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5 Best Diesel Heaters For Motorhomes of 2025

Last Updated - 2025/09/17

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Happybuy

Happybuy Diesel Heater, 12V 8KW Diesel Air Heater, Bunk Heater with LCD Switch and Remote Control, Low Consumption for Car Trucks Motor-home Boat Bus RV

Happybuy

CA$319.23

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Main highlights
- Low Energy Consumption: Fuel consumption: 0.11-0.51 (L/H)/ 0.029-0.135 (Gal/H). The diesel heater features an oil pump that precisely controls the fuel inlet for 100% combustion. The efficient air heater takes around one gallon for one night to keep cozy during cold weather. The fuel 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!
- Efficient Diesel Air Heater: Heater power: 8 KW; Fuel type: Diesel; Rated voltage: 12V. Working Temperature:-104℉~+122℉/-40 °C~+50 °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.
- Diesel Vehicles Use: As a warming companion for any diesel vehicle, the bunk heater is used widely to heat the interior of cars, RVs, caravans, trucks, ships, etc.
- Clear LCD & Convenient Remote Control: Starting up the bunk heater is so easy. You can start up the bunk heater or adjust the temperature 46℉-95℉/8℃-35℃ by remote control or LCD panel. 98 ft/30 m long control distance and timing system allow you to preheat the engine and the cab in advance so you can enjoy the warmth when you open the vehicle's door in winter.
CA$319.23
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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

OBAKL

OBAKL Diesel Heater Aluminum Housing, 8KW Diesel Air Heater 12V Fast Heating, Diesel Parking Heater High Altitude for Trucks, Campers, RVs, and Boats

OBAKL

CA$299.99

More Details
Main highlights
- Remote Pre-heating: We provide two control modes: LCD monitor and LCD remote controller, which can easily realize the functions of 8°C -36°C (46°F -96.8°F, the monitor allows switching between Celsius and Fahrenheit) temperature adjustment and time on/off setting. The remote controller has a control range of 50M, so you can remotely start the diesel parking heater at home and enjoy the warmth as soon as you get on the car.
- Rapid Heating: Heater power: 8 KW; Rated Voltage: 12V; Fuel type: Diesel. This 8kw diesel heater adopts light diesel as fuel, which can be started and operated normally in the cold environment as low as -40°C. It draws in cold air and rapidly generates a large amount of warm air through its built-in heat exchanger, which can create a warm space of about 20 square meters in only 10 minutes. The built-in temperature sensor ensures overheat protection (>270°C/518°F), providing peace of mind for nighttime use.
- Plateau Version for High Altitude: Our plateau version bunk heater has a built-in high-sensitivity sensors, which can sense the altitude change and automatically adjust the air-fuel ratio to prevent issues like difficult ignition and incomplete combustion. Even in the altitude area of 18,045 FT/5,500 M, it still brings you surging hot air all the time.
- Ideal for Long-Distance Trip: Equipped with a high-precision fuel pump, the diesel bunk heater boasts a fuel consumption range of 0.16 to 0.62 L/h. Coupled with a spacious 15L (4-gallon) fuel tank, it ensures approximately 30 hours of continuous operation. With multiple silent designs, so you and your family can enjoy a comfortable and quiet travelling space. This diesel air heater is suitable for various vehicles, including RVs, trucks, and boats.
- All-Aluminum Housing: OBAKL applies for high-quality aluminum material to cover the housing of the diesel heater, providing superior corrosion resistance and oxidation resistance. It is extremely durable and will last as long as new with prolonged use in cold and humid environments. The fiery red color and flowing luster add a bright touch to your winter.
CA$299.99
3
Best Value

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Sunster

TB10PRO 8KW 12V 24V 110V TOOLBOX Portable Diesel Air Heater, Parking Bunk Heater with App Control, CO Alarm, Wireless Temperature Sensing Switch for Car RV truck Motor-Homes camper tent

Sunster

CA$259.00

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Main highlights
- UPGRADE：The included A2422 Wireless Temperature Sensing Switch features a CO ALARM ， that triggers an alarm and automatic shutdown if unsafe levels are detected.It also can control the heater switch, switch operating modes, adjust operating parameters, set functions, etc., and know the working status of the heater switch
- Smart APP Control ：Gain complete command with the smart app, which offers precise control over temperature, timers, power levels, altitude mode, constant temperature, and Ventiation mode settings. The Sunster diesel heater experience ultimate convenience and peace of mind.
- Indoor Climate Control: The diesel heater includes a 4 meter extension cable, allowing you to mount the control panel indoors for easier access and operation. By accurately sensing the actual indoor temperature, diesel air heater 12v can adjusts its operation mode and intelligently cycles on and off. This not only significantly improves heating efficiency but also eliminates the need for frequent outdoor adjustments, dramatically reducing fuel consumption for superior energy and cost savings.
- Energy Saving & Silent: 8KW diesel heater with a heating efficiency of ≥ 90% can continuously warm up 215 ft ²/20 m ² with approximately 1 gallon per night. ECU precise fuel control, fuel consumption is only 0.16-0.45L/h; Equipped with a 6 L/1.58gal fuel tank, it can provide continuous heating for up to 10 hours. Upgraded with an ultra quiet oil pump and muffler, the operating noise is ≤ 35 dB.
- Dual Power Supply Coverage: Sunster diesel heater is equipped with 2 wiring options (12/24V DC and 110-240V AC), which can automatically switch between vehicle and household power sources. Enjoy comfortable heating anytime in scenes such as cars, RVs, trucks, tractors, garages, cabins, outdoor camping
- Adaptive Plateau moded： Our air heater can be used at high altitudes 4,500 meters above sea level. It can automatically adjust the fuel output based on the altitude of the plateau and display the altitude
CA$259.00
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Sunster

