Important Safety Information
This section contains critical safety instructions. Read thoroughly before operating the Sunster 12V/24V 8KW Diesel Air Heater.
- Ensure proper ventilation during operation to prevent carbon monoxide buildup. Do not operate the heater in enclosed, unventilated spaces.
- Keep all flammable materials, such as fuel, paper, and fabrics, at a safe distance from the heater.
- Regularly inspect fuel lines and electrical connections for any signs of damage, wear, or leaks. Address any issues immediately.
- The heater operates at high temperatures. Avoid direct contact with hot surfaces during and immediately after operation.
- In case of any malfunction, unusual odors, or excessive smoke, immediately turn off the heater and refer to the troubleshooting section or contact customer support.
- Do not modify the heater or its components. Use only original replacement parts.

Image: The Sunster diesel air heater unit, highlighting its safety features including short-circuit protection, overheat protection, and intelligent temperature control. These features are designed to ensure safe operation in various environments.
Product Overview
The Sunster 12V/24V 8KW Diesel Air Heater is an all-in-one, portable unit designed to provide efficient heating for various vehicles and indoor spaces. It features a compact design, remote control operation, and an LCD monitor for easy management of heating functions.
Components
- Diesel Heater Unit (integrated fuel tank)
- Remote Control
- LCD Monitor
- Fuel Pump
- Exhaust Pipe
- Intake Pipe
- Silencer
- Installation Accessories (clamps, hoses, wiring harness, etc.)

Image: A comprehensive view of the Sunster 8KW Diesel Air Heater, showcasing the main orange and black unit along with its complete set of accessories, including the LCD monitor, remote control, muffler, air ducts, and various installation components.

Image: The Sunster diesel air heater unit positioned with its remote control and LCD monitor, illustrating the primary control interfaces for the device.
Setup and Installation
The Sunster diesel air heater is designed for straightforward installation in various environments, including vehicles (cars, trucks, buses, RVs, trailers) and indoor spaces. Proper installation is crucial for safe and efficient operation.
General Installation Steps
- Select Location: Choose a stable, flat, and non-flammable surface for the heater unit. Ensure adequate clearance around the unit for air intake, exhaust, and heat dissipation.
- Mounting: Securely fasten the heater unit using the provided brackets and hardware. Ensure it is firmly attached to prevent movement during operation.
- Fuel Connection: Connect the fuel line from the integrated fuel tank to the heater's fuel pump. Ensure all connections are tight and free from leaks.
- Exhaust System: Install the exhaust pipe, directing exhaust gases safely away from the vehicle or occupied space. Ensure the exhaust outlet is clear of obstructions and points downwards to prevent water ingress. Attach the silencer for reduced noise.
- Air Intake: Connect the air intake pipe. Position the intake to draw clean, fresh air, away from exhaust fumes.
- Electrical Connection: Connect the heater to a 12V or 24V DC power source, ensuring correct polarity. The unit is compatible with both voltage systems. Use appropriate wiring and fuses.
- Control Panel Installation: Mount the LCD monitor in an accessible location within the cabin or desired heating area.
- Initial Fuel Prime: Before first use, it is essential to prime the fuel system to ensure fuel reaches the combustion chamber. Follow the specific priming instructions in the detailed manual.
For detailed, vehicle-specific installation instructions, consult the full product manual provided with your heater.
Operating Instructions
The Sunster diesel air heater can be operated conveniently via the integrated LCD monitor or the remote control.
LCD Monitor Operation

Image: A close-up of the LCD monitor, detailing its buttons (SET KEY, UP/DOWN, ON/OFF) and the various icons and numerical displays for temperature, voltage, fan speed, and operational status.
- Power On/Off: Press the ON/OFF button to initiate or terminate the heating process.
- Temperature Adjustment: Use the UP/DOWN buttons to set your desired temperature. The heater operates within a comfortable range of 8°C to 36°C (46°F to 96.8°F).
- Setting Parameters: Press the SET KEY to cycle through various adjustable settings such as time, pump oil volume, and ignition plug power selection. Use the UP/DOWN buttons to modify the values.
- Display Modes: The LCD provides real-time information on the heater's working status, current temperature, system voltage, and fan speed.
- Timing Function: The heater includes a timing function (countdown mode) allowing you to schedule its operation for a specific duration.
Remote Control Operation
The remote control offers convenient operation from a distance, enabling functions such as preheating the vehicle before entry.
- Pairing: Ensure the remote control is properly paired with the heater unit. Refer to the detailed manual for specific pairing instructions.
- Power On/Off: Use the designated buttons on the remote to power the heater on or off.
- Temperature Control: Adjust the temperature settings remotely to your preference.
- Preheating: Activate the preheating function to warm up the space before you arrive.

