Every caravanner understands the importance of a good heater.  Yes, the days are hot but the nights can become very cool. A heater can prevent chills and dampness from occurring inside the van. Diesel and gas are the two most popular styles of heaters.    The burning question is which one is better for caravans?    In this guide, we’ll break them both down in detail. We’ll compare specifications, fuel price points and various other influential factors. Hopefully, this will help you find the best choice for your caravan.    Let’s get started!

Gas vs Diesel – Pros and Cons

The best way to understand gas and diesel heaters is to compare their advantages and disadvantages. Take a look now!

Noise

Gas heaters are generally quieter than diesel heaters.    This is a definite advantage when users activate them in the evening. After all, it’s difficult to relax with loud and constant background noise.   Diesel heaters are generally noisier than the alternative, and this is largely due to the operation of the fuel pump. It’s also a given that cheaper models will be louder so bear this in mind. However, the sound reduces after about 15 minutes and becomes tolerable.    That being said, gas heaters are a winner in this category. 

Cost

There’s no denying that diesel heaters are much more wallet-friendly than gas heaters.    Expect to pay upwards of $2000 for a decent Truma unit. Meanwhile, it’s possible to pick up a diesel unit for a tenth of the price.   Another potential issue with gas heaters is the cost of installation. According to federal law, a qualified professional must install all gas appliances. But this isn’t an issue with diesel heaters.    On the other hand, there’s usually less risk when buying a gas heater because people go for the same respected brands. If you’re set on buying a diesel product a cheap Chinese model may tempt you.    These are typically noisier and may cause other issues inside the caravan. If you want reliability then it will cost a lot more. Remember that you get what you pay for. Your cheap heater may break and require a replacement without a warranty.    In conclusion, diesel heaters are much cheaper than gas heaters. But the latter can be economical in the long term. Value for money depends on the frequency of use and the owner’s lifestyle. 

Fuel Accessibility

Diesel is much easier to find in remote locations than LPG gas.    It’s also more likely to be available at a conventional price. Dubious dealerships know that caravan and RV owners may require LPG gas so they put the prices up. If you’re in a situation where you’re stuck, you’ll pay the price.    However, that’s not a problem with diesel because it’s more widely consumed.    This isn’t necessarily a major issue if you plan accordingly. Check the weather forecast and be mindful of the season before you travel. If you need to stock up, make sure you’ve got some extra gas ready to go.    When it comes to fuel consumption, diesel is more economical too. Once again, the difference may be negligible if you’re not running it all of the time. This won’t be a key factor unless you are running short!

12-Volt Power

Both styles of heater require a 12V connection.   Diesel was the winner when it came to consuming basic fuel. But gas uses less electricity than its rival because there are fewer components. It only runs a fan, unlike diesel heaters, which need a fuel pump.   Neither is likely to be drastically expensive but gas is cheaper and in remote locations with little power, it has the slight edge. 

Health & Safety

As we’ve already mentioned, an expert must install gas heaters.    Your dealership will likely organize this for you. If not you must pay somebody else to do the job.    After installation, there’s very little risk with either gas or diesel heaters. A carbon monoxide alarm is a sensible purchase regardless of the style you choose. Some people are wary of gas heaters but a well-maintained unit should be safe.    Gas is also a cleaner fuel to deal with than diesel. The latter may spill and produce a noxious stench. While gas can leak, the risk is much lower. 

Impact on Surroundings

Fellow campers may take issue with diesel heater users because of the initial noise.    Remember this is a bigger problem for cheaper heaters and a reason why some campsites have a blanket ban. Be mindful of your neighbours because they could complain if it’s too loud.    The external noise will probably be louder than the sound inside. 

Fuel Tank

Anybody with a gas-powered caravan will require an additional diesel fuel tank to operate their diesel heater.    This is a potential additional cost and inconvenience that a gas heater won’t create. Some people prefer gas heaters because they share the same fuel.    But remember, it will also burn through fuel quicker and can potentially leave you without a working fridge or other appliances if you’re not careful. 

Humidity/Condensation

Diesel heaters create dry heat so there’s no additional humidity or condensation inside the caravan.    However, the opposite is true of gas heaters. Prepare to deal with fogged-up windows! It’s probably not a dealbreaker but it’s good to know. 

Final Thoughts

Both gas and diesel heaters have their merits.    In the end, it depends on the potential owner’s personal preferences. If you’re only planning on using it occasionally, then a diesel heater may be a better investment. They’re much cheaper and the noise won’t be such a big deal.    The upfront cost of a gas heater may dissuade some prospective buyers but they’re very reliable units.    However, if you plan on touring the Outback or going off the grid a diesel heater may be a better option. That’s because the fuel is more widely available than LPG gas.    If you have any questions about diesel or gas heaters, please leave a comment below!