Steamist TSG-12

TotalSense Series 12kW Steam Shower Generator


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

Required operating control sold separately.

Your Price

If you see a lower price on the Steamist TSG-12 steam generator, call us, and we'll match it, plus 10% of the difference!

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.

SteamSaunaBath is proud to be an authorized Steamist partner and offer the best steam showers from Steamist for homes and health clubs.

We guarantee the lowest price. If you see the Steamist TSG-12 generator for sale at a lower price, give us a call, we'll match it! See our guaranteed lowest price policy for details.

SteamSaunaBath is the bathing environment experts. We specialize in steam room and sauna design, sales, installation, maintenance, and repair services. Our half-century of hands-on experience means that we are uniquely qualified to ensure the success of your bathing space and an unparalleled steam bathing experience. Contact a SteamSaunaBath technical bathing specialist to help you build a steam room: (800) 707-2862.

  • 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
  • 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
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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"
Required for Operation

Designed for use with the TSG or SMP steam generators, the Steamist 250 steam shower control package is programmable for two user settings of temperature and duration.

Your Price

The 450 control is compatible with Steamist TSG or SM Plus steam generators, and can operate all Total Sense™ Spa Options.

Your Price

The Steamist 550 is Steamist’s most advanced digital control system. Designed for use with all TSG or SM Plus steam generators, the Steamist 550 can operate with all Total Sense Spa options— AromaSense, ChromaSense, AudioSense, and ShowerSense.

Your Price