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

Split air conditioners · 5.0 kW · cooling and heating

Ariston (2X) ZENUS UD0-Ix2 DUAL 55 XD0B-O

A+

Uses less electricity than 3% of the 5,158 split air conditioners, 4–5 kW on the EU register. At your selected price (European Union) that is €89 a year, €892 over ten years.

Cooling, SEER
5.6
Typical 6.8
Heating, SCOP
3.8
Typical 4.1
Cooling cost
€89 / year
+€462 if you also heat with it (average climate)

Uses more than most comparable models: 97 % of them need less. Rotenso LEP35Xi R16 / LOP35Xo R16, the most efficient alternative on sale, saves about €52 a year. 90% of comparable models reach a better class than A+; the most common is A++. Heating efficiency (SCOP 3.8) is below the typical 4.1 of its group. Ariston has 140 models in this group; this one is number 135 among them. Ariston sells the same label values under other model names: (2X) ALYS PLUS UD0-Ix2 DUAL 55 XD0B-O, (2X) PRIOS UD0-Ix2 DUAL 55 XD0B-O. On the register since 2019 and still on sale.

Where it stands

Rank 4,986 of 5,158 split air conditioners, 4–5 kW by yearly consumption. 4,985 use less.

Median 254 This model · 315 100 850 kWh ← uses less · uses more →

Next to it in the ranking

  1. A+ Ariston (2X) ALYS PLUS UD0-Ix2 DUAL 55 XD0B-O 315 kWh same
  2. A+ Ariston (2X) PRIOS UD0-Ix2 DUAL 55 XD0B-O 315 kWh same
  3. A+ Ariston (2X) ZENUS UD0-Ix2 DUAL 55 XD0B-O 315 kWh
  4. A Hitachi RAM-53NP2A / RAK-18QXA + RAF-35RPA 315 kWh same
  5. A Hitachi RAM-53NP3A / RAK-18QXA + RAF-35RPA 315 kWh same
See the full ranking

What it will cost you

Period (2X) ZENUS UD0-Ix2 DUAL 55 XD0B-O LEP35Xi R16 / LOP35Xo R16 Difference
1 year €89 €37 −€52
5 years €446 €185 −€261
10 years €892 €371 −€521
15 years €1,338 €556 −€782

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 315 kWh / yr
Heating, average climate 1,631 kWh / yr

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 (2X) ZENUS UD0-Ix2 DUAL 55 XD0B-O (this model)
5.0 kW5.6 315 — —
5.1 kW9.4 131 €52 €521
5.3 kW7.0 132 €52 €518
5.3 kW7.0 132 €52 €518
4.5 kW9.1 174 €40 €399
4.5 kW8.7 181 €38 €379

Label and product sheet

Energy class cooling / heating
A+ / A
SEER
5.6
SCOP warmer / average / colder
– / 3.8 / –
Cooling design load
5.0 kW
Heating design load (average)
4.4 kW
Yearly cooling
315 kWh
Yearly heating (average climate)
1,631 kWh
Sound power indoor / outdoor
52 / 65 dB(A)
Refrigerant
R410A (GWP 2088)

Model numbers and history

Registered by Ariston under one model number.

(2X) ZENUS UD0-Ix2 DUAL 55 XD0B-O

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

Questions

How much does the Ariston (2X) ZENUS UD0-Ix2 DUAL 55 XD0B-O cost to run?

At one cooling season as on the label it uses about 315 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €89 a year, or €892 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 5.6 and SCOP 3.8 in the average climate: higher is better.