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Mr. Steam C0500

CU Series, 12kW Steam Shower Generator, Mr. Steam

Note: The Mr. Steam C0500 replaces the discontinued Mr. Steam CU500 generator

Improving on the popular CU500 steam generator, the new Mr. Steam C0500 commercial steam bath generator is engineered for around-the-clock use in the most demanding commercial steam rooms. This high-efficiency, low maintenance steam generator can power one or two steam rooms up to 500 adjusted cubic feet (ACF).

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The C0500 12kW steam shower generator is constructed of durable stainless-steel for years of reliable and efficient operation. The unit is vertically built to fit narrow mechanical rooms for easy maintenance and accessibility.

The MrSteam C0500 steam room boiler includes a National Board registered pressure vessel wrapped in insulation and a 12-kilowatt corrosion-resistant stainless-steel heating element. The generator comes with a pressure gauge and sight glass which allows facility operators to view operation information at a glance. The unit includes an auxiliary manual reset, low-water cutoff for added safety.

Health clubs, resorts, hotels, day spas, and other large commercial centers rely on Mr. Steam CU series generators for reliable and hands-off, automated operation. The C0500 generator is UL-listed, ASME-certified and CSA-certified to ensure safety and quality. All CU Series units are wired and pre-tested before shipping to ensure that each unit is working perfectly.

The unit comes with an Automatic Blowdown System which performs daily programmed cleansing of the generator tank to prevent sediment build-up. Additionally, we recommend the use of an effective water treatment system to ensure optimal performance of the unit.

The included Digital 1 control package maintains pre-set steam room temperatures and ensures consistent steam production. The package includes a factory-installed digital 1 control with a sensor guard, CU steam head, steam solenoid valve, and all necessary operating equipment. The included AromaSteam steam head infuses essential oil aromas into the steam room.

The C0500 generator is available in 208V, 240V, and 480V three-phase (3-PH) configurations, and 208V, 240V single-phase (1-PH) configurations.

All Mr. Steam CU Series generators are designed, engineered, and assembled in the USA.

SteamSaunaBath is proud to be an authorized Mr. Steam partner and offer the full line of Mr. Steam products and parts.

We guarantee the lowest price. If you see a lower price advertised for this item elsewhere, give us a call!

SteamSaunaBath is the bathing environment experts. We specialize in steam room and sauna design, sales, installation, maintenance, and repair services. Our half-century of hands-on experience means that we are uniquely qualified to ensure the success of your bathing space and an unparalleled steam bathing experience. To contact a SteamSaunaBath Bathing Specialist, call: (800) 707-2862.

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CO500 Club Generator
  • Sight glass
  • Standard with full 1" drain port
  • Stainless steel jacket
  • Compact vertical design
  • Durable electronic components
  • Features National Board registered pressure vessel
  • Use high quality fibrous glass pressure vessel insulation for maximum energy performance
  • Features stainless steel heating elements for corrosion resistance with ASME grade flanges for longevity and reliable performance
  • Steam-rated operating and high limit pressure controls for Steam-On-Demand
  • Pressure gauge and sight glass to provide operating information at a glance
  • Easy installation and service accessibility
  • Meet ASME requirements and UL/CSA nationally recognized testing standards
Digital 1 Control
  • Steam room temperature regulating sensor
  • Advanced low-mass, quick response thermistor with sensor guard
  • Durable and capable of responding to steam room temperature within tight tolerances
  • Electronic temperature control factory pre-installed with panel mount design supplied with a plate for optional remote installation in a standard 4X4 electrical box
  • Allows owner/operator to set room temperature accurately and reliably
  • Providing efficient, consistent control with full 100ňö F - 120ňö F range
  • Integrated in-steam room high temperature control provides an additional level of reliability
Steam Solenoid Valve
  • All brass construction with stainless steel trim, sized to match steamhead distribution
  • Steam-rated seat for high reliability and quick response steam delivery
Aromasteam Steamhead
  • All brass construction with polished chrome finish
  • Full 3/4 inch NPT size for quiet, controlled steam delivery
  • Supplied with full coverage polycarbonate cover
  • Engineered to operate seamlessly with Mr.Steam's AromaFlo aromatic oil delivery system
Automatic Blowdown System
  • System programmed daily discharge of accumulated sediment
  • Digital Timer provides 24/7 startup/shutdown and AutoFlush operation
Auxiliary Manual Reset
  • Independent manual reset
  • Backup low water cutoff control


