ThermaSol Lumaria Sauna Cabin - Indoor Sauna Kit, Front/Side Glass, Up to 5 Persons
Light-filled and design forward, the Lumaria Sauna Cabin offers a modern corner friendly layout for interior wellness spaces.
The solarium design is highlighted by the floor-to-ceiling panoramic glass facade that extends the length of the two outer walls. The frameless, flush-mount glass door allows access to the spacious interior with brushed Tyrol wood cladding offering tactile comfort and natural elegance.
Thermo-aspen benches and backrests create a unique aesthetic contrast to the walls and ceiling while delivering superior comfort during sauna sessions. Multi-layer wood fiber insulation ensures superior heat retention and efficiency while the Harvia Virta swiftly generates plentiful heat and steam. Full-spectrum LED color therapy lighting illuminates from recessed locations throughout the interior, with the included control creating a fully customizable ambiance.
Supported by a 1-year warranty, the ThermaSol Lumaria indoor sauna combines natural materials with lasting performance and energy efficiency for a sauna solarium exemplary for indoor wellness spaces.
Features & materials
- Brushed Tyrol wood cladding interior with transparent panoramic glass to effortlessly blend in with several interior styles
- Thermo-Aspen benches and backrests for superior comfort and stability while resisting moisture and warping
- Multi-layer wall insulation using sustainable wood fibers to improve heat retention and energy efficiency
- Harvia Virta electric sauna heater for powerful, evenly distributed heating performance
- Harvia Xenio sauna control touchpad to adjust time and temperature with repeat scheduling and WiFi connectivity through the MyHarvia App
- Full-spectrum recessed LED lighting with independent controls for a personalized ambiance
- Ideal for home wellness spaces, fitness rooms, spas, or boutique wellness centers
- Arrives flat-packed with installation instructions for straightforward assembly
- Medium dimensions: 86.6"W (220 cm) x 66.9"D (169.9) x 83"H (210.8 cm)
- Large dimensions: 86.6"W (220 cm) x 86.6"D (220 cm) x 83"H (210.8 cm)
- Designed and crafted in the U.S.A.
- 1-year warranty
Manuals & documents
Shipping & delivery
Shipping cost: Shipping is charged by the total weight of your order. This item on its own ships for $1,990 within the contiguous US, and the exact amount for your whole order is shown at checkout before you pay.
Most in-stock orders ship within 3–5 business days of confirmed payment, and delivery is typically 5–15 business days after shipment. Made-to-order saunas and custom-configured rooms need production time on top of that, which we confirm before the order is released. We ship within the contiguous United States.
Large items ship LTL freight on a pallet, delivered curbside — to the curb or the end of your driveway, often from a trailer up to 53 feet long. Curbside does not include unpacking, assembly, installation or electrical connection. The carrier calls to book an appointment and someone must be there to receive the shipment. Tell us at the time of order if access is limited — narrow or rural roads, steep driveways, gated communities — and ask for liftgate service if you have no dock or forklift.
Inspect the shipment before the driver leaves and before you sign. Count the cartons and pallets against the paperwork, check glass doors and panels, write any damage or shortage on the Delivery Receipt, and photograph it. Email info@plungeintosaunas.com within 48 hours of delivery with your order number, photos and the noted receipt — the same window covers concealed damage and missing items. Keep the packaging while a claim is open.
Cancellations & returns
Cancel before the order has been submitted for fulfillment and it is refunded in full — email info@plungeintosaunas.com with your order number. After that point manufacturer, carrier, return-freight or restocking fees may apply. Every return must be approved by us in writing first: products ship from different manufacturer warehouses, so the correct return address varies, and anything sent back without authorization may be refused.
Return requests are made within 30 days under our general policy; some brands run that window from the date of purchase rather than delivery. Items must be unused, uninstalled, never heated or filled, complete in their original packaging and in resalable condition. Restocking fees run up to 25% depending on the manufacturer, while Harvia, HUUM, SaunaLife, Saunum, Narvi, ThermaSol, Delta, Kohler and Mr. Steam charge no restocking fee at all, only a re-boxing fee of roughly $20–$50 if the original packaging does not come back intact. On a change-of-mind return you pay return shipping and the original outbound shipping is not refunded.
If the item arrived damaged or a manufacturer error is at fault, return shipping is covered for you. Custom, made-to-order and special-order items already in production, clearance and open-box items, heaters that have been wired or fired, tubs and generators that have been filled, assembled or heated rooms, opened consumables and all Canadian Timber Collection products cannot be returned. Ask us before you buy if you are unsure.
Complete your setup
Total for 1 item $21,276.00
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ThermaSol Lumaria Sauna Cabin -
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- Shipping: $1,990For this item on its own · contiguous US
- Authorized dealerFull manufacturer warranty
- Sized by a specialistRoom, heater and install checked
- Talk to a human(888) 739-3321
Model specifications
The figures that decide the buy. The complete sheet ships with the manual.
- Model
- LUMARIA SAUNA CABIN
- Glass Material
- Transparent Tempered with Black Enamel Frame
- Interior Material
- Tyrol Wood Cladding
- Bench and Backrest Material
- Thermo-Aspen Wood
- Handle Material
- Matte-Black Exterior, Aspen Interior
- Lighting
- 110V Full-Spectrum LED
- Capacity (Medium)
- 2-3 People
- Capacity (Large)
- 4-5 People
- Width (Medium)
- 86.6" (220 cm)
- Depth (Medium)
- 66.9" (169.9)
- Height (Medium)
- 83" (210.8 cm)
- Width (Large)
- 86.6" (220 cm)
Manufacturer figures. The complete specification sheet, clearances and wiring details are in the manufacturer's installation manual. See the Manuals tab above.
Everything in the box
Exactly what ships with this model, straight from the manufacturer's packing list.
- Flat-Packed Indoor Sauna
- Harvia Virta 9kW Sauna Heater with Wi-Fi
- Harvia Xenio CX45 Digital Control with Wi-Fi
- Harvia AC3020 Sauna Stones (3)
- Temperature Sensor
- Headrest (2)
- Wood Platform
- MyHarvia App
- Installation Instructions
- 1-Year Warranty
Sauna stones, water treatment and accessories are sold separately unless listed above.
Setting up
What happens between checkout and your first session.
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Your sauna arrives crated on a pallet by LTL freight, delivered to the curb. The carrier calls ahead to book a window, and the driver's job ends at ground level — they lower the pallet and leave it at the end of your driveway. Line up two people and a clear path to move the pieces from there; a full kit can run well over 1,000 lb.

