EcoFlow WAVE 3 Portable Air Conditioner | EcoFlow UK - EcoFlow UK
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EcoFlow WAVE 3 Portable Air Conditioner

Regular price £1,299.00
Sale price £1,299.00 Regular price £1,398.00
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1. Exceptional cooling and heating: 6100 BTU cooling and 6800 BTU heating capacity for all-season comfort.
2. Wireless and portable: Enjoy up to 8 hours of wireless, on-the-go use.
3. Fast cooling: Drops temperatures fast—in just 15 minutes.
4. Hassle-free installation: Insulated Exhaust Duct fits diverse outdoor setups with ease.
5. Smart app control: One-tap operation from your phone.
6. Multiple charging options (WAVE 3 Add-on Battery*) : Stay powered with multiple charge options for non-stop comfort.
7. 2-Year Warranty.
*The EcoFlow WAVE 3 Add-On Battery is sold separately.

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EcoFlow WAVE 3 Portable Air Conditioner
£1,299.00 £1,398.00 -£99.00

The terms “DELTA” and “RIVER” as mentioned on this page refer to products exclusively manufactured by ECOFLOW INC.

Why EcoFlow WAVE 3 Stands Out


Built for Every Scenario

Built for Every Scenario
Built for Every Scenario

Built for Every Scenario

Built for Every Scenario
Built for Every Scenario

Built for Every Scenario

Built for Every Scenario
Built for Every Scenario

Built for Every Scenario

Built for Every Scenario
Built for Every Scenario

Built for Every Scenario

Built for Every Scenario
Built for Every Scenario

Built for Every Scenario

Built for Every Scenario
Built for Every Scenario

Built for Every Scenario

Built for Every Scenario
Built for Every Scenario
Car
Camping
Tent
Camping
RV
Adventures
Outdoor
Fun
Indoor
Spaces
Semi-Trucks
Boating

Rapid cooling and heating

6100 BTU cooling power & 6800 BTU heating power

Drop 8°C/15℉ in just 15 minutes¹
with 6100 BTU power, setting an ideal environment for any scenario. Quickly warm up with 6800 BTU heating, raising the temperature by 9°C/17°F in just 15 minutes ², perfect for staying cosy during chilly outdoor activities like autumn camping.

8 Hours of Wireless Comfort

1024Wh LFP Add-On Battery*

The add-on battery offers up to 8 hours of uninterrupted use³—perfect for a full night of restful sleep. High-quality LFP cells ensure a lifespan of up to 10 years in daily use.

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

It's All on the App

Powered by EcoFlow OASIS

Easily manage everything from real-time battery status to water drain notifications, mode changes, and scheduled shutdowns—all from your phone, no matter where you are.

Intelligent Modes for Maximum Comfort


Intelligent Modes for Maximum Comfort
Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort
Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort
Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort
Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort

Intelligent Modes for Maximum Comfort
Intelligent Modes for Maximum Comfort
Automatic Function
Pet Care
Dehumidification
Function
Sleep Mode
Water Drain Alert

Automatically switches to heating when temperatures drop, keeping you cozy even on chilly mountain camping trips, ensuring a good night's sleep.

Set a temperature range of 35-45°C via the app to protect your pet from heatstroke indoors. Once the set temperature is exceeded, WAVE 3 automatically starts cooling and sends you an app notification.

Adjusts humidity to your desired level, so you can stay comfortable, even during rainy seasons.

Operates at just 44 dB, about the same as a quiet conversation, ensuring peaceful rest.

When the water tank nears full, the app sends a reminder to drain it, ensuring optimal performance.

Endless Cooling On the Go

Fast charging in just 75 min*

By combining AC charging and solar charging, the WAVE 3 Add-On Battery can be fully charged in as fast as 75 minutes. With the EcoFlow Alternator Charger, you can charge while driving—1 hour of driving, and stay comfortable all night.

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

Endless Cooling On the Go
Endless Cooling On the Go

Endless Cooling On the Go

Fast charging in just 75 min*

By combining AC charging and solar charging, the Add-On Battery can be fully charged in as fast as 75 minutes. With the EcoFlow Alternator Charger, you can charge while driving—1 hour of driving, and stay comfortable all night.

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

Endless Cooling On the Go
Endless Cooling On the Go

Endless Cooling On the Go

Fast charging in just 75 min*

By combining AC charging and solar charging, the Add-On Battery can be fully charged in as fast as 75 minutes. With the EcoFlow Alternator Charger, you can charge while driving—1 hour of driving, and stay comfortable all night.

