Double Wall Insulated Grease Duct

Duct requires no on site welding and is leak tested at the factory for quality assurance.

Double wall insulated grease duct.

12 diameter grease duct 45 degree elbow w access. 3g grease duct systems are tested and listed to ul 1978 and ul 2221. Not only has this patented ul 2221 classified product been tested for zero clearance to combustibles it eliminates the need for a fire rated chase with its 2 hour fire rating. Our prefabricated double wall round grease ducts are designed and built for vertical runs and don t require field welding or secondary insulation.

Double wall factory built grease duct is ideal for use in applications where reduced clearance or zero inch clearance to combustibles is needed. Double wall exhaust systems insulated exhaust systems made of stainless steel. Single wall grease duct is etl listed to ul standard 1978 grease ducts and can ulc s662. Outer wall constructed of ul 304 stainless steel inner wall constructed of 400 series stainless.

Recommended duct sizes medium duty hood lengths 5 6 7 5. Double wall zero clearance. Double wall kitchen exhaust vent 3 ceramic insulated metal fab grease duct products are manufactured in a strictly controlled environment that enhances product precision reliability and safety. Double wall grease duct is etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies.