EcoFlow Wave 3 UK: Specs, Price and Where to Buy

Last updated: 4 July 2026

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What is the EcoFlow Wave 3?

The EcoFlow Wave 3 is a compact portable air conditioner that launched worldwide in May 2025. It is the successor to the Wave 2, and it does three jobs in one box. Specifically, it cools, heats and dehumidifies. Because it uses heat-pump technology, it works as a year-round climate unit rather than a summer-only gadget.

Unusually for the UK market, it is a dual-hose design. One hose draws intake air from outside, while the other exhausts heat outside. As a result, it cools far more efficiently than a typical single-hose portable, which pulls warm air back into the room. For the full hands-on verdict, read our EcoFlow Wave 3 review.

EcoFlow Wave 3 key specs

• Cooling: 6,100 BTU (1,800 W)
• Heating: 6,800 BTU (2,000 W) via heat pump
• Airflow: 330 m³/h
• Rated room size: up to around 17 m²
• Noise: 44 to 58 dB (44 dB in sleep mode)
• Refrigerant: R290 (a lower-carbon option)
• Weight: 15.6 kg unit; 9.7 kg Add-on Battery; about 25 kg combined
• Dimensions: 519 x 297 x 336 mm
• Protection: IPX4 (unit); IP65 (battery)
• Add-on Battery: 1,024 Wh LFP, up to 8 hours in Eco mode, roughly 75-minute recharge, 4,000 cycles to 80%
• Hoses: insulated, extend to about 1.3 m
• Connectivity: EcoFlow app, Wi-Fi (2.4/5G) and Bluetooth
• Warranty: two years

You can confirm the full specification on the official EcoFlow UK product page and in the EcoFlow Wave 3 user manual.

EcoFlow Wave 3 price and where to buy

Prices move with EcoFlow's regular sales, so always check before you buy. At the time of writing, the unit alone sits around £699 to £799. The Wave 3 plus Add-on Battery bundle then runs around £1,099 to £1,299. The Add-on Battery on its own is roughly £599.

You can buy direct from EcoFlow or from Amazon. New customers currently get 10% off through our EcoFlow referral link. Amazon stock, meanwhile, comes and goes, so it is worth checking both.

Get 10% off with our EcoFlow referral

Check EcoFlow Wave 3 stock on Amazon

Key features and benefits

• Dual-hose efficiency: draws intake from outside, so the room stays sealed and cools faster.
• Year-round use: cools in summer and heats in winter via a heat pump.
• Battery option: the Add-on Battery unlocks cord-free running for up to 8 hours in Eco mode.
• Quiet sleep mode: rated at 44 dB, which EcoFlow likens to a quiet conversation.
• Smart control: the EcoFlow app handles scheduling, temperature and drain alerts.
• Greener refrigerant: R290 has a lower global-warming impact than many alternatives.

Who the EcoFlow Wave 3 suits

The Wave 3 suits people who cannot fit a permanent split system and who want cooling in one room. Consequently, it works well in bedrooms, home offices, nurseries, garden rooms, caravans and campervans. It is a spot-cooler, though, not a whole-home solution. For larger rooms, or for the lowest price per BTU, a single-hose Meaco or Pro Breeze may suit you better.

EcoFlow Wave 3 FAQs

How much does the EcoFlow Wave 3 cost in the UK?

At the time of writing, the unit alone is around £699 to £799, and the Add-on Battery bundle is roughly £1,099 to £1,299. Prices change with EcoFlow's sales, so confirm the current figure before buying.

Is the EcoFlow Wave 3 dual-hose?

Yes. It uses two hoses, one for intake and one for exhaust. This keeps the room sealed and makes it more efficient than a single-hose portable air conditioner.

Does the EcoFlow Wave 3 need the battery?

No. The unit runs from the mains on its own. The Add-on Battery is optional, and it adds cord-free running of up to 8 hours in Eco mode.

Can the EcoFlow Wave 3 heat a room?

Yes. It is a heat pump rated at 6,800 BTU, so it heats as well as cools. That makes it a year-round unit for smaller spaces.

Is the EcoFlow Wave 3 good for a bedroom?

For a small, well-sealed bedroom, yes. It has a 44 dB sleep mode and holds a steady temperature overnight. Our EcoFlow Wave 3 review covers real-world bedroom use in detail.

Authority, warranty and support

The Wave 3 is distributed in the UK by ECOFLOW INNOVATION UK LTD, registered at 41 Devonshire Street, London W1G 7AJ. It carries a two-year warranty, so UK buyers get local support rather than a grey import. Independent testers rate it highly too. T3, for example, called it "a top-tier device that does an incredibly good job", while noting the price is steep.

Disclaimer: prices, offers and referral terms are accurate at the time of publication but can change. This page includes affiliate or referral links, and we may earn a commission or referral bonus at no extra cost to you.

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