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

Endless Cooling On the Go
Endless Cooling On the Go

Endless Cooling On the Go

Fast charging in just 75 min*

By combining AC charging and solar charging, the Add-On Battery can be fully charged in as fast as 75 minutes. With the EcoFlow Alternator Charger, you can charge while driving—1 hour of driving, and stay comfortable all night.

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

Endless Cooling On the Go
Endless Cooling On the Go
Solar Charging (400W)
EcoFlow Alternator Charger(400W/800W)
AC Charging (700W)
Car Power Outlet

Fully charged in 3 hours. Charging port: XT60 on the Add-On Battery.

Charge while driving. In 102 minutes, you're ready to go. Charging port: Both WAVE 3 and Add-On Battery (not recommended to use WAVE 3 directly due to unstable power).

Fully charged in 2 hours. Charging port: XT150 on WAVE 3 and Add-On Battery.

Emergency charging in 10 hours. Charging port: XT60 on the Add-On Battery.

See What's New

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

What's in the Box - EcoFlow WAVE 3

EcoFlow WAVE 3

EcoFlow WAVE 3

Insulated Exhaust Duct

Insulated Exhaust Duct

Exhaust Duct Adapter Covers (A, B, C)

Exhaust Duct Adapter Covers (A, B, C)

Drain Pipe

Drain Pipe

Winder

Winder

Duct Size Template

Duct Size Template

Safety Instructions, Quick Start Guide, Warranty Card

Safety Instructions, Quick Start Guide, Warranty Card

What's in the Box - EcoFlow WAVE 3 Add-On Battery*

EcoFlow WAVE 3 Add-On Battery

EcoFlow WAVE 3 Add-On Battery

Add-On Battery Cable

Add-On Battery Cable

Car Charging Cable

Car Charging Cable

Safety Instructions, Quick Start Guide, Warranty Card

Safety Instructions, Quick Start Guide, Warranty Card

*The EcoFlow WAVE 3 Add-On Battery is sold separately.

FAQ

The automatic drainage function is activated when the condensate level in the bottom water reservoir reaches the pump sensor detection point.
Based on testing, automatic drainage is typically triggered when the accumulated condensate volume is approximately 300–400 mL. The actual trigger volume may vary slightly due to factors such as the unit's placement angle and ambient humidity.

To ensure proper operation of the automatic drainage function, please keep the air conditioner positioned as level as possible. Excessive tilting may cause uneven water distribution within the reservoir, leading to inaccurate water level detection and compromised drainage performance. In severe cases, condensate may even overflow from the edges of the reservoir.
After the air conditioner is switched off, residual condensate may still be present in the bottom water reservoir, which is the primary cause of minor water spillage during handling.

- After automatic or manual drainage, approximately 50–100 mL of residual condensate remains in the reservoir—this is normal.
- If the automatic drainage threshold was not reached before shutdown and manual drainage was not performed, the condensate generated during operation will continue to accumulate in the reservoir, potentially leaving 100–400 mL of water.

During transport, if the unit is tilted at a significant angle, residual condensate in the reservoir may flow out from the front, rear, or side edges of the tray.

For long-distance transportation or storage, we recommend first draining residual water in a safe environment by opening the drain plug. Gently lift the front of the unit to direct the accumulated water toward the drain outlet and allow it to flow out, thereby emptying as much water as possible before proceeding with long-distance transport or storage. During handling, please keep the air conditioner as level as possible and avoid excessive tilting to minimise any inconvenience caused by water leakage.
No, it cannot be completely emptied. After either automatic or manual drainage, a small amount of residual condensate—approximately 50–100 mL—will remain in the reservoir.

The main reasons are as follows:
1. Reservoir geometry limitations: The reservoir has a relatively shallow slope and incorporates internal baffle structures, which prevent all condensate from converging toward the pump suction inlet. As a result, some water may remain around the perimeter of the reservoir.
2. Pump suction positioning: The pump suction inlet is not located at the lowest point of the reservoir. The lowest point, where the drain plug is situated, will still retain some condensate that cannot be evacuated by the pump.

