Celsium Joris Large barrel garden sauna - with covered terrace
incl. VAT
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Generous warmth. Timeless form. The Joris Large sauna from Celsium.
Enjoy a sauna experience that combines design, function and a sense of space in perfect harmony. The "Joris Large" from Celsium is more than just a sauna - it is a retreat, a place of tranquillity and conscious experience. With its spacious interior, a stylishly integrated, covered terrace and the precise processing of high-quality wood, it offers wellness at the highest level - for your home or your vacation oasis.
Character of the Joris Large designer sauna - space for real relaxation
The Joris Large is a further development of the popular Joris Small model - with identical internal dimensions, but with the addition of a covered terrace that serves as a relaxation area, transition zone or retreat between sauna sessions. It offers space for up to six Persons and invites you to take time out together. Whether after sport, on cold days or as a daily feel-good ritual - this sauna will become an integral part of your lifestyle.


Design & materials of the Joris Large solid wood sauna - naturalness meets elegance
Choose between three carefully selected types of wood: Nordic spruce wood for a light, pure ambience, the striking Shou Sugi Ban variant with a charred surface for a deep, textured finish or the heat-treated thermo pine wood, which impresses with its stability and warm color tones. Combined with glass details, harmonious proportions and The Joris Large glass sauna with its restrained color scheme (beige, grey, ebony, teak or hazelnut) creates a sauna that blends seamlessly into sophisticated architecture.
Technology & equipment of the Joris Large glass sauna - well thought-out down to the last detail
Every Joris Large comes with a powerful heater system, matching fireplace and elegant sauna benches. The solid 44 mm plank ceiling ensures excellent heat storage and a pleasant room climate - even during intensive use. The technology remains discreetly in the background - for an undisturbed, pure sauna experience. The glazing opens up the room visually, while the solid construction guarantees stability and durability. Whether by day or night - this sauna represents a balance between technology and nature.
Use & comfort of the Joris Large wellness cabin - versatile, comfortable, well thought-out
The integrated, covered terrace adds a stylish transition zone to your sauna - perfect for cooling off, for moments of peace and quiet or as an architectural highlight in the garden. The generous interior area of almost four square meters ensures freedom of movement and shared experiences. Despite its spaciousness, the Joris Large with its compact external dimensions blends harmoniously into gardens, vacation homes or spa areas.
Discover now - your new sauna culture starts here
Choose your personal wood type, define the design and configure your Joris Large sauna exactly as you want it. Discover how warmth, space and design combine to create a new lifestyle.
Scope of delivery
Everything at a glance - what's included!
- Sauna unit "Joris Large" with covered terrace
- Chosen wood type (spruce, thermo pine or Shou Sugi Ban)
- Roof design according to selection
- Sauna benches
- Glass front elements
- Assembly instructions
Individual sauna solutions for the highest demands
Are you planning something special and looking for a solution that exactly matches your ideas?
Whether custom-made sizes, individual material requests, special color concepts or technical adaptations - almost anything is possible.
Thanks to flexible production, even demanding special requests can be professionally realized - with the aim of creating a wellness experience that fits seamlessly into your living space.
Do you have a special idea?
- Contact us directly - we will advise you personally and develop your dream sauna together.
Specifications
| Sauna capacity | 6 Persons |
| Dimensions | 2.348 m × 2.424 m × 2.800m |
| Floor area | larger than 3.22 m² (incl. vestibule) |
| weight | approx. 500 kg |
| Wood types | Spruce, Shou Sugi Ban (charred spruce), thermo pine |
| Color finish | oiled or powder-coated |
| Roof options | Bitumen shingles or tarpaulin |
| Glazing | Front door, partial glazing or full glazing |
| Benches | Lime wood standard; optional black alder or thermo pine |
| Heating systems | Harvia or HUUM, wood or electric stoves - optional |
| Chimney options | Harvia stainless steel, Harvia black or Basic Chimney - optional |
| Delivery forms | Flat packed or fully assembled |
| Plank thickness | 44mm |
Guide: How to choose the right Sauna heater for your Celsium garden sauna
The right Sauna heater is crucial for the overall sauna experience - it influences the heat quality, heating time and energy efficiency. To help you realize the full potential of your Celsium garden sauna, here is a compact and well-founded guide to choosing the right heater.
1. calculate the room volume correctly
First determine the internal volume of your sauna:
Width × depth × height = m³ (cubic meters)
Example for the Ula Micro: 1.35 m × 1.25 m × 2.30 m = approx. 3.9 m³
Important:
If your sauna has glass elements, thin outer walls or a free-standing location in the garden, you should add approx. 1.5 m³ per square meter of uninsulated area. This so-called insulation reserve compensates for heat loss.
2. choose the right heating capacity
The following applies as a guideline
1 kW heating output per 1 m³ room volume
- For 4 m³ → ideally a stove with 4 kW
- For intermediate values, round up rather than down - so that your stove works reliably even at low outside temperatures
3. note the power connection
There are two variants depending on the model and output:
- 230 V connection (Schuko plug) for compact sauna heaters
- 400 V three-phase current (heavy current) for more powerful models
Note: The connection must always be carried out by a qualified electrician.
5 Control & comfort functions
Modern control units not only offer temperature control, but also timer functions, app control and safety:
- Manual: classic rotary control module
- Digital: external control unit with precise temperature control
- Smart: App control via WLAN or 4G (e.g. HUUM UKU Wi-Fi)


