Thermasol Solaris Sauna Cabin – Solar-Powered Outdoor Sauna

Experience a new era of outdoor relaxation with the Solaris Sauna Cabin from Thermasol, the world’s first fully solar-powered, off-grid sauna available in the United States. Designed for homeowners seeking sustainable luxury, Solaris delivers a traditional sauna experience without requiring a direct electrical connection. Integrated solar panels and battery storage provide the freedom to install your sauna virtually anywhere the sun shines, creating a wellness retreat that blends innovation, independence, and environmental responsibility.

Modern Design Inspired by Nature

The Thermasol Solaris Sauna Cabin combines contemporary European styling with premium materials to create a striking outdoor centerpiece. A solar-tinted panoramic glass wall fills the interior with natural light while maintaining privacy, allowing you to enjoy beautiful outdoor views during every session. Durable UV-resistant Tile Oak cladding enhances both the interior and exterior, while brushed alder benches add warmth, comfort, and a refined finish that elevates the entire sauna experience.

Efficient Performance Without Compromise

Despite its off-grid operation, Solaris delivers the authentic heat and steam sauna enthusiasts expect. A high-efficiency electric heater works seamlessly with the integrated solar power system, providing consistent, restorative warmth while maximizing energy efficiency. Available in both small and medium configurations, the sauna comfortably accommodates two to five people, making it ideal for private retreats, vacation properties, lakefront homes, and luxury outdoor living spaces.

Turnkey Luxury for Any Outdoor Setting

Designed for convenience, the Solaris Sauna Cabin arrives fully assembled and ready for placement, eliminating lengthy construction or complicated installation. Integrated LED lighting, premium finishes, and advanced solar technology create a complete wellness environment that can be enjoyed year-round. Recognized by TIME as one of the Best Inventions of 2025, Solaris represents a breakthrough in sustainable outdoor wellness, offering unparalleled freedom to enjoy the benefits of sauna bathing wherever life takes you.

Solaris Sauna Cabin Features:

Capacity: Small (2–3 people) / Medium (4–5 people)
Exterior Dimensions: Small: 86″ L × 60″ W × 97″ H | Medium: 86″ L × 86″ W × 97″ H
Interior Material: Tile Oak with brushed alder benches
Exterior Finish: Tile Oak, UV-resistant
Glass Type: Tinted panoramic glass wall + standard glass door
Heater Included: Harvia Delta 3.6 kW (Wi-Fi enabled)
Control System: Xenio CX170 digital control panel
Power Source: Solar panels with battery pack (off-grid operation)
Lighting: Integrated LED lighting
Assembly: Ships fully assembled
Country of Origin: Finland

Download Solaris Sauna Spec Sheet