A Bold Architectural Retreat with Panoramic Dark Glass

Bring contemporary design and traditional sauna bathing together with the ThermaSol Spectra Outdoor Sauna Cabin. Spectra is a fully assembled outdoor sauna designed for 3–4 people, combining thermally modified Tyrol wood, thermo-aspen benches, dark Parsol glass, integrated RGB lighting, and an insulated multi-layer construction for year-round outdoor use.

Its signature front uses 34mm Parsol Dark Grey Glass with black aluminum framing, creating a striking architectural appearance while bringing natural light into the cabin. Inside, brushed Tyrol wall panels and thermo-aspen benches provide a warm, textured contrast to the contemporary exterior.

Spectra includes an 8kW Harvia Virta heater with Wi-Fi, while integrated RGB LED lighting with remote control lets you customize the cabin's ambiance. The sauna arrives fully assembled and is designed for placement on a properly prepared outdoor foundation.

Why You'll Love It

• 3–4 Person Capacity — Spacious enough for shared sauna sessions while maintaining a refined, compact architectural footprint.
• Thermally Modified Tyrol Wood — Brushed Tyrol wood creates a distinctive natural texture inside and out.
• 34mm Parsol Dark Grey Glass — Large dark glazing gives Spectra its signature contemporary appearance.
• 8kW Harvia Virta Heater — Provides traditional sauna heat, with water added to the stones for the classic Finnish sauna experience.
• RGB LED Lighting — Integrated color lighting and remote control allow you to personalize the atmosphere.
• STEICO Wood-Fiber Insulation — Multi-layer insulation is incorporated into the cabin construction for outdoor, all-season use.
• Fully Assembled — The cabin is delivered assembled, reducing the need for conventional on-site sauna construction.

Designed for Modern Outdoor Wellness

Spectra is more than a traditional sauna cabin—it is designed as an architectural feature for the backyard. Its combination of dark glass, black aluminum framing, and thermally modified wood gives it a contemporary appearance that integrates naturally into sophisticated outdoor spaces.

The 3–4 person interior provides room for shared sessions, while the thermo-aspen benches and brushed Tyrol walls create a warmer, more traditional atmosphere once inside.

Thermally Modified Tyrol Wood

The exterior and interior wall construction uses thermally modified Tyrol panel wood. The brushed finish adds visual texture while maintaining the natural character of the material. Thermo-aspen is used for the interior benches.

Signature Parsol Dark Grey Glass

Spectra's defining architectural element is its 34mm Parsol Dark Grey Glass front. The glass is paired with black aluminum framing for a clean, contemporary appearance.

The dark glazing gives the cabin a more private visual character than conventional clear-glass sauna designs while still allowing the exterior environment to remain part of the overall experience.

8kW Harvia Virta Heater

The Spectra package includes an 8kW Harvia Virta heater with Wi-Fi. The Virta uses a freestanding design with heating elements separated from the stones, and the manufacturer describes it as suitable for the traditional Finnish practice of adding water to hot stones to introduce humidity.

Important: ThermaSol's current Spectra page states that the Xenio Control Kit is required for operation and sold separately. Some dealer listings identify a Xenio CX45 Wi-Fi controller as part of their Spectra package, so the exact SAKSBY configuration should be verified before advertising the controller as included.

RGB LED Color Lighting

Integrated RGB LED color lighting with remote control allows the interior atmosphere to be customized. This feature adds a contemporary touch while complementing the natural wood interior.

Insulated, Weather-Ready Construction

Spectra uses multi-layer STEICO wood-fiber insulation and a Firestone EPDM roof designed for year-round outdoor weather resistance.

This insulated construction is paired with the thermally modified wood exterior to create a substantial outdoor sauna cabin rather than a lightweight portable sauna.

Product Specifications

ThermaSol notes that dimensions and weights are approximate.

What's Included

The current official Spectra page confirms:

• Fully assembled Spectra sauna cabin
• Harvia Virta 8kW heater with Wi-Fi
• Thermally modified Tyrol wood construction
• Thermo-aspen benches
• 34mm Parsol Dark Grey Glass
• RGB LED color lighting with remote
• STEICO wood-fiber insulation
• Firestone EPDM roof

A current dealer listing additionally identifies a Harvia Xenio CX45 Wi-Fi control, three boxes of Harvia AC3020 sauna stones, installation instructions, and a 1-year warranty. Because these details are not all displayed on the current official Spectra page, they should be confirmed against the specific supplier package before being treated as guaranteed inclusions.

