The ThermaSol Astra is an indoor traditional sauna cabin with a semi-panoramic glass design and a freestanding corner configuration. The combination of transparent glass, wood cladding, recessed lighting, and tiered seating creates an open interior suitable for a dedicated home sauna or wellness space.

• Indoor traditional sauna cabin
• Designed for approximately three to four people
• Semi-panoramic tempered glass exterior
• Tyrol wood interior wall cladding
• Thermo-aspen benches and backrests
• Harvia Virta 9kW electric heater included
• Harvia Xenio Wi-Fi control included
• Full-spectrum recessed LED lighting
• Left- or right-side doorway configuration
• Flat-packed construction for on-site assembly

• Semi-Panoramic Glass: Transparent tempered glass panels create a more open appearance while retaining the cabin’s corner layout.
• Tyrol Wood Interior: Wood wall cladding provides a natural interior finish accented by inset black trim.
• Thermo-Aspen Seating: Benches and backrests are constructed from thermo-aspen wood.
• Insulated Wall Construction: Multi-layer wood-fiber insulation is incorporated into the wall system to support heat retention.
• Harvia Virta Heater: Includes a 9kW electric sauna heater sized for the Astra cabin.
• Wi-Fi Control: The included Harvia Xenio CX45 control supports temperature and session settings with compatible MyHarvia app connectivity.
• Integrated Lighting: Recessed full-spectrum LED lighting includes independent controls for adjusting the cabin lighting.
• Doorway Selection: Choose the entry orientation that works with your room layout and preferred heater position.

Select the doorway position based on the intended room layout:

• Left-Side Doorway: Entry door is positioned on the left side, with the sauna heater along the right wall.
• Right-Side Doorway: Entry door is positioned on the right side, with the sauna heater along the left wall.

Confirm the selected orientation before ordering. Door orientation may affect electrical planning, room access, and final placement.

• Exterior: Transparent tempered glass with inset black trim
• Interior: Tyrol wood cladding
• Benches and Backrests: Thermo-aspen wood
• Door Handle: Tyrol wood with decorative black trim
• Insulation: Multi-layer wood-fiber wall insulation
• Installation Style: Freestanding indoor sauna
• Assembly: Flat-packed panels assembled at the installation site

Natural wood varies in grain, color, and tone. These variations are normal characteristics of wood construction.

Harvia Virta 9kW Sauna Heater

The Astra package includes a Harvia Virta 9kW electric sauna heater with three boxes of compatible Harvia AC3020 sauna stones.

Harvia Xenio CX45 Control

The included digital sauna control manages temperature, session time, and compatible scheduling functions. Wi-Fi connectivity allows supported functions to be accessed through the MyHarvia app when the system is properly installed and connected.

• 9kW electric sauna heater
• Harvia Xenio CX45 digital control
• Wi-Fi connectivity
• Temperature sensor included
• Three boxes of sauna stones included
• Professional electrical installation required

The ThermaSol Astra includes recessed full-spectrum LED lighting designed to illuminate the cabin interior. Independent lighting controls allow the user to adjust the lighting separately from the sauna heater controls.

• 110V full-spectrum LED lighting
• Recessed installation within the cabin
• Independent lighting controls
• Lighting components included with the sauna package

• ThermaSol Astra flat-packed indoor sauna cabin
• Harvia Virta 9kW electric sauna heater
• Harvia Xenio CX45 digital control with Wi-Fi
• Harvia AC3020 sauna stones — three boxes
• Temperature sensor
• Full-spectrum LED lighting system
• Headrests — two
• Wood platform
• MyHarvia app compatibility
• Installation instructions
• Manufacturer warranty documentation

Sauna Cabin

• Brand: ThermaSol
• Model: Astra Sauna Cabin
• Product Type: Indoor traditional sauna kit
• Capacity: Approximately 3–4 people
• Exterior Material: Transparent tempered glass with inset black trim
• Interior Material: Tyrol wood cladding
• Bench and Backrest Material: Thermo-aspen wood
• Handle Material: Tyrol wood with decorative black trim
• Width: 85.4" (216.9 cm)
• Depth: 85.4" (216.9 cm)
• Height: 83" (210.8 cm)
• Bench Depth: 24" (61 cm)
• Product Weight: 1,323 lbs (600.1 kg)
• Shipping Weight: 1,543 lbs (699.9 kg)
• Installation: Indoor, freestanding

