🌟Explore! Our Collections for Every Lifestyle 🌟

ThermaSol PROIII-140 Pro Series Ultimate

In Stock

Regular price $3,118.50 | Save $-3,118.50 (Liquid error (sections/product-template line 237): divided by 0% off)

PRO Series II Ultimate Steam Shower Generator, 8kW w/Fast Start, PowerFlush and Smart Steam Introducing the ThermaSol PROIII-140, an 8kW home steam shower generator meticulously crafted for steam baths ranging from 85 to 140 adjusted cubic feet (ACF). This powerhouse...


PRO Series II Ultimate Steam Shower Generator, 8kW w/Fast Start, PowerFlush and Smart Steam

Introducing the ThermaSol PROIII-140, an 8kW home steam shower generator meticulously crafted for steam baths ranging from 85 to 140 adjusted cubic feet (ACF). This powerhouse boasts exclusive technologies like Constant Steam, Split Tank, Fast Start, and PowerFlush, ensuring an unparalleled bathing experience. ThermaSol's PRO Series Steam Shower Generators are synonymous with durability, performance, and efficiency, promising a consistently invigorating steam shower every time. As a standout feature, The PROIII Series showcases an advanced cleaning system, stainless steel drain pan, and the exclusive Smart Steam (patented) technology, setting it apart from the rest by eliminating temperature fluctuations.

Note: Required control package sold separately.

The ThermaSol PROIII-140 is a cutting-edge addition to home steam rooms, tailored for spaces measuring 85 to 140 adjusted cubic feet (ACF). Operating on 208V-240V voltage and a single-phase (1-PH) configuration, the PROIII-140 8kW steam bath generator offers unparalleled performance.

Constructed with durable stainless steel and featuring professional-grade heating elements, the PROIII-140 incorporates an advanced PowerFlush self-cleaning system, Smart Steam temperature control, Fast Start technology, and a stainless steel drain pan, among other innovative features.

Engineered to deliver consistent and enjoyable bathing experiences, PRO Series generators boast Smart Steam technology, ensuring a steady steam output without temperature fluctuations. FastStart technology further enhances the experience by reducing heat-up times.

The unit's split tank design separates the heating function from the water feed function, promoting longevity. Equipped with CAN Bus technology, PRO Series generators enable reliable two-way communication between the unit and the control panel.

Compatible with a range of control options, including the Thermatouch, Signatouch, Microtouch, Signature Control, Easy Start, Wellness Package, and Digital Shower Package, the PROIII-140 allows for customization based on individual preferences.

Designed for easy installation of steam shower accessories such as the Serenity, Light, Sound, and Rainhead, the PROIII-140 can be installed up to fifty feet away from the steam shower enclosure, facilitating versatile placement in closets, vanity cabinets, climate-controlled attics, and basements.

Backed by ThermaSol's limited lifetime warranty and full serviceability, PROIII-140 steam generators adhere to UL and CSA safety standards for peace of mind.

(Note: Generator sizing is based on Thermasol's "Simple Sizing" theory of Cubic Feet = Length X Width X 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 85 to 140 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


  • 8kW 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
  • 208-240 volt power cord (5ft)
  • 50' CAN-bus cable for the controller
  • Installation instructions
  • Static cling warning label
  • Warranty


Kilowatt Rating8 kW
Maximum Cubic Feet140 ACF
Heater Weight44 lbs
Water Inlet3/8" Compression
Steam Outlet1/2" NPT
Drain Pan3/4" NPT
Safety ValvePre-Plumbed
Electrical ConnectionNEMA 6-50P

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-140 Pro Series Ultimate

ThermaSol PROIII-140 Pro Series Ultimate

Customer Reviews

Be the first to write a review

Recently Viewed Products

What are you looking for?

Your cart