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Mr. Steam 5kW MS-E Series Steam Shower Generator MS90E

Available Features
Volts & Phase

Estimated to ship:

Call or text anytime 1-844-HYDRO-33 (1-844-493-7633)


The Mr. Steam MS90E 5kW home steam shower generator is engineered for residential steam rooms up to 71 adjusted cubic feet (ACF).

Required control package sold separately.

The MS90E steam shower generator features intelligent SteamBath technology for years of efficient, clean, quiet, and reliable operation. Its advanced microprocessor operating platform makes it the perfect choice for residential steam bathing applications.

The MS90E is durably constructed of surgical-quality stainless steel throughout and features industrial-grade heating elements. The steam unit is equipped with advanced water solenoid technology, durable electronic components, LED color indicators for self-diagnostics, a full-port drain valve, and a variety of other features.

MS E-Series steam generators are engineered to provide the most consistent and reliable bathing experiences. The MS90E steam shower unit generates a constant steam by introducing just the right amount of water through a proprietary dispersal chamber.

The generator uses less than two gallons of water during a typical 20-minute bathing session, making it both eco-conscious and economical. The unit is perfect for any home steam shower kit.

The compact size of the MS90E generator, about the size of a suitcase, allows the unit to be installed conveniently out of sight up to 60 feet away from the steam room. Typical installation locations include closets, vanities, cabinets, and other similar locations.

The optional Express Steam feature is equipped with a built-in thermostat that maintains water temperature so that you may start steaming quickly.

The Mr. Steam MS90E 5kW steam generator is available in 240V single-phase (1PH) configurations.

MS generators are compatible with all Mr. Steam controls and with the SteamLinx mobile application. Select the available control with features that best suit your bathing preferences.

We recommend a Mr. Steam Auto Drain System with your MS90E. The Auto Drain system automatically cleans the tank after each bathing session to help prevent harmful mineral build-up and to prolong the life of and ensure the best performance from the unit.

The MS 90-E steam bath generator carries a limited lifetime warranty and is fully serviceable. Mr. Steam MS-E generators are US and Canadian UL listed and CE and NOM certified for your safety.


  • For steam baths sized up to 71 adjusted cubic feet
  • Available in 240V
  • Stainless Steel tank
  • Industrial-grade, serviceable heating element
  • MiniDIN control connections
  • Available Auto Drain automatic draining system
  • Durable electronic components
  • Electronic water-level control system
  • Low-voltage safety control circuits
  • Solid-state circuitry
  • Diagnostic LED Displays
  • Full port drain valve
  • ASME safety valve
  • UL/CUL/NOM/CE Listed


  • 5kW Steam bath generator, 14-1/2"L x 6-3/4"W x 14-3/4"H
  • Installation and operation manual
  • Limited warranty
Model MS 90E
Minimum Adjusted Cubic Feet 1
Maximum Adjusted Cubic Feet 71
Shipping Weight (Lbs.) 30 lbs
Kilowatt Rating (KW) 5kW
Electrical Specifications (refer to Electrical chart)
Water Supply Connection 3/8" NPT
Generator Steam Line Connection 1/2" NPT
Steam Head Connection 1/2" NPT
Drain Connection 1/2" NPT
Safety Relief Valve Connection 3/4" NPT
Safety Relief Valve PSIG 15 PSIG
Control "Rough In" Cut Out 1"
Generator Control Connection 8-Pin Mini-DIN Connector
Generator Control Cable 30', 8 Conductor, 24 AWG, Shielded Cable
Width 14-1/2"
Depth 6-3/4"
Height 14-3/4"

See general installation guidemanual and specification.
See planning guide, benefits brochure and steam benefits brochure.
See warranty.

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