Skip to product information
1 of 6

Sauna One

ThermaSol PROIII-750

ThermaSol PROIII-750

PRO Series II Ultimate Steam Shower Generator, 20kW w/Fast Start, PowerFlush and Smart Steam

Model: PROIII-750

SKU: PROIII-750

Featuring Constant Steam, Split Tank, Fast Start, and PowerFlush exclusive technologies, the ThermaSol PROIII-750 is a 20kW home steam shower generator designed for steam baths with dimensions 576 to 750 adjusted cubic feet (ACF). ThermaSol's PRO Series Steam Shower Generators combine the latest technology with ThermaSol durability, performance, and efficiency to ensure a consistent steam shower experience every time. A welcome addition for any bathing enthusiast, The PROIII Series raises the bar with an advanced cleaning system, stainless steel drain pan and is the only model to offer the ultimate Smart Steam (patented) technology, eliminating temperature fluctuations.

Required control package sold separately

Regular price $7,390.00 USD
Regular price Sale price $7,390.00 USD
Sale Sold out
Tax included.
Voltage & Phase
View full details
  • Description
  • Features
  • Includes
  • Specifications
  • Technical

The all-new ThermaSol PROIII-750 generator is engineered for home steam rooms with dimensions 576 to 750 adjusted cubic feet (ACF). The PROIII-750 20kW steam bath generator accepts voltage in the range of 208V-240V, single-phase (1-PH) configuration.


The ThermaSol PROIII-750 generator includes durable stainless-steel construction, professional-grade heating elements, advanced PowerFlush self-cleaning system, Smart Steam temperature control, Fast Start technology, stainless-steel drain pan, and a variety of other features.


PRO Series generators are engineered to provide the most consistent, pleasurable bathing experiences. The innovative Smart Steam feature helps ensure that steam is delivered at a constant rate without lags, bursts, and temperature fluctuations. The included FastStart technology provides quicker heat-up times.


The steam unit's split tank design helps ensure the longevity of the unit by separating the heating function from the water feed function. The generator includes the PowerFlush pressurized inner tank cleaning system which helps prevents harmful sediment build-up.


ThermaSol PRO Series generators are equipped with advanced CAN Bus technology for reliable two-way communication between the generator and the control.


ThermaSol PRO Series generators are compatible with the Thermatouch, Signatouch, Microtouch, Signature Control, Easy Start, Wellness Package, and Digital Shower Package. Select the available control or control package with features that best suits your bathing preferences.


The PROIII-750 is designed so that steam shower accessories such as the Serenity, Light, Sound, Rainhead can easily be installed.


The PROIII-750 steam shower unit can be installed up to fifty feet away from your steam shower enclosure. Common installation locations include closets, vanity cabinets, climate-controlled attics, and basements.


The PROIII-750 residential steam generator carries ThermaSol's limited lifetime warranty and is fully serviceable. ThermaSol steam generators are UL and CSA listed for your safety.


Note: Generators sizing are listed based on Thermasol's theory on "Simple Sizing" of Cubic Feet = Length X Width X Height. 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 576 to 750 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

  • 20kW 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

ModelPROIII-750
Kilowatt Rating20 kW
Maximum Cubic Feet750 ACF
Amperage92
Heater Weight48 lbs
Water Inlet3/8" Compression
Steam Outlet1/2" NPT
Drain Pan3/4" NPT
Safety ValvePre-Plumbed
Electrical ConnectionHardwired
Width18"
Depth23"
Height14"

Installation and operation manual:

Parts and accessories diagram:

PRO Series Overview