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Best Selling Air Con
These are the cooling units UK caravanners and motorhomers buy most — ranked by actual sales over the last 12 months. If you're not sure where to start, this is the safest shortlist: real-world favourites that have proven themselves in British summers from Cornwall to the Scottish Highlands.
Why "best-selling" matters
Reviews can be faked and "editor's picks" are easy to write — but sales numbers don't lie. Every product on this page has been bought repeatedly by UK customers, which means it works as advertised, fits real caravans and motorhomes, and doesn't fall over after a season. You'll see a mix of:
- 12v units for off-grid touring (Mestic SPA series, portable 12v units)
- 230v rooftop units for sites with hookup (Truma Aventa, Dometic FreshJet)
- Combi heat-and-cool units for year-round comfort
- Portable air-cons for renters or those who can't drill the roof
Quick filter tips
Use the sidebar to narrow by power source (12v, 230v, dual), mounting type (rooftop, portable, split), or brand. If you need help comparing two specific models, our Truma vs Dometic comparison guide and the rest of our motorhome air-con blog have detailed buyer's advice.
All units ship from UK stock with same-day despatch on orders before 2pm. Got a question before you buy? Just message us.
These are the cooling units UK caravanners and motorhomers buy most — ranked by actual sales over the last 12 months.
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Truma Aventa Compact 2 Plus Air Conditioner - Black
TrumaDetails The 2nd generation of Aventa roof-mounted air conditioning systems ensures an extremely pleasant temperature and particularly quiet op...
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£1,921.99
Truma Aventa Compact 2 Plus Air Conditioner - White
TrumaThe 2nd generation of Aventa roof-mounted air conditioning systems ensures an extremely pleasant temperature and particularly quiet operation. T...
View full details
Original price
£1,921.99
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£1,921.99
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£1,921.99
£1,921.99
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£1,921.99
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£1,921.99
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About Best Selling Air Con
Split vs Rooftop Air Conditioning Units
Compare features to find the perfect AC solution for your vehicle
| Feature | Split System | Rooftop Unit |
|---|---|---|
| Best for | Caravans & motorhomes with internal wall space | Motorhomes & large campervans with roof load capacity |
| Noise while sleeping | Very quiet (compressor outside) | Medium – noise is outside, but above the bed |
| Cooling power | Efficient, great for long stays | High output, ideal for larger/open spaces |
| Interior space used | Requires an indoor unit | Zero interior space taken |
| Installation | More involved (indoor + outdoor) | Simple swap if roof already has an AC, or roof light |
| Weight impact | No roof weight | Adds roof load — check vehicle limit |
| Cost | Medium–High | Medium–High |
| Energy use | Very efficient | Medium |
| Maintenance | Easy indoor access | Needs roof access |
| Ideal trip type | Long stays / quiet nights / energy-saving | Road trips / hotter climates / large vehicle layouts |
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Read more →Air Conditioner FAQs
Can I run a caravan air conditioner on a campsite hook-up?
Yes, most caravan and motorhome air conditioners are designed to run on a standard 6A or 10A UK campsite hook-up. Compressor air-cons typically draw 4-8 amps in normal operation. If your unit is rated above 1500W (most rooftops sit around 850-1700W), check the site's amp limit before you arrive - some smaller sites only offer 6A, which can trip the breaker if you're also running a kettle or microwave.
What's the difference between a split unit and a rooftop air conditioner?
Split units have an outdoor compressor (mounted in a locker or rear bumper) connected by refrigerant lines to an indoor evaporator unit - this gives the quietest interior noise since the noisy part is outside the living space. Rooftop air conditioners are self-contained units mounted on the caravan roof, simpler to fit (often a like-for-like replacement of an existing rooflight) but the compressor noise is heard from above. Splits cool more efficiently for the wattage drawn; rooftops are quicker to install and cheaper.
How many BTU do I need for my caravan or motorhome?
As a guide: 5,000-7,000 BTU suits campervans and compact caravans up to 5m, 8,000-10,000 BTU covers most touring caravans and small motorhomes (5-7m), and 12,000+ BTU is for larger A-class motorhomes or full-time touring. Going bigger than needed wastes battery/hookup current and runs noisier. Insulation, sun exposure and roof colour also affect required output - dark-roofed caravans in direct sun need 20-30% more cooling capacity than average.
Can I install a caravan air conditioner myself?
Rooftop replacements (swapping an old air-con for a new one in the existing opening) are within reach of a competent DIYer with a weekend free and a second person to help lift. New roof installations require cutting a 360mm × 400mm or similar opening through the roof - we'd recommend a professional fitter unless you've cut motorhome roofs before. Split-system installs need refrigerant pipework that should always be done by an F-Gas certified engineer. Budget £200-£450 for professional fitting depending on complexity.
How noisy are caravan air conditioners at night?
Modern caravan air conditioners run between 42-55 dB at the indoor vent on quiet mode - that's quieter than a normal conversation, comparable to a fridge. Premium brands like Truma Aventa Comfort and Dometic FreshJet 2200 sit around 42-45 dB, while budget portable units can hit 55-60 dB. Split systems are typically the quietest (38-42 dB inside) because the noisy compressor is outside. If sleeping with the unit running matters, look for a "night mode" or "sleep mode" setting which lowers fan speed and noise further.
Will an air conditioner drain my leisure battery?
That depends on the unit and your battery setup. Pure 12v air conditioners (like the Indel B Plein-Aircon) draw 30-50 amps while running - a typical 100Ah lithium leisure battery would manage 2-3 hours before needing recharge. Standard 230v rooftop units only run from hookup or a generator/inverter and don't directly affect your leisure battery. If you tour off-grid frequently, a 12v unit paired with 200Ah+ lithium and 200W+ of solar is the realistic minimum for overnight cooling.
Can air conditioners be used as heaters too?
Many modern caravan air conditioners are reverse-cycle heat pumps, meaning they can heat as well as cool. Truma Aventa Comfort, Dometic Combi units and Kronings K2400 all offer this. Heat pumps are efficient down to about 0-5°C ambient temperature - below that, they struggle and a gas-fired heater (like Truma Combi 4 or Propex HS2000) is more reliable. For year-round touring, a combi unit (heating + cooling in one) usually works out cheaper than two separate systems.
How do I clean or replace my air-con filter?
Air-con filters should be cleaned every couple of trips and replaced every 12 months. Most rooftop units have a removable plastic grille covering a foam filter - pop the grille, lift out the filter, vacuum it or wash in warm soapy water, let it air-dry fully, then refit. Replacement filters cost £5-£20 depending on brand. A clogged filter is the most common cause of weak cooling output and musty smells - it's a 5-minute job that makes a huge difference. See our filter cleaning guide for step-by-step instructions.
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We stock leading camping, caravan and motorhome brands – chosen for real-world touring reliability. Browse by brand to match parts and accessories to your setup.
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Read FAQsTrusted by UK campers, caravan owners and van life travellers. Shop quality gear with clear product guidance, secure checkout and friendly support when you need it.
Learn moreFree mainland UK delivery on orders over £40. Fast dispatch on stocked items and transparent delivery options at checkout so you can plan with confidence.
Delivery infoWe stock leading camping, caravan and motorhome brands – chosen for real-world touring reliability. Browse by brand to match parts and accessories to your setup.
Shop by brandNot sure what you need? Explore our FAQs and guides for sizing, compatibility and setup advice across awnings, tents, accessories and touring essentials.
Read FAQs