Oval sauna "Raiki"

There are moments when rectangular shapes are no longer enough. When we yearn for something softer, more organic. For forms that remind us of natural caves, of sheltered retreats, of primal dwellings.

Most garden saunas follow conventional designs: angular, rectangular, functional. They serve their purpose, but they lack something special, something extraordinary. They are wellness devices, but not experiential spaces.

Many garden owners want more: a sauna that not only works, but fascinates. One that not only relaxes, but inspires. One that becomes a focal point in the garden and simultaneously conveys a feeling of security that goes far beyond the ordinary sauna atmosphere.

The oval sauna "Raiki" is different. Its curved, organic shape breaks with all conventions. The generous round window, 150cm in diameter, dominates the front like a marveling eye, flooding the interior with daylight. The integrated anteroom creates a buffer zone between everyday life and relaxation – you don't just enter a sauna, you enter an experience.

With space for up to 4 seated or 2 reclining people, the Raiki combines spaciousness with an intimate atmosphere. It's not just a sauna. It's a statement.

The 4 most important advantages at a glance

Exceptional oval shape as an eye-catcher: The organically curved design makes the Raiki an architectural highlight in your garden – a sauna that attracts attention and blends harmoniously into natural garden landscapes, instead of simply "standing there".

Integrated anteroom for a relaxed transition: The separate changing room and anteroom (approx. 1.5m deep) creates a buffer zone between the outside world and the sauna experience – you can change in peace, leave your towels and leave everyday life behind before entering the actual sauna room.

Impressive 150cm round window for light flooding: The generous round window brings natural daylight into the interior and enhances the cave-like, sheltered feeling of space – a unique combination of openness and protection.

Spacious sauna room for 2-4 people: The 1.9m long sauna lounger allows for full stretching, while 60cm wide benches offer comfortable space for social sauna sessions – including complete equipment with LED lighting, ventilation system and sauna accessories.

Detailed product description

Organic architecture meets Finnish sauna tradition

The oval sauna "Raiki" deliberately breaks with the right-angled forms of conventional garden saunas. Its curved, capsule-like silhouette is reminiscent of natural forms – smooth stones on a riverbank, seed pods, organic structures that we instinctively perceive as harmonious and calming.

This form is more than just an aesthetic expression. It creates a unique spatial experience. The curved walls generate a cave-like atmosphere that conveys a deep sense of security. There are no sharp corners, no hard edges – only flowing transitions that make the space softer, warmer, more inviting.

With a total length of 4.05m and a width of 2.40m, the Raiki occupies a footprint of 9.72 m² – ample space for a full sauna experience with an anteroom, yet still compact enough for medium-sized gardens. The height of 2.20m allows for standing upright in the anteroom and provides sufficient headroom in the sauna itself.

In the garden, the Raiki sauna becomes a real eye-catcher. It's not just a functional addition, but a deliberately designed element that attracts attention and sparks curiosity. Visitors will be amazed, conversations will arise – your sauna will become the topic of conversation.

The anteroom – where everyday life ends

A key unique feature of the Raiki sauna is its integrated anteroom. This area, approximately 1.5 meters deep, between the entrance door and the sauna room, creates a valuable buffer zone and transforms sauna bathing from a simple activity into a multi-stage ritual.

You enter the vestibule from the outside through the 1.69m high and 59cm wide front door. Here you are greeted by the characteristic wooden atmosphere, but not yet by the intense heat. The vestibule offers space to change clothes comfortably, to leave your clothes, towels and personal belongings. You can take your time, arrive, and consciously experience the transition.

This separate area offers several advantages: Practically speaking, it prevents cold outside air from flowing directly into the heated sauna room when you open the outside door. The heat is retained, and energy loss is minimized. Psychologically, the anteroom creates a clear separation between everyday life and relaxation. You pass through a kind of "airlock," signaling to your body and mind: Now it's my time.

The anteroom is equipped with a floor grate that ensures secure footing and good ventilation in the floor area. After your sauna session, you can cool down here in peace before going outside – a particularly valuable comfort in winter.

The 150cm round window – a portal to nature

The dominant design element of the Raiki is its impressive round window with a diameter of 150cm. This generous opening breaks through the wall like a giant porthole and floods the interior with natural daylight.

The window is made of 8mm thick safety glass that easily withstands the extreme temperatures of a sauna. It provides excellent insulation, remains clear and transparent for years, and is designed for continuous use.

The effect of this window is multifaceted: During the day, it brings light into the sauna and further accentuates its organic form. You have a generous view of your garden, taking in the trees, the sky, and perhaps birds flying by. This connection to nature significantly enhances the relaxing effect of the sauna.

In the evening, when the sauna is illuminated from within, the round window becomes a shining eye in your garden – a magical sight that creates atmosphere and emphasizes the special shape of the sauna even in the dark.

Psychologically, the round window creates an interesting ambivalence: On the one hand, it opens up the room and creates a sense of spaciousness. On the other hand, the circular shape reinforces the feeling of security – you look out into the world from a protective cave, but feel safe and enveloped yourself.

