How loud is the Pro Breeze 12000 BTU 4-in-1 Smart (with heating)?

54 dB(A) indoors, about as loud as a dishwasher.

What size room does the Pro Breeze 12000 BTU 4-in-1 Smart (with heating) cool?

It is rated to cool a room 25–30 m² (3.5 kW · 12,000 BTU).

Do I need a professional to install the Pro Breeze 12000 BTU 4-in-1 Smart (with heating)?

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

Does the Pro Breeze 12000 BTU 4-in-1 Smart (with heating) heat as well as cool?

Yes. It also heats, rated 2.6 kW.

Portable monoblocA Heats too

Pro Breeze

12000 BTU 4-in-1 Smart (with heating)

Name: Pro Breeze 12000 BTU 4-in-1 Smart (with heating)
Brand: Pro Breeze

A feature-packed smart 12K portable with cooling, heating, dehumidifying and fan modes, plus app and voice control. It is a strong all-rounder for a room you want to manage from your phone.

€599

List price

approx EUR equivalent of GBP 519-720; 4-in-1 cool, heat, dehumidify, fan

No live retailer link for this model right now.

Performance

Cooling capacity: 3.5 kW · 12,000 BTU
Heating capacity: 2.6 kW
Room coverage: 25–30 m²
SEER (cooling): Not published
SCOP (heating): Not published
Energy class (cooling): A
Energy class (heating): Not published
Annual energy (cooling): Not published

Noise, size & features

Indoor noise

What is good

Four modes including heating, so it works year-round
Smart app plus Alexa and Google Home voice control
Class A efficiency with eco R290 refrigerant
Reasonably quiet for a 12K unit at around 54 dB

What to watch

Single-hose, so cooling efficiency falls in very hot rooms
Heavy at nearly 30 kg
Premium pricing, and frequently out of stock
Heating is electric-resistance assisted, not a full heat pump

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 Pro Breeze 12000 BTU 4-in-1 Smart (with heating)

How loud is the Pro Breeze 12000 BTU 4-in-1 Smart (with heating)?: 54 dB(A) indoors, about as loud as a dishwasher.
How energy-efficient is the Pro Breeze 12000 BTU 4-in-1 Smart (with heating)?: Its efficiency rating is A.
What size room does the Pro Breeze 12000 BTU 4-in-1 Smart (with heating) cool?: It is rated to cool a room 25–30 m² (3.5 kW · 12,000 BTU).
Do I need a professional to install the Pro Breeze 12000 BTU 4-in-1 Smart (with heating)?: No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.
Does the Pro Breeze 12000 BTU 4-in-1 Smart (with heating) heat as well as cool?: Yes. It also heats, rated 2.6 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