AI Series 12kW Commercial Steam Room Generator | Amerec AI-12

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The 12kW Amerec AI-12 commercial steam shower generator is engineered for the most demanding commercial health club steam rooms with dimensions of up to 550 cubic feet (CF). The Amerec AI-series steam boilers include two 3/4" NPT steam heads. Required control sold separately.

This 12-kilowatt electric steam room boiler can power up to two steam showers with dimensions up to 550 adjusted cubic feet (ACF).

The AI-12 steam bath generator is constructed of durable steel for years of efficient, reliable operation. The unit features an ASME-certified pressure vessel for instant steam, durable electronic components, electronic high limit pressure control systems, water level sight glass, 3-level water sensing system with low water cut-off, and a variety of other features.

Health clubs, day spas, hotels, wellness facilities, and other commercial sites rely on the Amerec AI-12 for around-the-clock use. Amerec AI series generators are designed for easy maintenance and automated operation. AI Series boilers are UL and cUL listed and comply with ASME requirements to ensure safety and quality.

The Amerec AI-12 generator is available in 208V single-phase (9006-120), 240V single-phase (9006-121), 208V three-phase (9006-123), 240V three-phase (9006-124), and 480V three-phase (9006-126) configurations.

The Amerec AI-12 commercial steam room boiler requires the use of a control for operation. Controls allow health club and facility managers to control features such as temperature and bathing duration. Select the available control with features that best suit your preferences.

We highly recommend the purchase of the available ADI Automatic Drain System with your AI-12 unit. The ADI Automatic Drain System automatically performs recommended daily draining and flushing of the boiler tank to reduce build-up of solids such as scale and sludge.


  • Pressurized vessel for instant steam
  • Durable electronic components
  • Low water cut-off with manual reset
  • 3/4” drain port
  • Room high limit temperature safety system
  • Operating, electronic high limit pressure control systems
  • Sight glass
  • Optional D24/7 digital time clock can be used for both generator on/off settings and ADI-D Autodrain system
  • Alarm circuit panic button
  • ASME safety valve
  • ASME certified low-pressure operation vessel


  • AI-24 steam boiler
  • Two 3/4” NPT steam heads
  • Installation and operation manual
  • Limited warranty



Model AI-12
Shipping Weight 125 lbs
Minimum Adjusted Cubic Feet 301
Maximum Adjusted Cubic Feet 550
Kilowatt Rating 12.0 KW
Electrical Specifications Electrical Chart
Water Supply Connection 1/2" NPT
Generator Steam Line Connection 3/4" NPT
Steam Head Connection 3/4" NPT
Drain Connection 3/4" NPT
Safety Relief Valve Connection 3/4" NPT
Safety Relief Valve 15 PSIG
Control "Rough In" Cut Out 2-1/8" x 3-1/4"
Control Sensor Cable 25', 2 Conductor, 22 AWG, Shielded Cable
Control Sensor "Rough In" Cut Out 7/8" Diameter
Generator Control Connection 3 Position Terminal Block
Generator Control Cable 25', 3 Conductor, 22 AWG, Shielded Cable
Width 17-1/2"
Depth 20-3/4"
Height 23-1/4"