There’s nothing quite like a scorching Aussie summer to teach you one thing: air conditioning in your caravan isn’t a luxury — it’s survival. Whether you’re battling flies in the Outback or sweating it out at a packed caravan park in Queensland, a good A/C unit is worth its weight in gold.
Let’s break down the world of caravan and RV air conditioning, so you can hit the road cool, calm, and collected.
Why Staying Cool on the Road Really Matters
Heat stress is real. Especially when you’re living in a tin can on wheels.
When the temperature soars, your caravan can turn into an oven. A good air conditioner keeps you cool, helps you sleep better, protects your electronics and food, and frankly, stops you from losing your mind after a long day’s drive.
And if you’ve got pets or kids? It’s non-negotiable.
Types of Caravan Air Conditioners
Not all caravan A/C units are created equal. Let’s look at the main types.
Rooftop Air Conditioners
This is the most common style.
It sits flush on your caravan’s roof, saving space inside. These units are compact, efficient, and built to handle Aussie heat. They blow air through ducts or straight into your living area, depending on the model.
They’re ideal for medium to large caravans — provided your roof is strong enough.
Under-Bunk or Under-Bench Air Conditioners
If your roof is already packed with solar panels or not strong enough, this is your go-to.
Under-bench models sit inside your van, usually under a seat or bed. They’re quiet and efficient, but they do take up valuable storage space.
Air is ducted throughout the van, offering even cooling. These units are great for pop-tops or vans with limited roof space.
Portable Caravan Air Conditioners
Not ideal, but better than sweating it out.
Portable units can be moved around inside the van. Some need to vent out a window, while others use ice and water to cool the air.
They don’t have the grunt of rooftop or under-bench models, but they can be a budget-friendly backup.
Split Systems in Caravans
Not common, but some long-term travellers install split systems.
You’ll need a solid vehicle frame and lots of external room. It’s not DIY-friendly. But if you’re semi-permanently parked and want home-style cooling, it’s an option.
What to Look For in a Caravan Air Conditioner
Before you hand over your hard-earned dollars, know what actually matters.
Cooling Capacity (BTU / kW)
More isn’t always better — but too little won’t cut it.
Most caravan air cons range from 2.0kW to 3.5kW in cooling capacity. For a small van, 2.0–2.5kW is enough. Bigger vans or extreme climates might need 3.0kW or more.
Reverse Cycle vs Cooling-Only
Reverse cycle means your A/C can also heat. Handy for winter trips.
It costs more upfront, but saves space compared to separate heaters. Well worth it if you travel year-round.
Energy Efficiency and Power Draw
If you’re running on solar or a generator, efficiency is king.
Check the unit’s power draw in watts or amps. Some newer models (like inverter units) use much less power — ideal for off-grid travel.
Noise Levels
There’s nothing worse than trying to sleep while your A/C sounds like a jet engine.
Look for low-decibel ratings, especially for rooftop or under-bunk units. Some models have night or quiet modes. Your ears will thank you.
Remote Control and Thermostat Features
Convenience matters.
Choose a unit with a good remote and accurate thermostat. Timer settings, fan speed controls, and auto-restart after power loss are small features that make a big difference.
Air Distribution and Vent Placement
How the air is pushed around your van really impacts comfort.
Multi-directional vents or ducted systems spread cool air more evenly. Some rooftop units blow directly downward — good for compact spaces, but not always enough for larger vans.
Size and Weight
You’ll need to match the unit to your van’s roof load capacity and available space.
Weight can affect fuel economy, towing safety, and overall stability. Don’t just slap a giant A/C on a light pop-top and hope for the best.
Powering Your Caravan Air Conditioner
Not all campsites have power. Not all travellers like generators. Here’s what you need to know.
240V Mains Power
Easy. Reliable. Plug in and go.
If you’re staying at powered caravan parks, this is the most straightforward option. Just check your van’s wiring can handle the unit’s draw.
Running a Generator
Going off-grid? You’ll need a generator with enough wattage.
Most caravan A/C units need 2000 to 3000 watts to run. Some need more on startup (called surge or peak watts).
