23 81 50 Terminal Heat Transfer Units 23 52 10 Boilers 23 50 11 Heat Generation 09 29 05 Lead Lined Gypsum 23 21 16 Hydronic Specialties 23 20 01 Pumps 23 00 00 Heating, Ventilating and Air Conditioning (HVAC) 23 55 00 Fuel-Fired Heaters 23 22 00 Steam and Condensate Piping and Pumps 23 57 00 Heat Exchangers for HVAC
CSI Codes : 23 00 00 Heating, Ventilating and Air Conditioning (HVAC), 23 20 00 HVAC Piping and Pumps, 23 21 00 Hydronic Piping and Pumps, 23 22 00 Steam and Condensate Piping and Pumps, 23 00 00 Heating, Ventilating and Air Conditioning (HVAC), 23 50 00 Central Heating Equipment, 23 52 00 Heating Boilers, 23 55 00 Fuel-Fired Heaters, 23 57 00 Heat Exchangers for HVAC, 23 81 00 Decentralized Unitary HVAC Equipment
Trade Names : Infloor Heating, Armstrong Pumps, Raypak Boilers, Modine Heaters, Rupp Make-Up, Sterling Specialties, Vibration Mountings, Caleffi, Smiths Environmental Products, Detroit Radiant Products