Heater & Lighting

• Heater: Harvia Virta electric sauna heater
• Heater Output: 9kW
• Control: Harvia Xenio CX45 with Wi-Fi
• Sauna Stones: Harvia AC3020, three boxes included
• Lighting: 110V full-spectrum recessed LED

The Astra is designed to sit directly on an existing indoor floor. The installation surface must be level, stable, and water-resistant.

Suitable Flooring

• Concrete
• Ceramic or porcelain tile
• Water-resistant vinyl
• Water-resistant laminate approved for the installation environment

Carpet and moisture-sensitive flooring are not recommended beneath the sauna. An alternative foundation may be required when the existing floor does not meet the manufacturer’s requirements.

Before Delivery

• Verify the doorway and heater orientation selected for the order
• Confirm room dimensions and required installation clearances
• Prepare a level, water-resistant floor
• Confirm there is a clear route from the delivery point to the installation area
• Arrange for qualified assembly and electrical installation
• Review the installation manual before delivery

• A licensed electrician must install and connect the sauna heater and control system
• The Harvia Virta heater requires a dedicated electrical supply
• The LED lighting system requires a 110V electrical connection
• Electrical requirements must be confirmed in the ThermaSol and Harvia installation documentation
• All electrical work must comply with applicable national and local codes
• Do not energize the heater until assembly and electrical installation are complete

• Sauna arrives flat-packed with preassembled panels
• Assembly generally requires at least two adults
• Basic tools are required
• Assembly time varies by site conditions and installer experience
• The sauna is freestanding and may be disassembled and relocated when necessary
• A licensed electrician must complete heater and control connections
• Follow the installation manual and local building requirements

• Free shipping within the contiguous United States (48 states)
• Delivery is scheduled in advance
• Sauna arrives by flatbed freight trailer
• Residential deliveries include carrier offloading and threshold delivery at no additional charge
• A customer-provided forklift or loading dock is not required for qualifying residential delivery
• Commercial deliveries require a customer-provided forklift or loading dock for unloading
• Customers are typically notified approximately two weeks before scheduled delivery
• Customer must ensure the delivery site is accessible and ready to receive the shipment
• Lead time: 4–8 weeks from order date

Threshold delivery does not include moving the sauna panels to the final installation room, assembly, installation, electrical work, or debris removal. Delivery terms may vary for remote, restricted-access, or complex locations.

• Specification Sheet
• Installation Manual

The ThermaSol Astra Sauna Cabin includes a 1-year limited manufacturer warranty. Warranty coverage is provided by ThermaSol and is subject to the manufacturer’s installation, operation, maintenance, and residential or commercial-use requirements.

How many people fit inside the ThermaSol Astra Sauna?

The Astra is designed to accommodate approximately three to four people. Actual seating capacity depends on user size and preferred spacing.

Is the sauna heater included?

Yes. The package includes a Harvia Virta 9kW electric sauna heater, Harvia Xenio CX45 Wi-Fi control, temperature sensor, and three boxes of sauna stones.

Can I select the location of the sauna door?

Yes. The Astra is offered with either a left-side or right-side doorway. The heater is positioned on the wall opposite the selected doorway.

Does the sauna require professional installation?

The cabin requires on-site assembly, and a licensed electrician must install and connect the sauna heater and control system. Additional professional assistance may be appropriate depending on the installation site.

What type of floor is required?

The sauna must be placed on a level, stable, and water-resistant indoor floor. Common suitable surfaces include concrete, ceramic tile, water-resistant vinyl, or appropriate laminate.

Is the ThermaSol Astra portable?

The sauna is freestanding and can be disassembled and relocated. Relocation requires disassembly, safe transport, reassembly, and reconnection by qualified professionals.

What does residential threshold delivery include?

For qualifying residential locations, the freight company unloads the shipment and delivers it to the first covered threshold or designated accessible entry point. It does not include indoor placement, assembly, or installation.