ETL Listed to UL 2221 / ULC S144 – Zero Clearance Round and Rectangular Grease Duct

Per NFPA 96, Chapter 4, Section 4.3.3.1: “Factory-built grease duct protection system shall be listed in accordance with UL 2221”

Rectangular

GRZ – rectangular grease duct listed to UL 2221 / ULC S144 for zero-clearance applications. The model GRZ is also a 2-hour fire-rated duct.

Round

GZ – grease ducts are suitable for the removal of smoke and grease-laden vapors from commercial, industrial, institutional, and similar cooking applications. It is listed grease duct to UL 2221 / ULC S144 for zero-clearance applications.

Van-Packer Grease Ducts

Rectangular

GRM – rectangular double-wall grease ducts are listed by UL as reduced clearance (2” to 17″) to combustibles “Grease Duct Assembly” and as “Grease Ducts for Restaurant Cooking Appliances” and has been tested in accordance with the procedures and methods set forth by UL 1978 / ULC S662
GRS – rectangular single wall grease ducts are listed by UL as 18″ clearance to combustibles “Grease Duct Assembly” and as “Grease Ducts for Restaurant Cooking Appliances” and has been tested in accordance with the procedures and methods set forth by UL 1978 / ULC S662

Round

GA – G Plus – standard with 1″ air space between the liner and shell. Optional material insulation of 1″, 2″, 3″ or 4″ thickness is available for Model G Plus. Our GA & G plus series is applied in situations where open shafts are available and zero clearance is not required. Inside diameters of 6″ through 36″ come standard with 20-gauge type 304 stainless steel inner liners.