The Advantages
  High Voltage Electrode Steam Boilers offer proven advantages...
Converts 100% of the electrical energy input into heat. Rapid response achieves full load within 15-20 minutes from cold start; within one minute from hot start. Automatic load and pressure controls provide stepless control over the full output range, from 0 to 100% to match output to system requirements.
  Economical installation
  Fuel lines, storage and handling equipment, economizers and emission control equipment are not required, saving on capital expenditures.
  Lower operating cost
  Simple to operate and maintain, all electrical energy is converted into heat. Automatic controls reduce the operating personnel requirements. No complex pollution or combustion control equipment to operate and maintain. For areas affected by allocations or interruptions of natural gas and costly oil supplies, electrode boilers provide a dependable source of steam. Offers a clean, easier to use alternative to fossil fuels. Allows users to take advantage of lower energy rates during daily or seasonal off peak periods.
  Safer operation
  No combustion hazards because there are no flames, fumes, fuel lines or storage tanks. No low water danger since the current cannot flow without water. And no problems with heat buildup or electrode burnout even if scaling should occur. Thermal shock is eliminated.
  Minimal maintenance
  The absence of excessive temperatures and burnout assures long operating life. Electrode boilers have a minimum number of components and electric controls. With fewer parts and no fuel residues, cleaning and maintenance requirements are reduced. Simple control systems provide maximum reliability.

Electrode Boiler

CEJS Series
  • Cleaver-Brooks and ACMETHERM design High Voltage Jet Type Electrode Steam Boilers for direct connection from 4.16 to 25 KV supply circuits (3 PHASE - 4 wire, grounded neutral).
  • Ratings from 2 to 65 MW (at various operating pressures)
  • 100 psig to 500 psig operating pressures available
  • Do not require step-down transformers if used at 25 KV
  • or other H.V. line voltages.
  • Simplified electrical installation through elimination of a number of components
  • Substantial final cost savings through elimination of stepdown transformer, wherever possible, structure, comp nents and associated labor costs.
  • Backed by Cleaver-Brooks/CBRA service 24 hours a day, 365 days a year.
  • Watch the CEJS Electrode Boiler Video.
4.16 to 25 KV


Electrode boilers utilize the conductive and resistive properties of water to carry electric current and generate steam. An a.c. current flows from an electrode of one phase, through neutral, to an electrode of another phase using water as the conductor. Since the water has electrical resistance, this current flow generates heat directly in the water itself. The more current (amps) that flows, the more steam produced. 100% of the electrical energy is converted into heat with no stack or heat transfer losses.
Low water protection is absolute since the absence of water prevents current from flowing and the electrode boiler from producing steam. Unlike conventional resistance type electric boilers or fossil fuel boilers, nothing in the electrode boiler is at a higher temperature than the water itself. If scaling should occur in the boiler, it will electrically insulate the electrodes, which reduces current flow and boiler output. There is no loss in conversion efficiency however, and , simply cleaning the electrodes will restore full boiler capacity. There can be no heat buildup in the electrodes, therefore, no electrode burnout, and no danger to the boiler itself.

Design Features
The model CEJS High Voltage Steam Boiler is a proven leader with more hours of operating experience over a wide range of applications. The CEJS electrodes are vertically mounted around the inside of the pressure vessel which enables the CEJS to produce maximum amounts of steam in a minimum amount of floor space. The CEJS operates at existing distribution voltages, 4.16 to 25 kV with exceptional efficiency- up to 99.9%! Models are avai able to produce steam in capacities to 270,000 pounds per hour. Pressure ratings range from 100 psig to 500 psig. All CEJS boilers are designed to ASME Boiler and Pressure Vessel Code, and are certified and registered pressure vessels.
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