PRO Series Generators
Delivering the most advanced, dependable steam shower system for 65 years, providing you with a lifetime wellness experience.Steam… Simple as I-II-III
As one of the industry’s most technologically advanced and robust steam generators today, the PRO Series has set the benchmark for achieving modern wellness at home.
ThermaSol Exclusive Features
Combining revolutionary smart home technology with six decades of engineering expertise, ThermaSol has created the most advanced steam generator available on the market today. Delivering the highest quality steam shower experience, ThermaSol’s PRO Series generators provide constant steam, temperature control and care-free maintenance, all backed by a Lifetime Warranty.

Smart Steam Technology
Available on ProSeries™️ III models only. SmartSteam produces the precise volume of steam required to maintain your desired room temperature while providing a quiet, relaxed experience.

SteamVection Technology
State-of-the-art floor-to-ceiling temperature uniformity within the steam shower. No more variable heat ranges. Also allows the closest proximity to the outlet to give you more usable shower space.

Split Tank Technology
Provides steam at a constant rate while ensuring trouble-free reliability! Water is pre-heated in the steam generator’s water reservoir and passes to the boiling side on demand.

Powerflush Cleaning
Finally, an effective way to automatically purge calcification build-up from the inner tank of the steam generator. ThermaSol’s exclusive Powerflush technology uses concentrated household water pressure with integrated speed slots to sweep the bottom of the internal tank, removing build-up effectively and efficiently.

LIFETIME WARRANTY
ThermaSol offers the best warranty program in the industry—a Lifetime Parts & Labor Warranty, no questions asked!
Generator Comparison
![]() Pro Series I | ![]() Pro Series II | ![]() Pro Series III |
|
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ThermaSol Exclusive No Questions Asked Lifetime Warranty Lifetime Parts & Labor Warranty. | |||
ThermaSol Exclusive Latest Digital Technology The Controller Area Network (CAN Bus) is the nervous system, enabling intelligent communication through all connected ThermaSol devices. | |||
ThermaSol Exclusive Constant Steam at a Constant Rate Consistent steam delivered into the shower space eliminating "bursts" or "lag" often found with other manufacturers. | |||
ThermaSol Exclusive Split Tank Technology Exclusive internal tank design providing reliability and longevity. | |||
ThermaSol Exclusive FastStart Technology Steam is produced in a matter of seconds for an efficient and effective way of getting up to your set desired temperature. | |||
ThermaSol Exclusive PowerFlush The Most Advanced Cleaning System Most competitors use a drain gravity system which does not completely eliminate sediment. ThermaSol uses a pressurized inner tank system to remove sediment. | |||
Custom Stainless Steel Drain Pan Providing protection and peace of mind. | |||
Patented Smart Steam - The Ultimate in Temperature Control Smart Steam combines the ultimate intelligence technology providing consistent steam temperature control and energy efficiency—truly an unparalleled steam therapy experience. |

Learn More
Selecting the Correct Size Steam Generator
Simple Sizing Formula: LxWxH = Cubic Feet
For ceilings up to 8 feet, follow the formula of the calculator to select your generator.
For 8-9 foot ceilings, choose the next size generator.
For 9-10 foot ceilings, go up 2 generator sizes.
Over 10 feet, please call us for sizing.
All interior wall material is irrelevant thanks to ThermaSol’s exceptional engineering.
What Size/Model Generator Do I Need?
Finding your optimum generator size is as easy as measuring your shower.
Step 1: Determine cubic feet below.
Step 2: Find your generator model using the chart below.
Step 3: For 8-9 ft ceilings, choose the next generator size.
For 9-10 ft ceilings, go up 2 generator sizes.
Over 10 ft., please call us for sizing.
Shower Size | Available Pro Series Generators |
---|---|
Up to 84 cubic ft. | PROI-84; PROII-84; PROIII-84; |
85-140 cubic ft. | PROI-140; PROII-140; PROIII-140; |
141-240 cubic ft. | PROI-240; PROII-240; PROIII-240; |
241-395 cubic ft. | PROI-395; PROII-395; PROIII-395; |
396-575 cubic ft. | PROII-575; PROIII-575; |
576-750 cubic ft. | PROII-750; PROIII-750; |
751-1200 cubic ft. | PROII-1200; PROIII-1200; |
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