Travelling in cooler climates can bring lots of fun adventures, but it’s no fun if you don’t have a warm caravan to come home to at the end of the day. The good news is that caravan heaters are becoming more and more popular, which means there are more products on offer than ever before.
The question is, which caravan heater should you buy? Diesel or gas? Just a heater or a combined heater and hot water system? How much should you budget? And what features should you look out for? Find the answers in our caravan heater buyer’s guide.
Types Of Caravan Heaters
There are two main types of caravan heating options and these are gas and diesel. The difference between these types of caravan heating is more than just the fuel – it also affects the installation, efficiency, space required and, of course, the cost. When choosing between a gas heater and a diesel caravan heater, answer these questions first:
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What temperatures do you expect on your trip?
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How big is your vehicle?
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What’s the space for installation?
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Do you already have gas installed or a diesel fuel tank?
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What’s your budget (including installation)?
Gas Caravan Heater
Gas heaters are a popular choice for caravans, especially if you already have a gas cooktop on board—meaning you’re already carrying the fuel source. Installation can be relatively straightforward, as the heater can tap into your existing gas line. One of the standout benefits of a gas heater is how quietly it operates compared to diesel options, making it ideal for light sleepers. Models like the Truma Vario Eco Gas Heater even include a dedicated night mode for whisper-quiet performance, ensuring a warm and undisturbed sleep while you travel.
Buy A Gas Caravan Heater If:
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You already have lots of gas appliances. That way, most of the gas infrastructure is already there.
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You have a gas heater that needs replacing.
Don’t Buy A Gas Heater If:
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You don’t want the hassle of the gas regulatory requirements, or your caravan is not suited to the installation requirements. For example, the gas heater flue cannot be installed close to a window, door, or other gas appliance inlet or outlet, and so on.
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You are regularly travelling to places where the temperature drops under 2 degrees. This can lead to the butane part of the liquid gas mix not vaporising well, so the heater will only burn Propane and you won’t be able to heat your caravan.
Gas Caravan Heaters We Recommend:
The highest rated recreational gas heater on the market is the Truma Vario Eco Gas heater. Super compact and lightweight, it’s ready to deliver warmth to your RV in the matter of minutes from initial start-up, which is ignited by a 12-volt ignition. Select multiple functions to suit your personalised requirements. For ease, you can control the unit using the 12-volt LCD control panel. There’s also a fully automatic thermostat with controlled shut down.
Are you replacing the old Truma E2400? If so, the Truma Vario Eco Gas Heater is the model for you.
Browse more caravan gas heaters.
Diesel Caravan Heater
Diesel heaters are a reliable and efficient heating option for caravans and motorhomes, especially if your vehicle already runs on diesel—allowing you to pump fuel directly from the main tank. For caravans, a separate fuel tank can be installed, with options like the Diesel Heater Lockable Fuel Tank offering added convenience and security. One of the biggest advantages of diesel heaters is the flexible installation. Unlike gas systems, diesel heaters don’t require a professional certification, and they can be mounted through the floor rather than walls, giving you more freedom in choosing the perfect location. Many models, such as the Webasto 12V Diesel Heater, come with straightforward installation guides for confident DIYers. Diesel heaters are also impressively fuel-efficient—some, like the Eberspacher Airtronic AS3 D2L, use as little as 0.10 litres of diesel per hour, making them a cost-effective way to stay warm during colder months.
Buy A Diesel Caravan Heater If:
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You already have a diesel vehicle – the caravan heater gets the fuel directly from your vehicle’s tank. If you don’t have a diesel fuel tank, separate diesel tanks are available from the product accessories list on our site.
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You want a highly efficient option for heating. Diesel caravan heaters boast a very low rate of fuel consumption.
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You need a flexible installation. Diesel caravan heaters offer greater flexibility for installation, because you need an exhaust that goes through the floor of the vehicle, rather than a flue through the wall. This doesn’t require a qualified tradie.
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You want to install the heater yourself - again we reiterate you don't need a qualified gas fitter for diesel heaters.
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You want to pre-warm your caravan. There’s nothing better than arriving at camp and knowing your caravan is already warm! That’s possible with a diesel heater.
Don’t Buy A Diesel Heater If:
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You don't have a diesel vehicle and are not prepared to install an extra tank to store fuel.
