Indoor Sauna Kit | ThermaSol Aalto 3–4 Person Glass

The ThermaSol Aalto is a freestanding indoor sauna kit for 3–4 people, with a semi-panoramic transparent tempered-glass front and fluted Tyrol wood exterior cladding. Its corner layout is available with a left-side or right-side doorway.

Tyrol wood lines the interior, with thermo-aspen benches and backrests, multi-layer wood-fiber insulation, and independently controlled recessed full-spectrum LED lighting. The cabin includes two headrests and a wood floor platform.

A Harvia Virta 9kW electric heater, Harvia Xenio CX45 digital control with Wi-Fi, temperature sensor, and sauna stones are included. The control provides touchscreen time and temperature adjustment and MyHarvia app compatibility for supported remote-control and scheduling functions. The sauna arrives flat-packed with preassembled panels for on-site assembly.

Door Configuration Options

Left-side door: Doorway on the left, with the heater along the right wall.

Right-side door: Doorway on the right, with the heater along the left wall.

Review room layout, electrical location, and installation plans before selecting the configuration.

Specifications

Model and installation: ThermaSol Aalto Indoor Sauna Cabin; freestanding indoor traditional sauna. Designed and crafted in the United States.

Capacity: Approximately 3–4 people, depending on users' size and seating arrangement.

Exterior dimensions: 87" W × 87" D × 83" H (221 × 221 × 210.8 cm).

Bench depth: 24" (61 cm).

Product weight: 1,543 lbs (699.9 kg). Shipping weight: 1,764 lbs (800.1 kg).

Exterior: Transparent semi-panoramic tempered glass with fluted Tyrol wood cladding.

Interior and seating: Tyrol wood interior cladding; thermo-aspen benches and backrests.

Door handle: Matte-black exterior handle and aspen interior handle.

Insulation: Multi-layer wood-fiber insulation.

Heater and control: Harvia Virta 9kW electric heater and Harvia Xenio CX45 digital control with Wi-Fi; MyHarvia app compatibility.

Lighting: 110V full-spectrum recessed LED lighting with independent controls. This lighting rating does not establish the heater's electrical requirements; verify each component using its installation manual.

What's Included

ThermaSol Aalto flat-packed sauna cabin; preassembled wall and ceiling panels; Harvia Virta 9kW electric heater; Harvia Xenio CX45 digital control with Wi-Fi; three boxes of Harvia AC3020 sauna stones; temperature sensor; full-spectrum LED lighting system; two headrests; wood floor platform; installation instructions; and manufacturer's 1-year limited warranty.

Delivery & Receiving

The Aalto ships flat-packed by freight carrier. Customers are notified two weeks before scheduled delivery to allow time for preparation.

Residential deliveries: Freight-company offloading and threshold delivery are included at no additional cost; no forklift or loading dock is required. Threshold delivery is to the first dry, secure, accessible area at the delivery location. It does not include room-of-choice placement, assembly, installation, debris removal, or electrical work.

Commercial deliveries: A customer-provided forklift or loading dock is required for unloading. Prepare to receive and unload the sauna according to the manual.

An adult must inspect and accept the shipment. Before signing the delivery receipt, inspect packaging for visible damage and note any damage on the carrier's paperwork. Photograph the shipment and contact Prime Regeneration promptly if damage is discovered.

Shipping and delivery dates are estimates and may be affected by production schedules, carrier availability, weather, destination access, holidays, or other circumstances outside the retailer's control.

Installation Requirements

Indoor location: Install in a suitable temperature-controlled indoor space. Confirm room dimensions, ceiling clearance, doorway access, ventilation, and electrical placement before delivery. The Aalto is not designed for outdoor installation.

Flooring: Use a level, stable, water-resistant surface. Listed suitable materials include concrete, ceramic tile, vinyl, or appropriate water-resistant laminate. An alternative foundation or flooring solution may be required if the existing floor is uneven or unsuitable for moisture exposure.

Assembly: The listed estimate is two capable adults using basic tools for several hours. Actual time depends on site conditions and installer experience. The freestanding cabin can be disassembled and relocated; professional help may be appropriate because of its size and weight.

Electrical work: A licensed electrician must complete heater, control, sensor, and lighting electrical connections. Verify requirements using the current ThermaSol and Harvia manuals and applicable local electrical codes.

Customer responsibilities: Site preparation, assembly, electrical installation, and any locally required permits or inspections. Follow the current manuals; product specifications and installation requirements may be updated by the manufacturer.

Warranty

The ThermaSol Aalto Indoor Sauna Cabin is supported by a 1-year manufacturer's limited warranty. Warranty coverage is subject to the manufacturer's terms, exclusions, installation requirements, maintenance requirements, and approved-use conditions. Improper installation, unauthorized modifications, misuse, or failure to follow the manufacturer's instructions may affect warranty eligibility.

Keep your order confirmation, serial numbers, installation documentation, and electrician's records for future warranty service.

Manuals & Documentation

Review the installation manual and specification sheet before ordering and beginning site preparation.

ThermaSol Aalto Installation Manual (PDF)

ThermaSol Aalto Specification Sheet (PDF)

Frequently Asked Questions

How many people does the Aalto seat?
Approximately 3–4 people. Usable space varies with users' size and seating arrangement.

Is the heater included?
Yes. The kit includes a Harvia Virta 9kW heater, Xenio CX45 digital control with Wi-Fi, temperature sensor, and three boxes of Harvia AC3020 sauna stones.

Can I choose the door location?
Yes. Choose a left-side or right-side doorway. The heater sits on the wall opposite the selected doorway.

Does the cabin arrive fully assembled?
No. It arrives flat-packed with preassembled panels for on-site assembly. A licensed electrician must complete electrical connections.

Do I need a forklift for delivery?
Residential deliveries include freight-company offloading and threshold delivery without a forklift or loading dock. Commercial deliveries require a customer-provided forklift or loading dock. Room placement, assembly, debris removal, and electrical work are not included.