Introduction
This manual provides comprehensive instructions for the safe and efficient operation, installation, and maintenance of your KROAK 12V/8KW Diesel Heater. Designed for various applications including trucks, car trailers, RVs, and other suitable environments, this heater offers rapid heating, energy efficiency, and multiple control options. Please read this manual thoroughly before using the product to ensure proper function and safety.
Safety Information
Your safety is paramount. Adhere to all warnings and precautions to prevent injury or damage. This KROAK diesel heater is equipped with multiple safety features, but proper installation and usage are critical.
- Ensure adequate ventilation when operating the heater, especially in enclosed spaces, to prevent carbon monoxide buildup.
- Do not block the air intake or exhaust vents. Maintain clear space around the unit.
- Use only diesel fuel as specified. Do not use gasoline or other volatile fuels.
- Keep flammable materials away from the heater during operation.
- Regularly inspect fuel lines and electrical connections for leaks or damage.
- The heater's upgraded motherboard provides short-circuit, reverse connection, over-voltage, and over-heat (≥270°C/518°F) protection. However, always ensure correct wiring and power supply.
- Do not operate the heater if it is damaged or malfunctioning. Contact support for assistance.
- Keep out of reach of children and pets.
Figure 1: Multiple Security Protections. This diagram illustrates the various built-in safety mechanisms of the KROAK diesel heater, including protection against overheating, short circuits, reverse polarity connections, and over-voltage conditions, ensuring safe operation.
Product Overview
The KROAK 12V/8KW Diesel Heater is a robust heating solution designed for efficiency and versatility. It features an all-aluminum construction for rapid heat transfer and offers multiple control methods for user convenience.
Key Features:
- Rapid Heating: All-aluminum construction with fast heat transfer technology, providing warmth within 1 second. Outputs 5,500-18,000 BTUs, heating 20-27 m² in 10 minutes.
- Energy Efficient: Fuel consumption of only 0.15L/h-0.44L/h, significantly lower than many other models. Equipped with a 10L fuel tank for up to 10 hours of continuous heating.
- Plateau Mode: Supports operation at altitudes up to 5500M, automatically adjusting for optimal performance.
- Multiple Control Methods: Operates via Bluetooth control (Smart APP), remote control, and LCD panel.
- Smart APP Functions: Includes timer setting, plateau mode adjustment, temperature control, fan mode, language switch, and unit switch.
- Safety Protections: Features short-circuit, reverse connection, over-voltage, and over-heat protection (≥270°C/518°F).
- Versatile Application: Suitable for caravans, campervans, trucks, car trailers, RVs, and indoor environments like carpenter's shops.
Figure 2: KROAK Diesel Heater System. This image displays the main diesel heater unit alongside its accompanying remote control, the smartphone application interface for Bluetooth control, and the integrated LCD control panel, highlighting the multiple ways to operate the device.
Figure 3: Rapid Heating Mechanism. An internal cutaway view of the heater demonstrating the rapid heat transfer process, where air is quickly warmed and circulated, allowing the unit to produce heat within 1 second of activation.
Figure 4: Energy Efficiency Comparison. This graphic illustrates the superior fuel efficiency of the KROAK diesel heater, showing its lower fuel consumption rate (0.15L/h ~ 0.44L/h) compared to other typical diesel heaters (0.28L/h ~ 0.65L/h), leading to extended operation times.
Figure 5: Multiple Application Scenarios. This image showcases the versatility of the 12V 8KW KROAK diesel heater, depicting its suitability for use in various environments such as recreational vehicles (RVs), carpenter's workshops, and large trucks, providing warmth in diverse settings.
Figure 6: Large Heating Coverage. This visual representation highlights the significant heating capacity of the KROAK diesel heater, capable of warming an area between 20 square meters and 25 square meters, making it effective for various room sizes or vehicle interiors.
Setup and Installation
Proper installation is crucial for the safe and efficient operation of your KROAK diesel heater. It is recommended that installation be performed by a qualified professional if you are unsure about any steps.
Items Included:
- KROAK Diesel Heater Unit
- 10L Fuel Tank
- Remote Control
- LCD Control Panel
- Necessary installation accessories (e.g., fuel line, exhaust pipe, air intake pipe, wiring harness, mounting plate, clamps, nuts, bolts). (Based on typical diesel heater kits, not explicitly listed in "whats_in_the_box" but implied by product type)
General Installation Steps:
- Choose a Location: Select a dry, stable, and well-ventilated location for the heater unit. Ensure sufficient clearance around the air intake and exhaust.
- Mount the Heater: Securely mount the heater unit using the provided mounting plate and hardware. Ensure it is stable and vibration-free.
- Fuel System Connection:
- Install the 10L fuel tank in a safe, accessible location.
- Connect the fuel line from the tank to the heater's fuel pump, and then from the fuel pump to the heater unit. Ensure all connections are tight and leak-free.
- Prime the fuel system according to the instructions in the Operating section to ensure fuel reaches the heater.
- Exhaust System: Connect the exhaust pipe to the heater and route it safely to the exterior, ensuring exhaust gases are directed away from the vehicle/structure and any air intakes. Use appropriate heat shielding if necessary.
- Air Intake System: Connect the air intake pipe. Ensure it draws clean air and is not obstructed.
- Electrical Connection:
- Connect the heater to a 12V-24V DC power supply. Ensure the power source can provide sufficient current.
- Connect the LCD control panel and any other electrical components (e.g., remote receiver) as per the wiring diagram.
