THE ENERGY COMPANY, INC.

031-03125 CONTROLS, LIMIT SWITCHES, RELAYS, THERMOSTATS, GAS VALVES, ETC. | 031-03151 FURNACES, CENTRAL HEATING TYPE, FORCED AIR, GAS FIRED | 031-03160 HEATERS, GAS-FIRED: SPACE, ALL TYPES, INCLUDING PARTS AND ACCESSORIES | 630-63010 Coatings, Protective, Polyurethane, Etc. | 670-67068 Valves, Aluminum | 670-67069 VALVES, BRASS, CHROME, COPPER | 670-67070 Valves, Bronze: Angle, Ball, Check, Gate, Globe, Etc. | 670-67071 Valves, Butterfly, All Kinds | 670-67072 VALVES, CHROME (INACTIVE, PLEASE SEE COMMODITY CODE 670-69 EFFECTIVE JANUARY 1, 2016) | 670-67073 Valves, Flush, All Types; And Parts | 670-67074 Valves, Drop-Out | 670-67075 Valves, Iron Body: Angle, Check, Gate, Globe, Etc. | 670-67077 Valves, Plastic: Ball, Check, Diaphragm, Globe, Etc. | 670-67079 VALVES, SEMI-STEEL (INACTIVE, PLEASE SEE COMMODITY CODE 670-82 EFFECTIVE JANUARY 1, 2016) | 670-67080 Valves, Solenoid Control | 670-67081 Valves, Stainless Steel: Angle, Ball, Check, Gate, Globe, Etc. | 670-67082 Valves, Steel: Angle, Check, Gate, Globe, Etc. | 670-67089 Water Heater, Residential | 670-67091 Water Heaters, Commercial | 720-72055 Proportioning Pumps: Chemical Feed, Metering, Positive Displacement, And Injector Pumps (See Also Class 820) | 815-81565 Steam Traps And Strainers | 820-82000 Steam And Hot Water Boilers And Steam Heating Equipment | 820-82004 After-Coolers And Condensers | 820-82006 A.S.M.E. Code Tanks | 820-82008 Boilers, High Pressure | 820-82012 Boilers, Low Pressure | 820-82014 BOILER PARTS AND ACCESSORIES (NOT OTHERWISE CLASSIFIED) | 820-82016 Boiler Tubes | 820-82028 Burners, Gas And Oil | 820-82036 Coils, Steam Heating | 820-82038 Condensate Return Systems: Vacuum Heat Pumps, Wet Vacuum Pumps, Etc. | 820-82040 Controls: Combustion, Fuel Cut-Off, Hardness, High-Low Water Level, Ignition, Etc. | 820-82042 Controllers, Steam Boiler Automatic Conductivity | 820-82048 Deaerating Units | 820-82052 Draft Fans And Draft Gauges | 820-82056 Feedwater Heaters | 820-82060 Feedwater Injectors | 820-82068 Heat Exchangers, Accessories, And Parts | 820-82072 Hot Water Generators | 820-82084 Stacks, Steel | 845-84504 COMBUSTION EFFICIENCY MEASUREMENT EQUIPMENT | 910-91076 WELDING MAINTENANCE AND REPAIR SERVICES: BRAZING, CASTING, AND SOLDERING | 941-94125 BOILER MAINTENANCE AND REPAIR, STEAM, INCLUDING TESTING SERVICES, (SEE 941-56 FOR HYDROSTATIC TESTING) | 941-94127 Burner Maintenance And Repair | 941-94152 HEATING, STEAM, EQUIPMENT MAINTENANCE AND REPAIR | 941-94156 Hydrostatic Testing Services, Boiler | 941-94188 TURBINES, STEAM, MAINTENANCE AND REPAIR | 953-95322 BOILER INSURANCE | 981-98168 Steam Boilers, Steam Heating, And Power Plant Items Rental Or Lease | C-00090 BOILERS (NEW/REPAIR) | C-00290 CONTROL SYSTEMS | C-00440 ENERGY MANAGEMENT SYSTEMS | C-00710 INCINERATORS | C-00720 IRON AND STEEL FABRICATIONS | C-00750 INSULATION/MECHANICAL | C-00870 MECHANICAL CONSTRUCTION | C-00880 MILLWRIGHTING | C-00940 OIL AND GAS BURNERS | C-01110 PLUMBING | C-01630 STORAGE TANKS | C-01940 WELDING