
Product Information
Upgrade your shower to a spa-like sanctuary with the ThermaSol PROIII-575 PRO Series II Ultimate Steam
Shower Generator.
Perfect for steam rooms up to 575 adjusted cubic feet, this robust 15kW generator provides reliable and
consistent steam output for unmatched relaxation.
Equipped with FastStart technology for rapid heat-up, Smart Steam for precise temperature control, and
the PowerFlush system to prevent sediment buildup, it ensures exceptional performance and durability for
a premium home spa experience.



Product Features
The ThermaSol PROIII-575 delivers constant, lag-free steam with patented Smart Steam technology, ensuring precise temperature control.
Exclusive FastStart technology provides steam in seconds, while PowerFlush removes sediment for optimal tank performance.
Designed for steam rooms sized 396–575 adjusted cubic feet, it features a split tank for durability, stainless steel drain pan, and pre-plumbed safety relief valve for convenience.

ThermaSol PROIII-575 PRO Series II Ultimate Steam Shower Generator
Rapid Steam Generation with FastStart Technology:
Enjoy the luxury of steam within seconds with FastStart technology, offering quick heat-up and efficient
steam delivery for unmatched relaxation.
Steady and Reliable Steam Output:
The PROIII-575 provides consistent, burst-free steam flow, creating a soothing and spa-like atmosphere
in your steam shower.
Durable Design for Long-Lasting Performance:
Constructed with corrosion-resistant stainless steel and low-watt density Incoloy heating elements, this
generator is engineered for exceptional durability and reliability.
Seamless Integration with Advanced Features:
Equipped with two-way CAN-bus technology and Smart Steam functionality, the PROIII-575 integrates
effortlessly with compatible controls and accessories for a personalized steam experience.
Additional Features
Experience unparalleled innovation and outstanding performance with the ThermaSol PROIII-575 PRO Series II Ultimate Steam Shower Generator. Built for durability, ease of use, and ultimate comfort, it combines state-of-the-art technology and premium construction to transform your steam shower into a personalized spa-like sanctuary.

Rapid Steam Generation
FastStart technology provides steam in seconds, allowing you to enjoy instant relaxation without delay.

Energy Efficiency
Designed with low-watt Incoloy heating elements, the system maximizes energy efficiency while maintaining exceptional performance and reliability.

Enhanced Digital Connectivity
Two-way CAN-bus technology ensures seamless integration between the generator and controls, offering smooth and intuitive operation.

Durable Stainless Steel Build
Constructed with premium stainless steel and low watt-density Incoloy heating elements for exceptional reliability and efficiency.
What’s Included?
- 15kW 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

About ThermaSol
ThermaSol, a US-based pioneer in residential steam showers, has been innovating spa equipment since 1958.
Established by David Altman, the company has been proudly family-operated for three generations and became part of the Harvia family in 2024.
Offering smart showers, steam and sauna systems, and advanced steamheads, ThermaSol is committed to delivering safe, reliable, and eco-friendly multi-sensory spa experiences.


Why Choose Us?
Choose Peak Primal Wellness for a personalized, community-driven approach to health. We prioritize your well-being with high-quality products, tailored solutions, and 24/7 support.
As a family-owned business, we build lasting relationships, offering authentic, effective solutions to help you achieve your wellness goals.
Join our thriving community and embark on a journey toward optimal health with passionate professionals who genuinely care. At Peak Primal Wellness, you're not just a customer—you're family.
Specifications
Model | PROIII-575 |
Kilowatt Rating | 15 kW |
Maximum Cubic Feet | 575 ACF |
Amperage | 69 |
Heater Weight | 48 lbs |
Water Inlet | 3/8" Compression |
Steam Outlet | 1/2" NPT |
Drain Pan | 3/4" NPT |
Safety Valve | Pre-Plumbed |
Electrical Connection | Hardwired |
Width | 18" |
Depth | 23" |
Height | 14" |
Warranty & Returns
Return Policy
To request a return or refund, customers can use our contact form, email info@peakprimalwellness.com, or phone – (877) 689-4898 . Once the product is inspected and confirmed to be in brand new condition, we will initiate the refund, which typically takes 5–7 business days to post back to the original payment method. Refunds can be applied via the customer’s preferred method, including card or bank transfer. Shipping instructions and the return address will be provided upon contacting customer service. Please include photos if the product arrives damaged. Click here to view our complete return policy for more details.
Shipping Policy
Customers may contact us by phone or email anytime to inquire about the status of their order. While we may not always have a tracking link available before the order ships, we are happy to check its current status for you. If an item is never received, please contact us immediately. We will promptly file a claim on your behalf and ship a replacement to ensure you receive your product as soon as possible. Click here to view our complete Shipping policy for more details.
Frequently Asked Questions
What is the benefit of FastStart technology?

FastStart technology allows the PROIII-575 to generate steam almost instantly, ensuring a quick and effortless start to your steam shower experience.
Is installing the PROIII-575 convenient?

Yes, the PROIII-575 is designed for flexible installation and can be installed up to 50 feet away from the steam shower, offering versatile placement options.
What makes the split tank design advantageous?

The split tank design separates water feed and heating functions, reducing wear and ensuring long-lasting reliability for consistent performance over time.
Which control systems can be used with the PROIII-575?

The PROIII-575 is fully compatible with a variety of ThermaSol control systems, including Thermatouch, Signatouch, Microtouch, Signature Control, and Easy Start, for customizable operation.
Does the PROIII-575 work with ThermaSol accessories?

Yes, the PROIII-575 integrates seamlessly with HydroVive, Serenity systems, and other ThermaSol accessories, enhancing your steam shower with advanced features and convenience.