Kohler 18KW Steam Shower Generator


Kohler 18KW Steam Shower Generator

Sale price$4,867.00 Regular price$7,088.10
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Kohler 18KW Steam Shower Generator

Escape to the soothing comfort of your private steam bath, ready in just 60 seconds. With the press of a button, this 18-kilowatt steam generator delivers the purifying benefits of steam, including respiratory relief and cleansing the body of toxins and impurities, to your shower stall or custom shower environment.

Advanced Steam Technology

The Kohler 18KW Steam Generator is engineered to deliver a rich and steady flow of steam, offering an efficient and indulgent addition to your daily routine. With a robust 18KW output, this generator is capable of quickly filling even larger shower enclosures with soothing steam, creating a spa environment in the comfort of your own bathroom.

Designed for Discretion

Kohler's commitment to design excellence ensures that the 18KW Steam Generator not only performs exceptionally but also integrates discreetly into your home. Its compact size allows for installation in a variety of spaces, making it a seamless addition to any luxury bathroom setup. The generator's sleek exterior complements the aesthetic of high-end bathrooms, upholding the elegance of your decor.

User-Centered Controls

Kohler understands the importance of a user-friendly experience, which is why the 18KW Steam Shower Generator comes equipped with intuitive controls. These allow you to easily manage the steam intensity and duration, customizing your steam shower to your personal preference. The controls are designed to be as straightforward as they are stylish, ensuring a relaxing steam session every time.

Reliability and Durability

With the Kohler name comes the assurance of reliability and durability. The 18KW Steam Shower Generator is built to the highest standards, ensuring that it stands the test of time. High-quality materials and rigorous testing mean that your investment in a Kohler steam generator is one in long-lasting luxury and performance.


    • Fast-Response® technology produces a luxurious steam shower in 60 seconds
    • Power Clean™ technology offers one-touch automatic cleaning and safe maintenance
    • Constant Steam produces steam at a consistent rate, which greatly minimizes temperature fluctuations
    • The Invigoration Series uses approximately one gallon of water per 20-minute session, which is significantly less water than a traditional shower experience
    • To ensure safety, the system automatically shuts down after 20 minutes if not reactivated by the user
    • Requires K-5558 Invigoration Tandem Steam Generator Control Kit or K-5549-K1 DTV+ Tandem Steam Adapter Kit (sold separately)


      Model K-5539-NA
      Kilowatt Rating 18 KW
      Maximum Cubic Feet 550 CF
      Heater Weight 29 lbs (Per Generator)
      240V Amperage 45 Amps (Per Generator)
      Width 19.25" (489mm Per Generator)
      Depth 8.5" (216mm Per Generator)
      Height 12.5" (318mm Per Generator)



      For Steam Rooms up to 550 CF

      The Kohler Invigoration 18kW Steam Shower Generator is designed to power steam rooms up to 550 cubic feet (CF). Eco-friendly, durable, and safe to the touch, all Kohler units use Fast Response Technology Steam so they’re ready to go within 60 seconds. Please choose the required Control kit, Adapter kit and drain pan above (sold separately).

      Kohler 18kW Specs

      Dimensions: 19.25" W (489mm) x 8.5" D (216mm) x 12.5" H (317mm). 3 Year Limited Warranty. Model #: K-5539-NA (see K-5539-NA spec sheet; see K-5539-NA service parts). Heater Weight: 57.4 lbs. See Kohler Steam Generator IOM.

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