
Product Information
Elevate your shower to a spa-like experience with the ThermaSol PROIII-240 PRO Series II Ultimate Steam
Shower Generator.
Designed for steam rooms up to 240 adjusted cubic feet, this high-performance 10kW generator provides
consistent and reliable steam output for ultimate relaxation.
Equipped with FastStart technology for quick heat-up, Smart Steam for precise temperature control, and
the PowerFlush system to prevent sediment buildup, it ensures superior performance and lasting
durability for a luxurious home spa environment.



Product Features
The ThermaSol PROIII-240 delivers a steady, uninterrupted steam experience with patented Smart Steam technology, ensuring precise temperature control and comfort.
Featuring exclusive FastStart technology, it provides rapid steam generation, while the advanced PowerFlush system prevents sediment buildup for consistent performance and minimal maintenance.
With two-way CAN-bus technology, the PROIII-240 seamlessly integrates with HydroVive, Serenity systems, and other ThermaSol accessories for a personalized steam shower experience.

ThermaSol PROIII-240 PRO Series II Ultimate Steam Shower Generator
Rapid Steam Production with FastStart Technology:
Enjoy steam in moments with FastStart technology, offering quick and efficient heat-up for a luxurious
relaxation experience.
Reliable and Consistent Steam Output:
The PROIII-240 provides steady, burst-free steam flow, ensuring a serene and spa-like atmosphere in your
steam shower.
Durable Design for Exceptional Longevity:
Crafted with corrosion-resistant stainless steel and low-watt density Incoloy heating elements, this
generator is built for lasting performance.
Enhanced Integration for Customizable Control:
Featuring two-way CAN-bus technology and Smart Steam functionality, the PROIII-240 effortlessly connects
with compatible controls and accessories for a tailored steam shower experience.
Additional Features
Experience cutting-edge innovation and superior performance with the ThermaSol PROIII-240 PRO Series II Ultimate Steam Shower Generator. Built for dependability, convenience, and unmatched comfort, it combines advanced technology and durable construction to transform your steam shower into a premium spa-like haven.

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?
- 10kW 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

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-240 |
Kilowatt Rating | 10 kW |
Maximum Cubic Feet | 240 ACF |
Amperage | 46 |
Heater Weight | 44 lbs |
Water Inlet | 3/8" Compression |
Steam Outlet | 1/2" NPT |
Drain Pan | 3/4" NPT |
Safety Valve | Pre-Plumbed |
Electrical Connection | NEMA 6-50P |
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
How does FastStart technology improve the steam experience?

FastStart technology ensures the PROIII-240 generates steam within seconds, providing a quick and efficient way to start your steam shower experience.
Is the PROIII-240 easy to install?

Yes, the PROIII-240 is designed for flexible installation and can be placed up to 50 feet away from the steam shower, allowing for convenient positioning in basements, closets, or other spaces.
What benefits does the split tank design offer?

The split tank design separates the heating and water feed functions, minimizing wear and extending the generator’s durability for long-term performance.
Which control systems are compatible with the PROIII-240?

The PROIII-240 works seamlessly with ThermaSol control systems such as Thermatouch, Signatouch, Microtouch, Signature Control, and Easy Start, offering personalized control options.
Is the PROIII-240 compatible with other ThermaSol accessories?

Yes, the PROIII-240 integrates effortlessly with HydroVive, Serenity systems, and additional ThermaSol accessories, enhancing your steam shower with advanced features and functionality.