These tubes run between steam-distribution drums at the top of the boiler and water-collecting drums at the bottom of the boiler. Steam flows from the steam drum to the superheater before entering the steam distribution system. Heater Fuel. Heaters may use any one or combination of fuels including refinery gas, natural gas, fuel oil, and
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Boiler brick work-installation or repair: 9014: Boiler cleaning-residential: 8720: Boiler inspection: 3726: Boiler installation or repair-steam: 3175: Boiler manufacturing-cast iron for heating purposes: 5183: Boiler or steam pipe insulating : 3726: Boiler scaling: 3620: Boilermaking: 5183: Boilers-domestic-installation or repair-3132: Bolt or
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Steam Heating or Steam Power Companies: 99163: Steam Mains or Connections Construction: 99165: Steam Pipe or Boiler Insulation: 99220: Stevedoring--By Hand or by Means of Hand Trucks Exclusively--No Hoisting of Cargo: 99221: Stevedoring--Handling Explosives or Ammunition--under Contract: 99222: Stevedoring: 99223
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VI BCR* AUTOMATIC "PACKAGED" BOILER This unit is a complete steam or hot water generating system, incorporating a water- cooled vibrating grate as the firing mechanism (Figure 6). Coal is delivered from the storage bin to a hopper from which it travels on the vibrating grate to the fuel bed.
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