Image: The Sunster diesel air heater shown in a tent environment, illustrating its timing function with a graphical representation of countdown mode for scheduled operation.
Maintenance
Regular maintenance is essential to ensure the longevity, efficiency, and safe operation of your Sunster diesel air heater.
- Cleaning: Periodically clean the exterior of the heater unit. Ensure air intake and exhaust vents are free from dust, dirt, and debris to maintain optimal airflow.
- Fuel System: Inspect fuel lines and connections for any signs of wear, cracks, or leaks. Replace damaged components immediately to prevent fuel leaks.
- Air Filter: Check and clean or replace the air filter as needed to maintain optimal airflow and prevent contaminants from entering the combustion chamber.
- Exhaust System: Verify that the exhaust pipe is securely attached and free from blockages. Ensure the muffler is in good condition.
- Electrical Connections: Ensure all electrical connections are secure, clean, and free from corrosion.
- Fuel Quality: Always use clean, high-quality diesel fuel to prevent clogging of the fuel system and ensure efficient combustion.
For detailed maintenance schedules and specific procedures, refer to the complete user manual provided with your product.
Troubleshooting
The Sunster diesel air heater is equipped with a self-test function and advanced automatic control technology to identify and manage abnormal operating conditions. If you encounter an issue, consult the table below.
Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not start | No power supply, low fuel level, ignition failure, or control panel error. | Check power connection and fuse, ensure sufficient fuel, inspect ignition plug, restart the unit. |
| Insufficient heating | Clogged air intake/exhaust, low fuel pressure, incorrect temperature setting, or fan malfunction. | Clear any obstructions from air paths, check fuel filter, adjust temperature setting, verify fan operation. |
| Excessive smoke or unusual odor | Poor fuel quality, incorrect fuel-air mixture, carbon buildup in the combustion chamber, or exhaust leak. | Use clean diesel fuel, check fuel pump settings, perform maintenance to clean carbon deposits, inspect exhaust system. |
| Overheat protection activated | Blocked airflow, fan malfunction, high ambient temperature, or sensor error. | Ensure clear airflow around the unit, check fan operation, allow the unit to cool down, verify sensor connections. |
| LCD monitor displays error code | Specific system fault detected by the heater's self-diagnostic system. | Refer to the detailed user manual for a list of fault codes and their corresponding solutions. |
If the problem persists after attempting these solutions, please contact Sunster customer support for further assistance.
Specifications
Technical specifications for the Sunster 12V/24V 8KW Diesel Air Heater, Model XMZ-D1-A2013.

Image: A graphic displaying key product information and dimensions for the Sunster diesel air heater, including product name, power, voltage, fuel type, and operating temperature range.
| Feature | Detail |
|---|---|
| Brand | Sunster |
| Model Number | XMZ-D1-A2013 |
| Power Output | 8KW |
| Rated Voltage | 12V/24V DC |
| Fuel Type | Diesel |
| Fuel Consumption | 0.11 - 0.48 L/H |
| Operating Temperature Range | -40°C to +80°C (-40°F to 176°F) |
| Altitude Operation | Up to 3000 m (9843 ft) |
| Dimensions (L x W x H) | Approx. 38cm x 25.5cm x 27.5cm (14.9in x 10in x 10.8in) |
| Control Method | LCD Monitor & Remote Control |
Warranty and Support
Specific warranty details for the Sunster 12V/24V 8KW Diesel Air Heater are typically provided with the product packaging or on the manufacturer's official website. Please retain your proof of purchase for any warranty claims.
For technical support, spare parts, or further assistance with your Sunster diesel air heater, please contact Sunster customer service through their official channels.
Manufacturer: Sunster
Product ASIN: B0DK26S6WF





