Indoor Sauna Kit | ThermaSol Lumaria 2–5 Person Glass

The ThermaSol Lumaria is a freestanding indoor sauna kit with transparent panoramic glass along two outer walls and a frameless, flush-mount glass door. Choose Medium for 2–3 people or Large for 4–5 people.

Brushed Tyrol wood clads the interior walls and ceiling, with thermally modified aspen benches and backrests. Multi-layer walls contain natural wood fiber insulation. Remote-controlled RGB LED lighting is installed under the benches and behind the backrests.

Both sizes include a Harvia Virta 9kW heater, a Harvia Xenio CX45 digital control with Wi-Fi, and sauna stones. The cabin arrives as pre-assembled panels for on-site assembly, with left or right assembly options to match your room layout.

Size & Assembly Options

Medium: Seats 2–3 people. Dimensions: 86.6" L × 66.9" W × 83" H (220 × 169.9 × 210.8 cm). Assembled weight: 1,323 lbs (600.1 kg). Shipping weight: 1,543 lbs (699.9 kg).

Large: Seats 4–5 people. Dimensions: 86.6" L × 86.6" W × 83" H (220 × 220 × 210.8 cm). Assembled weight: 1,543 lbs (699.9 kg). Shipping weight: 1,764 lbs (800.1 kg).

Left-side assembly: Glass corner and heater on the right side. Right-side assembly: Glass corner and heater on the left side. Confirm your assembly choice when ordering because it affects room layout and electrical planning.

Weights and dimensions are approximate.

Specifications

Brand and model: ThermaSol Lumaria Indoor Sauna Cabin.

Sauna type: Freestanding indoor traditional sauna; pre-assembled panels requiring on-site assembly.

Glazing: Transparent panoramic glass across two outer walls, with a frameless, flush-mount glass door.

Interior: Brushed Tyrol wood walls and ceiling; thermally modified aspen benches and backrests.

Insulation: Multi-layer wall construction with natural wood fiber insulation.

Lighting: RGB LED color lighting under the benches and behind the backrests, with remote control.

Heating and control: Harvia Virta 9kW electric heater with Wi-Fi control through the included Harvia Xenio CX45.

What's Included

ThermaSol Lumaria cabin in the selected size and assembly orientation, supplied as pre-assembled panels; Harvia Virta 9kW sauna heater; Harvia Xenio CX45 digital control with Wi-Fi; three boxes of Harvia AC3020 sauna stones; RGB LED lighting with remote control; installation instructions; and manufacturer warranty documentation.

Delivery & Installation

The Lumaria is delivered by flatbed trailer as pre-assembled panels. Customers are notified two weeks before scheduled delivery to allow time for preparation. Commercial deliveries require a customer-provided forklift or loading dock for unloading. Residential deliveries include freight-company offloading with threshold delivery at no additional cost; no forklift or loading dock is required.

Prepare to receive and unload the sauna according to the product manual. Moving panels to the final installation room, assembly, and electrical work are not included in delivery.

Flooring: Install on a level, water-resistant surface. Listed suitable materials include concrete, ceramic tile, vinyl, or laminate. If the existing floor does not meet these requirements, an alternative foundation may be needed.

Assembly: The freestanding cabin can be disassembled and relocated if necessary. The listed assembly estimate is two people using basic tools for a few hours; actual time depends on site conditions and experience. Follow the installation instructions for your selected size.

Electrical installation: A licensed electrician must install the heater and control according to the manufacturer's instructions and applicable electrical codes. Confirm room layout, access, and electrical planning before ordering.

Manuals & Documentation

ThermaSol Lumaria Medium Installation Manual (PDF)

ThermaSol Lumaria Large Installation Manual (PDF)

ThermaSol Lumaria Medium Spec Sheet (PDF)

ThermaSol Lumaria Large Spec Sheet (PDF)

Warranty

The ThermaSol Lumaria sauna cabin is covered by ThermaSol's 1-year sauna room warranty from substantial project completion, covering manufacturing defects in workmanship and materials. The included Harvia heater and Xenio control carry a 5-year limited warranty when installed in a private residential setting (stones and heating elements: 1 year). Warranty coverage is subject to installation by a licensed electrician and registration requirements set by the manufacturer.

Returns

Prime Regeneration supports a 30-day return framework on eligible items. Because this sauna is built to order and delivered by freight, returns are subject to ThermaSol's manufacturer return conditions for made-to-order sauna cabins. Please contact Prime Regeneration at (513) 650-6959 (Monday–Saturday, 9am–5pm) before initiating any return so we can confirm eligibility and next steps.

Important Wellness Information

Sauna bathing is intended for relaxation and general wellness. Consult your physician before using a sauna if you are pregnant, have a medical condition, or take medication. Stay hydrated, keep sessions to a comfortable length, avoid alcohol before or during use, and exit the sauna if you feel dizzy or unwell. Children should always be supervised.

Frequently Asked Questions

How do Medium and Large differ?
Medium seats 2–3 people and measures 86.6" L × 66.9" W. Large seats 4–5 people and measures 86.6" L × 86.6" W. Both are 83" high and include the same listed heating package.

Is the heater included?
Yes. Both sizes include a Harvia Virta 9kW heater, Harvia Xenio CX45 digital control with Wi-Fi, and three boxes of Harvia AC3020 sauna stones.

What does left or right assembly mean?
Left-side assembly places the glass corner and heater on the right; right-side assembly places them on the left. Confirm the required orientation before ordering.

Does the sauna arrive fully assembled?
No. It arrives as pre-assembled panels requiring on-site assembly. Use a level, water-resistant floor and have a licensed electrician install the heater and control.

What should I prepare for delivery?
Commercial deliveries need a customer-provided forklift or loading dock. Residential deliveries include freight-company offloading and threshold delivery at no additional cost. Moving panels into the installation room, assembly, and electrical work are not included. Follow the manual and delivery instructions.