EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 12.4 kW · cooling and heating

Ariston PENTA 121 DUC R32_U-I N 9+9+9+9+12

A+

Uses less electricity than 0% of the 14,301 split air conditioners, 6 kW and over on the EU register. At your selected price (European Union) that is €347 a year, €3,472 over ten years.

Cooling, SEER
6.1
Typical 6.9
Heating, SCOP
3.5
Typical 4.1
Cooling cost
€347 / year
+€1,068 if you also heat with it (average climate)

Uses more than most comparable models: 100 % of them need less. electriQ IQOOL-4MS12K12K12K12K, the most efficient alternative on sale, saves about €264 a year. 83% of comparable models reach a better class than A+; the most common is A++. Heating efficiency (SCOP 3.5) is below the typical 4.1 of its group. Ariston has 316 models in this group; this one is number 254 among them.

Where it stands

Rank 14,209 of 14,301 split air conditioners, 6 kW and over by yearly consumption. 14,208 use less.

Median 402 This model · 1,226 0 1,700 kWh ← uses less · uses more →

Next to it in the ranking

  1. A+ Ariston PENTA 121 PRIOS NET_UA1-I 9+9+9+9+12 1,226 kWh same
  2. A+ Elco PENTA 121 RIGEON ECO_IDU 9+9+9+9+12 1,226 kWh same
  3. A+ Ariston PENTA 121 DUC R32_U-I N 9+9+9+9+12 1,226 kWh
  4. A+ Ariston PENTA 121 ALYS NET_UA1-I 9+9+9+12+12 1,242 kWh +€4.53
  5. A+ Ariston PENTA 121 PRIOS NET_UA1-I 9+9+9+12+12 1,242 kWh +€4.53
See the full ranking

What it will cost you

Period PENTA 121 DUC R32_U-I N 9+9+9+9+12 IQOOL-4MS12K12K12K12K Difference
1 year €347 €83 −€264
5 years €1,736 €416 −€1,320
10 years €3,472 €833 −€2,639
15 years €5,208 €1,249 −€3,959

Is the more efficient model worth its price?

Years of use

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

Cooling and heating

Cooling season 1,226 kWh / yr
Heating, average climate 3,772 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 5.2 2,816
Average (e.g. Strasbourg) 3.5 3,772
Colder (e.g. Helsinki) — —

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+ Ariston PENTA 121 DUC R32_U-I N 9+9+9+9+12 (this model)
12.4 kW6.1 1,226 — —
A++ electriQ IQOOL-4MS12K12K12K12K compare
12.2 kW6.1 294 €264 €2,639
A++ Hisense AUD125UX4REH8 / AUW125U4RW8 compare
12.1 kW7.5 565 €187 €1,872
A++ Hisense AUC125UR4RKC8 / AUW125U4RW8 compare
12.1 kW7.5 565 €187 €1,872
A++ Gree GWHD(42)NK6QO+GWH18AGD-K6DNA1E/I+GWH24AGEXF-K6DNA4A/I compare
11.8 kW7.2 574 €185 €1,846
A++ Hitachi RAS-5HVRC2E - RPIH-5.0FSRE compare
11.9 kW7.1 590 €180 €1,801

Label and product sheet

Energy class cooling / heating
A+ / A
SEER
6.1
SCOP warmer / average / colder
5.2 / 3.5 / –
Cooling design load
12.4 kW
Heating design load (average)
9.5 kW
Yearly cooling
1,226 kWh
Yearly heating (average climate)
3,772 kWh
Sound power indoor / outdoor
52 / 69 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by Ariston under one model number.

PENTA 121 DUC R32_U-I N 9+9+9+9+12

  1. First published in the EU register (EPREL)
  2. Placed on the EU market
  3. Supplier changed publishedOnDate from 2026,10,13 to 2026,11,2

Questions

How much does the Ariston PENTA 121 DUC R32_U-I N 9+9+9+9+12 cost to run?

At one cooling season as on the label it uses about 1,226 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €347 a year, or €3,472 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 6.1 and SCOP 3.5 in the average climate: higher is better.