About the product
A premium combined indoor Finnish sauna and infrared sauna for 3 people from the OKA Design range, made of dark Thermo Abachi wood. It is equipped with a 6 kW HANSCRAFT electric heater with an intelligent WiFi controller and a modern infrared heating system with nano carbon foil. The sauna features a starry ceiling with a black base, ambient lighting, a lumbar physiotherapy panel, and a comfortable backrest and a complete set of HANSCRAFT sauna accessories.
Dimensions: 210 × 160 × 208 cm.
LUXURY SAUNA MADE FROM PREMIUM WOOD
Selected African timbers Thermo Abachi and Thermo Ayous were used in the manufacture of this combined sauna. Both materials are considered among the most suitable for demanding sauna environments. The woods undergo controlled thermal modification at temperatures of approximately 180–215 °C, without the use of any chemical substances. During this process, sugars, resins, and organic components that are typically responsible for internal stress, odors, and biological instability are broken down.
The result is a material with significantly reduced moisture absorption, high dimensional stability, and long-term resistance to extreme temperatures and humidity. Thanks to its open, porous structure, the wood naturally regulates moisture in the space, supports a stable microclimate, and contributes to even heat distribution throughout the sauna. The absence of resins ensures that the wood does not release odors even at high temperatures and remains hygienically clean.
Thermo Abachi is characterized by extremely low thermal conductivity, which means that benches, backrests, and contact surfaces remain pleasant to the touch even at temperatures exceeding 90 °C. In its dark Thermo variant, the wood gains a deep, homogeneous color tone that is stable over time and requires no additional surface treatment. The use of solid boards in continuous lengths without joints further increases structural strength and emphasizes both the technical and visual quality of the entire interior.
OKA DESIGN – COLLABORATION WITH ARCHITECT ONDŘEJ KAMENICKÝ
The OKA Design collection was created in collaboration with architect Ondřej Kamenický, with whom HANSCRAFT has long cooperated on the development of premium wellness products. This partnership is behind the popular OKA and OKANDINAVIA collections, known for their refined work with materials, proportions, and calm, timeless design.
Building on this experience, the collaboration was also extended to the sauna category. Ondřej Kamenický designed combined saunas for HANSCRAFT that naturally integrate Finnish sauna bathing with infrared technology while maintaining a consistent design language of the OKA Design series. The result is a sauna that does not feel like a compromise between two systems, but rather as a single, cohesive wellness concept.
INTERIOR, ATMOSPHERE, AND COMPLETE EQUIPMENT
The sauna interior is designed with ergonomics, comfort, and flexible use for up to three people in mind. The double bench made of dark Thermo Abachi is complemented by a comfortable backrest and a lumbar physiotherapy panel with a soft pad, allowing targeted heating of the lower back and lumbar area. The low thermal conductivity of the wood ensures comfortable contact even at high operating temperatures.
A carefully designed ambient lighting system under the benches, around the footrests, and on the rear wall enhances the atmosphere of calm. The dominant interior feature is a starry ceiling with a black base, creating a visually tranquil and focused environment. Decorative wooden cladding of the heating panels with integrated lighting adds another layer of elegance. The entire space is enclosed by 6 mm tempered dark gray glass with black handles and hinges, combining safety, functionality, and modern design.
The sauna includes a complete set of black HANSCRAFT sauna accessories, including a bucket with ladle, sand timer, thermometer and hygrometer. The sauna is ready for immediate use without the need for any additional accessories.
TECHNOLOGY AND CONSTRUCTION SOLUTIONS
The OKA Fusion Synergy 3 sauna is designed as a combination of a classic Finnish sauna and a modern infrared sauna. Finnish sauna operation is provided by 6 kW HANSCRAFT electric heaters, integrated into a heating system with a touch control panel. An intelligent WiFi controller allows convenient remote operation via the Smart Life mobile application and precise adjustment of operating parameters.
The infrared section features a modern infrared heating system with nano carbon foil, ensuring even and energy-efficient heating of the space. The system uses infrared radiation in the IR-C spectrum and includes a combination of multiple heating panels and a targeted lumbar physiotherapy panel with an output of 300 W. The total output of the infrared system is 3,175 W, enabling deep, targeted heating without overheating the air.
The construction is complemented by rear wall cladding made of thin black slate stone, which contributes to heat accumulation and serves as a strong aesthetic element. The lower and rear parts of the sauna are treated with Black Sauna Wax, increasing resistance to moisture and mechanical wear while unifying the dark interior appearance. The construction solution also includes an integrated floor designed for long-term operation and easy maintenance.
