EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Portable air conditioners · 3.4 kW · cooling and heating

ONE Clima ONEPRO12/Y24

A++

Uses less electricity than 91% of the 848 portable air conditioners, 3 kW on the EU register. At your selected price (European Union) that is €109 a year, €1,090 over ten years.

EER
3.2
Running cost
€109 / year
350 cooling hours
Per hour
€0.31
1.10 kWh

In the most efficient quarter of its group: 15 % below the typical 455 kWh. Class A++ is the best class any model in this group reaches, and only 1% of them do. Of 2 ONE Clima models in this group, it ranks last.

Where it stands

Rank 41 of 848 portable air conditioners, 3 kW by yearly consumption. 40 use less.

Median 455 This model · 385 250 750 kWh ← uses less · uses more →

Next to it in the ranking

  1. A+ Rowenta RWAC12KA++ 385 kWh same
  2. A+ Rowenta RWACK12KA++ 385 kWh same
  3. A++ ONE Clima ONEPRO12/Y24 385 kWh
  4. A Aspes AAAP1200B 385 kWh same
  5. A+ Woods AC Cortina Silent 12K WiFi A+ 385 kWh same
See the full ranking

What it will cost you

Period ONEPRO12/Y24 HAAC-36 Difference
1 year €109 €79 −€30
5 years €545 €396 −€149
10 years €1,090 €793 −€297
15 years €1,635 €1,189 −€446

Is the more efficient model worth its price?

Years of use

Enter both purchase prices to see the total cost of ownership.

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model CoolingSEER kWh / yr Saves / year in 10 years
A++ ONE Clima ONEPRO12/Y24 (this model)
3.4 kW— 385 — —
3.5 kW— 280 €30 €297
3.0 kW— 315 €20 €198
3.5 kW— 315 €20 €198
3.2 kW— 315 €20 €198

Label and product sheet

Energy class cooling / heating
A++ / A+
EER
3.2
Cooling design load
3.4 kW
Sound power indoor / outdoor
50 / 60 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by ONE Clima under one model number.

ONEPRO12/Y24

  1. Placed on the EU market
  2. First published in the EU register (EPREL)

Questions

How much does the ONE Clima ONEPRO12/Y24 cost to run?

At 350 cooling hours a year it uses about 385 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €109 a year, or €1,090 over ten years.