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Vapor Power International

Vapor Power International manufacturer Boilers, Packaged Steam Generators, Thermal Fluid Heaters, and Electric Boilers. Applications include: Industrial Boilers, Commercial Boilers, Marine Boilers and Military Boilers.
Vapor Power steam generators (Circulatic Boilers, Modulatic Boilers) and liquid phase heaters (HI-R-Temp Boilers) offer exceptional endurance and reliability. Vapor Power boilers are built to withstand the rigorous demands of daily boiler operation. Our boilers are built to the highest quality standards and exacting codes such as ASME, FM, U.S. Coast Guard, ABS, CSA, and Lloyd's Registry. We use the most advanced production technology to further ensure superior quality of our boilers.


Modulatic ®

  • Full Steam in 5 Minutes
  • Fully Modulating Output
  • Compact Size & Weight
  • High Pressure
  • Safe Operation

Steam from: 620 – 10,350 PPH
Pressure from: 15 – 3100 PSI
Completely Packaged, Fully Test

The Modulatic is a once-through waterube boiler with a positive displacement pump to provide a constant flow of feedwater.The pump is controlled by a variable speed drive that regulates the amount of feedwater that is sent to the coils in response to changes in steam pressure.

The servo control changes the amount of fuel and combustion air in direct proportion to the flow of water being sent to the coils. Dry steam is then produced in the steam separator. The water remaining is removed by a steam trap.