1. Introduction
Thank you for choosing the Klarstein Wonderwall Infrared Heater. This manual provides essential information for the safe and efficient use of your device. Please read these instructions carefully before installation and operation, and keep them for future reference.
The Klarstein Wonderwall Infrared Heater utilizes carbon crystal technology to provide efficient and comfortable heating. It is designed for wall or ceiling mounting and features a weekly timer, automatic shut-off, and open window detection for optimized energy use.

Figure 1: Klarstein Wonderwall Infrared Heater, front view.
2. Safety Instructions
Always observe the following safety precautions to reduce the risk of fire, electric shock, or injury:
- Read all instructions before using this heater.
- Do not use this heater in the immediate vicinity of a bath, shower, or swimming pool.
- Do not use this heater if it has been dropped.
- Do not use if there are visible signs of damage to the heater.
- Keep combustible materials such as furniture, curtains, and other flammable items at least 1 meter (3.3 feet) from the front of the heater.
- Ensure the power supply voltage matches the rating label on the heater.
- Do not cover the heater. Overheating can occur if the heater is covered.
- 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.
- The heater is suitable for bathroom use (IP24 rated) but must not be installed directly above a bath or shower.
3. Product Overview and Features
3.1 Included Components
- 1 x Klarstein Wonderwall Infrared Heater
- 1 x Mounting Material (screws, wall plugs)
- 1 x User Manual
3.2 Key Features
- Infrared Heating Technology: Utilizes carbon crystal infrared for efficient and targeted heating, warming objects and people directly.
- High Energy Efficiency: Up to 95% of power is converted into heat radiation.
- Silent Operation: Operates without a fan, ensuring quiet performance.
- Allergy-Friendly: No fan means no dust circulation, beneficial for allergy sufferers.
- Integrated Thermostat: Allows precise temperature control (0 to 37 °C).
- Weekly Timer: Program heating schedules for each day of the week.
- Automatic Shut-Off: Enhances safety and energy saving.
- Open Window Detection: Automatically adjusts temperature when an open window is detected.
- Space-Saving Design: Flat panel for wall or ceiling mounting.
- IP24 Protection: Suitable for use in bathrooms, protected against splashing water.
- Overheat Protection: Integrated safety mechanism.

Figure 2: The Wonderwall heater demonstrating 95% energy efficiency.

Figure 3: Key features including silent operation, no odor, extra-thin design (4 cm), 300 watts power, and light weight (2.4 kg).
4. Installation
4.1 Choosing a Location
The Klarstein Wonderwall heater can be mounted on a wall or ceiling. Ensure the chosen location is free from obstructions and allows for proper heat distribution. Maintain a minimum distance of 1 meter (3.3 feet) from combustible materials. For bathroom installation, ensure it is not directly above a bath or shower and adheres to local electrical regulations.

Figure 4: The heater is suitable for various indoor spaces, including bathrooms, due to its IP24 protection rating.
4.2 Mounting Instructions
- Unpack the heater and verify all mounting materials are present.
- Mark the desired drilling points on the wall or ceiling using the provided template (if applicable) or by measuring the heater's mounting holes.
- Drill holes and insert the wall plugs.
- Secure the mounting brackets (if separate) or the heater itself to the wall/ceiling using the screws.
- Ensure the heater is securely fastened before proceeding.

Figure 5: The heater's dimensions (30 cm x 100 cm) and an example of a wall-mounted installation. Mounting accessories are included.
4.3 Electrical Connection
Once mounted, simply plug the heater's power cord into a suitable electrical outlet. Ensure the outlet meets the voltage requirements (220-240 V~ | 50/60 Hz) and is properly grounded. The cable length is approximately 140 cm.
5. Operating Instructions
The Klarstein Wonderwall heater is operated via its integrated controls or the remote control.
5.1 Basic Operation
- Power On/Off: Press the power button on the unit or remote control to turn the heater on or off.
- Temperature Setting: Use the temperature controls (up/down arrows) to set your desired room temperature between 0°C and 37°C. The heater will automatically maintain this temperature.

Figure 6: Intuitive operation with temperature control and timer functionality.
5.2 Weekly Timer Function
The weekly timer allows you to program specific heating times for each day of the week. Refer to the detailed instructions in the separate user manual for programming steps, as this functionality can be complex.
5.3 Automatic Shut-Off and Open Window Detection
- The heater features an automatic shut-off function for safety and energy saving.
- The open window detection feature will temporarily pause heating if a sudden drop in temperature (indicating an open window) is detected, resuming operation once the window is closed or after a set period.

Figure 7: Infrared technology provides targeted warmth, complemented by features like overheat protection and suitability for allergy sufferers.
6. Maintenance
Regular cleaning ensures optimal performance and extends the lifespan of your heater.
- 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 immerse the heater in water or any other liquid.
- Ensure no water enters the internal components.
- Store the heater in a cool, dry place if not in use for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power supply; power button not pressed; overheat protection activated. | Check power cord connection and wall outlet. Press power button. Allow heater to cool down. |
| Heater not producing enough heat. | Temperature setting too low; room too large for heater's capacity; open window detected. | Increase temperature setting. Ensure room size is within effective range (up to 6 m²). Close windows/doors. |
| Remote control not working. | Batteries depleted or incorrectly inserted; remote out of range; signal obstructed. | Replace batteries. Ensure correct battery polarity. Point remote directly at heater. Reduce distance. |
| Heater turns off unexpectedly. | Overheat protection activated; open window detected; timer setting. | Allow heater to cool. Close windows. Check timer settings. |
If the problem persists after attempting these solutions, please contact customer support.
8. Technical Specifications
- Model: 53032813
- Brand: KLARSTEIN
- Power: 300 Watt
- Voltage: 220 - 240 V~ | 50/60 Hz
- Effective Range: Up to 6 m²
- Dimensions (WxHxD): Approx. 30 x 100 x 4 cm (11.81"W x 39.37"H x 1.57"D)
- Weight: Approx. 2.4 kg (5.28 pounds)
- Cable Length: Approx. 140 cm
- Protection Class: IP24 (splash-proof)
- Max Temperature Setting: 37 Degrees Celsius
- Mounting Type: Wall Mount
- Fuel Type: Electric
- Manufacture Year: 2019
9. Disposal Information
Do not dispose of electrical appliances with household waste. Use separate collection facilities. Contact your local authorities for information regarding available collection systems. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being.
10. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support or service inquiries, please visit the official Klarstein website or contact their customer service department directly. Please have your model number (53032813) and purchase details ready when contacting support.
You can find more information about Klarstein products and support at the KLARSTEIN Store.







