Black Iron Grease Duct

Captiveaire s single wall double wall grease duct are factory welded for ease of installation and superior performance to traditional site welded ductwork.

Black iron grease duct.

Grease duct is ideal for use in kitchen ventilation applications where clearance to combustibles and temperature retention in the duct is not a factor. Advantages of factory built grease ducts vs. In addition these requirements evaluate the effectiveness of the combination of the grease duct and the enclosure as a fi re rated system and as a thorough penetration fi restop system. Grease duct is etl listed single wall construction made from stainless steel.

At airside sheet metal fabricators inc. We take special pride in fabricating this type of ductwork knowing the safety requirements and hazards in venting these types of fumes. System needs to be engineered. Single wall grease duct is etl listed to ul standard 1978 grease ducts and can ulc s662.

Whatever a project needs airside can help you meet your ductwork and metal fabrication needs. Clearance reduction is accomplished with fyrewrap insulation or fire chase. Welded black iron grease ducts started with field wrapped welded black iron and transitioned to factory built where head room opened up advantages of factory built grease ducts vs. Clearances are 18 from combustibles and 3 from gypsum.

Black iron welded grease duct custom fabricated for a kitchen hood. Grease duct is 16 gauge black iron or 18 gauge stainless steel no screws all seams welded liquidtite. It also measures the enclosure s effect on the grease duct. Ul 1978 listed easy to install sandwich design with no special tools required.

Duct diameters range from 8 to 24 with multiple lengths and accessories available. 10 x 6 ductmate ultimate access door black iron sandwich access door for grease duct or high temperature applications. Welded black iron grease duct is designed and created to vent grease laden vapors from commercial cooking equipment to outside the building safely. Space restrictions required this exhaust duct to be rolled and welded looking much like the flat oval spiral ductwork airside manufactures.

Preferred design the rectangular on site welded grease duct remains the. Double wall grease duct is etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies.