Anyone who travels a lot – whether in a camper van, van, tiny house or tent – knows: In summer temperatures, a A reliable air conditioning system is worth its weight in gold. However, not every solution is suitable for every application. In this comparison, we compare two popular air conditioning systems: the mobile EcoFlow WAVE 3 and the permanently installed Bergstrom OpenAir 12 V. Both systems offer high performance, operate efficiently, and are suitable for stand-alone applications – but differ significantly in their design, operation, and intended use.
EcoFlow WAVE 3: Mobile air conditioner with battery - cooling & heating everywhere
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The EcoFlow WAVE 3 is a modern, portable air conditioner specifically designed for mobile use. It combines high cooling and heating performance with a self-contained battery module – for maximum flexibility, even without a fixed power connection. With a cooling capacity of 6100 BTU (approx. 1800 W) and a heating capacity of 6800 BTU (approx. 2000 W), it can lower or raise the temperature in small rooms by up to 8°C within 15 minutes. This makes it ideal for tents, vans, garden sheds, or off-grid homes.
A real highlight is the add-on battery with 1024 Wh, which enables up to eight hours of wireless operation. The battery can be charged flexibly via 230 V AC, 12/24 V DC, a solar panel, or even on the go via an alternator charger—i.e., while driving. It is conveniently controlled via the EcoFlow app, which allows you to monitor all operating modes, timers, and battery status, even remotely.
The WAVE 3 is completely mobile, easy to set up, and requires no permanent installation. Ideal for travelers who value quick deployment, maximum independence, and compact dimensions.
Bergstrom OpenAir 12 V: Efficient roof air conditioner for permanent installation
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However, if you're looking for a permanent, permanently installed solution for your motorhome or camper, the Bergstrom OpenAir 12 V is the perfect choice. This roof-mounted air conditioner was specifically designed for vehicles and operates entirely on 12-volt direct current—directly from the onboard battery, without the need for an inverter.
The cooling capacity is up to 2020 W (alternatively adjustable to 1230 W) and ensures a pleasant indoor climate even in high outdoor temperatures. Thanks to full inverter technology, the system operates particularly quietly, efficiently, and with low wear. Its low power consumption, slim design (only 20 cm), and modern operating concept make the OpenAir a sophisticated solution for demanding travel. The vertically adjustable air outlets, integrated touch panel, IR remote control, and LED ambient light round out the high-quality overall concept.
The OpenAir 12 V is ideal for anyone who wants to permanently equip their vehicle with a powerful air conditioning system. Once installed, it runs reliably in continuous operation – even while driving – and is ideally suited for on-board voltages with high-quality lithium batteries such as the WATTSTUNDE NOVA series .
Which air conditioner is suitable for which application?
The decision between EcoFlow WAVE 3 and Bergstrom OpenAir 12 V depends largely on the type of project and individual requirements:
The EcoFlow WAVE 3 is ideal for:
- mobile operations without a fixed power supply
- Tents, vans, tiny houses and cabins
- Travelers who want to combine cooling and heating
- Users who prefer a plug-and-play solution
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People who seek maximum independence through battery operation
The Bergstrom OpenAir 12 V is perfect for:
- permanent installation in motorhomes and campervans
- larger vehicles with 12 V on-board power supply
- Users who rely on a quiet, powerful solution
- Travel with high expectations of comfort, even in hot weather
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Projects requiring optical integration and fixed mounting
Conclusion: Mobile or permanently installed? The right solution for your climate project
Anyone looking for a flexible, portable, and ready-to-use air conditioner will find a powerful all-in-one package with a battery, app control, and heating function in the EcoFlow WAVE 3. It's ideal for temporary setups, changing locations, and anywhere where a permanent installation isn't possible.
For anyone who wants to permanently upgrade their camper, van or motorhome, the Bergstrom OpenAir 12 V A particularly efficient and quiet solution with high performance and proven technology – perfect for long journeys in all weather conditions.
👉 Discover now You can find both models in our online shop – if required, we are also happy to provide comprehensive advice and accessories for your perfect off-grid setup.
