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Celsium Ula Large garden sauna with covered vestibule

by Celsium
€4.385,00

incl. VAT

🚚 Free shipping to the EU mainland & Switzerland for orders over €300

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Elegant wellness for a sophisticated outdoor ambience

The Ula Large sauna combines sophisticated design with practical additional comfort. It builds on the clear, organic tone of the Ula series - enhanced by an elegant, covered front area. The result is a luxurious oasis of well-being, perfect for patios, gardens or roof terraces.

Product character of a Ula Large wellness cabin

The Ula Large sauna is a spacious outdoor sauna with a full interior like the Ula Small - supplemented by a sheltered anteroom. This provides space for cooling down or storage. It is aimed at users who value design and functionality.

Design & materials of the Ula Large designer sauna

The architecturally clear appearance with a rounded silhouette and clear lines makes the Ula Large a stylish eye-catcher. Exterior materials and color variants correspond to the Ula collection (e.g. Sugi-Ban, Thermowood etc.), whereby the covered vestibule is harmoniously integrated into the overall design.

Technology & functions of the solid wood sauna Ula Large

The

sauna has a fully dimensioned interior for a classic sauna experience. The covered vestibule can be used flexibly - for example as a relaxation area or for storage. As with all Ula models, state-of-the-art technology is combined with minimal structural effort - without smoke extraction, with quiet, electric heat.

Frontansicht der schwarzen Celsium Ula Large Sauna im Freien neben drei Event-Fahnen vor grüner Kulisse

Use & comfort of the Ula Large wellness unit

The Ula Large is ideal for all those who want to enjoy regular outdoor wellness - with more space to move around and options for using the anteroom. Whether it's relaxation after sweating or storage space for equipment - this added value makes the sauna particularly comfortable.

Discover now - your personal wellness room

Experience space, tranquillity and high-quality sauna enjoyment in a design that elegantly adapts to your living space.

🔶 Scope of delivery

Everything at a glance - what's included!

  • Exterior structure of the sauna (incl. front area and roof structure)
  • Interior space in full sauna size
  • Covered vestibule according to model
  • Cladding made of thermo-treated wood or Sugi Ban (according to selection)
  • Documentation on Installation and maintenance

FinA-Wellness-Individuelle-Losungen

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 up to 6 Persons
Dimensions (WxHxD) 2.2m x 2.38m x 2.84m
Floor space approx. 6.7 m²
Weight approx. 600 kg (depending on version)
Exterior cladding Thermally treated spruce wood or Sugi Ban (depending on color choice)
Color variants Black (charred), natural (light), opaque white
Roof options Bitumen shingles in honeycomb look, black
Inner benches Two reclining surfaces made of solid wood, ergonomically adapted
Benches Inside: two wide benches for sitting/reclining
Heating Compatible with electric or wood-burning stoves (e.g. Harvia or HUUM)
Assembly formats Pre-assembled segments, ready to install, suitable for point foundation or concrete slabs
Plank thickness 44mm

Guide: How to choose the right Sauna heater for your Celsium garden sauna

The right Sauna heater is crucial to the overall sauna experience - it affects heat quality, heat-up 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 heat output

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

Depending on the model and output, there are two variants:

  • 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 controls 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)
 Infografik von FinA Wellness Store mit dem Titel „Kompetent gewählt: Der richtige Ofen für deine Kabine“ – erklärt Heizleistung nach Raumvolumen (1 kW pro m³), Zusatzbedarf bei Glasflächen (+1 kW/m²) und empfiehlt Leistungsreserve von 10–20 % bei Außensaunen und Massivholzkabinen