Therefore, it is normal for a small quantity of residual water to remain in the reservoir after automatic or manual drainage. When disconnecting the drain hose, please prepare a towel or container to catch any residual water that may spill out, so as to avoid wetting the surrounding area.
When the air conditioner enters a full-water state, the bottom water reservoir can hold approximately 1100 mL of condensate.
1.Car charger (XT60 port)
2.Solar panel (XT60 port)
3.EcoFlow Alternator Charger (XT60/XT150)
LFP (Lithium Iron Phosphate) – safer and longer-lasting.
Retains ≥80% capacity after 4,000 charge cycles.
Yes! IP65 rating – protects against dust and water splashes.
Car charger (12V/96W): ~16.2 hrs
Car charger (24V/192W): ~7.3 hrs
Solar (ideal conditions): ~3.6 hrs
Actual time may vary based on usage.
Yes!
USB-A: Up to 18W
USB-C: Up to 140W
1.Shore power outlet
2.EcoFlow WAVE 2/3 Add-on Battery (XT150 port)
3.EcoFlow portable power stations (XT150 port)
1.Check power connection:
Plug it into a shore power outlet first. If it starts, the battery was fully drained.
2.Low battery discharging limit:
If the battery is below the discharging limit, plug it in to charge.
Optional: Set the discharging limit to 0% in settings. This gives you 1 extra minute of runtime before shutdown.
3.Future improvement:
A firmware update will soon improve low-battery handling for smoother operation.
Still stuck? Contact support for help! 😊
1.Hold the Drainage Button for 3 seconds to start auto-draining.
After draining, remove the tube and tilt the device backward slightly to remove leftover water.
1.Drain all water before moving (use the drainage button).
2.Never tilt or flip the device – it may break internal parts.
3.Check battery connections if attached.
4.Turn off the device before moving.
5.Total weight ≈55 lbs (25 kg) – Don’t move it alone!
1.Keep the WAVE 3 away from dust or debris to prevent strange noises.
2.Avoid direct sunlight – it reduces cooling efficiency.
3.Place the WAVE 3 flat on the ground to avoid water leakage.
1.Always keep WAVE 3 connected to power during updates. Unstable power may cause failures or damage.
2.If an update fails due to power issues:
Reconnect to power and retry.
Contact support if the problem persists.
1.Check the packaging for damage. Open the box and verify all components are included.
2.Plug the device into a shore power outlet, turn it on, connect it to Wi-Fi via the EcoFlow app, and update the firmware.
⚠️ Keep WAVE 3 plugged in during updates to avoid failures!

Specs - EcoFlow WAVE 3

Net Weight

Approximately 15.6 kg (34.4 lb)

Dimensions

519×297×336 mm
(20.4×11.7×13.2 in)

Cooling Capacity

1800W (6100BTU)

Heating Capacity

2000W (6800BTU)

Temperature Setting Range

16-30℃ (60.8-86℉)

Refrigerant/Amount

R290/112 g (R290/0.25 lb)

Air Volume

330m³/h

Rated Cooling Power (AC/DC)

690W/640W

Rated Heating Input Power (AC/DC)

645W/606W

Cooling Efficiency (AC/DC)

2.6/2.8

Heating Efficiency (AC/DC)

3.1/3.3

AC Input

100-240V~50/60 Hz,
820W Max

Add-on Battery Input

700W Max

Operating Temperature

5-50℃ (41-122℉)

IP Rating

IPX4

Noise Level

44-58 dB

Remote Control

App (Wi-Fi(2.4G, 5G), Bluetooth)

Run Time with EcoFlow Add-On Battery

2-8 hr

Specs - EcoFlow WAVE 3 Add-On Battery

Net Weight

Approximately 9.7 kg (21.4 lb )

Dimensions

516×281×111 mm
(20.3×11.1×4.4 in)

Battery Capacity

1024Wh 51.2V 20Ah

Battery Chemistry

LFP

Cycle Life

80%+ capacity after 4000 cycles

Maximum Input Power

1000W Max

Automobile Auxiliary Power Outlet Charging Input

12V/24V,8A Max, 200W Max

Solar Input

11-60V,13A Max, 400W Max

Maximum Output Power

858W Max

USB-A Output

5/9/12V, 2.4/2/1.5A, 18W Max

USB-C Output

5/9/12/15V⎓3A Max;
20V/28V⎓5A Max, 140W Max

Charge Temperature

0-45℃ (32-113℉)

Discharge Temperature

-10-50℃ (14-122℉)

IP Rating

IP65

WAVE 3 Compatibility

WAVE 3 Add-On Battery Compatibility

Set Up EcoFlow WAVE 3 in Minutes

Disclaimers:

[1] Tested in a 10 cubic meter space at 60°F/15℃. Performance may vary with room size and temperature.
[2] Tested in a 10 cubic meter space at 60°F/15℃. Results may differ depending on conditions.
[3] 8 hours of wireless use in Eco Mode under optimal conditions. Battery life may vary based on usage and environment.

  • 5 stars: 5 (56%)
  • 4 stars: 1 (11%)
  • 3 stars: 1 (11%)
  • 2 stars: 1 (11%)
  • 1 star: 1 (11%)
P
Paul T.
Wave 3 warranty is worthless

My wave 3 worked well at first but then it failed with code 31 problems. Contacted company and was offered 50% cash settlement as not able to repair, they didn’t even inspect it.
The unit is 11 months old and has only been used a handful of times, they would not honour the 2 year warranty.