Use an inverter generator for clean, quiet power — and choose one rated at least 20% above your A/C’s requirements.
Battery and Inverter Setups
Can you run an A/C off batteries? Technically, yes — but it’s not easy.
Air conditioners are power-hungry. You’ll need a large lithium battery bank (usually 300Ah or more), a high-quality inverter (3000W+), and robust solar panels.
This setup costs serious money. But for hardcore off-griders, it’s possible.
Solar-Powered Air Conditioning
Solar alone won’t run an A/C. But solar + batteries can help keep your battery bank topped up.
Think of solar as the support crew — not the main engine.
Best Brands for Caravan Air Conditioning in Australia
You’ve got options — but not all are created equal. These are the top players.
Dometic
Reliable, well-known, and widely supported.
Models like the Harrier Plus or FreshJet are powerful, quiet, and efficient. Dometic is the gold standard in many caravans for a reason.
Air Command (by Gree)
Built for Aussie conditions.
Units like the Ibis 4 or Cormorant are powerful rooftop options with excellent cooling and low noise. A favourite among serious travellers.
Air Command Ibis Caravan Rooftop Air Conditioner
Truma
High-end German engineering.
Their Aventa Comfort rooftop series is quiet, compact, and energy-efficient. Pricey, but worth it if you want quiet comfort.
Houghton Belaire
Good bang-for-buck.
Models like the Houghton 3500 deliver decent cooling at a lower price. Maybe not as polished, but still dependable.
Installation Considerations
Not all vans are plug-and-play.
DIY vs Professional Install
Unless you’re confident with 240V wiring, leave it to the pros.
Improper installs can cause leaks, fire hazards, or void warranties. Pay a little extra now and save yourself a headache later.
Roof Strength and Sealing
Make sure your roof can handle the weight and stress.
Use proper sealing to avoid leaks. Even one dodgy gasket can ruin your trip.
Duct Placement and Airflow
Plan your vent layout. Bad airflow means uneven cooling and cranky passengers.
Weight Distribution
Every kilo matters in a caravan. Make sure your A/C doesn’t throw off your balance or exceed your ATM.
Maintenance and Longevity Tips
Treat your A/C right, and it’ll serve you well for years.
Clean Your Filters
Do it regularly. Dust and grime reduce airflow and efficiency.
Check Vents and Ducts
Look for blockages or leaks. These kill cooling performance.
Run It Occasionally in Storage
Helps keep seals lubricated and prevents issues.
Annual Service
Get it looked at before your big trip — not halfway across the Nullarbor.
Common Mistakes to Avoid
Learn from other travellers’ pain.
- Don’t undersize your unit.
- Don’t overload your generator.
- Don’t ignore noise ratings.
- Don’t block vents with furniture or bags.
- Don’t assume all units fit all vans.
Real-Life Scenarios: What Works Where
Off-Grid Bush Camping
- Inverter generator + efficient A/C (like Harrier Lite) is key.
Caravan Parks
- Go big if you like — you’ve got mains power.
Outback Touring
- Go for durability and cooling grunt. The Ibis 4 thrives here.
Snowy Mountain Winter
- Reverse cycle is a winner. Keeps you toasty without extra gear.
FAQs: Quickfire Answers
Can I run an A/C from solar only?
No — you need a battery bank and inverter.
What’s the quietest caravan air con?
Dometic Harrier Plus and Truma Aventa are very quiet.
What generator size do I need?
Minimum 2400W, ideally 3000W for startup load.
Can I install it myself?
Only if you’re licensed for 240V work. Otherwise, no.
Conclusion: Choose Smart, Travel Cool
A caravan A/C isn’t just about comfort — it’s about enjoying your trip.
Whether you’re chasing sunsets in the Top End or braving Victoria’s alpine mornings, the right air con makes life on the road better.
So match your setup to your travel style. Plan your power. And never underestimate the joy of a cool van on a hot day.
Because in Australia, comfort isn’t optional — it’s survival.
Choosing The Right Generator For Your Caravan Air Conditioner
