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Celsium Jonas Grand Outdoor Sauna – comfortable and spacious

by Celsium
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Relaxation in a spacious setting


Space, light, and soothing warmth come together in the Celsium Jonas Grand Outdoor Sauna to create a place that does not limit relaxation, but rather expands it. This Outdoor Sauna is designed for people who view wellness as a shared experience and who value space, quality, and architectural clarity. A retreat that fosters presence—in the garden, in everyday life, in the moment.

Außenansicht der Celsium Jonas Grand Gartensauna mit Glasfront zwischen Bäumen.

The Celsium Jonas Grand Outdoor Sauna: A Spacious Wellness Room


The Celsium Jonas Grand Outdoor Sauna comfortably accommodates up to six Persons and is designed for anyone seeking a spacious sauna experience. The extended floor plan allows for relaxed sitting and reclining, while the optimized bench arrangement promotes a harmonious atmosphere. Thanks to the flexible door position on the left or right, the sauna can be precisely adapted to the specific layout of your garden.

Zweistufige Saunabänke aus hellem Holz mit integrierter LED-Beleuchtung im Innenraum.

The Celsium Jonas Grand Outdoor Sauna with Architectural Clarity


Clean lines, balanced proportions, and a large glass front define the appearance of the Celsium Jonas Grand Outdoor Sauna. High-quality natural wood forms the basis of the construction and is complemented by a weather-resistant exterior finish. The available color options blend seamlessly into both modern and natural settings. Since every element is crafted from real wood, each sauna is a one-of-a-kind piece.

The well-thought-out design of the Celsium Jonas Grand Outdoor Sauna


The Celsium Jonas Grand Outdoor Sauna is designed for classic sauna sessions as well as for optional hybrid use with infrared technology. Its solid construction ensures stability and durability. The sauna walls, ceiling, and floor are insulated with 5 cm thick PIR insulation panels, which enable efficient heat retention and consistent temperatures. The structure is designed for high-performance heating systems and is built for year-round use.

Relaxing sauna sessions with the Celsium Jonas Grand Outdoor Sauna


The spacious interior allows for various sitting and reclining positions and offers ample room for several Persons to move around. A variety of wood types for walls, benches, and backrests enable a personalized interior design. Additional features such as lighting or audio systems enhance the sauna experience without disrupting its tranquil atmosphere.

Celsium Jonas Grand Gartensauna im Garten mit umlaufender Holzverkleidung.

Unwind together in the Celsium Jonas Grand Outdoor Sauna


The intense, even heat promotes relaxation, regeneration, and mental calm. The open, spacious feel created by the glass front enhances the sense of expansiveness and connection to the surroundings. The Celsium Jonas Grand Outdoor Sauna is ideal for regular sauna rituals with family or friends and supports a mindful, unhurried lifestyle.

Special features

Click or tap on the icons to learn more.
Außenansicht einer modernen Infrarotkabine Celsium mit grauer Frontplatte und Holzseite, im Garten positioniert
Own production – no assembled goods
Every sauna is manufactured entirely in-house. You get genuine manufacturing quality with full control over materials, workmanship, and details.
Wandmodul der Celsium Jonas Classic Gartensauna mit OSB-Verkleidung
Premium quality with responsibility
From the initial design to the final implementation, everything is handled by a single source—ensuring consistently high quality, durable construction, and clean workmanship.
Made in EU
High-quality manufacturing in the European Union – for tested quality, fair production standards, and short delivery routes.
Fichte Sauna Jonas Large – Außenansicht in dunkler Fassadenverkleidung, Detailansicht der hellen Fichtenholzoberfläche.

Scope of delivery

Everything at a glance – this is what's included!
  • Celsium Jonas Grand sauna cabin (flat pack or pre-assembled)
  • Sauna benches and backrests according to configuration
  • Large glass front and all-glass door
  • Assembly materials
  • Detailed assembly instructions

Specifications

Specifications Value
Capacity 4-6 people
Covered area 5.85m2
Steam room volume 13.1m3
External dimensions (W × D × H) 2,400 mm x 2,720 mm x 2,420 mm
Interior dimensions (W × D × H) 2,300 mm x 2,520 mm x 2,220 mm
Weight 750 kg
Pallet size (flat pack) 1.20m × 2.80m × 1.25m
Construction materials Premium Nordic Timber (The thickness of the boards used for the walls is 44 mm.)
Type Full-Height Tempered Glass 8mm
Exterior finish Horizontal Slatted Timber
Optional full glass front, or partial glass back wall.
Recommended heating capacity 9-11 kW. Three-phase power supply required.
Foundation required Solid, level base (min 2.5m × 2.0m)
Origin Handcrafted in Lithuania

Create a space for true relaxation now


Choose a Outdoor Sauna that combines spaciousness, quality, and tranquility—and create a permanent space for shared well-being.

Questions & Answers (FAQs)

No matching questions found.

FinA Wellness Store

What should I look out for before ordering?

Please check all relevant information about the product (dimensions, technical requirements, power/water connections, space requirements, delivery conditions) before ordering. If you have any questions, we recommend a consultation before purchasing, especially for larger wellness products.

Which payment methods are accepted?

We accept the following payment methods:

  • PayPal
  • Store Pay
  • Visa
  • Mastercard
  • American Express
  • Maestro
  • UnionPay
  • Apple Pay
  • Google Pay
  • USDC
  • Bancontact
  • EPS
  • iDEAL
  • Klarna
When is the load applied?

The amount is debited at the time the order is completed or according to the selected payment method. For payment services such as Klarna, the respective payment terms of the provider also apply.

Can I change or cancel my order at a later date?

Changes or cancelations are possible as long as the order is not yet in production, commissioning or shipping. Please contact us immediately after placing your order.

Are there any restrictions on the right of withdrawal?

Yes, custom-made products, special designs and individually configured goods are excluded from the statutory right of withdrawal. We will clarify transparently whether a product falls under this before or at the latest when the order is placed.

How long does the delivery take and will I be informed?

The delivery time is indicated directly with the respective product. These are valid as long as the item is in stock. Deviating, individually agreed delivery times have priority. We will actively inform you in the event of delays. You will receive ongoing information on the shipping status.

How does delivery by forwarding agent work?

Delivery is standard free curbside. This means that the goods are delivered to the nearest point that can be reached by truck.

Important:

  • Access for trucks must be possible
  • Sufficient clearance width and height required
  • The customer is responsible for transportation from the curb
  • If required, additional services (e.g. delivery to the installation site) can be arranged in advance
Can I set a preferred delivery date?

Delivery date requests will be considered if possible. The shipping company will usually contact you one to two days before delivery to arrange an appointment. Fixed dates or times cannot be guaranteed. Express deliveries with exact delivery dates are possible on request.

What applies in the event of damage, missing parts or subsequent defects?

Please check the goods immediately upon delivery. Transport damage or missing parts must be documented and reported immediately with photos/videos.

The statutory warranty of 2 years applies to defects. We examine every case and take care of repair, replacement or an appropriate solution.

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