A
Ando
My Ecoflow Wave 3 arrived on time, but it’s DOA

My Ecoflow Wave 3 arrived on time. However, the cooling was not working from the start. I’ve been waiting for 2 or 3 weeks for a solution. As you know, it’s the middle of a heatwave atm. I’m so disappointed that they can’t get it right

A
Alison
Ok product but poor customer service

Wave 3 and battery is ok, but more bulky and cumbersome with the ducting pipes than expected. Not as easy or as portable as made out to be. It is quite a mission getting the pipes fitted out through a window. What has been the most additional pain is the promo offer linked with purchase of the Wave 3 which was a EcoFlow Rapid Magnetic Power Bank which was worth having. However it would not charge up and was dead on arrival. There have been lots of reviews about this problem. The growing suspicion from those reviews is that potentially dead power banks were being sent out because they'd got surplus stock that had been lying around in storage too long so it was a good way of getting rid of them. The returns/refund process is so complicated and long winded that I am sure a lot of people give up and not bother getting a replacement. I stuck at it but in the end accepted the Wave 3 protective bag instead (which by the way took much too long to be authorised as an alternative and I am still waiting to receive the bag). Could do much better Ecoflow. Dread to think what it will be like if ever we have a problem with the Wave 3 itself.

V
Volker
Funktioniert tadellos...

Das Klimagerät macht genau was es soll - Top 😁

J
Joe

I bought this for my home office to save on electricity and only cool the one room in my home whilst the rest of the family are out. It works great and it is running on less than 300w per hour, outdoor temperature 28C indoor temperature 22C. The one big issue I have with ecoflow is I am unable to choose the carrier. Every product I have purchased from ecoflow their choice of carrier has failed to deliver to my door 100%.

M
Michael H.
Perfect for camping or indoors Love it

The EcoFlow WAVE 3 is hands-down one of the most impressive portable air conditioners I’ve used. It delivers powerful cooling in a compact, easy‑to‑move design, and the fact that it can run completely wire‑free makes it a game‑changer for camping, vans, garden offices, and emergency home cooling.⭐ What I Loved
Exceptional cooling performance
It cools fast—noticeably faster than most portable units. EcoFlow’s claim of dropping temperatures within minutes actually holds up, making it perfect for small rooms, tents, and vehicles.

Portable and genuinely convenient
The size is compact, the handles are sturdy, and setup is simple. Whether I’m moving it around the house or taking it outdoors, it never feels like a hassle.

Battery or mains power flexibility
Being able to run it off EcoFlow batteries is a huge plus. No noisy generators, no cables everywhere—just clean, quiet cooling wherever you need it.

Smart app control
The app is intuitive and lets you adjust modes, schedule cooling, and monitor power usage remotely. It feels like a premium smart‑home device.

Heating included
The built‑in heat pump is surprisingly capable. It’s not just a summer gadget—it’s useful year‑round.

🔧 Performance & Noise
The WAVE 3 is noticeably quieter than many portable AC units. While you’ll still hear it running, the sound is more of a steady hum rather than the harsh mechanical noise typical of cheaper models. Cooling output is strong and consistent, even in warm outdoor conditions.

🎒 Ideal For
Camping and caravans

Garden offices or sheds

Bedrooms during heatwaves

Off‑grid setups

Anyone who wants cooling without bulky hoses or heavy units

✔️ Final Verdict
The EcoFlow WAVE 3 isn’t the cheapest portable AC on the market, but you absolutely get what you pay for: fast cooling, smart features, true portability, and year‑round usefulness. If you want a premium, reliable, and flexible cooling solution, this is one of the best options available today.

J
JC
Expensive, but only consumer dual hose aircon in UK

Got this for the Summer heat waves, A dual hose Air con is a must or you just create negative pressure inside which will draw hot air back into your room.Being a wifi device, was hoping for better Home Assistant integration, but being new it will probably take some time.Was delivered upside down, so let it stand for 24h just in case