Traditional Sauna Experience

Spectra is a traditional sauna, not a separate steam shower. The Harvia Virta heater warms the sauna stones, and water can be added to the stones according to the heater manufacturer's instructions to create the familiar Finnish sauna humidity experience.

The original draft's references to guaranteed health, restorative, or therapeutic outcomes have been moderated. This listing positions Spectra around traditional sauna bathing, relaxation, comfort, and outdoor wellness.

Shipping & Delivery

ThermaSol states that its outdoor saunas are delivered fully assembled by flatbed trailer. Customers are notified approximately two weeks before scheduled delivery to allow time for site preparation.

Shipping costs are determined by location on the official ThermaSol product page.

Installation & Site Preparation

Spectra arrives fully assembled, so the primary installation requirements involve site preparation, delivery access, placement, and electrical connection.

ThermaSol requires a forklift or crane for unloading and placement. The delivery path must be accessible to the necessary equipment, and manual unloading is not recommended because of the cabin's size and weight.

The sauna should be placed on a firm, level surface with slight runoff for drainage, such as concrete, decking, pavers, or compacted gravel. A licensed electrician must install the heater.

Outdoor Installation Considerations

Before ordering, verify that the property can accommodate a fully assembled cabin measuring approximately 90" × 82" × 91" and weighing approximately 2,205 pounds.

Also confirm that the delivery route can accommodate a flatbed delivery and the forklift or crane required for placement.

Care & Maintenance

Keep the interior wood surfaces clean and allow the cabin to dry appropriately after use. Regularly inspect the benches, wood panels, glass, roof, heater, stones, lighting, and drainage area.

Follow ThermaSol and Harvia maintenance instructions for the specific heater and cabin components.

Warranty

The current official Spectra page does not prominently state a product warranty duration. A current dealer listing specifies a 1-year warranty, but this should be confirmed against the final supplier documentation before publishing it as a guaranteed warranty term.

Safety & Usage Information

The sauna should be installed and operated according to the supplied ThermaSol and Harvia instructions.

A licensed electrician must install the heater, and appropriate electrical requirements must be confirmed before installation.

Use water on the sauna stones only as directed by Harvia. The heater and stones can become extremely hot during operation, so appropriate caution is required.

The sauna should be marketed as a traditional wellness and relaxation product, rather than as a guaranteed treatment for medical conditions.

Wellness Applications

The ThermaSol Spectra is well suited to:

• Backyard sauna retreats
• Shared sauna sessions
• Couples and families
• Traditional Finnish-style sauna bathing
• Outdoor wellness spaces
• Post-exercise relaxation
• Contemporary landscape and patio projects
• Year-round outdoor sauna use

Why Choose Wellness Edge Frontier?

Wellness Edge Frontier brings together premium wellness products for customers creating sophisticated spaces for relaxation, self-care, and everyday well-being.

The ThermaSol Spectra Outdoor Sauna Cabin stands out with its distinctive dark Parsol glass façade, thermally modified Tyrol wood construction, thermo-aspen benches, RGB lighting, insulated walls, EPDM roof, and included 8kW Harvia Virta heater.

Frequently Asked Questions

How many people can the Spectra accommodate?
ThermaSol specifies a capacity of 3–4 people.

What are the dimensions?
The approximate dimensions are 90" L × 82" W × 91" H.

How much does the cabin weigh?
The assembled weight is approximately 2,205 pounds, with a shipping weight of approximately 2,425 pounds.

What type of wood is used?
Spectra uses thermally modified Tyrol panel wood for the exterior and interior walls, with thermally modified aspen for the benches.

What type of glass does Spectra use?
The cabin features 34mm Parsol Dark Grey Glass with black aluminum framing.

What heater is included?
The official product specification lists an 8kW Harvia Virta heater with Wi-Fi.

Does it produce steam?
It is a traditional sauna. Water can be added to the hot stones to introduce humidity; it does not use a separate steam generator.

Does it include RGB lighting?
Yes. RGB LED color lighting with a remote control is specified.

Does it arrive assembled?
Yes. ThermaSol states that its outdoor saunas are delivered fully assembled.

Is special unloading equipment required?
Yes. A forklift or crane is required for unloading and placement.

Is the Xenio control included?
This requires verification. The official Spectra page states that the Xenio Control Kit is required and sold separately, while current dealer Spectra packages list a Xenio CX45 Wi-Fi controller as included.