Double Wall Rectangular Grease Duct

Use application of factory built grease ducts alternative to code prescribed welded carbon steel systems used to vent commercial cooking appliances single wall rectangular welded carbon steel systems have been the norm but are not the best choice anymore factory built systems ul listed stainless steel.

Double wall rectangular grease duct.

We offers 2 3 and 4 hour blast resistant and fire rated ducts duraducts including zero clearance kitchen grease duct lab exhaust and access doors to allow for cleaning. Double wall rectangular ducts utilize the same outer metal shell and insulation media as our internally lined rectangular ducts but have an additional metal inner shell between the insulation and the airstream. Double wall rectangular duct and fittings are one part of our complete line of hvac products. Grz rectangular grease ducts are suitable for the removal of smoke and grease laden vapors from commercial industrial institutional and similar cooking applications.

Captiveaire s single wall double wall grease duct are factory welded for ease of installation and superior performance to traditional site welded ductwork. Double wall rectangular duct is constructed with tdc end treatments. Rectangular double wall duct product pages. It is rated for 2 hours fire resistance with zero clearance to combustibles and it is compliant with international mechanical code imc national building code of.

Duraduct kex is a pre manufactured and non combustible double wall kitchen exhaust duct system. 2g grease duct systems are tested and listed to ul 1978 and ul 2221. Zero clearance grease duct models z3 z4 are additionally ul 2221 rated to zero clearance to combustibles and have an integral 2 hour fire rated enclosure not requiring a separate fire rated shaft. Double wall grease duct is etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies.

Our prefabricated double wall round grease ducts are designed and built for vertical runs and don t require field welding or secondary insulation. 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. For more information on our grz product line please watch our model grz introduction video below. All pipe models are ul 1978 grease duct rated to their relative clearance to combustibles single wall double wall air or blanket insulated.

This grease duct is suitable for interior and exterior installations. Single wall grease duct is etl listed to ul standard 1978 grease ducts and can ulc s662. This provides some additional characteristic to the duct as well as allowing a few more insulation. G series grease duct double wall kitchen exhaust vent 2 ceramic insulated metal fab grease duct products are manufactured in a strictly controlled environment that enhances product precision reliability and safety.