EF ECOFLOW Wave 2 Portable Air Conditioner, Air Conditioning Unit with Heat, Portable AC for Outdoor Tent Camping/RVs or Home Use (Battery Not Included) Review (2026)

What it is

The EcoFlow Wave 2 is a portable air conditioner built specifically for tents, RVs, cars, and other off-grid spaces rather than home use. It delivers 5100 BTU of cooling and 6100 BTU of heating, running on R290 refrigerant, and EcoFlow states it can drop the temperature inside a space from 86 to 68 degrees Fahrenheit in about 5 minutes under its test conditions. The unit weighs about 32 pounds and measures roughly 20.4 by 11.7 by 13.2 inches. This particular listing does not include a battery, so it needs to be paired with EcoFlow's Add-on Battery, a compatible DELTA series power station, or a direct AC power connection to run.

Heating and cooling modes

Having both heating and cooling in one unit is the main thing that sets the Wave 2 apart from single-mode portable coolers, letting campers use it through cooler shoulder-season trips as well as hot summer weekends instead of buying separate equipment for each. In cooling mode with humidity below 70 percent, EcoFlow says the unit needs no drainage or installation, which matters for tent and RV use where a drain hose is impractical. It runs in Sleep Mode at around 44 decibels, quiet enough for most people to sleep near, and includes multiple fan and temperature settings for tuning output to the space.

Power requirements

Because this listing ships without a battery, buyers need a plan for power before it arrives: EcoFlow's Add-on Battery, a DELTA 2 or DELTA Max power station, or any compatible power source with at least 820W of input can run the unit. Runtime depends heavily on which battery is paired with it, ranging from a few hours at full cooling output to significantly longer in Eco Mode with a larger battery. Anyone who already owns a compatible EcoFlow DELTA series station can save real money buying the AC alone, while first-time buyers should factor the battery cost into the total price before comparing it against bundled competitors.

Fit for the job

The Wave 2 is purpose-built for tents and RVs rather than adapted from a home unit, which shows in details like its compact footprint and lack of a bulky exhaust hose setup, though it still needs some form of exhaust venting to move heat out of an enclosed tent effectively. It pairs naturally with EcoFlow's own battery ecosystem, which is convenient for campers already invested in DELTA power stations but less useful for anyone using a different brand of portable power. Setting it up in a tent means planning airflow and venting ahead of time rather than just placing the unit down and turning it on.

Bottom line

The EcoFlow Wave 2 suits campers and RV owners who want both heating and cooling from one off-grid unit and who either already own compatible EcoFlow batteries or are willing to buy one alongside it. The 5100 BTU cooling and 6100 BTU heating specs, quiet Sleep Mode, and no-drainage operation make it a genuinely useful piece of gear for tent camping in hot or cold weather. Buyers without an EcoFlow battery already on hand should price in the Add-on Battery or a DELTA station before comparing this against bundled portable AC units from other brands.

Frequently asked questions