Twin wall straight length, wood boiler flue 440mm, 7 inch, 180mm

Twin wall straight length, wood boiler flue 440mm, 7 inch, 180mm Connecting straight length, 440mm total length. Material - polished stainless steel Mass - 5.9kg Requires locking bands. Class 1 twin wall insulated stainless steel flue system. 30mm of Rockwool insulation. 40mm overlap Designed for condensing and dry applications (Condensing application requires use of a joint seal for each junction.) Used for domestic heating, domestic hot water, industrial/commercial heating, biomass boilers, open fires, bakery ovens. Use with gas, diesel, solid fuel, biofuel. Other sizes available and pieces available If you have any questions about this or any other product, don't hesitate to get in touch.