1. Introduction
This manual provides essential information for the safe and efficient operation of your Comfort Zone CZ650B 1500W Digital Baseboard Space Heater. Please read all instructions carefully before use and retain this manual for future reference.

Image 1: Comfort Zone CZ650B 1500W Digital Baseboard Space Heater. This image shows the overall design of the black baseboard heater with its digital control panel and heat output.
2. Important Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and injury. This heater is designed with several safety features:
- Overheat Protection: The heater is equipped with an internal sensor that automatically shuts off the unit if it reaches an unsafe temperature.
- Tip-Over Switch: An integrated safety switch automatically cuts power to the heater if it is accidentally knocked over.
- Stay-Cool Body: The exterior of the heater is designed to remain cool to the touch during operation, reducing the risk of burns.
- Dent-Proof End Panels: Constructed with durable materials to withstand minor impacts.
General Safety Guidelines:
- Do not operate any heater with a damaged cord or plug, or after the heater malfunctions or has been dropped or damaged in any manner.
- Do not use outdoors. This heater is intended for indoor use only.
- Avoid placing the heater on soft surfaces, like a bed, where openings may become blocked.
- Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, and curtains at least 3 feet (0.9 m) from the front of the heater and keep them away from the sides and rear.
- Always unplug the heater when not in use.
3. Setup
The Comfort Zone CZ650B heater requires no assembly and is ready for immediate use. Simply follow these steps:
- Unpack the heater from its packaging.
- Place the heater on a firm, level surface. Ensure it is positioned away from walls, furniture, and any combustible materials as per safety guidelines.
- Plug the power cord into a standard 120V AC electrical outlet. Ensure the outlet is in good condition and not overloaded.

Image 2: Dimensions of the Comfort Zone CZ650B heater. This image illustrates the length, depth, and height of the baseboard heater, showing its compact, low-profile design.
4. Operating Instructions
Your Comfort Zone CZ650B heater features a digital control panel for easy operation.

Image 3: Close-up of the digital display and control buttons on the Comfort Zone CZ650B heater. This image shows the power, mode, and temperature adjustment buttons.
Power On/Off
- Press the ON/OFF button on the control panel to turn the heater on or off.
Adjusting Heat Settings
The heater offers two heat settings:
- Press the MODE button to cycle between the two heat settings: 750W (Low) and 1500W (High).
- The digital display will indicate the selected power level.

Image 4: The Comfort Zone CZ650B heater in operation, illustrating the powerful heat output. This image highlights the heater's ability to provide warmth to a room.
Setting the Digital Thermostat
- Use the UP and DOWN arrow buttons to set your desired temperature.
- The digital display will show the set temperature. The heater will cycle on and off to maintain this temperature.
- Temperature range: 35°F to 95°F.
Timer Function
The heater includes a 12-hour sleep timer:
- Press the TIMER button to activate the timer. Each press will increase the timer setting by one hour, up to 12 hours.
- The heater will automatically turn off once the set time has elapsed.
5. Key Features
- Powerful Heating: 1500-watt heating element provides efficient warmth for medium-sized rooms.
- Silent Operation: Designed to operate quietly, ensuring a peaceful environment without distracting noise.
- Energy-Efficient: Allows for targeted heating of specific rooms, potentially reducing overall heating costs by not heating unused areas.
- Durable Design: Features dent-proof end panels for enhanced longevity and a consistently sleek appearance.

Image 5: A woman relaxing in a living room with the Comfort Zone CZ650B heater, emphasizing its whisper-quiet operation and ability to create a warm, cozy atmosphere.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your heater.
- Cleaning: Always unplug the heater before cleaning. Use a soft, damp cloth to wipe the exterior surfaces. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the heater in a cool, dry place. It is recommended to keep it in its original packaging to protect it from dust and damage.
- Inspection: Periodically inspect the power cord and plug for any signs of damage. If any damage is found, discontinue use and contact customer support.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | Not plugged in; power switch off; tip-over switch activated; overheat protection activated. | Ensure plug is fully inserted. Turn power switch on. Place heater on a flat, stable surface. Allow unit to cool down for 10-15 minutes. |
| Heater produces insufficient heat. | Low heat setting selected; thermostat set too low; room size too large. | Select higher heat setting (1500W). Increase thermostat setting. Consider using in a smaller, appropriately sized room. |
| Heater cycles on and off frequently. | Thermostat set too close to ambient room temperature. | Adjust thermostat to a higher or lower setting to create a wider temperature differential. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Comfort Zone |
| Model Number | CZ650B |
| Power Output | 1500 Watts |
| Voltage | 120V |
| Amperage | 12.5 Amps |
| Heat Settings | 2 (750W / 1500W) |
| Thermostat | Digital, Adjustable (35°F - 95°F) |
| Safety Features | Overheat Protection, Tip-Over Switch, Stay-Cool Body |
| Dimensions (DxWxH) | 10.83"D x 35.75"W x 6.1"H |
| Weight | 4 pounds |
| Room Type | Bedroom, Living Room, Office |
| Heating Coverage | Up to 500 sq. ft. |
9. Product Videos
Comfort Zone Heater Line-Up
Video 1: An overview of the Comfort Zone heater product line, showcasing various models and their features. This video provides a general introduction to the brand's heating solutions.
Comfort Zone CZ650B Digital Baseboard Heater Overview
Video 2: A detailed look at the Comfort Zone CZ650B Digital Baseboard Heater, highlighting its silent operation, digital controls, and timer function.
10. Warranty and Support
This Comfort Zone CZ650B heater comes with a 1-year warranty against manufacturer defects. For warranty claims, technical support, or any inquiries, please contact Comfort Zone customer service.
Manufacturer: Mr. Brands, LLC.
For more information, visit the Comfort Zone Store.





