ThermaSol Fortis 4 Person Outdoor Sauna Cabin

Bring structure, warmth, and modern design into your outdoor space with the ThermaSol Fortis Outdoor Sauna Cabin. Built with clean architectural lines and premium thermal materials, this fully assembled sauna creates a refined setting for daily relaxation, recovery, and reset.

Its expansive glass front and dark, textured exterior give it a strong architectural presence, while the insulated interior and natural wood finishes create a calm, grounded environment. Designed for year round performance, the Fortis transforms your backyard into a dedicated wellness space that feels both elevated and intentional.

The Experience

Step inside and feel the shift. The space is quiet, warm, and evenly heated, allowing the body to relax while the mind slows down. Natural materials and soft lighting work together to create an atmosphere that feels steady and restorative.

Designed to comfortably accommodate three to four people, the interior supports both personal use and shared sessions. Each experience feels consistent, comfortable, and easy to return to.

Key Features

Fully Assembled Outdoor Design
Delivered pre built and ready for placement, creating a streamlined path from delivery to use.

8kW Harvia Virta Heating System
High performance heater delivers fast, even heat with the ability to introduce gentle steam. WiFi connectivity allows for simple control and preheating.

Architectural Glass Front Facade
34mm Parsol dark grey glass framed in black aluminum brings in natural light while reducing solar exposure and maintaining a clean, modern aesthetic.

Thermally Modified Tyrol Wood Construction
Exterior and interior wall paneling designed for durability, stability, and long term outdoor performance.

Thermo Aspen Interior Seating
Smooth, heat resistant benches provide a comfortable and supportive environment for longer sessions.

Integrated RGB Ambient Lighting
Customizable LED lighting system allows you to adjust the atmosphere for a calm, personalized experience.

All Season Performance Build
Multi layer insulation paired with a Firestone EPDM roof supports consistent performance across changing weather conditions.

Specifications

Capacity: 3 to 4 persons
Exterior Dimensions: 90" L × 82" W × 91" H
Bench Depth: 24"
Heater: 8kW Harvia Virta (240V) with WiFi
Materials: Thermo Tyrol exterior and interior walls, thermo aspen benches
Front: 34mm Parsol dark grey glass with aluminum framing

Ideal For

• Creating a modern outdoor wellness retreat
• Daily relaxation and stress reduction
• Supporting circulation and muscle recovery
• Enhancing patios, gardens, and architectural spaces
• Building a consistent at home sauna routine

Shipping and Delivery

Free shipping within the United States
Delivered fully assembled via flatbed trailer
Customers are notified in advance to prepare the site
Crane required for placement and coordinated by the customer
Estimated delivery time is approximately 12 to 13 weeks