Schebler Chimney Systems
UL-103 Listed, Prefabricated Chimney Systems for Boiler and Generator Exhaust
UL-1738 Listed Special Gas Vent Systems for High-Efficiency Appliances
UL-1978 Listed / UL-2221 Classified Zero Clearance to Combustibles, 2 Hour Fire Rated Grease Duct Systems, Round and Flat Oval
Sequence Draft Control™ Damper Systems
Engineered Free Standing Stack Systems
Mestek Commercial Damper and Louver Group
Air Balance, Cesco, Louvers & Dampers, Arrow United: UL-555A Life Safety Dampers, Building Louvers, Control & Balancing Dampers, Roof Hoods, Louvered Penthouses
FIRESAFE Fire Rated Ductwork Ltd
CASWELL FIRESAFE® Non-Coated Fire Resisting Ductwork systems rated up to 4 hours. UL® listed – File #R38800 / Guide Card CDXN – Ventilation Duct Assemblies – BS476:Part 24 Designed in Britain – Manufactured in the U.S.
HVAC Duct Sound Attenuators, Acoustical / Thermal Plenum Panel Systems, Acoustical Stack Silencers, Acoustical Louvers
Atlantic Air Products
Manufactured Duct Systems, Round / Flat Oval Spiral Duct, Gasketed Fittings, Perforated Spiral Diffusers, Welded Exhaust Systems
Draft Induction Fans, Engineered Venting Solutions
Chemical Air Transfer Systems, Factory Mutual Listed Fluoropolymer Coated Stainless Steel for Acid Exhaust.
Laser Welded Clamp-Together Duct Systems
Dust & Mist Collection Applications.