Mr.Steam C4500

CU Series 108kW Steam Shower Generator Package w/CU4500


The Mr.Steam C4500 Commercial Steam Shower Generator Package is engineered for around-the-clock use in the most demanding health club steam rooms, making it suitable for one or two steam rooms measuring up to 4500 cubic feet (CF). This high-efficiency and low maintenance generator package combines a 108kW CU Generator, Digital 1 Control, CU Steamhead, Automatic Blowdown System, Solenoid Valve, and Auxiliary Manual Reset.

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The C4500 features a durable and corrosion-resistant stainless-steel outer casing. The unit includes a National Board recognized pressure vessel wrapped in insulation for and a 108-kilowatt corrosion-resistant stainless-steel heating element. All CU Series units are wired and pre-tested before shipping to assure that the generators are working perfectly.

Health clubs, day spas, hotels, and other commercial wellness sites rely on CU series generators for dependable and continuous daily operation. The C4500 commercial steam room boiler complies with all UL, ASME, and CSA standards to ensure safety and quality.

The generator includes an Automatic Blowdown System which performs daily purging of the generator tank to prevent sediment buildup. Additionally, we recommend an effective water treatment system to help ensure optimal performance and longevity of the unit.

The C4500 generator requires the use of the included Digital 1 control package for operation. The control package comes complete with a Digital 1 control with a sensor cover, two steam solenoids, and two AromaSteam steam heads.

The unit includes a pressure gauge and sight glass which allows facility operators to view operating information at a glance. The unit comes with an auxiliary manual reset, low-water cutoff for added safety.

The C4500 is available in 208V, 240V, and 480V three-phase (3-PH) configurations.

All CU Series units 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 facility’s bathing space and an unparalleled steam bathing experience. To contact a SteamSaunaBath Bathing Specialist, call: (800) 707-2862.

C4500 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 100˚ F - 120˚ F range
  • Integrated in-steam room high temperature control provides an additional level of reliability

Steam Solenoid Valves (2)

  • All brass construction with stainless steel trim, sized to match steamhead distribution
  • Steam-rated seat for high reliability and quick response steam delivery

Aromasteam Steamheads (2)

  • 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 34"L x 28"W x 59"H
  • Installation and operation manual
  • Limited warranty
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Model C4500
Minimum Cubic Feet 3001 CF
Maximum Cubic Feet 4500 CF
Kilowatt Rating 108 KW
Shipping Weight 625 lbs
Water Supply Connection 1/2" NPT
Generator Steam Line Connection 1-1/2" 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 28"
Depth 34"
Height 59"


The weight or packaging of this product requires delivery by special appointment, and on a wooden pallet. 

  The driver is responsible for curbside delivery “only” and will lower the items to ground level. 

  Prior to shipping this product, we contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. 

  Our goal is to ensure your project success.