EnergyLabelEU
EN
Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 12.2 kW · cooling and heating

Ariston PENTA 121 DUC R32_U-I N 9+9+12+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 €364 a year, €3,636 over ten years.

Cooling, SEER
5.7
Typical 6.9
Heating, SCOP
3.5
Typical 4.1
Cooling cost
€364 / year
+€1,090 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 €280 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 293 among them.

Where it stands

Rank 14,262 of 14,301 split air conditioners, 6 kW and over by yearly consumption. 14,261 use less.

Median 402 This model · 1,284 0 1,700 kWh ← uses less · uses more →

Next to it in the ranking

  1. A+ Ariston PENTA 121 ALYS NET_UA1-I 9+9+12+12 1,284 kWh same
  2. A+ Ariston PENTA 121 PRIOS NET_UA1-I 9+9+12+12 1,284 kWh same
  3. A+ Ariston PENTA 121 DUC R32_U-I N 9+9+12+12 1,284 kWh
  4. A+ Elco PENTA 121 RIGEON ECO_IDU 9+9+12+12 1,284 kWh same
  5. A+ Ariston PENTA 121 ALYS NET_UA1-I 9+12+12+12 1,290 kWh +€1.70
See the full ranking

What it will cost you

Period PENTA 121 DUC R32_U-I N 9+9+12+12 IQOOL-4MS12K12K12K12K Difference
1 year €364 €83 −€280
5 years €1,818 €416 −€1,402
10 years €3,636 €833 −€2,804
15 years €5,454 €1,249 −€4,206

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 1,284 kWh / yr
Heating, average climate 3,850 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 5.0 2,900
Average (e.g. Strasbourg) 3.5 3,850
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+12+12 (this model)
12.2 kW5.7 1,284 — —
A++ electriQ IQOOL-4MS12K12K12K12K compare
12.2 kW6.1 294 €280 €2,804
A++ Hisense AUD125UX4REH8 / AUW125U4RW8 compare
12.1 kW7.5 565 €204 €2,036
A++ Hisense AUC125UR4RKC8 / AUW125U4RW8 compare
12.1 kW7.5 565 €204 €2,036
A++ Gree GWHD(42)NK6QO+GWH18AGD-K6DNA1E/I+GWH24AGEXF-K6DNA4A/I compare
11.8 kW7.2 574 €201 €2,011
A++ Hitachi RAS-5HVRC2E - RPIH-5.0FSRE compare
11.9 kW7.1 590 €197 €1,965

Label and product sheet

Energy class cooling / heating
A+ / A
SEER
5.7
SCOP warmer / average / colder
5.0 / 3.5 / –
Cooling design load
12.2 kW
Heating design load (average)
9.5 kW
Yearly cooling
1,284 kWh
Yearly heating (average climate)
3,850 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+12+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+12+12 cost to run?

At one cooling season as on the label it uses about 1,284 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €364 a year, or €3,636 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 5.7 and SCOP 3.5 in the average climate: higher is better.