ThermaSol

ThermaSol Astra Sauna Cabin 4-Person Indoor Sauna | Semi-Panoramic Glass Sauna

4.7(6 reviews)

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.

Options

White Glove Delivery Available

Specifications

Brand: ThermaSol
Category: Sauna
Capacity: 3–4 people
Type: Cabin
Placement: Indoor
Door Options: 1 Door(Right Side), 1 Door(Left Side)

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

• 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.