Scandinavian-Inspired Design Meets Traditional Sauna Heat

The ThermaSol Aalto combines sculptural contemporary design with traditional electric sauna performance in a spacious indoor cabin for 3–4 people.

Its semi-panoramic transparent glass front and corner-friendly layout create an open, airy appearance, while Brushed Tyrol wood walls and Thermo-Aspen benches and backrests add natural warmth and texture. Integrated RGB LED lighting beneath the benches and behind the backrests lets you customize the atmosphere from vibrant to subdued.

A 9kW Virta heater with Wi-Fi provides the primary heat source, giving the Aalto a traditional stone-heated sauna configuration. The cabin is available in left- or right-assembly configurations, so the glass corner and heater position can be selected to suit the room layout.

The Aalto measures approximately 87" L × 87" W × 83" H, with an assembled weight of approximately 1,543 lbs and shipping weight of approximately 1,764 lbs. It is a substantial premium sauna designed for dedicated residential wellness environments.

Why You'll Love It

3–4 Person Capacity

The Aalto is designed to accommodate 3–4 people, making it suitable for shared sessions or for customers who want a more spacious experience when using the cabin alone.

Semi-Panoramic Glass Design

The transparent semi-panoramic glass front creates a visually open cabin and allows the Aalto to integrate naturally into contemporary interior spaces.

Brushed Tyrol Wood Walls

The sauna features Brushed Tyrol wood wall panels, bringing natural texture and a refined wood finish to the interior.

Thermo-Aspen Benches & Backrests

The seating system uses Thermo-Aspen benches and backrests, complementing the Tyrol wood walls and providing purpose-built sauna seating.

9kW Virta Heater with Wi-Fi

The Aalto includes a 9kW Virta electric sauna heater with Wi-Fi, providing traditional sauna heat with connected control capability.

Traditional Stone-Heated Sauna

The Virta heater is designed for the traditional sauna experience, including the option to add water to heated stones according to the heater manufacturer's instructions.

RGB LED Color Lighting

Integrated RGB LED lighting is positioned beneath the benches and behind the backrests, with remote control for adjusting the visual ambiance.

Multi-Layer Wall Construction

ThermaSol uses multi-layer wall construction with sustainable wood-fiber insulation as part of the Aalto's cabin design.

Left or Right Assembly

The Aalto is offered with left or right assembly, allowing the glass corner and heater position to be matched to the room configuration.

Approximately 24" Bench Depth

The published Aalto specifications identify an approximate 24" bench depth, providing a substantial seating surface for the multi-person cabin.

Freestanding Indoor Design

The Aalto is a freestanding indoor sauna, designed to sit directly on a suitable finished floor rather than requiring a permanent built-in enclosure.

Pre-Assembled Panels

ThermaSol states that indoor Aalto units are delivered with pre-assembled panels and detailed installation instructions, helping simplify on-site assembly.

Designed for Elevated Home Wellness Spaces

The Aalto is designed for customers who want a traditional sauna to function as a statement piece within a modern interior.

Its combination of semi-panoramic glass, natural wood finishes, multi-level seating, RGB lighting, and Wi-Fi-enabled heating makes it well suited to dedicated wellness rooms, home gyms, primary suites, fitness areas, and other premium indoor environments.

With an approximately 87" × 87" × 83" footprint, the Aalto requires a substantial installation area. Customers should also account for its approximately 1,543-lb assembled weight and 1,764-lb shipping weight when planning delivery and placement.

Product Specifications

Product Information

• Brand: ThermaSol
• Model: Aalto
• Product Type: Indoor traditional electric sauna cabin
• Capacity: 3–4 people
• Configuration: Left or right assembly
• Wall Material: Brushed Tyrol wood
• Bench & Backrest Material: Thermo-Aspen
• Glass: Transparent semi-panoramic glass
• Lighting: RGB LED color lighting
• Installation: Indoor / freestanding
• SKU: 14-AALTODL / 14-AALTODR depending on assembly orientation

Dimensions & Weight

• Length: 87"
• Width: 87"
• Height: 83"
• Assembled Weight: Approximately 1,543 lbs
• Shipping Weight: Approximately 1,764 lbs
• Approximate Bench Depth: 24"

Heating System

• Heater: Virta
• Power: 9kW
• Heating Type: Traditional electric sauna
• Wi-Fi: Yes
• Heater Position: Varies by left/right assembly
• Sauna Stones: Required for traditional stone-heated operation; confirm package inclusion separately

Controls & Lighting

• Wi-Fi-enabled heater control
• RGB LED color lighting
• Remote-controlled lighting
• Under-bench lighting
• Backrest lighting

Construction

• Brushed Tyrol wood wall panels
• Thermo-Aspen benches
• Thermo-Aspen backrests
• Transparent semi-panoramic glass
• Multi-layer wall construction
• Sustainable wood-fiber insulation
• Freestanding corner-oriented layout

What's Included

The current ThermaSol product page confirms the primary Aalto cabin and its integrated systems, including:

• ThermaSol Aalto sauna cabin
• Brushed Tyrol wood wall panels
• Thermo-Aspen benches and backrests
• Transparent semi-panoramic glass
• RGB LED color lighting
• 9kW Virta heater with Wi-Fi
• Pre-assembled cabin panels
• Installation instructions

Sauna Control Note

ThermaSol's current Aalto listing confirms the included 9kW Virta with Wi-Fi. The manufacturer also states on the Virta component listing that the Xenio Control Kit is required for operation and is sold separately when the heater is purchased individually. For the complete Wellness Edge Frontier SKU, confirm the exact control package before listing the Xenio kit as a separate or included item.

