EcoFlow built its reputation on portable power, and the WAVE 3 applies that logic to climate control. This is a battery-powered air conditioner that actually works. It delivers 6100 BTUs of cooling, enough to take the edge off a hot tent, a stuffy van, or a small room when the grid is down or unavailable.

The performance is specific and measurable. In testing, it lowered the temperature by 15°F within 15 minutes in high heat. The 2000W heating mode is equally capable, raising air at the vents by 17°F just as quickly. You control it all from an app, and the internal battery runs for up to 8 hours on a charge. A 75-minute fast charge gets it ready to go again. It automatically adjusts between day and night cycles to maintain a set temperature without constant input.

This capability comes with clear boundaries. The 6100 BTU rating is best for confined spaces like campervans, RVs, or bedrooms under about 150 square feet. It’s a powerful tool for off-grid comfort, not a replacement for a central home system. For its intended use—camping, vanlife, backup power—it delivers a level of climate control that was previously hard to find outside of a fixed installation.