The 6 Best Diesel Heaters for Camper Vans


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October 14, 2022

When you’re on the road, you want to stay warm. In a camper van, you want to stay comfortable at night and by the next morning. You don’t want to sleep in the cold or  freeze your hands off while trying to start a fire or cook your meals. But other than that, it can get pretty hot inside your van sometimes too!

So what do you need? Well, if you have a diesel van, then you need a heater. There are many different types of heaters out there that can be used in camper vans. We will go over some of them here so that you know which ones are best for use in your particular situation.

Best Diesel Heaters for Camper Vans


espar airtronic s2

The ESPAR AIRTRONIC S2 is a powerful and versatile steam generator that can be used for a wide range of applications. The unit is easy to use, and delivers high-quality steam.

The diesel heater is designed for use in both RVS and camper vans. It can be used for everything from cleaning carpets and upholstery to sanitizing bathrooms and kitchens. The unit features an easy-to-use digital controller with a large LCD, which makes it easy to set the desired temperature setting and time. 

The machine produces 7500 BTU heating power. This allows you to choose the right temperature depending on what you’re using it for. The unit features an automatic shut-off function that stops the machine when there is no water left in the tank or when you forget to turn off the device after use.

Eberspacher Espar Airtronic S2

eberspacher espar airtronic s2

With its proven performance, the Eberspacher Espar Airtronic S2 is one of the most reliable diesel heaters on the market. Its electronic control system ensures maximum efficiency, while a fail-safe thermostat ensures that the unit won’t overheat. The Eberspacher has been designed to be extremely easy to install in any type of vehicle thanks to its unique modular design. 

In addition, an optional electric starter kit is available for those who wish to have a remote starter installed. The heater also comes complete with an auto altitude adjuster which allows for faster heating when at higher altitudes or when driving up inclines

The Eberspacher Espar Airtronic S2 includes RV Muffler Silencer and Floor Mounting Plate that features an automatic altitude adjustment system that allows you to use this unit at any elevation without having to make any adjustments on your part.

Happybuy 2KW Diesel Heater

happybuy 2kw diesel heater

This diesel heater is a great choice for all types of vehicles, such as cars, trucks, boats, and even RVs. It has a compact design, making it easy to install in any vehicle. It comes with an adjustable thermostat, intelligent LCD control and an ON/OFF switch. The installation process is simple and requires no special tools or skills. You can install this diesel heater yourself in less than 10 minutes!

The Happybuy Diesel Air Heater will keep your car warm on those cold winter days. The temperature can be set to whatever you need by simply turning the dial on the back of the unit. This diesel heater fits into most standard cigarette lighter outlets and it is powered by any 12V cigarette lighter socket in your camper vehicle. It uses very little fuel so it won’t empty your wallet at the pump!

Webasto Air Top 2000 STC

webasto air top 2000 stc

Webasto Air Top 2000 STC is a popular diesel-fired portable air conditioning unit that provides high-performance cooling. The Webasto Air Top 2000 STC has been designed for use as a heating system in locations where a small space is required and can be installed in just minutes. This compact AC unit has been designed for easy installation and features a simple control system with standard floor mount plate. 

The Webasto Air Top can be fitted with an optional battery backup system for use in remote locations where there are no power supplies available. This kit includes all the necessary components to fit the unit into any camper, van, or lorry without any modifications required!

It’s compact, lightweight, and easy to use – just turn on the ignition and it’s ready to go! The Air Top 2000 STC diesel heater produces heat via the evaporation of diesel fuel, which is pumped through the burner head before being ignited. This produces an efficient and cost-effective unit that can be used in just about any situation.

MaXpeedingrod 5KW 12V Air Diesel Heater

maxpeedingrod 5kw 12v air diesel heater

MaXpeedingrods Air Diesel Heater is a powerful and versatile heater. It has a rugged design, which makes it perfect for outdoor use. The unit comes with a lot of features that make it attractive to buyers.

This diesel heater can be used for both indoor and outdoor applications. You can use it for different activities such as camping or hunting.

The fuel tank is made of stainless steel, which makes it durable and long-lasting. It has a built-in LCD panel and you are easily able to operate the heater for long hours without having to refuel it often. The tank is also quite easy to refill when empty thanks to its location (where it’s not in your way).