    • Steam bath generator 30"L x 20"W x 38"H
    • Installation and operation manual
    • Limited warranty


Product Options:
Voltage & Phase

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Steam Bath Generator Installation Materials

Transformer, 208-240/120V, CU Series, Mr.Steam  Transformer, 208-240/120V, CU Series, Mr.Steam CU 99331C   $420.00 
Transformer 480V, CU Series, Mr.Steam  Transformer 480V, CU Series, Mr.Steam CU 99331F   $460.00 
Boiler Mounting Stand II  Boiler Mounting Stand II SSL-T512   $169.95 
Brass Steam Throttling Valve  Brass Steam Throttling Valve JST-44   $83.95 

Brass \"Y\" Strainers  Brass "Y" Strainers JST-45   $58.95 

Free Essential Aroma Oil Gift!


Steam Room Safety

Digital Steam / Sauna Room Thermometer w/ Stainless Sensor Guard, 3-1/2\", Bathology  Digital Steam / Sauna Room Thermometer w/ Stainless Sensor Guard, 3-1/2", Bathology PreciseTemp 320   $214.95 

Stop Switch, CU Series, Mr.Steam  Stop Switch, CU Series, Mr.Steam CU SteamStop   $332.00 
Temperature Alarm, CU Series, Mr.Steam  Temperature Alarm, CU Series, Mr.Steam CU Alarm   $184.00 
High Temperature Limit, CU Series, Mr Steam <img src=\"/catalog/images/ssb-new-item-banner.png\" />  High Temperature Limit, CU Series, Mr Steam CU-HTC   $402.50 

Steam Room Lighting

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Recessed Light, LED, Mr Steam  Recessed Light, LED, Mr Steam LEDLITE   $525.00 

Secondary Steam Bath Generator Controls

Digital 1 Control Package, CU360-CU1400, Mr.Steam  Digital 1 Control Package, CU360-CU1400, Mr.Steam CU1-Digital1   $920.00 
30-Minute Mechanical Timer w/ Steam Vent, CU Series, Mr.Steam <img src=\"/catalog/images/ssb-new-item-banner.png\" />  30-Minute Mechanical Timer w/ Steam Vent, CU Series, Mr.Steam 104327B   $262.50 
30-Minute Digital Count-Down Timer w/Steam Vent, CU Series, Mr.Steam <img src=\"/catalog/images/ssb-new-item-banner.png\" />  30-Minute Digital Count-Down Timer w/Steam Vent, CU Series, Mr.Steam 104327DIG   $609.00 

Steam Bath Generator & Room Maintenance

Steam Room Cleaner, Concentrated, 1-Gallon Container  Steam Room Cleaner, Concentrated, 1-Gallon Container SSL-T562   $19.95 
Steam Room/Shower Cleaner, 22-Ounce Spray Bottle  Steam Room/Shower Cleaner, 22-Ounce Spray Bottle SSL-T574   $9.95 
Scale Buster, 16 oz.  Scale Buster, 16 oz. JST-49   $39.95 
Blowdown Tank, AMSE, CU360-CU3000, Mr.Steam  Blowdown Tank, AMSE, CU360-CU3000, Mr.Steam CU-BDT-ASME36   $2360.00 

Steam Bath Generator Water Treatment

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Commercial Steam Bath Boiler / Generator Water Conditioning System, Bathology  Commercial Steam Bath Boiler / Generator Water Conditioning System, Bathology ScaleOut 430   $1494.95 

Model CO500
Minimum Adjusted Cubic Feet 401
Maximum Adjusted Cubic Feet 500
Kilowatt Rating (KW) 12 KW
Shipping Weight (Lbs.) 250 lbs
Water Supply Connection 1/4" NPT
Generator Steam Line Connection 1" NPT
Steam Head Connection 3/4" NPT
Drain Connection 1" NPT
Safety Relief Valve Connection 3/4" NPT
Safety Relief Valve PSIG 15 PSIG
Control "Rough In" Cut Out 3-1/2" x 3-1/2"
Control Sensor Cable 30' 5", 25', 2 Conductor, 24 AWG, Shielded Cable
Control Sensor "Rough In" Cut Out 3/8" Diameter
Generator Control Connection 6 Position Terminal Block
Generator Control Cable 6" Long, 4 Conductors, 16 AWG
Width In Inches 20"
Depth In Inches 30"
Height In Inches 38"