ThermaSol Astra Indoor Sauna Cabin for 4 Persons – Glass Corner Sauna Kit with Wi-Fi Harvia Heater

Product Description

The ThermaSol Astra Sauna Cabin is a premium indoor wellness sanctuary designed to transform any interior space into a refined spa environment. Combining sleek architectural glass with warm natural wood finishes, this sophisticated 4-person sauna delivers a serene, open atmosphere that enhances both relaxation and interior aesthetics.

Its semi-panoramic glass design creates a spacious, light-filled feel while maintaining excellent thermal performance. Brushed Tyrol wood exterior panels provide a contemporary architectural finish, while thermo-aspen benches and backrests offer exceptional comfort, durability, and elegant natural texture.

Engineered for efficiency and consistent performance, the Astra features advanced multi-layer wood fiber insulation that stabilizes heat while minimizing energy loss. The powerful Harvia Virta 9kW heater with Wi-Fi delivers professional-grade sauna performance, while the Harvia Xenio digital control system enables remote operation for effortless session customization.

Integrated RGB LED lighting enhances ambiance and relaxation, allowing you to tailor the atmosphere for recovery, stress relief, meditation, or quiet evening unwinding. Whether installed in a home spa, wellness room, or luxury interior retreat, the Astra Sauna Cabin provides a sophisticated sauna experience built for reliable year-round use.

What’s Included

• Astra Sauna Cabin (Flat-Packed Indoor Kit)

• Harvia Virta 9kW Sauna Heater with Wi-Fi

• Harvia Xenio CX45 Digital Control with Wi-Fi

• Harvia AC3020 Sauna Stones (3 Boxes)

• Installation Instructions

• 1-Year Manufacturer Warranty

Key Features

• Indoor sauna designed for residential installation

• Comfortable capacity for up to four bathers

• Semi-panoramic glass panels for open feel

• Thermo-aspen benches and backrests

• Brushed Tyrol wood exterior panels

• Multi-layer wood fiber insulation for efficiency

• Wi-Fi enabled heater and digital control system

• Integrated RGB LED lighting for mood customization

• Modern architectural corner design

• Energy-efficient heating performance

Specifications

Model: Astra Sauna Cabin
SKU: 14-ASTRADR
Installation Type: Indoor
Capacity: Up to 4 Persons

Heater: Harvia Virta 9kW with Wi-Fi
Control: Harvia Xenio CX45 Wi-Fi Digital Control
Sauna Stones: Harvia AC3020 (3 Boxes Included)

Interior Wood: Thermo-Aspen
Exterior Panels: Brushed Tyrol Wood
Glass Design: Semi-Panoramic Transparent Glass
Lighting: Integrated RGB LED System
Construction: Flat-Packed Kit

Dimensions

• Width: 85.4" (216.9 cm)

• Depth: 85.4" (216.9 cm)

• Height: 83" (210.8 cm)

• Bench Depth: 24" (61 cm)

Weight: 1323 lbs (600.1 kg)
Shipping Weight: 1543 lbs (699.9 kg)

Shipping & Delivery Information

• Shipping cost varies based on delivery location

• Delivered via freight carrier on a flatbed truck

• Sauna arrives flat-packed with pre-assembled panels

• Customers are contacted approximately 2 weeks before delivery to schedule arrival

• A forklift is recommended for unloading

• Manual unloading is possible with 3–4 people (30–60 minutes)

• Buyer must be prepared to receive shipment per instructions

Installation Notes

• Assembly typically requires 2 people, basic tools, and a few hours

• Heater installation must be performed by a licensed electrician

• Indoor saunas can sit directly on existing flooring if level and water-resistant

• Suitable flooring: concrete, tile, vinyl, laminate

• Units are freestanding and can be disassembled and relocated

Special Features

• Remote Wi-Fi heater control capability

• Premium architectural spa design

• High-efficiency insulation system

• Contemporary glass corner layout

• Professional-grade Harvia heating system

• Built for luxury home wellness environments

• Stable heat retention engineering

Warranty

Manufacturer Limited Warranty: 1 Year