1. Introduction
Thank you for choosing the Radialight SIRIO 5 Convector 500W. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your new electric heater. Please read these instructions carefully before use and retain them for future reference.
2. Safety Information
Important Safety Instructions:
- Read all instructions before installing or using this heater.
- Do not use this heater in the immediate vicinity of a bath, a shower, or a swimming pool.
- Do not cover the heater. Covering the heater can cause overheating.
- Keep combustible materials such as furniture, pillows, bedding, papers, clothes, and curtains at least 1 meter (3 feet) from the front of the heater and away from the sides and rear.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
- Ensure the voltage indicated on the rating label corresponds to the mains voltage in your home.
- Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has been dropped or damaged in any manner.
- To prevent a possible electrical shock, do not immerse the cord, plug, or heater in water or other liquid.
- This heater is equipped with overheat protection. If the heater overheats, it will automatically shut off.
3. Product Overview
The Radialight SIRIO 5 is a 500W electric convector heater designed for indoor use. It features a sleek design, an aluminum heating element, and overheat protection for safety.

Figure 1: Front view of the Radialight SIRIO 5 Convector Heater. This image shows the main body of the heater with its white finish and top ventilation grilles.

Figure 2: The Radialight SIRIO 5 Convector Heater shown installed on a wall in a modern living space, demonstrating its discreet and integrated appearance.

Figure 3: Close-up view of the control panel located on the top right of the heater. It features a digital display showing temperature and mode, along with buttons for menu (M), function (F), and up/down arrows for adjustments, and a power button.
4. Setup and Installation
4.1 Unpacking
- Carefully remove the heater from its packaging.
- Check for any signs of damage. If the heater appears damaged, do not use it and contact customer support.
- Ensure all components are present: the heater unit, and any mounting accessories.
4.2 Wall Mounting
The Radialight SIRIO 5 is designed for wall mounting. Ensure the chosen location is away from combustible materials and allows for proper air circulation.

Figure 4: Rear view of the Radialight SIRIO 5 Convector Heater, showing the integrated wall mounting brackets and the power cord with a European plug.
- Choose a suitable wall location, ensuring there is at least 1 meter (3 feet) clearance from any flammable objects.
- Mark the positions for the mounting brackets on the wall. Refer to the specific mounting template (if included) or measure the distance between the brackets on the back of the heater.
- Drill holes at the marked positions and insert appropriate wall plugs (not always included, depending on wall type).
- Secure the mounting brackets to the wall using screws.
- Carefully lift the heater and hook it onto the installed wall brackets, ensuring it is securely seated.
4.3 Electrical Connection
- Ensure the heater is correctly mounted before connecting to power.
- Plug the power cord into a suitable 230V electrical outlet.
- Do not use extension cords or power strips with this appliance.
5. Operating Instructions
5.1 Power On/Off
- To turn the heater on, press the power button (⏻) on the control panel. The display will illuminate.
- To turn the heater off, press the power button again. The display will turn off.
5.2 Setting Temperature
- When the heater is on, the display shows the current temperature or set temperature.
- Use the Up (▲) and Down (▼) arrow buttons to adjust the desired room temperature.
- The heater will automatically maintain the set temperature.
5.3 Mode Selection
- Press the 'M' (Menu) button to cycle through available operating modes (e.g., Comfort, Eco, Anti-freeze, Programmed). Refer to the display icons for specific mode indicators.
- Press the 'F' (Function) button to access additional settings or confirm selections within a mode.
5.4 Overheat Protection
The SIRIO 5 is equipped with an internal safety device that automatically switches off the heater in case of overheating. If this occurs, unplug the heater, allow it to cool down for at least 30 minutes, and remove any obstructions that may have caused the overheating. Plug it back in and restart. If the issue persists, contact customer support.
6. Maintenance
6.1 Cleaning
- Always unplug the heater and allow it to cool completely before cleaning.
- Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Do not allow water to drip into the interior of the heater as this could create a fire or electric shock hazard.
- Periodically clean the air inlets and outlets to ensure proper airflow. Use a soft brush or vacuum cleaner attachment.
6.2 Storage
- If the heater is not used for extended periods, store it in a cool, dry place.
- It is recommended to store the heater in its original packaging to protect it from dust and damage.
7. Troubleshooting
- Heater does not turn on:
- Ensure the power cord is securely plugged into a working outlet.
- Check the circuit breaker or fuse box.
- Verify the power button on the heater is pressed.
- Heater turns off unexpectedly:
- The overheat protection may have activated. Unplug the heater, let it cool, and check for obstructions.
- Ensure the room temperature setting is higher than the current room temperature.
- Insufficient heating:
- Check that the set temperature is appropriate for the desired warmth.
- Ensure the heater is not covered and air vents are clear.
- The 500W model is designed for smaller spaces or supplementary heating. For larger rooms, a higher wattage heater may be required.
If you experience issues not covered here, please contact customer support.
8. Specifications
| Brand | RADIALIGHT |
| Model Number | SIRIO 5 |
| Power | 500 Watts |
| Voltage | 230 Volts |
| Material | Aluminum |
| Product Dimensions (L x W x H) | 45.01 x 10.21 x 42.01 cm |
| Item Weight | 3.9 Kilograms |
| Special Feature | Overheat Protection |
| Heating Method | Convection |
| Mounting Type | Wall Mount |
| Recommended Uses | Home, Office, Bathroom |
| Energy Class | A to G |
| Annual Energy Consumption | 120 Watts |
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Radialight customer service through their official website. Please have your model number (SIRIO 5) and purchase date available when contacting support.







