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Mr. Steam E-Series Generators (MS90-400E)

Sale Sale
Original price $2,300.00
Original price $2,300.00 - Original price $3,950.00
Original price $2,300.00
Current price $1,610.00
$1,610.00 - $2,765.00
Current price $1,610.00

In Stock & Ready to Ship

All orders are shipped within 1-2 business days. Product ETA 5-7 business days.


Indulge in the ultimate relaxation experience with Mr. Steam's MS steam generators, perfect for your personal steam room. This powerful steam generator is designed to accommodate steam rooms of up to 257 cubic feet, providing ample space for you to unwind and destress. Installation is a breeze and the unit can be located up to 60 feet away from the steam room. With a range of typical installation locations, including closets, vanities, basements, and heated attics, the MS steam generator can be easily integrated into your home. 

Crafted from premium quality stainless steel, both inside and out, these steam generators are built to last. This sturdy construction ensures long-lasting strength and durability, providing you with years of uninterrupted steam sessions. 

Experience the ultimate in relaxation with the MS steam generator by Mr. Steam. Whether you're looking to unwind after a long day or seeking relief from aching muscles, this steam generator is the perfect addition to your personal sanctuary. 


The MS steam generators by Mr. Steam are designed to provide you with a luxurious and rejuvenating steam experience. Here are the key features of these steam generators: 

  • Stainless steel tank - The tank of the MS steam generators is made of high-quality stainless steel, which ensures durability and longevity. This material is also resistant to corrosion, which is essential for steam generators that are used in moist environments. 
  • Industrial, large diameter, serviceable heating element - The heating element of the MS steam generators is industrial-grade and has a large diameter, which ensures efficient and reliable steam production. The element is also serviceable, which means it can be easily replaced if needed. 
  • Modular Plug and Play connections - The MS steam generators feature modular Plug and Play connections, which make installation quick and easy. The connections are designed to be user-friendly and can be easily disconnected if needed. 
  • Electronic water-level control system - The electronic water-level control system of the MS steam generators ensures that the water level in the tank is always at the optimal level for steam production. This system also helps to prevent damage to the heating element and other components. 
  • Full-port drain valve - The MS steam generators come equipped with a full-port drain valve, which makes draining the tank and performing routine maintenance tasks quick and easy. 
  • Limited lifetime generator parts warranty - Mr. Steam stands behind the quality of their MS steam generators and offers a limited lifetime warranty on the generator parts. This gives you peace of mind knowing that you are investing in a high-quality and reliable product. 

In conclusion, the MS steam generators by Mr. Steam are an excellent choice for those looking for a reliable and high-performance steam generator that provides a luxurious steam experience. Its innovative features, such as the stainless-steel tank, industrial-grade heating element, modular plug and play connections, electronic water-level control system, full-port drain valve, and limited lifetime warranty, make it stand out from the rest. 


When it comes to a steam generator, safety is of utmost importance, and the MS steam generators by Mr. Steam are no exception. In addition to its superior performance and luxurious steam experience, the MS steam generator is also equipped with a range of safety features that ensure safe operation at all times. Let's take a closer look at some of the key safety features: 

  • Built-in, Low-Voltage 24-Volt Control - The MS steam generators feature a built-in, low-voltage 24-voltage control system that ensures safe and efficient operation. This system is designed to prevent any electrical hazards, and the low-voltage control ensures that there is no risk of electric shock. 
  • 60-Minute Electronic Countdown - This steam generator is equipped with a 60-minute electronic countdown timer that ensures that the generator turns off automatically after a set period. This feature ensures that the generator does not operate for an extended period, which can be a safety hazard. 
  • ASME Safety Valve Shutdown with 75-Minute Limiting Safety Back-Up - The steam generator features an ASME safety valve that shuts down the generator if the pressure inside the tank exceeds a safe level. Additionally, the safety valve is backed up by a 75-minute limiting safety back-up feature that ensures that the generator shuts down even if the safety valve fails. 
  • Temperature Safety Control - This steam generator is equipped with a temperature safety control system that prevents the generator from overheating. If the temperature inside the tank exceeds a safe level, the generator will shut down automatically, preventing any potential damage. 
  • UL Listed - The MS steam generators are UL listed, which means that they have been tested and certified by Underwriters Laboratories, a leading safety organization. This certification ensures that the generator meets rigorous safety standards and operates safely. 

To sum up, the MS steam generators from Mr. Steam are a powerful and safe unit that offers a high-quality steam experience. Its numerous safety features, such as the built-in, low-voltage 24-volt control system, 60-minute electronic countdown timer, ASME safety valve shutdown with 75-minute limiting safety back-up, temperature safety control, and UL listing, guarantee safe operation during use. Whether you're seeking relaxation or therapeutic benefits, this steam generator provides a worry-free steam session that allows you to fully enjoy the benefits of steam with complete peace of mind. 

Steam Room Calculator

Steam Generator Capacity Table

Steam Generator Capacity Table

Model Max Cubic Ft KW
MS90E 71 5
MS150E 107 6
MS225E 161 7.5
MS400E 257 9
MSSUPER1E 339 10
MSSUPER2E 411 12
MSSuper1E 482 15
MAX MX4E 678 20
MAX MX5E 822 24
MAX MX6E 964 30
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Questions? Give us a call today (307)201-4597