Electric Steam Boilers


  • Vertical pressure vessel means dryer steam
  • Compact footprint
  • Lower circuit loading allows for overvoltage conditions
  • Individually replaceable elements
  • High Pressure
Steam from: 30 kW to 4320 kW
(102 to 14,688 PPH)
Pressure from: 15 – 2500 PSIG
Voltages from: 208 – 600 Volts

Theory of Operation

Vapor Power electric steam boilers are designed to provide fast, efficient, and economical steam for heating and process through the use of electric resistance elements. The boiler controls automatically energize/de-energize steps of elements to maintain the desired steam pressure. All boilers utilize ASME pressure vessels and all electrical components are UL listed and are wired in accordance with the current National Electrical Code requirements.

Each generator is insulated with 3-1/2″ fiberglass secured to the vessel, and is housed in a heavy-gauge sheet metal cabinet mounted on a full size structural steel base. All Vapor Power resistance style boilers utilize 70-75 wpsi Incoloy-sheathed elements configured in conservatively sized circuits to allow for overvoltage conditions as great as 10% without adversely affecting the integrity of circuit components.


With over 100 years of experience in the industry and thousands of operating units, Vapor Power stands ready to assist with any specific application. Common applications include:


STR-1638 to STR1654


STR2438 to STR2474


STR3054 to STR3680


STR4274 to STR2474