EcoFlow Wave 2 Review
Pros
- 5100 BTU cooling — effective in 10sqm+
- Also heats to 6100 BTU
- Runs on EcoFlow Delta Pro or DELTA 2 Max
- App scheduling and remote control
- Self-cleaning mode prevents mould
- No exhaust hose required
- Quiet at 44dB in eco mode
- Works in 35°C+ ambient temperatures
Cons
- Expensive for the cooling capacity
- Short runtime at max output (~3.5hrs on DELTA 2 Max)
- Less effective in spaces over 15sqm
- Requires EcoFlow power station for off-grid use
- App connectivity occasionally drops
EcoFlow Wave 2: The Off-Grid Air Conditioner Finally Worth Buying
Portable air conditioners have always had a fatal flaw for off-grid use: they need continuous mains power, drawing 1000–2000W for hours at a time. The EcoFlow Wave 2 changes that with a ventless design efficient enough to pair with EcoFlow power stations, enabling genuine off-grid cooling. After testing through three weeks of Australian summer, here's our verdict.
How It Works
The Wave 2 draws power from an EcoFlow power station via a proprietary port, or from a standard wall outlet. The ventless operation — unlike traditional portable ACs needing a window exhaust hose — makes it practical for tents, campervans, boat cabins, and outdoor work sites. Cooling output of 5100 BTU dropped a 12sqm van interior from 35°C to 23°C in approximately 25 minutes during testing.
Energy Consumption
At maximum cooling, the Wave 2 draws approximately 500W. Paired with the EcoFlow Delta 2 Max (2kWh), this gives around 3.5 hours of continuous cooling. At eco mode (~300W), runtime extends to 6+ hours. With solar charging simultaneously, runtime becomes indefinite in good conditions.
Heat Mode
The 6100 BTU heat mode at 600W is genuinely useful for off-season use. A cold morning in a tent or campervan can be warmed quickly without the fire risk of gas heating.
Final Verdict: 8.5/10
The EcoFlow Wave 2 is the most practical off-grid air conditioning solution available in 2026. The ventless design, dual heating/cooling, and app integration make it genuinely versatile. At $1,099 it's expensive, but the off-grid capability justifies the premium for the right buyer.
Frequently Asked Questions
Does the EcoFlow Wave 2 require a power station?
No — it plugs into a standard wall outlet for indoor use. For off-grid use it connects to EcoFlow's Delta Pro or DELTA 2 Max via a proprietary port. The optional Wave 2 Add-on Battery ($499) provides approximately 3 hours of cooling at full output. If you're comparing larger home backup options, see our EcoFlow Delta Pro review for full power station details.
What size space can the EcoFlow Wave 2 cool?
Rated for up to 10–12 square metres. It excels as personal or zoned cooling in a tent, campervan, or small room. For larger spaces cooling is noticeable but you won't achieve large temperature drops. Pairing it with a home energy monitor can help you track consumption and optimise runtime across your setup.