All air conditioning units qualify for our mainland UK free delivery*
Shipping information
We aim to dispatch all orders placed before 1 PM on the same working day.
Standard delivery is 1–2 working days to most UK mainland addresses.
Free UK Mainland delivery on orders over £40
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Please note: larger items such as air conditioners may require an additional handling day during peak periods. Orders to locations outside mainland UK will incur shipping fees, applied at checkout.
Returns & warranty
We want you to be completely satisfied with your Mestic purchase.
If your item arrives damaged or you change your mind, you can return it within 40 days of delivery in its original packaging for a refund or exchange.
All Mestic products come with a manufacturer’s warranty (typically 2 years) covering defects in materials and workmanship.
For return requests or warranty support, please contact our customer care team at onlinesales@mymestic.co.uk with your order number and a brief description of the issue.
Looking for a split unit air conditioner that can cool, ventilate, and dehumidify your caravan or camper? Then the Mestic split unit air conditioner SPA-5100, with 1471 W power, might be just what you need. Easy to install yourself thanks to the continuously adjustable brackets.
Environmentally friendly refrigerant
Keep your caravan or motorhome nice and cool with the Mestic split unit air conditioner SPA-5100. The innovative split unit air conditioning consists of two parts that are connected to each other through the window by flexible tubes. These tubes are so thin that the window can be left slightly open. A window lock with a cam is perfect for this. The condenser is located on the outside of the vehicle and the evaporator on the inside. You can easily hang the split unit air conditioner in the window opening using a special bracket. This bracket is continuously adjustable and therefore suitable for almost all caravans and motorhomes. The outdoor unit of this caravan air conditioner has insulation class IPX4. This means that you can safely leave the unit outside during a rainstorm. If you don't need the air conditioner temporarily, you can easily remove it. The refrigerant used in this air conditioner is the highly environmentally friendly and efficient R290 gas. This gas has a GWP (Global Warming Potential) of only 3, which is significantly lower than other refrigerants.
Main benefits
Cools, ventilates, and dehumidifies
Very simple, universal mounting
Cooling capacity: 1471 W (5020 BTU)
Adjustable temperature: 16 °C to 30 °C
Includes night mode
Noise level: 55 dB
Split unit air conditioner with night mode
The SPA-5100 air conditioner is compact in size, taking up very little space. It has a cooling capacity of 1471 W and an operating temperature between 16 °C and 30 °C. With this capacity, the air conditioner can cool caravans up to 6 m or areas up to 40 m3. In caravans larger than 6 m, the air conditioner can provide pleasant cooling, although the set temperature may not be reached in every location. Nevertheless, the nominal power consumption of the split unit air conditioner is only 563 W. Perfect for camping holidays on campsites with low fuse ratings. The air conditioner has three fan speeds and a noise level of 55 dB. Do you switch to night mode at night? Then the lights on the device turn off and it switches to the lowest fan speed. Easily set the temperature using the touch panel on the air conditioner or the Mestic app in combination with your smartphone. Enjoy an undisturbed night's sleep at a comfortable temperature.
A cooled caravan or camper during your vacation. Who wouldn't want that? Choose the SPA-5100 split unit air conditioner. Adjustable from 16 °C to 30 °C and an environmentally friendly and efficient R290 refrigerant.
The table above gives you the key technical details at a glance.
Below is a quick guide to what each spec actually means when you’re out on the road,
so you can decide whether this unit is the right fit for your vehicle and camping style.
Cooling capacity (W / BTU)
This is the raw cooling power of the unit.
Higher watts or BTU ratings mean the air conditioner can cope better with larger
interiors, strong sun and hotter climates.
If you travel in southern Europe or park in direct sunlight, prioritise a higher
cooling capacity for faster, more consistent comfort.
Vehicle & interior size
This tells you the size of caravan, motorhome or interior space the unit is designed
to handle. If your living area is larger than the stated guide, the unit will still
cool, but it may take longer to reach and maintain your ideal temperature – especially
in very warm weather or open-plan layouts.
Heating power
Many roof air conditioners also provide heating.
This rating shows how much warmth the unit can deliver when used as a heater.
It’s ideal if you travel in shoulder seasons or through colder nights and want one
compact unit to handle both summer cooling and autumn or spring heating.
Remote control
A remote makes day-to-day use much easier: you can adjust temperature, fan speed and
mode without getting up, which is especially handy at night or when the unit is
mounted high in the ceiling.
Airflow & direction
Airflow describes how the cooled air is distributed through your living space.
Directional vents or adjustable louvers let you point the air where you need it most –
towards the seating area in the day or the sleeping area at night – for more
comfortable, efficient cooling.
Why choose Mestic Split Unit Air Conditioner Spa-5100 Uk?
The Mestic SPA-5100 is a more powerful split air conditioner designed for larger caravans, chalets or leisure set-ups where you want strong cooling performance without adding extra weight to the roof. With the main compressor located outside, it keeps indoor noise lower while still being able to handle higher heat loads.
It’s a great fit for customers who spend long periods on one site or use their vehicle as a semi-permanent base in warmer conditions. If you want a cooler, more stable indoor climate for relaxing, working or sleeping during hot spells, the SPA-5100 offers that extra capacity and flexibility over smaller split units.
