Qingdao Donjelion International Trade Co., Ltd. is one of the most credible manufacturers and suppliers of diesel water parking heater in China. If you're going to buy customized diesel water parking heater, welcome to get more information from our factory. Good service and quality products are available.

Cold weather operation creates significant challenges for commercial vehicles. Low temperatures can increase engine wear, reduce fuel efficiency and cause uncomfortable driving conditions. Donjelion Diesel Water Parking Heater is engineered to solve these problems by heating the engine coolant before startup and providing continuous heat support during parking periods.

This 12V diesel heating system delivers a maximum heating output of 5kW with ±10 percent accuracy, allowing it to quickly raise coolant temperature and maintain stable thermal performance. With a compact structure measuring only 220 × 91 × 174mm and a lightweight design of 2.0kg, the heater can be installed in limited spaces while maintaining excellent heating efficiency.

The heater operates within a wide ambient temperature range from -40°C to 80°C, making it suitable for harsh winter conditions in Europe, North America and other cold climate regions.

1. Powerful 5kW Heating Performance for Cold Environments

The biggest challenge for trucks and commercial vehicles during winter is engine startup in freezing conditions. The Donjelion system provides 5kW diesel water heater performance, allowing coolant temperature to rise quickly before engine ignition.

By preheating the engine coolant, the heater helps:

• Reduce engine startup resistance in low temperatures
• Minimize mechanical wear caused by cold starts
• Improve initial fuel combustion efficiency
• Reduce waiting time before vehicle operation

For fleet operators, this means lower maintenance costs and improved vehicle availability during winter seasons.

2. Low Energy Consumption and Efficient Fuel Usage

Fuel efficiency is a key concern for commercial vehicle operators. This truck water heater consumes only 0.1 to 0.45L per hour of diesel, depending on heating conditions.

The rated electrical consumption is only 30W, with a rated current of 2.5A, which allows the heater to operate efficiently without placing excessive load on the vehicle battery system.

Compared with traditional idling heating methods, this solution reduces unnecessary fuel consumption while maintaining comfortable cabin temperatures and engine protection.

3. Stable Operation Under Extreme Temperatures

Commercial vehicles often operate in challenging environments where reliability is essential. Donjelion diesel coolant heater is designed to work from -40°C to 80°C, ensuring dependable performance in severe cold regions.

The 12V power design supports common vehicle electrical systems, with an operating voltage range of 10V to 17V. This provides stable operation even when battery voltage fluctuates during vehicle use.

4. Compact Design for Flexible Installation

Space is limited in many trucks, buses and special vehicles. The compact dimensions of 220 × 91 × 174mm allow easier integration into different vehicle layouts.

The lightweight 2kg structure reduces installation difficulty while maintaining durability. Vehicle manufacturers, distributors and fleet maintenance companies can benefit from easier installation and reduced modification requirements.

Donjelion diesel water parking heater is widely used in vehicles requiring reliable heating and engine protection solutions.

Commercial Trucks

Provides engine preheating and cabin heating support for long-distance trucks operating in cold climates.

Buses and Coaches

Maintains comfortable passenger environments while reducing unnecessary engine idling.

Construction Vehicles

Supports excavators, loaders and other heavy equipment working in winter conditions.

Special Vehicles

Suitable for emergency vehicles, engineering vehicles and outdoor service vehicles requiring stable heating.

Donjelion provides professional technical assistance for global customers, including:

• Product selection according to vehicle type and climate conditions
• Installation guidance for distributors and fleet operators
• Wiring and system integration support
• Troubleshooting assistance during product operation

Our engineering team focuses on creating reliable thermal management solutions for commercial vehicles and transportation applications worldwide.

Donjelion understands that reliability is critical for international customers. We provide:

• Complete product quality inspection before shipment
• Technical documentation and installation guidance
• Responsive customer support
• Long term cooperation support for distributors and OEM partners

We work closely with global partners to ensure stable product performance throughout the service life of the heating system.

Choosing the right heating supplier is not only about product price but also about long term operating value.

Donjelion focuses on new energy and vehicle thermal management solutions, providing products designed around real customer requirements.

Our advantages include:

• Professional vehicle heating system development experience
• Stable manufacturing capability for international supply
• Strict quality control during production
• Products designed for harsh operating environments
• Technical support for global distributors and vehicle manufacturers

For procurement teams, this means a reliable supply partner who understands both product performance and market requirements.

1. What is a diesel water parking heater used for?

A diesel water parking heater heats engine coolant before startup and provides additional heating support for vehicle cabins. It helps reduce cold start damage and improves winter driving comfort.

2. How much fuel does this heater consume?

The Donjelion heater consumes approximately 0.1 to 0.45 liters of diesel per hour, depending on heating output and operating conditions.

3. Can this heater work in extremely cold weather?

Yes. The heater is designed to operate between -40°C and 80°C, making it suitable for cold regions and winter transportation applications.

4. Is this heater suitable for trucks?

Yes. The 12V diesel heater for trucks is designed for commercial vehicles including trucks, buses and special vehicles that require engine preheating.

5. What is the maximum heating capacity?

The maximum heating power reaches 5kW, providing strong thermal output for engine coolant heating and vehicle temperature management.

Reliable heating is essential for commercial vehicles operating in demanding climates. Donjelion Diesel Water Parking Heater combines powerful 5kW heating output, low fuel consumption and compact installation design to help customers reduce operating costs and improve vehicle reliability.

Contact Donjelion today for product specifications, OEM cooperation and global distribution opportunities.

📞：8613685337922

📫：sales@qd-djl.com

Hot Tags: diesel water parking heater, China diesel water parking heater manufacturers, factory, 12V 24V Diesel Parking Heater, 5kw12V Water Parking Heater, Brushless Lithium Battery Heater, Horizontal Lithium Battery Integrated Parking Heater, Parking Air Heater, Vertical Diesel Heater Unit