Proven log construction in an exceptional form

Despite its unconventional shape, the Raiki follows the proven log construction method. The curved walls are made from specially cut, solid logs that interlock precisely to form a stable, heat-insulating shell.

Nordic spruce is used as standard. The side walls are made of 42mm thick logs, the back wall of 28mm thick material. This dimensioning ensures optimal stability and excellent heat retention. The natural structure of the spruce, with its light, inviting color and characteristic grain, underscores the organic character of the sauna.

For even greater weather resistance, thermally modified wood is available as an option. This material, modified through controlled heat treatment, is particularly resistant to moisture, fungal growth, and rot. It is more dimensionally stable than untreated wood and acquires a rich, dark color that lends the sauna an even more exclusive character.

The curved construction demands the highest level of craftsmanship. Each log must be cut at precisely the right angle to create the flowing oval shape. Sturdy feet guarantee stability, while tension bands made of corrosion-resistant stainless steel allow for future retensioning, ensuring that the sauna retains its perfect shape even after years of use.

Aspen wood interior fittings for skin-friendly comfort

All interior surfaces that you come into contact with during your sauna session are made of high-quality aspen wood. This Nordic hardwood is the material of choice for sauna interiors and offers ideal properties.

Aspen wood has very low thermal conductivity – it heats up slowly, even at high temperatures. You can lean back comfortably or stretch out on the sauna bench without burning yourself on hot wooden surfaces. This comfort factor is crucial for long, relaxing sauna sessions.

Furthermore, aspen is virtually resin-free and develops hardly any inherent odor, even under intense heat. Infusions of its essential oils can unfold their pure aromas without being masked by woody notes. The fragrance experience remains pure and authentic.

The naturally light color of the aspen wood reflects the light coming in through the large round window and enhances the bright, friendly atmosphere in the interior.

The sauna is equipped with 60cm wide benches that offer comfortable seating with backrests. The 1.9m long sauna lounger allows even taller people to stretch out completely. For social sauna sessions, up to 4 people can sit comfortably; for intensive solo sessions or for two people, the lounger can be used at its full length.

The aspen wood floor grate protects your feet from direct contact with the cold floor while allowing for good air circulation. Bench panels give the interior a cohesive, high-quality look.

Flexible heating options

Raiki offers you a choice of different heating methods. You can equip the sauna with either a modern electric heater or a traditional wood-burning heater – both options are available as complete sets including sauna stones.

The recommended Harvia Legend Home XW electric sauna heater with 10.8kW output offers easy operation, precise temperature control, and fast heating times. Simply program the desired temperature, and the heater will reliably heat the room. Ideal for regular use and spontaneous sauna sessions.

Alternatively, the Harvia Linear Compact 18 with 14.3 kW is available – a high-quality wood-burning stove with a BImSchV2-compliant kit for low-emission combustion. The wood-burning stove creates an authentic sauna experience with the characteristic scent and crackling of a real fire. Consciously tending the fire becomes a meditative ritual and enhances the feeling of slowing down.

A fire-resistant plate made of natural stone on the back wall ensures maximum safety in both versions. The included aspen wood stove guard prevents accidental contact and completes the well-thought-out safety concept.

Professional equipment for an optimal sauna climate

The Raiki is fully equipped and ready for immediate use. An integrated ventilation grille ensures continuous air exchange and guarantees a fresh, pleasant sauna climate without stuffiness. Fresh air flows in in a controlled manner, while stale air and excess moisture are extracted – a prerequisite for healthy, beneficial sauna sessions.

The LED lighting creates pleasant, glare-free light and atmospherically highlights the unique character of the interior. Especially in the evenings, when the large round window is illuminated from within, a magical atmosphere is created.

The curved roof is covered with high-quality black bitumen roof shingles. These offer reliable protection against all weather conditions and accentuate the sauna's organic shape. The shingles elegantly follow the curve, giving the roof a scale-like texture reminiscent of natural surfaces.

A complete sauna accessory set is included: a thermometer and hygrometer for monitoring temperature and humidity, as well as a high-quality sauna bucket with a matching ladle. You can immediately begin enjoying relaxing sauna infusions and the beneficial effects of essential oils.

Cozy cave atmosphere

The combination of organic form, the large round window, and high-quality wood craftsmanship creates a unique atmosphere in the Raiki. You don't enter a rectangular room, but rather a kind of contemporary interpretation of a natural cave – incredibly cozy, protective, and calming.

The curved walls gently envelop you. The light streaming through the round window accentuates the organic forms. The natural wood grain enhances the connection to nature. All of this together creates a feeling of space that goes far beyond the ordinary sauna atmosphere.

This special atmosphere significantly enhances the relaxing effect of the sauna. You don't feel like you're in a functional space, but in a special place – a refuge specifically created to leave everyday life behind and find peace.

Kit or complete service

The Raiki oval sauna is delivered as a precisely prefabricated kit. All components – including the curved elements – are exactly cut, numbered, and come with detailed assembly instructions and all necessary mounting hardware.

Due to its unconventional shape and curved construction, assembly requires slightly more skill than with rectangular models. Experienced DIYers can assemble the sauna themselves with patience, precision, and at least one other person – a challenging but rewarding project.

