How loud is the EcoFlow Wave 3?

44 dB(A) indoors, about as loud as a quiet library.

What size room does the EcoFlow Wave 3 cool?

It is rated to cool a room 8–15 m² (1.8 kW · 6,100 BTU).

Do I need a professional to install the EcoFlow Wave 3?

No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.

Does the EcoFlow Wave 3 heat as well as cool?

Yes. It also heats, rated 2 kW.

Portable monobloc Heats too

EcoFlow

Wave 3

Name: EcoFlow Wave 3
Brand: EcoFlow

EcoFlow Wave 3 is a compact battery-capable portable air conditioner and heater (6,100 BTU cooling, 6,800 BTU heating, R290) aimed at off-grid, camping and small-space use. It is not registered on the EU energy label, so SEER and class are null.

€1,099

List price

EU pricing around EUR 1,099 for the AC unit; add-on battery extra. Battery-capable off-grid unit.

No live retailer link for this model right now.

Performance

Cooling capacity: 1.8 kW · 6,100 BTU
Heating capacity: 2 kW
Room coverage: 8–15 m²
SEER (cooling): Not published
SCOP (heating): Not published
Energy class (cooling): Not published
Energy class (heating): Not published
Annual energy (cooling): Not published

Noise, size & features

Indoor noise

What is good

Runs cordless on an optional battery (off-grid, vanlife, tents)
Reversible: 6,100 BTU cooling and 6,800 BTU heating, R290 refrigerant
Quiet 44 dB minimum and full app control

What to watch

Small cooling capacity, only suitable for tiny spaces
Expensive, and not registered on the EU energy label (no SEER/class)

Installation & the rules that apply

This is a portable monobloc. The most regulation-light option by far. No F-gas certified installer is needed because you never break into the refrigerant circuit, no planning permission or permit is triggered since nothing is fixed to the building, and a landlord usually cannot refuse it as there are no permanent alterations. The main constraints are the tenancy or building rules on window-kit appearance and noise nuisance to neighbours.

Installation

Plug and play

Refrigerant

R290

GeneralRenters: get written landlord consent firstReviewed June 2026Often blocks install

Common questions about the EcoFlow Wave 3

How loud is the EcoFlow Wave 3?: 44 dB(A) indoors, about as loud as a quiet library.
What size room does the EcoFlow Wave 3 cool?: It is rated to cool a room 8–15 m² (1.8 kW · 6,100 BTU).
Do I need a professional to install the EcoFlow Wave 3?: No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.
Does the EcoFlow Wave 3 heat as well as cool?: Yes. It also heats, rated 2 kW.

Is a portable even the right type?

Compare portables against the other types on price, noise, efficiency and install.

Window vs portable Mini-split vs portable

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Olimpia Splendid

Dolceclima Compact (8 P)

Compact Italian-made single-hose monobloc with R290 refrigerant, EER 2.7 and energy class A. The Olimpia spec sheet and Geizhals both confirm 2.1 kW nominal cooling (8,000 BTU/h marketing label), not the A+ class previously recorded.

Cooling

2.1 kW