offers total comfort for a fraction of the cost of electric heat

a 25% restocking fee will be applied upon refund

and corners

DuraVent DuraTech 6" x 60" Galvalume Double-Wall All-Fuel Chimney Pipe With Protective Carton Filler btu682 200 BTU/h (4With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool, while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys for an extra margin of safety. No locking bands or mechanical fasteners required. DuraTechs sleek 1" wall design provides for easy installations through 16" on