Sauna Stone Note

The Virta heater is designed for traditional sauna-stone operation. The current Aalto page does not clearly establish that sauna stones are included with the complete WEF package, so stones should not be listed as included without confirmation.

Optional Add-Ons

Sauna Stones

Sauna stones are required for traditional stone-heated operation. Verify whether the exact WEF package includes stones or requires them to be purchased separately.

Assembly Orientation

The Aalto can be ordered in left- or right-assembly configurations, depending on how the customer wants the glass corner and heater positioned. This is a product configuration rather than an aftermarket accessory.

Shipping & Installation

ThermaSol states that the Aalto is delivered with pre-assembled panels and detailed installation instructions. The manufacturer says indoor sauna delivery is made by flatbed trailer, with customers notified approximately two weeks before scheduled delivery to allow site preparation.

The manufacturer recommends a forklift for unloading, although it states that the sauna can also be manually offloaded piece by piece with 3–4 people in approximately 30–60 minutes.

The Aalto measures approximately 87" L × 87" W × 83" H, with an assembled weight of approximately 1,543 lbs and shipping weight of approximately 1,764 lbs. Customers should therefore plan the complete delivery route, doorways, hallways, stairs, and installation area in advance.

ThermaSol specifies that indoor saunas should sit on a level, water-resistant floor, with suitable surfaces including concrete, ceramic tile, vinyl, or laminate.

The 9kW Virta heater requires professional electrical installation, and ThermaSol states that a licensed electrician must install the heater.

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Frequently Asked Questions

What is the ThermaSol Aalto?

The Aalto is a 3–4 person indoor traditional electric sauna cabin featuring semi-panoramic transparent glass, Brushed Tyrol wood walls, Thermo-Aspen benches, RGB lighting, and a 9kW Virta heater with Wi-Fi.

How many people can use it?

The Aalto is designed for 3–4 people.

Is the Aalto an infrared sauna?

No. It is a traditional electric sauna using a stone-heated Virta system rather than infrared heating panels.

What heater does it use?

The Aalto includes a 9kW Virta heater with Wi-Fi.

What are the electrical requirements?

The heater is a 9kW system operating at 240V. A licensed electrician should complete installation according to applicable electrical requirements.

Does the Aalto support steam or humidity?

Yes. The traditional Virta sauna heater is designed for the Finnish practice of adding water to hot sauna stones to introduce humidity, following the heater's operating instructions.

Does it have Wi-Fi?

Yes. The Virta heater included with the Aalto is specified with Wi-Fi.

Does it include RGB lighting?

Yes. The Aalto includes integrated RGB LED lighting beneath the benches and behind the backrests.

What type of wood is used?

The walls use Brushed Tyrol wood, while the benches and backrests use Thermo-Aspen.

Does it have panoramic glass?

Yes. The Aalto features a transparent semi-panoramic glass design.

What are the dimensions?

The Aalto measures approximately 87" L × 87" W × 83" H.

How much does it weigh?

The current manufacturer listing gives an approximate 1,543-lb assembled weight and 1,764-lb shipping weight.

Can I choose left or right assembly?

Yes. ThermaSol offers left- and right-assembly versions, allowing the glass corner and heater position to suit the room.

Is the Aalto freestanding?

Yes. ThermaSol states that its indoor sauna units are freestanding and can be disassembled and relocated if necessary.

What kind of floor does it require?

ThermaSol specifies a level, water-resistant floor, such as concrete, ceramic tile, vinyl, or laminate.

How is it delivered?

Indoor Aalto units are delivered by flatbed trailer, with approximately two weeks' advance notice for preparation.

What is recommended for unloading?

ThermaSol recommends using a forklift, although it says the sauna can also be unloaded manually piece by piece with 3–4 people in about 30–60 minutes.

Is the cabin delivered fully assembled?

The current manufacturer page states that the Aalto is delivered with pre-assembled panels and detailed installation instructions.

Does it require professional electrical installation?

Yes. ThermaSol states that a licensed electrician must install the heater.

Are sauna stones included?

The current Aalto product page does not clearly establish that sauna stones are included with the complete cabin package. Confirm the exact WEF package before listing them as included.

Does it include the Xenio Control Kit?

The Aalto page confirms Wi-Fi-enabled Virta heating, but the standalone Virta listing states that a Xenio Control Kit is required for operation when the heater is purchased independently. Confirm the exact Aalto package before publishing the control kit as a separately supplied component.

What is the maximum temperature?

The current ThermaSol Aalto page does not provide a sufficiently clear maximum cabin-temperature specification, so I would not publish an unsupported temperature figure.

What is the warranty?

The current manufacturer page does not clearly state a complete warranty term for the Aalto. Confirm the warranty for the exact Wellness Edge Frontier SKU before publication.