Sunster 8KW Diesel Air Heater, 12V/24V All-on-one Diesel Heater with AC110-240V Power Adapter, Remote Control and LCD, Portable Parking Heater with Extendable Base for RV Truck Bus Motorhomes

Sunster

CA$165.00

More Details
Main highlights
- Wide Application: Car heater made of high-quality aluminum alloy, with fast heating, excellent heat dissipation, minimal carbon deposition, and long service life; It can be used as a defroster for car windows, as well as providing cabin or indoor heating for various spaces such as trucks, houses, garages, shops, tents cars, RVs, trucks
- Multiple Protection: The diesel heater is equipped with multiple protections against overheating ≥ 270 ℃, short circuit, overvoltage, reverse connection, etc. It also features intelligent constant temperature, timed and voice broadcast real-time warning. It is recommended to install it professionally and discharge exhaust gas externally, ensuring peace of mind for vehicle and boat camping day and night
- Low Fuel Consumption&Low Noise: Our portable diesel heater has a power of 8kw and a heating efficiency of ≥ 90%. The fuel consumption is only 0.11-0.48L/H, achieving rapid heating and continuous heating. Equipped with advanced mufflers and fuel pumps, the noise level during operation is ≤ 75dB, making it possible to enjoy warmth and tranquility all night long for both vehicles and camping
- Easy Installation&Efficient Heating: The 8 kW diesel heater is designed specifically for camping and outdoor exploration. The built-in combustion system of the heater maintains a stable output temperature of 46.4-96.8 ° F (8-36 ° C). Sandblasting aluminum heat exchangers can efficiently conduct heat, allowing RVs, boats, or engine rooms to quickly heat up and provide long-lasting comfort
- Dual Power Supply Coverage: Sunster diesel heater is equipped with 2 wiring options (12/24V DC and 110-240V AC), which can automatically switch between vehicle and household power sources. Enjoy comfortable heating anytime in scenes such as cars, RVs, trucks, tractors, garages, cabins, outdoor camping
- Comes with base bracket: Our heater Equipped with a 140mm base bracket，Easier installation and to prevent the common issue of exhaust gas blockages, ensuring uninterrupted warmth
CA$165.00
5

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

WAYSKA

WAYSKA Diesel Heater 12V, 15L Tank, Diesel Air Heater 5KW, Muffler, Diesel Parking Heater with LCD Thermostat Monitor & Remote Control for Trucks, Trailer, Boat and Motor-Home

WAYSKA

CA$259.99

More Details
Main highlights
- 【WIDE APPLICATION】-The Air diesel heater is not affected by the engine, and it is supplied for the following vehicles with corresponding power: all kinds of auto and trailer, boat, caravan and etc
- 【SPECIFICATIONS】-Heater power: 5KW; Fuel gasoline: Diesel; Rated voltage: 12V; Fuel consumption: 0.2-0.5; Working temperature of the heater: -40℃~+50℃; Working temperature of the oil pump: -40℃~+40℃
- 【PLATEAU VERSION THERMOSTAT】-The thermostat of the parking heater has the function of the plateau version, which can be used in areas above 5500 altitude, stable and reliable
- 【MUTE & LOW NOISE】-The 12v 5kw diesel heater can effectively reduce noise through blower speed control, silent fan, silent oil pump, and a muffler. The silent fan sleeps peacefully, and the metering oil pump adopts an improved low-frequency pulse
- 【FAST HEATING & LOW EMISSIONS】-Volatile technology, the ceramic spark plug heats the fuel to evaporate into a gas, quickly ignites, and fully burns. Environmentally friendly air diesel heater, low emission, low fuel, and power consumption, suitable for long running time
CA$259.99

5 Best Diesel Heaters For Motorhomes of 2025

Happybuy Diesel Heater, 12V 8KW Diesel Air Heater, Bunk Heater with LCD Switch and Remote Control, Low Consumption for Car Trucks Motor-home Boat Bus RV

OBAKL Diesel Heater Aluminum Housing, 8KW Diesel Air Heater 12V Fast Heating, Diesel Parking Heater High Altitude for Trucks, Campers, RVs, and Boats

TB10PRO 8KW 12V 24V 110V TOOLBOX Portable Diesel Air Heater, Parking Bunk Heater with App Control, CO Alarm, Wireless Temperature Sensing Switch for Car RV truck Motor-Homes camper tent

Sunster 8KW Diesel Air Heater, 12V/24V All-on-one Diesel Heater with AC110-240V Power Adapter, Remote Control and LCD, Portable Parking Heater with Extendable Base for RV Truck Bus Motorhomes

WAYSKA Diesel Heater 12V, 15L Tank, Diesel Air Heater 5KW, Muffler, Diesel Parking Heater with LCD Thermostat Monitor & Remote Control for Trucks, Trailer, Boat and Motor-Home

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