Updated: 30 Aug 2025

10 Best portable diesel heater for caravans of 2025

Updated: 30 Aug 2025

#1

Best Choice

BOSWELL DIESEL AIR HEATER 5KW 12V ALUMINIUM SHELL Portable Camper Caravan White

9.8

Boswell

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【Precision Cast Aluminium Body Machine】Longer service time.

【Low-Noise and Low-Vibration】Pure copper motor assembly.

【Aluminium Housing】Makes the heater last longer and minimize damages during transport. Plastic heaters are also known to give a distinctive smell which the aluminium does not.
#2

Best Value

maXpeedingrods 12V 2KW Diesel Heater, Remote Control, LCD Display with Silencer, Heater for Car, RV, Trailer, Van, Caravan

9.7

maXpeedingrods

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Safety - The heater will automatically shut down when the aluminium body temperature exceeds 270 ℃

Energy Efficient - The interior heats up rapidly once the heater is in operation. Using an average of 0.14-0.35 liters of diesel and 36 watts of power per hour, which is ideal for long heating periods

Comfortable and Warm - The air heater is a sophisticated model that has an output ranging from 3,400 to 6,800 BTUs, capable of heating a small-to-medium size vehicle. In addition, the quiet operation ensures a restful night's sleep
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#3

PORIYA 12V 8KW Portable Diesel Heater Split-Top-Type Diesel Heater with LCD Display Low Fuel Consumption Silencer Thermostat Caravan Motorhome Trailer (Orange with Remote Control)

9.5

PORIYA

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Quiet and Durable Construction：Operating at a low noise level of 4000 RPM, it ensures a peaceful environment. Built with rugged metal and ABS construction, it can withstand extreme temperatures from - 40°C to +50°C (heater) and - 40°C to +40°C (oil pump), making it suitable for all - weather use.

Powerful and Efficient Heating：This 8KW PORIYA diesel heater offers instant and steady warmth. With ultra - low fuel consumption ranging from 0.11 - 0.51L/h, it provides long - lasting heating. It can cover an area of 215 - 269 ft²/20 - 25 m², making it suitable for cars, RVs, trucks, and even indoor spaces.

Convenient Remote Control and Monitoring：Control the heater's settings remotely up to 100m (without obstacle) using the included wireless remote. The intuitive LCD display allows for easy monitoring of temperatures and the heater's status. You can preheat your vehicle from outside, keep the interior warm, preheat the engine, and prevent window freezing.
#4

PORIYA 12V 8KW Portable Diesel Heater Split-Top-Type Diesel Heater with Remote Control and LCD Display Low Fuel Consumption Silencer Thermostat Caravan Motorhome Trailer (Grey with Bluetooth control)

9.4

PORIYA

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Powerful and Efficient Heating The PORIYA 8KW diesel heater is designed to quickly and effectively warm up your car, RV, bus, or indoor space. With its 8KW heating power, it rapidly generates a steady stream of warm air, eliminating the discomfort of freezing temperatures. The heater operates on a 12V power supply and has a fuel consumption rate of 0.16 - 0.62L/h, making it both powerful and fuel - efficient for long - term use.

Automatic Altitude Compensation This diesel air heater comes with automatic altitude compensation, allowing it to function optimally at altitudes of up to 18,045 feet/5,500 meters. It ensures a stable fuel supply and low - noise operation even in high - altitude areas, providing a warm and peaceful environment regardless of the terrain.

Advanced Control Options Enjoy enhanced convenience with the Bluetooth control feature. Simply download the app to preheat or adjust the heater from up to 98 ft/30 m away. Additionally, an included 32 ft/10 m remote control and an intuitive LCD display provide alternative ways to operate and monitor the heater's status. You can easily manage the temperature, ensuring a comfortable environment no matter where you are.
#5

Alston Diesel Air Heater 12V 8KW Tank Portable Heater Thermostat With Remote Control and LCD Display for Car Truck Boat RV Campers Caravan Motorhome

9.3

ALSTON

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Low Energy Consumption: Fuel consumption: 0.1-0.24 (L/H)/ 0.026 - 0.063 (Gal/H). The diesel heater features an oil pump that precisely controls the fuel inlet for 100% combustion. The efficient air heater takes less than one gallon for one night to keep cozy during cold weather. The oil pump vibration is low, effectively reducing the noise and letting you enjoy a quiet and warm space.

