The RAIS Nexo 185 Bio Bioethanol Fireplace is the tallest and most architecturally imposing model in the Nexo Bio range. Its strict cubic form, sharp lines and exceptional 1860mm height create a dramatic vertical focal point for large contemporary interiors.
Despite its substantial scale, the Nexo 185 Bio requires no chimney or permanent fixed installation. This gives far greater freedom when positioning the fireplace within a suitable room and avoids the need for a conventional flue or gas supply. A grounded 230V electrical connection is required to power the automated burner, ignition controls and integrated monitoring system.
The electronically controlled bioethanol burner provides an adjustable heat output from 1.6kW to 3.4kW, together with a 2.5kW ECO mode. This allows the flame and warmth to be adjusted according to the room and occasion, whether the fireplace is being used primarily as an atmospheric feature or to provide noticeable supplementary heat.
A generous 7.8-litre fuel tank provides an estimated burn time of up to 31 hours, depending on the selected output level. This long operating time reduces the need for frequent refilling and makes the fireplace suitable for extended use.
Integrated system monitoring supports controlled ignition, operation and refuelling. If an irregularity is detected, the fireplace shuts down automatically and must be reset before it can be restarted. This provides a more managed and sophisticated operating experience than a basic manually filled bioethanol burner.
The appearance of the flame can be personalised using decorative elements within the combustion chamber. Ceramic logs create a more traditional firewood-inspired look, while decorative glass or stones produce a cleaner, more minimalist expression. Each option is designed to complement the Nexo’s precise architectural styling.
Further customisation is available through a choice of six carefully selected colours, premium handle options and either a steel or glass door. This allows the Nexo 185 Bio to be tailored to suit a wide range of design-led interiors.
With its exceptional height, automated burner and flexible flueless installation, the RAIS Nexo 185 Bio is an excellent choice for customers wanting a commanding real-flame feature with a strong architectural presence.
Key Features
- Extra-tall freestanding bioethanol fireplace
- Tallest model in the Nexo Bio range
- Strict cubic design
- Sharp architectural lines
- 1860mm overall height
- No chimney required
- No permanent fixed installation required
- Can be repositioned when necessary
- Automated electronic burner
- Integrated ignition and safety monitoring
- Automatic shutdown if irregularities are detected
- Adjustable heat output
- Maximum output of 3.4kW
- Minimum output of 1.6kW
- 2.5kW ECO operating mode
- Up to 31 hours estimated burn time
- 7.8-litre fuel tank
- Suitable for rooms from 34m²
- Choice of six colours
- Choice of premium handles
- Steel or glass door options
- Decorative logs, glass or stone options
- Requires a grounded 230V electrical supply
Expert Insight
The Nexo 185 Bio is best chosen where visual scale is a central part of the interior design. Its exceptional height gives it a much stronger architectural presence than the shorter Nexo models, while the burner performance and control system remain the same.
Suitability
The RAIS Nexo 185 Bio Bioethanol Fireplace is well suited to large living rooms, open-plan interiors, high-ceilinged spaces, and design-led properties requiring a substantial real-flame focal point without a conventional chimney or fixed flue system. The manufacturer specifies a minimum approved room size of 34m².
Installation / Technical Notes
The RAIS Nexo 185 Bio is a freestanding bioethanol fireplace requiring no chimney or permanent fixed installation. A 230V grounded electrical supply is required for ignition, controls and integrated system monitoring.
The supplied dimensions are understood as:
- Height: 1860mm
- Width: 446mm
- Depth: 398mm
Technical performance:
- Minimum heat output: 1.6kW
- ECO heat output: 2.5kW
- Maximum heat output: 3.4kW
- Fuel tank capacity: 7.8 litres
- Estimated burn time: up to 31 hours
- Minimum approved room size: 34m²
- Recommended fuel: bioethanol with 96.5–97.5% purity
Only the manufacturer-recommended bioethanol should be used. Ventilation, refuelling, positioning and clearance requirements must follow the current RAIS installation and operating instructions.
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