Harvia Onni Onyx One infrared sauna
- For 1 person
- Full-spectrum infrared
- Intuitive touch screen
- Tailored to your needs
- Support with planning and installation
- A smooth process from idea to sauna
Product description
A refined infrared cabin for one with balanced full-body warmth. A full-spectrum radiator behind the back and carbon panels at the sides, calves and feet create even heat distribution. The black waxed hemlock exterior and red cedar interior give the cabin a calm, premium character.
Key facts - Infrared sauna
Full-spectrum infrared warmth
Delivers a balanced mix of short and long infrared waves for deep yet comfortable heat.
Certified full-spectrum technology
Tested and certified by the Seibersdorf Radiation Lab for safe and reliable infrared performance.

Built for long term use
Replaceable infrared lamps and high-quality components ensure durability and easy maintenance.
From the world's leading sauna brand
Backed by over 75 years of experience, Harvia delivers trusted quality and innovation in heat and wellness.

About
Onni Onyx One is designed for effortless daily infrared use. The heat is available almost instantly, without the need to pre-heat the entire cabin. This makes sessions flexible and easy to integrate into everyday routines. A full-spectrum radiator behind the back provides intensive and deep infrared warmth, supported by carbon panels at the sides, under the calves and under the feet. The combination ensures even heat distribution across the body while keeping the surrounding air at a comfortable level. The black waxed hemlock exterior gives the cabin a clear and modern presence. Inside, red cedar adds warmth and a natural scent that enhances the experience over time. The open glass front keeps the design visually balanced and light. A large touch screen allows straight forward adjustment of temperature and lighting. Chromotherapy lighting and integrated Bluetooth audio support a personalized session. The cabin is built from structured elements with integrated components, enabling assembly within a few hours and reliable use for years. Onni Onyx One is a personal infrared space — defined in design, precise in heat delivery, and built for dependable daily use.
Specifications
- SKU
- SGN1010CBT
- Floor area
- 1 m²
- Calculatory sauna volume
- 1.62 m³
- Exterior surface material
- Hemlock with black wax
- Interior surface material
- Red Cedar
- Bench material
- Red Cedar
- Door type
- 8 mm single pane safety glass, clear
- Door knob type
- Vertical handle wooden
- Window type
- 8 mm single pane safety glass, clear
- Infrared temperature range
- 20–70 °C
- Infrared voltage
- 230 V
- Infrared radiator type
- Carbon, Full-spectrum
- GTIN
- 6417659046640
Size & Weight
Product
- Height
- 2000 mm
- Width
- 1073 mm
- Depth
- 998 mm
- Net weight
- 135.5 kg
Package
- Height
- 650 mm
- Width
- 1120 mm
- Depth
- 2200 mm
- Gross weight
- 222 kg
Files
Everything included for the full sauna experience
Exterior
- Hemlock wall boards with external black wood wax 8 mm tempered clear glass front
Interior
- Red Cedar (backrest, heater frame, and bench) Horizontal slats 7" touch display LED color lighting Bluetooth music system with speakers
Heating Equipment
- 1 × full-spectrum infrared heaters, back (350 W) with individual dimmers 2 × Carbon infrared heater, sides (380 W) 1 × Carbon infrared heater under bench (200 W) 1 × Carbon infrared heater floor (200 W)
Accessories
- Instructions for installation and use

Our materials
Find answers to the most common questions
Infrared benefits
Deep heat for total wellbeing.
Infrared warmth reaches deep beneath the skin to gently ease tension in muscles and joints. It helps reduce stiffness, soothe soreness, and support recovery after exercise or long days. Regular sessions help maintain flexibility and support long-term joint and muscle health.
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