Item # bci2865200

Kohler Invigoration 18kW Tandem Residential Steam Generator with Fast-Response, Constant Steam and Power Clean

Model: K-5539-NA

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Product Overview

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Product Features:

  • Covered under Kohler's limited three year warranty
  • Invigoration 18 kW tandem steam generator
  • Steam generator built out of stainless steel
  • Stainless steel is insulated which maintains the temperature yet the case remains safe to touch
  • Fast Response technology produces steam in just one minute
  • Power Clean technology automatic cleaning feature at the touch of a button
  • 550 cubic feet maximum volume rating
  • Compatible with Kohler DTV+ showering systems
  • Steam generator control unit and drain pan are not included

Product Technologies:

  • Fast-Response: Produces steam within 60 seconds of being turned on
  • Power Clean: One touch automatic cleaning and safe maintenance
  • Constant Steam: Minimizes temperature fluctuations by providing a constant stream of steam

Product Specifications:

  • Individual Unit's Height: 11-3/4" (measured from top to bottom)
  • Individual Unit's Width: 8-3/8" (measured from left to back)
  • Individual Unit's Length: 19-1/8" (measured from front to back)
  • One dedicated circuit required
  • Voltage: 240V
  • Amperage: 120A
  • Frequency: 50/60Hz


  • K-5525: 5kW - 56 Cubic feet version
  • K-5526: 7kW - 112 Cubic feet version
  • K-5529: 9kW - 240 Cubic feet version
  • K-5531: 11kW - 317 Cubic feet version
  • K-5533: 13kW - 447 Cubic feet version
  • K-5535: 15W - 500 Cubic feet version
  • K-5539: 18kW - 550 Cubic feet version
  • K-5543: 22kW - 634 Cubic feet version
  • K-5546: 26kW - 894 Cubic feet version
  • K-5547: 30kW - 1,000 Cubic feet version

About Kohler

    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.

This product is listed under the following manufacturer number(s):

Dimensions and Measurements

Drain Connection
.375 in.
11.75 in.
19.125 in.
Max Room Volume
550 cu. ft.
Water Connection
8.375 in.

Characteristics and Features

Stainless Steel

Manufacturer Technology

Kohler Technologies
Constant Steam, Fast-Response, Power Clean

Electrical and Operational Information

60 Hertz

Warranty and Product Information

Manufacturer Warranty
3 Year Limited