Diesel Water Heater for Heavy Duty Trucks

Diesel Water Heater for Off-Road Vehicles

Diesel Water Heater for Engineering Machinery

5KW Diesel Water Heater

This 5kw diesel water heater is widely fitted for RVs, pickup trucks, heavy duty trucks, SUV, off-road vehicles, engineering machinery, farm vehicles, electric vehicles and yachts.

It preheats engine coolant and warms up cabin space in cold winter, works well for aftermarket refit and bulk wholesale projects.

5000W Fast Heating
Intelligent Inverter Control
Low Noise Operation
Wide Temperature Adaptation

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Key selling points

Dual Brushless Motor
Smart Inverter System
Ultra Quiet Performance
Rapid Heat Up
Safety Protection Functions
Wide Compatibility

Product Details
Product Review
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Product Details

Item	Parameter
Product Name	Diesel Water Heater
Heating Power	5000W
Rated Voltage	12V
Fuel Consumption	0.38L/H
Operating Temperature	-40℃ ~ 80℃
Product Weight	2.12KG
Dimension	22217490 mm
Applicable Fuel	0#,-10#,-35# Diesel fuel

Product Advantages

Adopts dual brushless motor structure with longer service life and more stable running status. Built in intelligent frequency conversion system, it automatically adjusts output according to set temperature, cutting fuel consumption by up to one-third.
Optimized internal structural design brings ultra quiet running effect, low vibration, will not disturb rest inside the vehicle. It achieves fast coolant temperature rise, making the cabin warm in a short time.
Equipped with overheat protection and low voltage protection modules. It will not drain vehicle battery heavily during working. Works reliably under extreme cold -40℃ environment, supporting different grades of diesel fuels for cold‑area use.

Q: What is the core difference between water diesel heater and air diesel heater?

A: Water heater heats vehicle coolant liquid. It can preheat vehicle engine meanwhile warm the cabin. It is more suitable for RV, yacht and vehicles with original water circulation system. Air heater only heats air for cabin space without engine preheating function.

Q: Can this water heater work normally in extremely cold winter?

A: Its allowable working ambient temperature ranges from -40℃ to 80℃. When using low temperature resistant -35# diesel, it keeps stable heating performance in frigid zones. Please select suitable diesel according to local climate.

Q: Will this heater drain my vehicle battery quickly?

A: Thanks to optimized inverter control. Compared with traditional heaters, it keeps reasonable power consumption. It is suggested to keep battery in good condition for long time continuous running.

Factory Strength

Product Review

M***

We test this unit under -25℃ cold condition. Stable heating output, supports -35# diesel, fits our local engineering trucks well. Complete safety protection gives us confidence for bulk sales. Satisfied with sample performance and will arrange further bulk order.

R***

This 5KW diesel water heater meets our modification demands perfectly. The frequencysaving function really reduces diesel consumption. The noise level is surprisingly low, our clients can sleep well overnight. We have ordered several units for our RV conversion projects.

Frequently asked questions

Q: Is this parking air conditioner suitable for all types of trucks and vehicles?

A: Our parking air conditioning systems fit most heavy duty trucks, cargo vans, motorhomes, RVs and certain construction vehicles. Before purchase, please verify installation dimensions and confirm sufficient mounting space on your vehicle.

Q: Do I need to drill holes on my vehicle for installation?

A: Extra drilling is usually unnecessary if your vehicle has a factory built sunroof or pre reserved air conditioner opening. For vehicles without reserved positions, limited drilling work may be required. Complete installation guides and diagrams are supplied with every unit.

Q: How long can the parking air conditioner run purely on battery power?

A: Continuous runtime depends heavily on battery capacity, ambient temperature and actual cooling load. As a general reference, a 200Ah battery can support around 6-8 hours of operation under regular working conditions.

Q: Are your air conditioning units pre charged with refrigerant?

A: Yes. All our parking air conditioners come pre charged with eco friendly R134a refrigerant and are fully factory tested. No extra refrigerant charging is needed before first time use.

Q: What cooling performance can I expect from your parking air conditioners?

A: Cooling output varies among different series. Our parking AC units work well for standard size vehicle cabins. Under proper conditions, they can bring noticeable cabin temperature drop within a short period. Please refer to corresponding product specifications for exact BTU and wattage data.

Q: Can this air conditioner work with the vehicle engine turned off?

A: Yes. These are electric driven parking air conditioners made for engine off operation. They help cut fuel consumption and reduce engine wear during parking rest periods.

Q: What is your warranty policy, and are spare parts available?

A: We provide a 12 month warranty for main units. A full range of spare parts including compressors, fans and control boards can be supplied to support long term after sales maintenance.

Q: How loud will the air conditioner be during operation?

A: Noise level differs across product lines. Under normal operating conditions, most of our units run at ≤45dB, delivering quiet performance suitable for overnight rest inside the cabin.

Q: Can I complete the installation by myself?

A: Our parking air conditioners are engineered for user friendly installation. Basic hand tools are sufficient for assembly. We provide step by step installation videos and technical support. Many end users finish self installation within 2-3 hours.

Q: Can I start using the unit right after installation finishes?

A: Absolutely. Each unit is pre charged with refrigerant and strictly inspected before shipment. Once installation and power connection are completed, the system is ready for operation without additional setup.

Q: Do you offer OEM and custom order services?

A: OEM and ODM services are available. Options include custom branding, packaging, voltage adjustment, color and structural modifications, subject to minimum order quantity. Feel free to reach out to our sales team for further information.

Q: What is your typical production lead time?

A: Lead time varies based on order volume and stock status. For in stock items the shortest lead time can be 3 working days. The average production cycle is around 15 working days after order confirmation.

Q: Which shipping and trade terms do you support?

A: Applicable trade terms vary according to destination markets and order requirements. Please contact our sales team via email to discuss detailed shipping solutions for your project.

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