Feel Warmer in No Time: Feel warmth with every breath! The inhaled cool air is heated and becomes hotter via the aluminum combustion chamber. The diesel heater heats fast and increases the temperature of the car within 10 minutes; it can also pre-heat the engine and clear the window's frost in no time! Make your winter adventures hassle-free.

All-in-one Diesel Air Heater: This diesel heater, with a power output of 8 kW and operating at a voltage of 12V, is designed to function within a wide working temperature range from -40°C to +80°C. Don't let cold winters leave you frozen and stop you from traveling or camping in all four seasons. Get ready to stay warm with our diesel air heater.
#6

Manan Caravan Diesel Air Heater 5KW 12V,Remote Control &Lcd Monitor,Caravan Vent Duct Thermostat for Motorhome RV Boat Car Camper Tent Camping,Portable Air Heaters with Fuel Tank

9.1

Manan

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RAPID HEATING WITH QUIET OPERATION: Enjoy rapid warmth with minimal wait time thanks to the heater's efficient design. Its low-noise operation ensures a quiet and comfortable environment, perfect for maintaining peace and relaxation in your space.

POWERFUL 5KW HEATING: The Maman 12V/5KW portable diesel air heater delivers robust and efficient 5KW heating, making it ideal for keeping your vehicle, caravan, motorhome, or outdoor area comfortably warm, even in harsh weather conditions.

EFFICIENT LOW EMISSIONS AND FUEL CONSUMPTION: Designed for both performance and environmental responsibility, this diesel air heater operates with low emissions and consumes minimal fuel, providing a cost-effective and eco-friendly heating solution.
#7

Giantz Diesel Air Heater 12V 5KW LCD Remote Control for Car Indoor caravan 2025

9.0

GIANTZ

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WIDE APPLICATIONS:5KW diesel heater fits caravans, trucks, boats, machinery & more—ideal for camping, marine use & heavy-duty worksites (agriculture, construction).

LOW NOISE: With its low-noise operation, you can enjoy a peaceful environment while staying warm.

LARGE FUEL CAPACITY: The heater features a large 5L fuel tank, ensuring long-lasting heating without the need for frequent refills.
#8

PRIJESSE 5KW All in One Diesel Air Heater, 12V Fast Heating Parking Heater With Remote Control & LCD Display & Muffler Silencer for RV Trucks Bus Trailer Motorhome Tent Camper Van Boat (Black)

8.9

PRIJESSE

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Main highlights

When the Professional Diesel Air Heater working Make you feet and hands feel comfortable. you will No longer feel cold that driving in snowy day or cold day. LCD Thermostat Monitor allows you to control the working of this diesel air heater will be more convenient. In addition, it can defrost and defog the windshield

Through Silent fan, Silent oil pump,Suitable blower speed and Silencer to lower the noise. The metering oil pump uses improved low-frequency pulse.

5000W power ensures rapid heat generation, Let the indoor temperature reach a comfortable temperature in a short time.
#9

PRIJESSE All-inOne Diesel Air Heater, 12V 5KW Parking Heater Diesel Night Heater with Silencer LCD Monitor Thermostat For Car Trailer Truck Boat Caravan Motor-home Campervans

8.8

PRIJESSE

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Warm up fast: Diesel air heater Can preheat engine coolant to prevent engine wear started at low temperature; protects your engine for an extended life, reduces maintenance intervals and saves money. a diesel air heater is going to provide more heat, more rapidly. Warms a small car in 8 minutesin 35 degree weather to 72 degrees. If you need supplemental heat in your car, this is the heater for you

