The EcoFlow Wave 2 is marketed as a versatile portable heat pump with capabilities to cool, heat, and run off-grid using solar panels or an optional battery. On paper, it seems like the perfect solution for vanlifers, off-grid adventurers, and even those needing a compact HVAC solution for small spaces. However, after extended testing, it's clear that EcoFlow’s marketing oversells what the Wave 2 can realistically do.
Compact Yet Limited Performance
The Wave 2 stands out due to its compact size (20.4 x 11.7 x 13.2 inches) and portability, weighing only 32 pounds. Despite packing 1500W of cooling and 1800W of heating power, its 5100 BTU capacity for cooling and 6100 BTU for heating are modest at best. For comparison, most entry-level window air conditioners offer around 8000 BTUs of cooling power at a lower price. The portability and flexibility of the Wave 2 are its strengths, but the trade-off is limited performance, making it unsuitable for larger spaces or extreme climates.
Testing in Real-World Conditions
After a year of testing, it became clear that the Wave 2 struggles to deliver on EcoFlow’s ambitious claims. The company promotes its use in various large spaces like RVs, boats, and even campsites. However, in practical tests, the Wave 2 could only cool or heat very small, well-insulated spaces. For instance, during a test in a small surf shack and a campervan, the best temperature drop achieved was 8°F over 30 minutes—far from EcoFlow’s claim of an 18°F change in just five minutes.
The Wave 2’s optional battery offers up to eight hours of operation, but only on its lowest eco settings. This means users looking to cool or heat a space overnight will likely need a backup power solution, especially in more demanding environments.
Where the Wave 2 Falls Short
The Wave 2 is limited by several factors: short ducts, a need for well-insulated spaces under 350 cubic feet, and the constraints of portable power. In high temperatures, such as during tests in a van exposed to direct sunlight, the unit barely maintained internal temperatures close to outside conditions, underscoring the limitations of its 5100 BTU cooling capacity.
Moreover, the Wave 2 can be difficult to set up in a van or other tight spaces, requiring creative insulation and venting solutions. Its placement options are also restricted by the short power cable and ducts, making it tricky to position for optimal performance.
Minor Flaws in Design and Functionality
Over time, some issues with the Wave 2 emerged. The physical control buttons became unreliable, though the unit could still be controlled effectively via EcoFlow’s app. More concerning is the occasional high-pitched squeal from the device, which is believed to stem from the water pump—a known issue that EcoFlow has acknowledged and offers replacements for under warranty.
Who Should Consider the Wave 2?
For those needing a portable, battery-powered heat pump for very small, insulated spaces, the Wave 2 could be a viable option. It excels at cooling smaller areas like compact bedrooms or tiny campervans, especially in moderate climates. However, if you’re looking for a more robust solution for larger spaces or extreme climates, traditional HVAC systems are more reliable and cost-effective.
Ultimately, while the EcoFlow Wave 2 is innovative and could be a game-changer in certain scenarios, it’s not the miracle product EcoFlow makes it out to be. As more battery-powered heat pumps enter the market, we can expect continued improvements, but for now, manage your expectations when considering the Wave 2.
