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Steamist TotalSense Series 12kW Steam Shower Generator | TSG-12

Sale price$2,852.50 USD Regular price$4,075.00 USD
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Color/Finish: Stainless Steel (208V-1PH)


Steamist TotalSense Series 12kW Steam Shower Generator | TSG-12 

The Steamist TSG-12 is designed for home steam rooms with dimensions up to 550 adjusted cubic feet (ACF).


The TSG-12 steam shower generator is equipped with a durable stainless-steel tank, industrial-grade heating elements, durable electronic components and parts, modular snap-in connections, and a variety of other noteworthy features.


Steamist Total Sense TSG steam generators are designed to provide years of reliable, efficient, and worry-free operation. The TSG-12 steam unit is crafted of corrosion-resistant stainless-steel for long-lasting strength and durability.


The TSG-12 steam generator is equipped with the innovative InstaMist feature which heats the steam shower enclosure quickly and efficiently. The unit includes SteadySteam technology which maintains the user's temperature preferences and prevents unexpected temperature fluctuations.


The Steamist TSG-12 steam room generator uses less than one gallon of water during a typical 20-minute steam shower session, making it both economical and eco-conscious.


The compact TSG-12 steam shower unit can be installed conveniently out of sight in closets, vanities, insulated attics or basements.


The Steamist TSG-12 12kW steam generator is available in 208V, single-phase (TSG 1221) three-phase (TSG 1223), and 240V, single-phase (TSG 1220) and three-phase (TSG 1222) configurations.


Steamist Total Sense Series generators operate one or more of Steamist's Total Sense Spa Options for a luxurious home spa experience.


The Steamist TSG-12 steam bath generator requires the use of a Steamist digital control or control package for operation. Select the available control with features that best suit your bathing preferences.


Steamist TSG Series generators have the flexibility to be linked in tandem to accommodate larger steam rooms.


We recommend the available Steamist Auto Drain Valve which automatically drains the steam shower system after each use. The Auto Drain Valve helps prevent harmful mineral buildup and calcification of the heating elements and reservoir of the unit. For added convenience, the Auto Drain may be used with the available Steamist Generator Drain Pan.


The Steamist TSG-12 residential steam shower generator carries a limited lifetime warranty and is fully serviceable. Steamist steam generators are UL and CUL listed for your safety.


  • 12kW Steam bath generator, 17.75"L x 7.5"W x 15.5"H
  • 6-pin, 6-wire control cable, 35' long with "snap-in" connectors
  • Installation and operation manual
  • Limited warranty


  • For steam baths sized from 451 to 550 adjusted cubic feet
  • Available in 240V and 208V operation
  • Stainless steel tank
  • SteadySteam technology with 3-stage, industrial grade heating element
  • Modular "snap-in" control connections
  • Durable electronic components
  • Electronic water-level control system
  • Low voltage safety control circuits
  • Solid-state circuitry
  • Available Auto Drain automatic draining system
  • Selectable InstaMist technology standard
  • Optional tandem operation (up to 4 generators)
  • Operates with inside/outside shower, on/off, time/temperature controls
  • Diagnostic LED Displays
  • Full port drain valve
  • ASME safety valve
  • UL 499
  • UL/CUL Listed
  • City of LA - Approved
  • City of New York - M.E.A. Approved


Model                       TSG-12
Minimum Adjusted Cubic Feet                     451
Maximum Adjusted Cubic Feet                     550
Shipping Weight                     41 lbs
Kilowatt Rating                     12.0 kw
Electrical Specifications                     Electrical Chart
Water Supply Connection                     3/8” Compression Connection
Generator Steam Line Connection                     3/4” NPT
Steam Head Connection                     3/4” NPT
Drain Connection                     1/2" NPT
Safety Relief Valve Connection                     3/4" NPT
Safety Relief Valve                     15 PSIG
Control "Rough In" Cut Out                     1-1/2” Diameter
Generator Control Connection                     6-Pin, Snap-In Connector
Generator Control Cable                  35’, 6-Conductor, 22 AWG, Shielded Cable
Width                     17-3/4"
Depth                      7-1/2"
Height                     15-1/2"
Clearance Width                     23-3/4" (30-3/4" w/ Auto Drain)
Clearance Depth                     19-1/2"
Clearance Height                      22"



Plumbing Installation Manual

Electrical Installation Manual

Wiring Diagram


Residential Steam Bath Generators

Steamist, Inc. (“Steamist”) warrants to the original consumer purchaser that the parts of its residential steam bath generator will be free from defects in materials and workmanship for as long as the original consumer purchaser owns the home in which the steam bath was originally installed.


Residential Shower Valve Model TSSH

Steamist warrants to the original consumer purchaser that its residential shower valve model TSSH will be free from defects in materials and workmanship for a period of five (5) years from the date of purchase.


Residential Controls, Spa Options And Accessories (Excluding Sauna Controls And Accessories)

Steamist warrants to the original consumer purchaser that its controls, spa options and accessories will be free from defects in materials and workmanship for a period of two (2) years from the date of purchase.

For two (2) years following the date of purchase by the original consumer purchaser, or for five (5) years for the residential shower valve model TSSH, and with prior approval by Steamist, Steamist will pay for labor and/or freight costs for repair/replacement associated with warranty coverage. Thereafter, Steamist will not pay for labor or freight costs associated with removal/repair/replacement of products covered by this warranty.


Commercial Warranty

Steamist warrants to the commercial purchaser that the parts of its HC, Hospitality models HTSG and HSMP, Day Spa models DTSG and DSMP steam generators, steam equipment, controls, accessories and all commercial Sauna heaters and Sauna controls will be free from defects in materials and workmanship for a period of one (1) year from the date of purchase.

For commercial purchasers, Steamist will, with prior approval by Steamist, pay for labor and/or freight costs associated with warranty coverage for ninety (90) days from the date of purchase.

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