Low noise: Effectively reduce noise through blower speed control, silent fan, silent oil pump. The silent fan sleeps peacefully, and the metering oil pump adopts an improved low frequency pulse with low vibration.complete combustion, silent, uniform and stable wind speed

Heater power: 5KW,Fuel gasoline: diesel,Car air conditioning type: Heating,Rated voltage: 12V,Working temperature of the heater: -40℃~+50℃,Working temperature of the oil pump: -40℃~+40℃,Item Size: about 15.3" x 5.7" x 5.7" inch (As picture shows)(please confirm the car voltage then adjust)
#10

PRIJESSE 12V 5KW Diesel Air Heater Parking Heaters w/Silencer &LCD Switch Thermostat for RV Bus Truck Motorhome Boat Car Caravans Van (Red)

8.7

PRIJESSE

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Main highlights

【Warm up fast】Diesel air heater Can preheat engine coolant to prevent engine wear started at low temperature; protects your engine for an extended life, reduces maintenance intervals and saves money. a diesel air heater is going to provide more heat, more rapidly. Warms a small car in 8 minutesin 35 degree weather to 72 degrees. If you need supplemental heat in your car, this is the heater for you.

【Specification】Heater power: 5KW,Fuel gasoline: diesel,Car air conditioning type: Heating,Rated voltage: 12V,Working temperature of the heater: -40℃~+50℃,Working temperature of the oil pump: -40℃~+40℃,Item Size: about 15.3" x 5.7" x 5.7" inch (As picture shows)(please confirm the car voltage then adjust)

【Low noise】Effectively reduce noise through blower speed control, silent fan, silent oil pump. The silent fan sleeps peacefully, and the metering oil pump adopts an improved low frequency pulse with low vibration.complete combustion, silent, uniform and stable wind speed

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10 Best portable diesel heater for caravans of 2025

BOSWELL DIESEL AIR HEATER 5KW 12V ALUMINIUM SHELL Portable Camper Caravan White

9.8

Main highlights

maXpeedingrods 12V 2KW Diesel Heater, Remote Control, LCD Display with Silencer, Heater for Car, RV, Trailer, Van, Caravan

9.7

Main highlights

PORIYA 12V 8KW Portable Diesel Heater Split-Top-Type Diesel Heater with LCD Display Low Fuel Consumption Silencer Thermostat Caravan Motorhome Trailer (Orange with Remote Control)

9.5

Main highlights

PORIYA 12V 8KW Portable Diesel Heater Split-Top-Type Diesel Heater with Remote Control and LCD Display Low Fuel Consumption Silencer Thermostat Caravan Motorhome Trailer (Grey with Bluetooth control)

9.4

Main highlights

Alston Diesel Air Heater 12V 8KW Tank Portable Heater Thermostat With Remote Control and LCD Display for Car Truck Boat RV Campers Caravan Motorhome

9.3

Main highlights

Manan Caravan Diesel Air Heater 5KW 12V,Remote Control &Lcd Monitor,Caravan Vent Duct Thermostat for Motorhome RV Boat Car Camper Tent Camping,Portable Air Heaters with Fuel Tank

9.1

Main highlights

Giantz Diesel Air Heater 12V 5KW LCD Remote Control for Car Indoor caravan 2025

9.0

Main highlights

PRIJESSE 5KW All in One Diesel Air Heater, 12V Fast Heating Parking Heater With Remote Control & LCD Display & Muffler Silencer for RV Trucks Bus Trailer Motorhome Tent Camper Van Boat (Black)

8.9

Main highlights

PRIJESSE All-inOne Diesel Air Heater, 12V 5KW Parking Heater Diesel Night Heater with Silencer LCD Monitor Thermostat For Car Trailer Truck Boat Caravan Motor-home Campervans

8.8

Main highlights

PRIJESSE 12V 5KW Diesel Air Heater Parking Heaters w/Silencer &LCD Switch Thermostat for RV Bus Truck Motorhome Boat Car Caravans Van (Red)

8.7

Main highlights

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