Increaser used to increase 5 inch twin wall to 6 inch twin wall.
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.
- Laser welded joints
- Requires a locking band