R
Raminofski

So far, so good. The unit matches the description and performs as expected...no complaints so far.Regarding noise: when standing close to the evaporator side, there’s a faint high-pitched sound. I believe this is normal, as I’ve heard a similar noise from split units in the past when inspecting them up close.One minor issue: the plastic attachment connecting the exhaust from the condenser doesn’t seal perfectly. A small amount of warm air escapes from the right side, which could be improved with a tighter fit.Regarding energy consumption: you can view the total power usage (in watts) directly from the mobile app, which I find quite nice and useful. However, keep in mind the actual efficiency of the device: its SEER rating is 2.6, which is fairly average for a portable AC.(For comparison, some De’Longhi models on Amazon reach 3.1 SEER, though unfortunately they’re all single-hose units.) By contrast, split units typically exceed a SEER of 6, making them significantly more energy-efficient.I'm planning to update my review in 2-weeks with some videos :)

J
Jack W.
Amazing unit. Thought it was DOA when it arrived but it's been ok since

I love this unit. I did get an error code 12 when it arrived, but that seems to have been a blip and it's been working flawlessly.Here's my situation:I have a 13 m2 bedroom in the attic with a typical PVC casement window (they're a terrible fit for portable units as they open outward from a hinge). I can't get a split system as I do not have permission, but I also need to sleep comfortably during hot times. However, the UK market for effective AC units is dire. For example, having a dual-hose AC instead of a single hose one (which is what most of the UK market has) can boost efficiency massively by up to 40% with the same energy usage because it doesn't suck the air from the room that's being cooled out the window. The UK market desperately lacks these as the demand isn't there for it.When I saw this unit, I almost dismissed it because I thought it can't possibly be dual hose while being that small. But it is! Even better, you can even put this unit OUTSIDE, and run two hoses that circulate conditioned air to the unit through a window for even more efficiency and quiet. While I can't do that, it's a nice option if I want to carry it downstairs.Not only is it small, but it's quiet, well built, and efficient. I have yet to break 500w on max mode, but I can easily let this thing idle at 300w to maintain a comfortable and dry room temperature. Sleep mode uses even less, around 230w. This is a massive drop in energy consumption vs the typical cheap units that consume over a 1 kw and are relatively loud.I was not only surprised to see an efficient, dual hose, easy to carry unit being sold in the UK, but I was also surprised to receive one and it live up to my expectations! This is great, as being in the UK means most of the year is cool enough to not need this unit so I can put it somewhere out of the way super easily while not in use or carry it up and down the stairs without breaking a sweat.Here's some questions I had before I bought one that I know the answer to now:Q: How does it fare for a light sleeper?A: I'm a somewhat light sleeper. While it's definitely noticeable at night, it's tolerable on sleep mode. It's got a lower hum in addition to the white noise of the fan, and doesn't make many abrupt stop-and-start noises that can be really disruptive but you definitely hear it kick in, but it does do a decent job of ramping it up slowly. It can be disruptive to light sleepers, but for moderate to heavy sleepers this unit is no problem.Q: Is it easy to carry?A: The top of the unit where the vents are work as carry handles. If you're able bodied, you should be able to carry it with ease. Just make sure to not tip it or swing it around as you carry, or you may need to let the compressor rest upright for a while before turning it back on to prevent damaging it.Q: How well does the de-humidification work?A: I haven't yet used the dedicated dehumidifier mode but it really does dry the air. As of writing, the air outside had a relative humidity of 70% at 21C last night, which feels a couple of degrees hotter and is stickier. This unit dried the air in my room to 45% humidity which is perfect, and feels really comfortable. So, even if it's plausible to say the outdoor temperature is fine, UK weather is actually pretty humid most times! The built-in tank fills up very quickly within a couple of hours under these conditions, so I have the supplied drainage tube flow into a 1 gallon container (which must be positioned under the unit, and the end of the tube must not touch the bottom of the container). As I have this unit on a table, it's easy. And to empty it is as easy as tipping the contents of the container in the sink.Q: Can I work from home with this unit on?A: Most definitely! It's quiet enough to work from home with this unit on the background I think. I recommend running it in eco mode with a low fan setting, it's a great balance of power and noise. And, with noise suppression on with Teams or Slack, no one will hear it on the other end (which you probably have on without realizing anyway).Q: How long are the hoses?A: I haven't measured and it's hard to say as they can almost be pulled to any length, but if you plan to route them through the small corner window (as typical of PVC casement windows) you will need to prop it up on a table or something at least 1m tall. I had to get inventive with my unit.Q: How long is the power cable?A: It's actually pretty short at 1.5m. So I would recommend an extension cord be purchased with this unit if your nearest outlet it far away. I don't know how this will fare with camping though, as I do not plan to use this for camping.Q: Do I need an American adapter plug?A: No. I have seen some dual hose units in the UK have the American plug but this one thankfully is designed for UK customers!Q: Will it work for large rooms?A: Probably not. I think anything larger than 15 m2, and this unit might start to struggle to keep up. My 13m2 room is being cooled effectively by this uni...

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