The heating element is made of high-quality aluminum alloy material which allows heat transfer quickly from the heating element through aluminum fins into the airflow direction, making sure efficient heat transfer happens quickly and safely with no risk of fire hazard even with any overloading condition happening on this unit.

Webasto Air Top EVO 40

webasto air top evo 40

The Webasto Air Top is a diesel-powered, single outlet water heater with a heating capacity of 4.0/5.5 kW of power for heating up your space really fast. The heater has been designed to provide a high-quality and reliable source of hot water for heating purposes. The unit incorporates an electronically controlled heat exchanger which ensures that the correct amount of fuel is used to maintain the desired temperature set point.

The unit has been designed with a simple-to-use control panel that allows the user to select from four preset temperatures as well as having manual override control available. This allows the user to select their preferred temperature without compromising on cost or fuel consumption. This heater can be used on both new vehicles and older ones and has been designed to operate on all types of diesel engines.

How Does a Diesel Heater Work?

A diesel heater is a device that heats a liquid, such as water or oil, by passing it over a heat source. The heat source is generally an electric coil or a hot plate, which heats the liquid to boiling point.

The boiling point of water is 100 degrees Celsius (212°F), so when you boil water in a kettle, you are essentially heating it to its boiling point. But if you want to boil water at room temperature (about 20°C), you will need a lot more energy (heat) than if the water was already hot.

To use less energy, the diesel heater uses a process called superheating. This means that the temperature of the liquid is raised above its normal boiling point without actually boiling it. In this way, less energy is needed to raise it to its boiling point, since no extra energy is needed for evaporation once it has reached this point.

What to Look for When Buying a Diesel Heater?

When it comes time to buy a camper van heater for your vehicle, there are a few things that you need to take into consideration first. The first thing you should consider is whether or not you want an electric or propane version. 

This will depend on your personal preference, but both have their benefits and drawbacks. For example, propane models tend to be cheaper but may require more maintenance over time than their electric counterparts. On the other hand, electric models tend to be more expensive upfront but require less upkeep over time than propane-powered versions do.

When buying a diesel heater, you should look for a few things:

Fuel Efficiency. Diesel heaters burn more fuel than propane or natural gas heaters. This means that you will pay more to run it and you will need to replace filters more often. The fuel efficiency rating of your heater will tell you how much fuel it uses per hour, so look for the highest number possible. You can also calculate your fuel efficiency by dividing the wattage by the maximum output in BTUs per hour.

Heat Output. The amount of heat that an appliance produces is measured in BTUs (British Thermal Units). The higher this number is, the warmer it will keep your room or vehicle. As with fuel efficiency ratings, choose the highest BTU output you can find for your needs.

Noise Level and Fan Speed Setting Adjustments: Some models have variable fan speeds so that you can adjust how loud they are when running at different settings. These models are quieter than those with only one-speed settings because they do not have to increase RPMs as much when increasing heat output levels. This makes them ideal for use inside homes or small spaces where noise levels matter more than heating power levels.

Where to Install a Diesel Heater in a Van?

The best place to install a diesel heater in a van is under the passenger seat. This will allow you to run the heater on a low setting without disturbing the driver of the vehicle. There are several other options for installing a diesel heater in a van, but this is by far the easiest and most convenient.

If you want to install a diesel heater under your seat, then you will have to find a way to route exhaust from the tailpipe through your vehicle. The easiest way to accomplish this is by using an exhaust pipe extension kit. These kits are available at most auto parts stores and they allow you to extend your tailpipe out from under your vehicle so that it can be connected with another tailpipe, or with an exhaust muffler if you have one installed on your vehicle already.

Final Thoughts

The best diesel heater for camper vans is one that can be easily mounted, heats up quickly and efficiently, and doesn’t too much noise.

The most important thing to remember is that you’re not going to want to use it while sleeping in your van or camper. This can be a real problem if you’re staying somewhere with a strict quiet policy such as an RV park or campground.

It’s also important to consider how much time you’ll be spending in your vehicle at night. If you’re going to be out all day and then driving back to your campsite at night, then you’ll probably want something fast-acting and efficient that can warm things up quickly without being too loud or expensive (or both).

Every product is hand selected by our editors. We may receive commissions on purchases from a link.

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