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What you need at the panel depends on the heater you pair with the room, and on extras like lighting. Electric heaters take a dedicated 240 V circuit sized to their output, with the breaker and wire gauge set by that heater's manual. Final hookup is a licensed electrician's job. Wood-burning stoves need no power at all — just a chimney kit and the clearances the manual specifies.

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A level, load-bearing base is the part worth getting right. A concrete pad, patio stones over compacted gravel, or a deck rated for the loaded weight all work, as does an interior floor that carries the load. Leave the heater clearances from the manual and room for the door to swing, and check local permit rules before you build.

Not sure your site is ready? Call (888) 739-3321 before you order and we'll walk through it with you.
Talk it through with a sauna specialist
Room size, heater match, electrical, delivery access — a ten-minute call answers most of it. No pressure, no sales script.
Daily, 8 AM to 7 PM Pacific. Or email info@plungeintosaunas.com any time.
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Sizing & fit
We'll check the footprint, ceiling height and heater match for your space. -
Electrical & site
What your electrician needs to know before you order. -
Delivery
Lead time, freight access and what to expect on delivery day.
What happens next
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We check the order
A sauna specialist reviews the configuration, the delivery address and freight access, and usually calls you to confirm it before the order is released to the manufacturer. Anything that needs changing gets changed before it ships.
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Confirmation and lead time
You get an email with the confirmed lead time, the manuals for your unit and what to prepare on site. Tracking follows within 24 hours of it leaving the warehouse.
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Delivery day and after
The freight carrier calls to book a curbside appointment — count the cartons and note any damage on the delivery receipt before you sign. Assembly, electrician and warranty questions after that come to us, and we handle them with the manufacturer on your behalf.
Frequently Asked Questions
Yes! Shop Pay Installments may be available at checkout, allowing you to split your order into installment payments, with interest-free options on eligible orders and monthly plans from 0–36% APR. Just select Shop Pay at checkout to see your options.
Warranty coverage varies by manufacturer and product. Please refer to the product page or included documentation for specific details. Warranties are provided by the manufacturer. We're happy to help connect you with the manufacturer if you have a warranty question.
We ship within the contiguous United States only. We do not currently ship to Alaska, Hawaii, PO boxes, APO/FPO addresses, or international destinations.
No. Standard curbside delivery means the carrier delivers to the curb or end of your driveway only. The driver is not required to bring items into your home, garage, or backyard, and delivery does not include unpacking, assembly, or installation.
Yes. Our store is secured with SSL encryption and all payments are processed through Shopify's secure checkout. We never store your full credit card information.
Exchanges are handled on a case-by-case basis. Contact us at info@plungeintosaunas.com with your order number and the item you'd like instead. If approved, you may be responsible for price differences, return shipping, and any applicable restocking fees.





