Find the right caravan air conditioner for your van, whether you are replacing a rooftop unit, planning an under-bunk install, comparing cooling capacity or matching Dometic, AirCommand, Truma, Webasto or Furrion parts.
Shop Air ConditionersChoose rooftop or under-bunk units for new installs and replacements. For an existing unit, use the brand, model label or diagrams to find matching spares.
If you are new to caravan air conditioners, start with one simple question: where can the air conditioner actually fit on your van? From there, it is much easier to choose between a rooftop unit, an under-bunk unit, or parts for the air conditioner already fitted.
A rooftop air conditioner is the normal choice when the roof opening, roof thickness, roof strength and inside ceiling space all suit the unit. It saves cupboard space and is often the cleanest replacement when an older rooftop air conditioner is already fitted.
An under-bunk air conditioner can be better when roof space is tight, extra roof height is a problem, or you want to keep the roof clear for solar panels, hatches or racks. It needs cabinet or under-bed space, ducting, outlets, drainage and service access. Read the under-bunk air conditioner guide if this layout might suit your van.
For a rooftop unit, measure the roof opening and check the roof thickness, roof strength, total van height, nearby solar panels, vents and the inside air distribution box. Many units suit a 360 x 360mm or 400 x 400mm opening, but those other checks can still decide what will fit. Use the air conditioner selection guide for the longer explanation.
Power is the other early check. Most caravan air conditioners are 240V appliances, so compare running current, start-up current, generator or inverter capacity, and whether soft-start or inverter compressor features matter for the way you travel. The rooftop comparison and under-bunk comparison are useful once you know the style that fits.
A smaller caravan may not need the largest air conditioner, while a longer van, poor insulation, canvas-heavy layout or hot-climate touring can need more cooling capacity. Also check reverse-cycle heating if you want the air conditioner to help in cooler weather. For Dometic rooftop options, the FreshJet FJZ buyer's guide explains the Essential, Lite, Pro and Plus choices.
If you are replacing an older Ibis, Harrier, Heron, Coleman, Dometic, AirCommand, Truma or Webasto unit, write down the exact model before ordering. Then measure the roof opening, old shroud size, total height, bolt position and inside ceiling assembly. A new unit may still fit, but the plenum, gasket, wiring and trim can change. The Ibis 3 installation guide shows the sort of checks involved in a rooftop install.
For repairs, start with the label on the air conditioner, then use Dometic air conditioner parts, AirCommand parts, Truma air conditioner parts or air conditioner diagrams. Remotes, shrouds, filters, PCBs, sensors, gaskets and ceiling assemblies can look similar but suit different model generations.
Use these paths to narrow the choice: rooftop unit, under-bunk cooling, power requirements, replacement fit or model-specific spare parts.
Rooftop and under-bunk caravan air conditioners solve different install problems. If you are repairing an existing unit, the model and generation matter more than appearance.
| Air conditioner choice | Best for | Power and model checks | Check carefully |
|---|---|---|---|
| Rooftop air conditioner | Most caravans and RVs where the roof can carry the unit and the existing cut-out or opening can be matched. | Usually 240V mains/generator/inverter support depending on setup; check start-up current and soft-start/inverter behaviour. | Roof opening, roof thickness, height, weight, seal/gasket, ADB/plenum and solar panel clearance. |
| Under-bunk air conditioner | Vans where roof space is tight, roof height matters, or ducted airflow from a storage area makes more sense. | Usually 240V reverse-cycle units, with duct kits and outlet layout doing more of the work. | Cabinet space, duct length, outlet placement, drain path, service access and airflow restrictions. |
| Parts, diagrams and remotes | Fixing older AirCommand, Dometic, Truma, Webasto, Coleman and model-specific AC issues. | Part choice depends on model, generation, ADB/plenum and serial/version details. | Remotes, shrouds, PCBs, filters, sensors and gaskets can look similar but suit different model families. |
Before comparing caravan air conditioner prices, confirm the opening, roof thickness, available roof space, van size, power supply and exact model when ordering parts.
Air conditioner parts are highly model-specific. The same-looking remote, shroud, filter, PCB, gasket or sensor may suit only one generation.
| Brand or model | Use for | Check carefully | Best next step |
|---|---|---|---|
| Dometic FreshJet / Ibis / Harrier | Current rooftop units, FreshJet replacements, Ibis 4 and Harrier parts, remotes, shrouds, filters and diagrams. | FreshJet, Ibis and Harrier parts overlap in places but are not universally interchangeable. | Start with Dometic parts and diagrams. |
| AirCommand Ibis / Heron / Sparrow / Cormorant | Legacy AirCommand parts, Heron floor-mounted diagrams, Ibis remotes, boards, filters and shrouds. | Ibis MK1/MK2/MK3 and Heron 2.2/Q parts differ. Confirm whether you need a complete replacement, remote, board, filter or shroud. | Start with AirCommand parts and diagrams. |
| Truma Aventa / Saphir | Truma roof and under-bunk air conditioner parts, filters, remotes, sensors and installation accessories. | Aventa and Saphir paths differ; check roof vs under-bunk before ordering. | Start with Truma AC categories and manuals. |
| Under-bunk AC | Freucamp, iHider, Cool-J, Truma Saphir and ducted under-bunk installs. | Duct layout, outlet placement, service access and cabinet airflow determine whether the unit will work well. | Compare under-bunk AC options. |
| Webasto / Furrion / Coleman | Secondary rooftop options, manuals, diagrams and model-specific repair paths. | Stock and model support varies. Use the exact manual, diagram or model category before choosing repair parts. | Start with manuals and diagrams. |
If you already have a caravan air conditioner, start with the brand, model, generation and ADB/plenum details. These guides, diagrams and manuals help confirm what fits.
Helpful when you are choosing between rooftop and under-bunk AC, replacing an old unit, or checking model-specific parts.
Go straight to complete units, rooftop options, under-bunk options, brand parts or diagrams.
Choose a rooftop unit when roof space, roof strength and cut-out size suit the install. Choose under-bunk when roof space is limited, roof height matters, or a ducted layout works better for the van.
Match cooling capacity to van size, insulation, climate and usage. Also check roof opening, power supply, start-up current and whether reverse-cycle heating matters.
Often yes, but measure the opening, roof thickness, bolt pattern, ADB/plenum, seal, shroud clearance and total unit height. Older Ibis, Harrier, Heron and Coleman units may need model-specific checks.
Use the exact brand, model and diagram before ordering. Remotes, shrouds, filters, PCBs, sensors, gaskets and louvers can be generation-specific.
Most caravan air conditioners are designed around 240V power. Some setups can use large inverter/battery systems, but you must check start-up current, running current and charging capacity carefully.
Do not assume they are interchangeable. Some parts and accessories overlap, but many are specific to the exact model family and generation.
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