
Product Information
Experience exceptional steam performance with the ThermaSol DS-650 Day Spa Series 20kW Steam Bath
Generator, designed for day spas and hotels.
This high-powered system efficiently operates up to four steam enclosures, supporting a total of 2,600
adjusted cubic feet (ACF) for consistent and optimal steam distribution.
Constructed with durable stainless steel, featuring a split-tank design for enhanced longevity, and an
advanced steam distribution module.



Product Features
The ThermaSol DS-650 Day Spa Series 20kW Steam Generator is designed for day spas and hotels, offering high-powered and consistent steam generation.
Built with a non-pressurized vessel and an industrial-grade, serviceable heating element, ensuring efficient and uninterrupted steam production.
Constructed with a stainless steel tank inside and out, corrosion-resistant electronic components, and a large-capacity steam chamber.

ThermaSol DS-650 Day Spa Series
High-Powered 20kW Steam Output:
Designed for day spas and hotels, the DS-650 delivers exceptional steam performance for up to four steam
enclosures.
Durable Stainless Steel Construction:
Built with stainless steel inside and out, the split-tank design enhances longevity, corrosion
resistance, and consistent steam output.
Versatile Multi-Room Steam Control:
The integrated steam distribution module allows for independent or simultaneous steam delivery to
multiple rooms.
Effortless Installation & Dependable Performance:
Designed for remote installation up to 50 feet, featuring a non-pressurized vessel, integral drain pan
with 3/4” NPT fitting.
Premium High-Capacity Steam Solution for Spas & Resorts
The ThermaSol DS-650 Day Spa Series 20kW Steam Bath Generator is built to meet the demands of day spas and hotels, delivering exceptional steam performance across multiple enclosures. Engineered with premium materials and cutting-edge technology.

20kW High-Performance Heating Element
Designed for large-scale spa environments, the industrial-grade heating element ensures fast heat-up times and consistent steam output.

Multi-Zone Steam Distribution
The advanced steam distribution system allows steam to be delivered to two, three, or four enclosures, supporting independent.

Heavy-Duty Stainless Steel Build
Constructed with stainless steel inside and out, ensuring long-lasting durability, corrosion resistance, and dependable steam performance.

Extended Remote Installation Capability
Designed for versatile placement, the DS-650 can be installed up to 50 feet away from the steam enclosures.
What’s Included?
- 1 Generator
- In-Room Controls (2, 3, or 4)
- Commercial Steamheads (2, 3, or 4)
- Installation Manual
- Limited 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 | DS-650 |
---|---|
Minimum Adjusted Cubic Feet | 1300 |
Maximum Adjusted Cubic Feet | 2600 |
Kilowatt Rating (KW) | 20 KW |
Shipping Weight (Lbs.) | 46 lbs |
AC Voltage | 240V AC |
Phase | Single Phase |
Nominal Amperage | 2 Circuits, 46 Amps Each |
Recommended Protective Device | 2 Circuits, 50 Amps Each |
Recommended Minimum Copper Wire Supply | 2 Circuits, 8 AWG Each |
Water Supply Connection | 3/8" NPT |
Generator Steam Line Connection | 1/2" NPT |
Steam Head Connection | 1/2" NPT |
Safety Relief Valve Connection | 3/4" NPT |
Safety Relief Valve PSIG | 15 PSIG |
Control "Rough In" Cut Out | 1-1/16" |
Generator Control Connection | 6 Pin, Snap-In Connector |
Generator Control Cable | 50', 6 Conductor, 22 AWG, Shielded Cable |
Width | 18-3/4" |
Depth | 13-3/4" |
Height | 16" |
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 many steam enclosures can the DS-650 support?

The ThermaSol DS-650 is designed to efficiently power two, three, or four steam enclosures simultaneously, providing consistent and even steam distribution across all rooms.
What is the maximum capacity of the DS-650?

The DS-650 steam generator is built to support steam enclosures with a total volume of up to 2,600 adjusted cubic feet (ACF), making it ideal for large-scale spas and hotel steam rooms.
Can the DS-650 be installed at a distance from the steam rooms?

Yes, the DS-650 can be installed up to 50 feet away from the steam rooms, offering greater flexibility in placement while maintaining peak steam efficiency.
What materials are used in the construction of the DS-650?

The DS-650 is constructed with stainless steel inside and out, incorporating a split-tank design and corrosion-resistant electronic components to ensure durability, longevity, and reliable performance in high-moisture environments.
Does the DS-650 require a separate drain pan?

No, the DS-650 includes an integral drain pan with a 3/4” NPT fitting, simplifying the installation process while ensuring efficient and safe drainage for continuous operation.