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ThermaSol PROIII-1200 Steam Generator Pro Series Ultimate

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Regular price $5,383.00 | Save $-5,383.00 (Liquid error (sections/product-template line 237): divided by 0% off)

PRO Series II Ultimate Steam Shower Generator, 24kW w/Fast Start, PowerFlush and Smart Steam Introducing the ThermaSol PROIII-1200, a 24kW home steam shower generator engineered for steam baths spanning 751 to 1200 adjusted cubic feet (ACF). Boasting Constant Steam, Split...


PRO Series II Ultimate Steam Shower Generator, 24kW w/Fast Start, PowerFlush and Smart Steam

Introducing the ThermaSol PROIII-1200, a 24kW home steam shower generator engineered for steam baths spanning 751 to 1200 adjusted cubic feet (ACF). Boasting Constant Steam, Split Tank, Fast Start, and PowerFlush exclusive technologies, this generator epitomizes the pinnacle of innovation. ThermaSol's PRO Series Steam Shower Generators seamlessly merge cutting-edge technology with ThermaSol's renowned durability, performance, and efficiency, ensuring an unparalleled steam shower experience every time. A must-have for any bathing enthusiast, The PROIII Series sets a new standard with its advanced cleaning system, stainless steel drain pan, and exclusive Smart Steam technology, patented to eliminate temperature fluctuations.

Please note that the required control package is sold separately.

The ThermaSol PROIII-1200 generator is purpose-built for home steam rooms ranging from 751 to 1200 adjusted cubic feet (ACF). Operating on a 24kW power supply, the PROIII-1200 steam bath generator accommodates voltages within the 208V-240V range, configured for single-phase (1-PH) usage.

Constructed with enduring stainless-steel materials, the PROIII-1200 boasts professional-grade heating elements, an advanced PowerFlush self-cleaning system, Smart Steam temperature control, Fast Start technology, a stainless-steel drain pan, and an array of other features.

PRO Series generators are meticulously engineered to deliver consistently pleasurable bathing experiences. The Smart Steam feature ensures a steady steam delivery devoid of lags, bursts, or temperature fluctuations, while FastStart technology accelerates heat-up times.

Designed with a split tank configuration, the PROIII-1200 guarantees unit longevity by segregating the heating function from the water feed function. Additionally, the generator incorporates the PowerFlush pressurized inner tank cleaning system, mitigating harmful sediment buildup.

Equipped with advanced CAN Bus technology, ThermaSol PRO Series generators facilitate reliable two-way communication between the generator and the control unit.

Compatible with a range of controls including Thermatouch, Signatouch, Microtouch, Signature Control, Easy Start, Wellness Package, and Digital Shower Package, the PROIII-1200 offers flexibility to tailor controls to individual bathing preferences.

With a design accommodating various steam shower accessories such as Serenity, Light, Sound, and Rainhead, the PROIII-1200 ensures easy installation and customization.

Installation versatility is further enhanced by the PROIII-1200's capability to be positioned up to fifty feet away from the steam shower enclosure, making it suitable for placement in closets, vanity cabinets, climate-controlled attics, and basements.

Backed by ThermaSol's limited lifetime warranty and full serviceability, the PROIII-1200 provides peace of mind. Additionally, ThermaSol steam generators are UL and CSA listed, ensuring compliance with safety standards.

Note: Generator sizing is based on Thermasol's "Simple Sizing" theory, calculating Cubic Feet as Length multiplied by Width multiplied by Height, with no adjustments for materials.


  • Constant steam flow
  • Constant steam rate
  • No steam lag
  • No steam burst
  • Smart Steam Technology (patented) - eliminates temperature fluctuations
  • FastStart Technology (exclusive) - steam in seconds, not minutes
  • PowerFlush Technology (exclusive) - pressurized inner tank system to remove sediment
  • Works with HydroVive and Serenity systems
  • Two-way digital CAN-bus Technology (exclusive)
  • Split Tank longevity through design
  • Includes stainless steel drain pan
  • Pre-plumbed safety relief valve
  • 1/2" union to connect to steam line
  • Braided stainless steel water connector
  • 240V/1PH operation
  • For steam rooms 751 to 1200 adj. cu. ft.
  • Superior heating elements-Incoloy low watt density
  • Stainless Steel construction
  • Designed, engineered, and crafted in the U.S.A
  • Dimensions: 18" L x 23"W x 14" H
  • Lifetime Warranty


  • 24kW Steam generator
  • Stainless steel drain pan
  • 3/8" braided stainless steel hose & fitting
  • In-line water screen kit
  • Pre-plumbed safety relief valve
  • Steamhead housing and cable kit
  • 50' CAN-bus cable for the controller
  • Installation instructions
  • Static cling warning label
  • Warranty


Kilowatt Rating24 kW
Maximum Cubic Feet1200 ACF
Heater Weight48 lbs
Water Inlet3/8" Compression
Steam Outlet1/2" NPT
Drain Pan3/4" NPT
Safety ValvePre-Plumbed
Electrical ConnectionHardwired


Installation Manual

Install Diagram

Specification Sheet



Shipping cost to USA: FREE

Processing time: 5-7 business days.

Shipping time: 2-5 business days.


We have a 30 day return policy meaning you have 30 days from receiving your order to request a return. If you wish to return your order please contact us within 30 days and we will provide you instructions on how and where to return your order.

ThermaSol PROIII-1200 Steam Generator Pro Series Ultimate

ThermaSol PROIII-1200 Steam Generator Pro Series Ultimate

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