When you think of “air conditioning”, you probably imagine hot summer days, cranky children and that moment of stepping into a cool caravan after a long beach walk. But what if that same unit could also keep you warm when the nights turn chilly? That’s right — by choosing a dual-use air-con (one that both cools and heats), you’re investing in year-round comfort.
At UK Camping & Leisure we’ve seen this become a game-changer for caravans, motorhomes and campervans. Let’s explore why.
Why dual-use matters for camping & caravanning
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Extend your season
With a unit that only cools, you’re limited to warmer months. But if it also heats, you can cosy up in spring or autumn — or even winter if you’re bold.
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One installation, two functions
Rather than installing separate cooling and heating systems, you get both in one. Fewer installations, less complexity, lower maintenance.
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Comfort whenever you need it
On a hot summer day you’ll love the chill. On a damp, chilly night you’ll appreciate the warmth. No more layering up just to watch the same air-con sit idle.
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Better value
Because the system is the same one-unit-for-everything, you’re spreading cost over two functions. That’s a strong selling point when talking to customers.
What to look for in a dual-use unit
Here’s what to should check:
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Heating capacity: Not all “cooling” air-cons will heat effectively. Choose models that clearly list a heating output. For example, the Mestic RTA-3600i gives a heating capacity of 3400 W.
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Temperature range: Look for something like “adjustable temperature 18 °C to 30 °C” (as the RTA-3600i does).
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Inverter technology: Helps with both efficient cooling and heating, quieter operation, and more consistent climate control.
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Fitment suitability: For caravans and campers pay attention to roof-fit size, weight, vehicle length suitability etc (some Mestic units state suitability for vehicles up to 11 m).
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Brand credibility & specs: If you reference actual products in your blog, pick ones with full specs and verified dual-mode operation — that builds trust.
Two Mestic Models Worth Knowing About
If you’re looking for a dual-use air conditioner that can keep your caravan or motorhome comfortable all year round, the Mestic rooftop range is a fantastic place to start. These compact, energy-efficient units offer both cooling and heating, giving you the flexibility to travel whatever the weather.
Mestic RTA-2500L Rooftop Air Conditioner
Perfect for medium-sized caravans and campervans, the RTA-2500L delivers reliable cooling on warm days and an effective heating function for when the temperature drops. It’s designed to cool, heat and ventilate, meaning you can maintain your ideal climate inside your vehicle no matter the season. The unit’s quiet performance and sleek roof-mounted design make it a great fit for year-round adventurers. View Here
Mestic RTA-2600 Rooftop Air Conditioner
Stepping up in performance, the RTA-2600 combines strong cooling capacity with a built-in heating mode, ideal for slightly larger caravans or motorhomes. Like the 2500L, it’s part of Mestic’s next-generation rooftop range that balances efficiency with comfort. With simple digital controls and consistent airflow, it’s an easy way to enjoy all-season comfort on your travels. View Here
Both of these models are available through UK Camping & Leisure, offering the perfect balance between performance and practicality — so you can stay cool in summer and warm through autumn, all from one unit.
Frequently Asked Questions
Can an air conditioner really heat my caravan?
Yes — if it’s a dual-use or reverse-cycle model. These units don’t just cool; they can also produce warm air by reversing the cooling process. The Mestic RTA range, for example, includes heating functionality designed to keep your caravan comfortable even in cooler months.
Are dual-use air conditioners expensive to run in heating mode?
Not at all. In fact, reverse-cycle heating is often more energy-efficient than traditional fan heaters because it transfers heat rather than generating it. You’ll notice steady warmth without large spikes in your electricity use — ideal for campsite hook-ups or powered touring pitches.
Can I use my air conditioner for winter camping?
Absolutely. Many caravan air conditioners, including the Mestic RTA-2500L and RTA-2600, are built for year-round use. As long as your caravan is reasonably insulated and you follow the manufacturer’s recommended temperature range, your air con will perform well in mild to moderate winter conditions.
Do I need a separate heater as a backup?
If you’re camping through frosty UK winters, it’s smart to have a small supplementary heater just in case. But for most year-round touring — spring, summer, and autumn — your dual-use air conditioner will comfortably handle both heating and cooling duties.
How do I know which size air conditioner I need?
Match the model to your caravan’s length and layout. The RTA-2500L is ideal for smaller and mid-size vehicles, while the RTA-2600 suits slightly larger setups. You can always contact the UK Camping & Leisure team for advice before you buy — we’re happy to help you find the perfect fit.
Do these units need specialist installation?
Rooftop models usually do, as they replace or fit into an existing roof vent. However, installation is straightforward for professionals and ensures the best performance. We can guide you to suitable installers or help you choose a compatible setup.
Can I run my air conditioner off-grid?
Some smaller or portable air cons can run from an inverter or generator, but most fixed rooftop models require mains power. If you plan to go off-grid often, consider pairing your system with a portable generator or solar setup — we stock compatible accessories to help you do just that.
How often should I clean or maintain the unit?
Check and clean your filters every few months, especially if you’ve been camping in dusty or coastal areas. Keeping the airflow clear helps your air conditioner work efficiently in both heating and cooling modes, and prolongs its lifespan.
Make your caravan stay comfortable every time — not just when it’s hot.
