The best diesel and gas heaters for caravans

Should you be looking at diesel or gas heaters for your caravan? and what model should you choose? We've done the research for you!


June 28, 2024

A heater is often a necessity during the chillier winter months, but should you be looking at diesel or gas heaters for your caravan? and what model should you choose? Well, we went ahead and did the research for you.

You’re welcome!

When it comes to caravan heaters, there are three main options: diesel, electric or gas. We’ve already discussed their difference more in-depth in a previous article, so rather than regurgitate the information here, you can read all about it by clicking the big green button below.

Had a quick read? Great.  Now that you have more of an idea of what type of heater will be best for you, let’s have a look at some different models.


Diesel caravan heaters


Webasto 12V single outlet diesel heater

diesel heaters for caravans

BEST FOR: Those with a smaller RV

  • Cost: $1,930
  • Size mm: 217 (L) x 120 (W) x 121 (H) 
  • Weight: 2.6kg
  • Fuel consumption: 0.12 – 0.24 l/h diesel

The Webasto 12V single outlet diesel heater with ducting and digital controller is available in both 12V and 24V. Highly economical, it dehumidifies the cab interior as well as warms it, ensuring a more comfortable experience. The compact design makes it easier to install than larger diesel heaters for caravans.

What’s included:

  • Webasto 12V diesel heater – single outlet
  • Floor mount heater bracket
  • 60mm ducting hose
  • 47 – 70mm duct clamp
  • Air outlet
  • Hose connector for the outlet
  • 600mm flat open vent
  • Digital controller 

What we like:

  • Works quickly
  • Quiet
  • Fuel economical (1-litre fuel every five to six hours)
  • Compact design
  • Digital Control

What we don’t like:

  • Now powerful enough for a larger caravan

Eberspacher Airtronic AS3 diesel heater with 10L diesel fuel tank

diesel heaters for caravans

BEST FOR: Those who want the latest in diesel heating tech

  • Cost: $2,509
  • Size mm: 310 (L) x 155 (W) x 122 (H)
  • Weight: 2.5kg
  • Fuel consumption: 0.10 – 0.27 l/h diesel

The Eberspacher Airtronic AS3 diesel heater comes in a bundle package that includes a 10L diesel fuel tank. It’s a third-generation diesel heater that’s easy to use, allowing for quiet operation, automatic altitude adjustment and flexible installation options.

What’s included:

  • Air Tronic D2L AS3 diesel heater
  • Fuel metering pump including pump holder
  • 6m of fuel line
  • Easystart Pro controller
  • Wiring harness
  • 2m stainless exhaust and silencer
  • 0.5m air intake tube
  • 2 x 60mm vent flange and flat vent cover
  • 2m 60mm ducting

What we like:

  • Easy to use
  • Fully electronic microprocessor control
  • Continuous monitoring
  • Low fuel and power consumption
  • Automatic altitude adjustment up to 5,500m
  • Flexible installation with 90° tilt possible
  • Diagnostics via EasyScan

What we don’t like:

  • Getting up there in price

Truma Combi D6 diesel heater/hot water system

diesel heaters for caravans

BEST FOR: Those who want to invest in an all-in-one unit

  • Cost: $3,695
  • Size mm: 450 (L) x 525 (W) x 300 (H) 
  • Weight: 16.2kg
  • Fuel consumption: 0.22 – 0.63 l/h diesel

The Truma Combi D6 diesel heater is a combi heater which means you can heat both the cabin and your water supply with the same unit. In summer, you can opt to just heat the water without using the space heater.

What’s included:

  • Truma Combi D6 diesel heater / hot water system kit
  • White cowl

What we like:

  • Four hot air outlets
  • Heats your water as well
  • Good for large caravans
  • Digital control panels

What we don’t like:

  • Heavy
  • Expensive
  • Exhaust/duct kit purchased separately

Gas caravan heaters


Important: Gas caravan heaters must be installed and certified by a qualified and licensed gas fitter!

Truma Vario Eco gas heating system

gas heaters for caravans

BEST FOR: Those seeking a highly-rated product

  • Cost: $2,699
  • Size mm: 437 (L) x 284 (W) x 124 (H) 
  • Weight: 5.5kg
  • Gas consumption: 90 g/h – 190 g/h

The Truma Vario Eco Gas heating system is the highest-rated recreational gas heater on the market. Caravanners can select multiple functions for different outputs, and it delivers warmth to your RV in a matter of minutes.

What’s included:

  • Truma Varioheat gas air heating system with CP Plus
  • Truma Varioheat basic install kit
  • Truma SCW2 swivel warm air outlet
  • Truma Varioheat cowl wall

What we like:

  • Works quickly
  • Night mode with low noise
  • Precise setting via LCD display
  • Boost mode for quick heating

What we don’t like:

  • Expensive
  • Must be installed by a licenced gas fitter

Truma Vario Eco Gas with E-Kit

gas heaters for caravans

BEST FOR: Those wanting the flexibility to use both gas and electricity

  • Cost: $3,494
  • Size mm: 437 (L) x 284 (W) x 124 (H)
  • Weight: 5.5kg
  • Gas consumption: 90 g/h – 190 g/h
  • E-Kit size: 260mm-L x 123mm-W x 190mm-H
  • E-Kit weight: 2.2kg

The addition of the E-Kit to the Truma Vario Eco Gas heating system provides another 1800 W of caravan heating and allows you to use both gas and electricity either independently or together.

What’s included:

  • Truma Varioheat gas air heating system 
  • Truma Varioheat basic install kit
  • Truma SCW2 swivel warm air outlet
  • Truma Varioheat cowl wall
  • Truma E-Kit 1800W 

What we like:

  • Works quickly
  • Night mode with low noise
  • Precise setting via LCD display
  • Boost mode for quick heating
  • Save your gas when required and use electricity
  • Heat the vehicle faster with the E-Kit

What we don’t like:

  • Expensive
  • Must be installed by a licenced gas fitter

Companion Aeroheat ducted rechargeable gas heater

gas heaters for caravans

BEST FOR: Those wanting the lowest-cost solution

  • Cost: $569
  • Size mm: 442 (L) x 163 (W) x 380 (H)
  • Weight: 8.5kg
  • Gas consumption: 43.7g/h

The Companion Aeroheat portable heater is a portable outdoor heater that runs on both gas and/or a rechargeable lithium battery. It’s designed for heating your caravan, camper trailer or tent as a portable solution.

The bonus of the Companion heater is that it’s Bluetooth compatible. Instead of facing the cold outside to turn the heater off, you can control the unit via an app on your mobile device from your comfortable bed.

What’s included:

  • Companion Aeroheat unit
  • Duct and quick release fitting
  • 12V charging lead

What we like:

  • Affordable
  • Instant warm air
  • Can run directly from gas cartridge or cylinder
  • Runs up to 4.5 hours on lithium battery charge
  • Digital display
  • Bluetooth control via app
  • Multispeed fan

What we don’t like:

  • Not designed to be installed in your caravan and therefore a gap must be created to push the duct through. This gap needs to be filled somehow when not in use.

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Jessica Palmer
Jessica Palmer

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  1. Unfortunately diesel heaters can be quite noisy for people like me who travel with a canvas-topped camper trailer. These heaters may be quiet for caravan users but they can produce noise at high enough levels to keep people awake at night.