Description
The ThermaSol Astra Sauna Cabin is a refined 3–4 person indoor sauna designed to blend minimalism, glass, and natural wood into a tranquil wellness space.
Featuring a semi-panoramic glass façade and corner-friendly layout, the Astra creates an open, airy indoor environment while maintaining excellent thermal efficiency. Constructed with brushed Tyrol wood panels and thermo-aspen seating, this model combines sculptural beauty with reliable performance.
Powered by a Harvia Virta 9kW heater with Wi-Fi control, the Astra delivers consistent heat, steam, and energy-efficient operation.
Contemporary Glass Design
The Astra features transparent glass elements for a contemporary interior aesthetic.
• Semi-panoramic tempered glass panels
• Frameless flush-mount glass door
• Corner-friendly indoor configuration
• Maximizes natural light
• Modern Scandinavian styling
Creates a serene and spacious indoor wellness retreat.
Unrivaled Comfort
Designed for modern indoor relaxation and balance.
• Semi-panoramic glass front layout
• 24” deep thermo-aspen benches
• Smooth, moisture-resistant surfaces
• Supportive thermo-aspen backrests
• Spacious interior footprint
• Comfortably accommodates 3–4 bathers
The open glass design enhances visibility while maintaining a warm, immersive sauna experience.
Premium Indoor Construction
Premium Indoor Construction
• Brushed Tyrol wood panel construction
• Thermo-aspen benches and backrests
• Multi-layer sustainable wood fiber insulation
• Superior heat retention and efficiency
• Stable, moisture-resistant materials
Engineered for even heat distribution and long-term indoor performance.
Advanced Heating System
• Harvia Virta 9kW sauna heater with Wi-Fi
• Harvia Xenio CX45 digital control with Wi-Fi
• Harvia AC3020 sauna stones (3 boxes)
• Efficient heat and steam generation
Provides reliable performance with precise temperature control.
Illumination System
RGB LED Color Therapy Lighting
Integrated lighting enhances the indoor atmosphere.
• RGB LED color therapy system
• Customizable lighting control
• Recessed interior illumination
• Adjustable ambiance settings
Allows you to create a calming or energizing environment.
Features
• Semi-panoramic glass front design
• Brushed Tyrol wood panel construction
• Thermo-aspen benches & backrests
• Multi-layer insulation system
• Harvia 9kW heater with Wi-Fi
• RGB LED color therapy lighting
• Indoor corner-friendly layout
• 3–4 person capacity
• Designed and crafted in the U.S.A.
• 1-year warranty
What’s Included
Sauna Structure Package
• Flat-packed indoor sauna cabin
• Brushed Tyrol wood panel structure
• Thermo-aspen benches & backrests
• Semi-panoramic glass panels
• Flush tempered glass door
• Installation instructions
• 1-year warranty
Heating System Package
• Harvia Virta 9kW Sauna Heater with Wi-Fi
• Harvia Xenio CX45 Digital Control with Wi-Fi
• Harvia AC3020 Sauna Stones (3 Boxes)
Specifications
| Model | ASTRA SAUNA CABIN |
| Capacity |
4 Persons |
| Exterior Dimensions |
86.6” W x 86.6” D x 83” H |
| Interior Material |
Thermo-Aspen |
| Construction Material |
Brushed Tyrol Wood Panels |
| Lighting |
RGB LED Color Therapy with Control |
| Exterior Dimensions |
85.4” W x 85.4” D x 83” H |
| Bench Depth |
24” |
| Product Weight |
1323 lbs |
| Shipping Weight |
1543 lbs |
Lighting Specifications
| Operating Voltage | 24VDC |
| Lighting Type |
RGB LED Color Therapy |
Power Supply Specifications
| Input Voltage | 120VAC |
| Heater Power |
9kW |
Technical
ThermaSol Astra Sauna Cabin Spec |
Why Choose the ThermaSol Astra Sauna Cabin?
The Astra Sauna Cabin is ideal for homeowners who want:
• A modern 4-person indoor sauna
• Semi-panoramic glass architectural styling
• Wi-Fi controlled Harvia heating system
• Integrated RGB chromotherapy lighting
• Scandinavian-inspired design
• Energy-efficient indoor performance
It combines minimalist elegance with advanced heating technology to create a serene and contemporary indoor wellness retreat.