Metal-Fab flexible connector has been designed to properly connect Category I gas-burning appliances to listed chimney-lining systems or listed Type-B gas vent. Category I appliances operate with a non-positive vent static pressure and with a vent temperature that avoids excessive condensate production in the vent. Appliances burning solid or liquid fuels, or category II,III, or IV furnaces, are not to be connected to this flex connector.
Metal-Fab product may be installed in an unenclosed space between the appliance and the listed masonry chimney system or Type-B gas vent. This flexible connector must not pass through any combustible structure such as a wall, ceiling, floor, attic space, or crawl space. Contact local building or fire officials about restrictions and installations in your area.
Features:
- 2-Ply aluminum flex
- Twist lock B-vent male connection
- Stainless steel single wall connection
- Use of the MLCK flexible connector eliminates the need to cut, crimp, or screw-fasten sections of rigid single wall connector
- Simply pre-stretch the MLCK connector to the desired length (up to 5') and install between appliance and inlet to Type B gas vent
- MLCK connector is UL listed
- Not designed to be enclosed
- Not designed to pass through a combustible area
- Must be installed in compliance with applicable clearance to combustibles
- Not listed for use in Canada