Independent reviews for Australians. We may earn a commission from partner links. Advertiser Disclosure
Buying Guideclimate control appliances

Air Conditioners for Caravans: What to Check Before You Buy

How to choose an air conditioner for a caravan: rooftop units, evaporative coolers, power draw, weight, and your consumer rights if the unit fails.

Researched and edited by the PouchMe team Updated 10 November 2026 Every fact linked to its source
The short answer

An air conditioner for a caravan suits anyone who wants to stay cool at a campsite or on the road. The main things to decide are the power you can supply and the climate you travel in. One Australian retailer lists a rooftop unit sold for caravans, campervans and RVs. Direct evaporative coolers work best in dry country, so they are a poor fit if you mostly camp somewhere humid. Indirect and two-stage designs are covered below.[1],[2]

How to choose an air conditioner for a caravan

Start with where you camp and what power you will have. Then check each factor below against your own trips.

  • Rooftop units. These mount on the roof. One Australian caravan retailer lists a 2.2kW rooftop unit, sold for RVs, caravans and campervans, that runs on 220 to 240V.[1]
  • Power draw. Look for the amp rating, not just the cooling output. The same retailer lists that unit at 6A for cooling and 4.8A for heating (1kW). Compare these figures with what your powered site or generator can supply while other appliances are running.[1]
  • Start-up surge. A compressor pulls more current for a moment as it starts. That unit lists a start-up current under 6A. It also has a soft start function, which eases the motor into running. The retailer says this helps it start reliably on campsites with low fuse protection.[1]
  • Weight and roof fit. A rooftop unit adds weight high on the van. That unit is listed at 34kg. Check any unit's weight against the roof and towing limits in your caravan maker's documents before you buy.[1]
  • Climate and evaporative coolers. A direct evaporative cooler passes air over wet pads. The air leaving the pads approaches the wet-bulb temperature of the outside air, which is the lowest temperature this method can reach. Direct units are more effective in dry climates.[2]
  • Humid or hot days. Even a modern direct unit may not give comfortable cooling if the outside air is hot and already close to saturated with moisture.[2]
  • Indirect and two-stage designs. Indirect evaporative units are described as effective in regions with moderate to high humidity. Two-stage systems reach comfort conditions in most of Australia, except the humid tropical regions.[2]
  • Air volume. Direct evaporative units produce warmer, more humid air than refrigerated air conditioners, so they need considerably more air flow to give the same cooling effect.[2]
  • Water. Portable evaporative units use a small pump to keep the cooling pads wet. You refill the internal water tank by hand, and the sump water needs to be dumped regularly.[2]
  • Energy Rating Label. In stores the label is mandatory on non-ducted household air conditioners. It is not clear that it applies to caravan rooftop units, so check whether a unit shows one. Where you see one, the star rating compares a product's energy use with similar products.[3]

Your rights if a unit fails. Under the Australian Consumer Law, goods must be safe, durable and free from defects. The ACCC says what counts as durable depends on the type of product, the price and how it is likely to be used. For a minor problem the business must repair the product for free. For a major problem, including an unsafe product, you can choose a refund or a replacement of the same type of product. Consumer guarantees can still apply after a warranty has expired. Check the current rules with the ACCC or your state fair trading office.[4],[5],[6]

Manufacturers must also take reasonable steps to provide spare parts and repair facilities for a reasonable time after purchase.[4]

Common questions

Do portable evaporative coolers actually work?

They can, in the right conditions. A direct evaporative cooler cannot cool air below the wet-bulb temperature of the outside air. Cooling can feel weak when the outside air is hot and humid. Direct units are more effective in dry climates, while indirect and two-stage designs suit more humid conditions.[2]

Do portable ACs need water?

Portable evaporative units do. A pump keeps the cooling pads wet, and you fill the internal water tank by hand. The sump water also needs to be dumped regularly.[2]

Does aircon use a lot of electricity?

It depends on the unit. Check the amp rating and compare it with the power your site or generator can supply. One rooftop caravan unit is listed at 6A for cooling, with a start-up current under 6A.[1]

Sources

  1. [1]Dometic FreshJet RV Air Conditioner 4 Series Essential + ADB (checked 2026-11-10)
  2. [2]Technical Background Research on Evaporative Air ... (checked 2026-11-10)
  3. [3]Understand the Energy Rating Label (checked 2026-11-10)
  4. [4]Consumer guarantees – information for businesses (checked 2026-11-10)
  5. [5]Broken but out of warranty? Your consumer guarantee rights may still apply (checked 2026-11-10)
  6. [6]Repair, replace, refund, cancel (checked 2026-11-10)

How this guide was made

Drafted with AI assistance from the sources listed, then fact-checked and edited by the PouchMe team. PouchMe researches products from published information; we have not tested them ourselves.

How we research

Related guides

Air Conditioners Buying Guide: Portable, Split and Evaporative