For those who prefer immediate comfort or don't feel confident with the more complex assembly, the Raiki can also be ordered fully assembled. Experienced professionals will handle the entire setup, make all necessary adjustments, and hand over the sauna ready for use.

Both options offer identical quality – the decision depends on your craftsmanship, available time and personal preferences.

Year-round wellness in an exceptional setting

The Raiki is designed for year-round use. Its robust log construction, high-quality materials, and meticulous workmanship withstand all weather conditions. The organic shape is not only aesthetically pleasing but also functionally advantageous: the curved surfaces offer fewer points of attack for wind and weather than angular designs.

After a long day at work, you enter the anteroom, leave the everyday world behind, pass through the inner door, and immerse yourself in the comforting atmosphere of the sauna. The warm wood surroundings, the light streaming in through the round window, the gently curved walls – all this creates a place where relaxation is not only possible, but inevitable.

On weekends, the Raiki sauna becomes a conscious wellness ritual. Time you give yourself or share with your partner, family, or friends. The special atmosphere makes every sauna session an experience that goes beyond ordinary relaxation.

A statement for your garden

The oval sauna "Raiki" is more than just a wellness device. It's an architectural statement, a work of art, a real eye-catcher. It showcases your taste, your appreciation for exceptional design, and your willingness to break with convention.

Permanently available in your own garden. With an integrated vestibule for a relaxed transition. Flooded with natural light through the impressive round window. Constructed from high-quality materials for decades of enjoyment.

Create this extraordinary place that is always there for you – and that impresses everyone who sees it.

Technical specifications at a glance

External dimensions: 4.05m (L) x 2.40m (W) x 2.20m (H)
Floor area: 9.72 m²
Capacity: 2 people lying down, 4 people sitting

construction

• Construction method: Log cabin construction (oval shape)
• Side panels: Nordic spruce (thermally modified wood optional), 42mm thick
• Back panel: Nordic spruce (thermally modified wood optional), 28mm thick
• Interior fittings: Aspen wood (sauna benches, sauna lounger, backrests, bench panels, stove guard, floor grate)

Front and windows

• 1x large round window (diameter 150cm)
• 1x glass door
• Glass thickness: 8mm safety glass
• Door dimensions: 1.69m x 0.59m

Room layout

• Anteroom: approx. 1.5m deep (changing room and buffer zone)
• Sauna room: separate room behind the anteroom

Sauna benches

• Benches: 60cm deep
• Sauna lounger: 1.9m long (for full stretching)

sauna oven

• Optionally without a sauna heater, with an electric heater or with a wood-burning heater
• Recommended: Harvia Legend Home XW 10.8kW electric oven or Harvia Linear Compact 18 14.3kW wood-burning stove with BImSchV2 set
• Each as a complete set with sauna stones

equipment

• LED lighting
• Ventilation grilles for optimal ventilation
• Black bitumen roof shingles
• Fire protection panel made of natural stone (back wall)
• Stable mounting hardware
• Assembly plan (for kit)

Sauna accessory set (included in delivery)

• thermometer
• hygrometer
• Infusion bucket with ladle

Delivery options

• As a kit (for self-assembly, requires manual dexterity)
• Fully assembled (upon request)

Wood options

• Standard: Nordic spruce
• Optional: Thermally modified wood (at extra cost)

Quality

• High-quality Nordic woods
• Precise workmanship with curved elements
• Exceptional organic form
• Integrated vestibule
• Usable all year round

Scope of delivery

• Oval sauna "Raiki" (as a kit or fully assembled)
• Side walls and back wall made of Nordic spruce (thermally modified wood optional)
• Front with large round window (Ø 150cm) and glass door (8mm safety glass)
• Vestibule with separate entrance door
• Sauna benches made of aspen wood (60cm deep)
• Sauna lounger made of aspen wood (1.9m length)
• Backrests made of aspen wood
• Bench panels made of aspen wood
• Oven guard made of aspen wood
• Aspen wood floor grate (for anteroom and sauna room)
• Fire protection board made of natural stone
• LED lighting
• Ventilation grille
• Black bitumen roof shingles
• feet
• Stainless steel tension bands
• Mounting material
• Construction plan
• Sauna accessory set: thermometer, hygrometer, sauna bucket with ladle

Available as an option:

• Sauna heater (electric or wood-burning) as a complete set with sauna stones
• Cladding made of thermally modified wood (instead of standard cladding made of Nordic spruce)

🔌 Note regarding electrical installation – for a completely safe wellness experience

Our garden saunas – even in the "delivered fully assembled" version – are manufactured with the utmost care and craftsmanship.
However, the electrical wiring and connection of the sauna heater are generally not carried out at the factory , but are done on-site by your trusted electrician .

This process ensures that your sauna can be perfectly adapted to the local conditions , installed according to standards and operated reliably in the long term.

For a stress-free installation, we provide you with a clearly structured, easy-to-understand guide that supports your electrician in the final steps – so that your new wellness retreat is ready for use quickly and safely.