EcoFlow

EcoFlow WAVE 3 Portable Air Conditioner

EcoFlow EcoFlow WAVE 3 Portable Air Conditioner

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Overall

#22 in

Portable Air Conditioners

according to Reddit Icon Reddit

Sentiment score52% positive
12
4
7
Last updated: Jun 30, 2026

Reddit Reviews

Reddit Icon0ofspades
12 months ago

My Wave 3 was working fine for nearly a month, now it randomly started leaking a lot of water from the side. Drainage is still working, but a considerable amount now leaks out from the side. Ecoflow's QA is definitely very bad.

Reddit Icon21onDec23
11 months ago

If you need a more compact unit, the Eco Flow Wave 2 or Wave 3 are fantastic. Two summers/winters on my Wave two. It heats at 6100 BTUS and cools at 5100 BTUs. Expensive, yes. However, they can run off of their own battery for 8 hours and can be recharged via solar or car charging.

Reddit Icon4l3xithymia
12 months ago

Is this [the one you are talking about](https://www.diagnostic-expertise.com/3-in-1-portable-air-conditioner)? If yes, I can confirm you do not need to use an exhaustion tube.

Reddit IconConstant_Spite_1476
3 months ago

I have a wave 3 that has 6800 btu of cooling. And while it can cool my van in direct sun with high 90s day. It has to use max mode to keep it comfortable. I cant imagine this would make a dent in anything over 80.

Reddit IconCute-Procedure-3576
11 months ago

We have the same thing happening with ours that we just got two weeks ago. Did you figure it out? :(

11 months ago

Thank you for the honest reply! I mailed ours back today--we need ones for our doggies in the van and no way was that cutting it. We had bought a 12V rooftop AC unit but I was hesitant to have to completely rehaul our van to install it and get a proper battery bank (We power everything off of our Goal Zero right now), but looks like we are going to go that way now. Will be a big van project for this year! Thanks again!!

Reddit Iconfalse_thr0waway
12 months ago

I tested it in my bedroom, which might as well be a sauna in the summer, and within 20 minutes it went from 'I’m melting' to 'oh hey, this is actually comfortable.' It’s not going to turn your place into an igloo, but for something this small, I was shocked at how well it handled the heat. What really sold me was the battery life. I ran it for a full movie night (yes, all three _Lord of the Rings_ extended editions, don’t judge me) and it still had juice left. And it’s so easy to move around—I carried it to a friend’s garage hangout when their AC died, and suddenly I was the hero of the night. On eco mode, it’s quiet enough that I could sleep without feeling like I was next to a jet engine. That said, it’s not perfect. The app is kind of a mess—it keeps forgetting my settings, and half the time I have to restart it to get it to connect. And if you crank it up to max, it does get a little loud, like a window AC unit on medium. Not unbearable, but noticeable if you’re trying to have a conversation. Still, after returning three other portable ACs this summer, I’m keeping this one. It’s not magic, but it’s the closest thing I’ve found to beating the heat without installing a permanent unit. If you’re on the fence, just go for it—worst case, you join the club of people who finally stopped sweating through their sheets every night

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