Hood & Grease Duct
The right choice for your Grease Duct / Hood
UL 1978 Standard, Grease Duct - under this listing, several Jeremias models have been determined suitable for Grease Ducts as determined by NFPA 96, the “Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations”. &
UL 2221 - suitable for Zero Clearance to combustibles and as a two-hour fire-rated-resistive enclosure assembly
A perfect solution to field-fabricated steel - you’ll save a ton on installation costs.
Factory Built Grease Duct
We have options for your project - contact us to determine the best product for you.
Grease duct systems are intended for use in connecting Type 1 and 2 kitchen hoods, cooking ovens, and exhausting all commercial cooking appliances to the outdoors. All current NFPA 96 and International Mechanical Code editions now recognize UL 1978 Grease Duct as a safer alternative to field-fabricated steel systems. Jeremias grease ducts are available in single-wall, double-wall reduced clearance, and zero clearance options.
Single-wall is a direct replacement for field-fabricated steel. It may be field wrapped per NFPA 96 for reduced or zero clearance, eliminating welding in the field. If left unwrapped, it requires 18 inches of clearance to combustible materials.
Double-wall Reduced Clearance has 1.5” of ceramic fiber compressed into a 1.25” space between the inner liner and outer jacket. This results in a dramatically reduced clearance to combustible materials, and is perfect for single story buildings where the vent does not penetrate a fire-rated shaft assembly.
The special Double-wall Zero Clearance models utilize 3.25” of a unique higher density ceramic fiber insulation between the inner liner and outer jacket. These Zero Clearance models are also a two-hour fire-rated-resistant enclosure/duct assembly.
UL Listing
* Please note, not all UL listings are available on all products. Please ask your rep for a specific UL Listing for your application.
UL-1978 Standard Grease Duct (ULC-S662 Standard for Factory-Built Grease Ducts)
UL-2221 Standard, Fire Resistive Grease Duct Enclosure Assemblies
Additional UL/ULC 20" W.C. Pressure Listing
UL-103 Standard
Building Heating Appliance Chimney
(Industrial Type 540°C Chimney)UL-103 Standard, Additional Type HT Listing
UL-2561 Standard, 1400F Chimney Listing (ULC/ORD-C959 Industrial Type 760 C Chimney)
UL-103 & UL-2561 Standards, Additional Positive Pressure
Listing to 90” WC after 1400°FUL-1738 Standard, Venting Systems for Gas-Burning
Appliances, Categories II, III & IV (ULC-S636 Standard for
Type BH Gas Venting Systems)UL-441 Standard, Gas Vents (ULC-S605 Standard for Gas
Vents)UL-641 Standard, Type L Low-Temperature Vent (ULCS609
Standard for Low-Temperature Vents Type L)