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You already have a gas heater setup and aren't looking to remove your gas stove top and switch to an induction cooktop.
Diesel Caravan Heaters We Recommend:
We have a new diesel heater range to the market that we recommend: Belief. The Belief range of diesel air heaters are the best value for money that we could find on the market. They have a small 2kW, medium 2.2kW and large 4kW model, all with a full installation kit. We promote this brand due to the detailed installation guides and product manuals. This range is also backed by a company with great after sales support and diesel heater expertise!
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Another model we love is the Webasto 12V Diesel Heater. Available in 12V and 24V, the 2kW diesel fired Air Top heater operates quickly, powerfully and almost silently. It is highly economical in fuel and power consumption, while also dehumidifying for complete comfort.
Explore the full range of diesel caravan heaters or learn more about the differences between diesel and gas heaters in our detailed guide here.
Combined Heater & Hot Water System
If you’re looking to save space, money and installation time, a combined heater and hot water system could be just what you need. This device will heat up your caravan water supply, as well as keep your caravan toasty when you need.
Combi Heater & Hot Water Systems We Recommend:
We have a new diesel hot water system range by DieselHeat with the option to add a air heater kit from the list of accessories. Targeted towards caravans and boats these models are made from 316 stainless steel. With their compact designs, they're perfect for fitting into tight spaces. They are also pre-assembled and tested which makes installation easy!
Another diesel option is the Truma Combi D6. This is a simple and easy to use dual air/water heating system with low fuel consumption, lightweight design and generous 10-litre water tank. It’s one of the most efficient heating modules for your caravan on the market today.
Why Do I Need A Separate Air Conditioner & Heater?
Yes you can use a caravan air conditioner with the heating function, but they are predominantly designed to cool and so are less effective at heating vans compared to a heater. So a separate heater is typically a better option if you’re planning regular or long caravan trips.
First, a separate heater offers you a back-up heating solution in case your air conditioner breaks down. It’s also a good option if you won’t have a large or reliable mains power supply. Let’s say you’re heading off grid or are expecting weeks of bad weather that will restrict your solar and battery power.
Another reason to consider a separate heater is because an air conditioner is usually mounted high, which is not the ideal location for heating a caravan. Heat rises, so circulating hot air in your caravan can be a challenge.
Last but not least, reverse cycle air-con units lose efficiency and output power at lower temperatures. In fact, if you’re travelling through sub-zero alpine temperatures, this is a substantial drop. A caravan heater, on the other hand, is designed to deal with low temperatures.
Caravan Heater Accessories
For a diesel heater, that is not being plumbed into the vehicles main tank - a quality separate tank is required. Take a look at the Diesel Heat 10 Litre Black Wafer Fuel Tank because it is value for money and has an integrated fuel guage.
Top Caravan Heater Brands
There are lots of brands to choose from, including Truma, Eberspacher, Webasto, Belief and Autoterm. They all offer different innovative features at different price points, so it pays to do your research before you buy.
Truma is known for its brilliant combination of gas and electric caravan heater and hot water systems, which provide great flexibility on the road.
Eberspacher is the go-to brand for those brave enough to take on the alpine regions – their heaters can start heating from temperatures as cold as –46°C! The inclusion of an altitude sensor also optimises combustion to meet whatever altitude you are travelling in.
Autoterm is a top pick for safety and reliability. All Autoterm heaters are made to meet European UK standards, beause there are no current compliance requirements in Australia. There is also a global 2-year warranty and local support with access to a 24-hour help line.
Webasto heaters offer the perfect middle level solution. You get competitive pricing that doesn’t compromise on a good warranty – all units come with a 2-year local warranty supported by Webasto.
Belief is the best value for money proposition and comes with the best after sales service with its specialist backing. Our pick!
One thing that you might want to look for is a large service agent network and good warranty. For a diesel heater, look to Belief, and for a gas heater, you can’t go past Truma.
Choosing the right caravan heater comes down to your setup, travel style, and personal preferences. Whether you opt for the quiet efficiency of a gas heater or the flexible installation and fuel economy of a diesel model, both options offer reliable warmth for your adventures. Be sure to consider your fuel source, installation needs, and how you like to travel to find the perfect heater for your caravan. Ready to buy? Check out our caravan heaters now.
DISCLAIMER* Please note, this advice is general in nature and we strongly recommend consulting the product manual and where relevant, a professional installer.
