Harvia Onni Sienna Duo infrared sauna
- For 2 persons
- Full-spectrum infrared
- Intuitive touch screen
- Tailored to your needs
- Support with planning and installation
- A smooth process from idea to sauna
Product description
An infrared cabin for two with immediate, evenly distributed warmth. Full-spectrum radiators and carbon panels provide balanced infrared coverage without pre-heating. Mahogany surfaces and the open glass front create a warm and composed environment for shared sessions.
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 Sienna Duo combines natural materials with responsive infrared technology. The warmth is available quickly, without the need to heat the entire cabin volume in advance. Each seating position is supported by a full-spectrum radiator behind the back and carbon panels at the sides and lower body. This ensures steady and even infrared warmth that feels controlled and comfortable. The mahogany exterior presents a warm, natural finish that feels both timeless and inviting. Inside, mahogany combined with hemlock adds depth and harmony, while the glass front keeps the overall look open and composed. Temperature and lighting are adjusted via a large touch screen. Chromotherapy lighting and integrated Bluetooth audio support a personalized session. The structured construction enables installation within a few hours and provides reliable infrared comfort over years of use. Onni Sienna Duo brings infrared wellbeing into everyday life — warm in expression, steady in performance, and built for lasting use.
Specifications
- SKU
- SGN1310MT
- User capacity
- 1-2
- Floor area
- 1.5 m²
- Calculatory sauna volume
- 2.16 m³
- Exterior surface material
- Mahogany
- Interior surface material
- Mahogany
- Bench material
- Hemlock
- 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
- 6417659046671
Size & Weight
Product
- Height
- 2000 mm
- Width
- 1073 mm
- Depth
- 1298 mm
Package
- Height
- 650 mm
- Width
- 1380 mm
- Depth
- 2200 mm
- Gross weight
- 264 kg
Files
Everything included for the full sauna experience
Exterior
- Mahogany wall boards with external clear lacquer 8 mm tempered clear glass front
Interior
- Mahogany and hemlock (backrest, heater frame, and bench) Horizontal slats 7" touch display LED color lighting Bluetooth music system with speakers
Heating Equipment
- 2 × 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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