- Verify all electrical connections are secure and correctly polarized to prevent short-circuit or reverse connection issues.
- Initial Check: Before first use, double-check all connections (fuel, exhaust, air, electrical) for security and proper routing.
Operating Instructions
Your KROAK diesel heater offers flexible control options. Familiarize yourself with each method for optimal use.
Figure 7: Smart Control Options. This image illustrates the three primary methods for controlling the KROAK diesel heater: via a smartphone application (Smart APP Control) using Bluetooth, a dedicated remote control, and the integrated LCD panel control, providing versatile user interaction.
1. Using the LCD Control Panel:
- Power On/Off: Press the power button to turn the heater on or off.
- Temperature Adjustment: Use the up/down arrows to set the desired temperature.
- Mode Selection: Navigate through different modes (e.g., heating, fan) using the mode button.
- Settings: Access system settings for language, unit (Celsius/Fahrenheit), and other configurations.
2. Using the Remote Control:
- Power On/Off: Use the ON/OFF buttons to activate or deactivate the heater.
- Temperature/Power Adjustment: Use the '+' and '-' buttons to increase or decrease the heating power or target temperature.
- Ensure the remote control has fresh batteries and is within range of the heater's receiver.
3. Using the Smart APP (Bluetooth Control):
- Download APP: Scan the QR code in the product packaging or search for the KROAK heater app on your smartphone's app store.
- Pairing: Enable Bluetooth on your smartphone. Open the app and follow the on-screen instructions to pair with your KROAK heater.
- Control Functions: The app allows for:
- Turning the heater on/off.
- Adjusting temperature settings.
- Setting a timer for automatic operation.
- Activating Plateau Mode.
- Switching to fan mode (for cold air circulation).
- Accessing language and unit settings.
Plateau Mode:
The KROAK diesel heater supports operation at high altitudes up to 5500 meters. When operating at higher elevations, activate the "Plateau Mode" via the LCD panel or Smart APP. This mode automatically adjusts the fuel pump and combustion parameters to compensate for lower oxygen levels, ensuring efficient and clean burning.
Figure 8: Plateau Mode Operation. This image depicts a vehicle in a snowy, mountainous environment, accompanied by an altitude reference graph. It highlights the heater's capability to operate effectively in "Plateau Mode" at elevations up to 5500 meters, automatically adjusting for atmospheric conditions.
Maintenance
Regular maintenance ensures the longevity and efficient performance of your KROAK diesel heater.
- Daily/Before Use: Check fuel level. Ensure air intake and exhaust are clear of obstructions.
- Weekly/Frequent Use:
- Inspect all fuel lines and connections for leaks or damage.
- Check electrical wiring for fraying or loose connections.
- Clean the exterior of the heater with a damp cloth.
- Monthly/Seasonal:
- Inspect the air filter and clean or replace if necessary. A clogged filter can reduce efficiency.
- Check the exhaust pipe for any blockages or excessive carbon buildup. Clean if needed.
- Examine the combustion chamber for soot buildup. If significant, professional cleaning may be required.
- Ensure the fuel tank is clean and free of contaminants.
- Storage: If storing the heater for an extended period, drain the fuel tank and run the heater until all remaining fuel is consumed to prevent fuel degradation and blockages. Store in a dry, protected area.
Troubleshooting
This section provides solutions to common issues you might encounter with your KROAK diesel heater. For problems not listed here, or if solutions do not resolve the issue, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not start. | No power, low fuel, clogged fuel line, air in fuel line, faulty glow plug. | Check power connections and fuse. Refill fuel tank. Prime fuel system. Check glow plug. |
| Heater produces black smoke. | Poor combustion, incorrect fuel/air mixture, clogged exhaust, warped plate (as per review). | Ensure proper ventilation. Check air intake and exhaust for blockages. Activate Plateau Mode if at high altitude. Inspect combustion chamber for soot. |
| Heater shuts off unexpectedly. | Over-heat protection activated, low voltage, low fuel, sensor error. | Check for obstructions around heater. Verify power supply voltage. Refill fuel. Check error codes on LCD panel. |
| Remote control/APP not working. | Batteries dead, out of range, Bluetooth not paired, app issue. | Replace remote batteries. Move closer to heater. Re-pair Bluetooth. Restart app/phone. |
| Insufficient heating. | Low power setting, large space, air leaks, clogged air filter. | Increase power setting. Ensure space is within heating capacity (20-27 m²). Seal any drafts. Clean/replace air filter. |
Specifications
| Attribute | Detail |
|---|---|
| Brand | KROAK |
| Model Name | diesel heater 8KW with app |
| Item Model Number | SKUK63136 |
| Manufacturer Part Number | SKUK63136 |
| Product Dimensions | 48 x 44 x 27 cm |
| Item Weight | 7 kg |
| Power Output | 8KW (5,500-18,000 BTUs) |
| Voltage | 12V-24V DC |
| Fuel Consumption | 0.15L/h - 0.44L/h |
| Fuel Tank Capacity | 10L |
| Heating Area Coverage | 20-27 m² |
| Altitude Support | Up to 5500M (Plateau Mode) |
| Control Methods | Bluetooth (Smart APP), Remote Control, LCD Panel |
| Safety Features | Short-circuit, Reverse Connection, Over-voltage, Over-heat (≥270°C/518°F) protection |
Warranty and Support
For warranty information, technical support, or service inquiries regarding your KROAK Diesel Heater, please refer to the warranty card included with your product or contact KROAK customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
Contact information for KROAK customer support can typically be found on the manufacturer's official website or on the product packaging.
