From our simple beginning, to the company we know today, our 80+ years of heating, ventilating and air-handling manufacturing experience has grown into exceptional products and timely service to our valued clients around the world.

• See also:
• Masterformat 2004
• 23 30 00 - HVAC AIR DISTRIBUTION
• 23 34 00 - HVAC Fans
• 23 34 13 - Axial HVAC Fans
• 23 34 16 - Centrifugal HVAC Fans
• 23 34 23 - HVAC Power Ventilators
• 23 34 33 - Air Curtains
• 23 36 00 - Air Terminal Units
• 23 36 13 - Constant-Air-Volume Units
• 23 36 16 - Variable-Air-Volume Units
• 23 50 00 - CENTRAL HEATING EQUIPMENT
• 23 54 00 - Furnaces
• 23 54 13 - Electric-Resistance Furnaces
• 23 54 16 - Fuel-Fired Furnaces
• 23 55 00 - Fuel-Fired Heaters
• 23 55 13 - Fuel-Fired Duct Heaters
• 23 55 23 - Gas-Fired Radiant Heaters
• 23 55 33 - Fuel-Fired Unit Heaters
• 23 57 00 - Heat Exchangers for HVAC
• 23 57 16 - Steam-to-Water Heat Exchangers
• 23 57 19 - Liquid-to-Liquid Heat Exchangers
• 23 60 00 - CENTRAL COOLING EQUIPMENT
• 23 63 00 - Refrigerant Condensers
• 23 70 00 - CENTRAL HVAC EQUIPMENT
• 23 71 00 - Thermal Storage
• 23 72 00 - Air-to-Air Energy Recovery Equipment
• 23 72 13 - Heat-Wheel Air-to-Air Energy-Recovery Equipment
• 23 72 16 - Heat-Pipe Air-to-Air Energy-Recovery Equipment
• 23 73 13 - Modular Indoor Central-Station Air-Handling Units
• 23 73 23 - Custom Indoor Central-Station Air-Handling Units
• 23 74 00 - Packaged Outdoor HVAC Equipment
• 23 75 00 - Custom-Packaged Outdoor HVAC Equipment
• 23 80 00 - DECENTRALIZED HVAC EQUIPMENT
• 23 82 00 - Convection Heating and Cooling Units
• 23 82 16 - Air Coils
• 23 82 19 - Fan Coil Units
• 23 82 23 - Unit Ventilators
• 23 82 26 - Induction Units
• 23 82 33 - Convectors
• 23 82 36 - Finned-Tube Radiation Heaters
• 23 82 39 - Unit Heaters
• 44 13 00 - Gaseous Air Pollution Control Equipment
• Masterformat 1995
• 15500 - Heat Generation
• 15530 - Furnaces
• 15540 - Fuel-Fired Heaters
• 15670 - Refrigerant Condensing Units
• 15700 - Heating, Ventilating, Air Conditioning Equipment
• 15710 - Heat Exchangers
• 15720 - Air Handling Units
• 15760 - Terminal Heating and Cooling Units
• 15780 - Energy Recovery Equipment
• 15800 - Air Distribution
• 15830 - Fans
• 15840 - Air Terminal Units