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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 4.1 kW · cooling and heating

Rotenso T21Xi R15*2/H40Xm2 R15

A++

Uses less electricity than 66% of the 5,158 split air conditioners, 4–5 kW on the EU register. At your selected price (European Union) that is €65 a year, €646 over ten years.

Cooling, SEER
6.3
Typical 6.8
Heating, SCOP
3.8
Typical 4.1
Cooling cost
€65 / year
+€407 if you also heat with it (average climate)

Near the middle of its group: 10 % below the typical 254 kWh. Class A++ is the most common class in this group (69% of models). Heating efficiency (SCOP 3.8) is below the typical 4.1 of its group. Rotenso has 78 models in this group; this one is number 14 among them.

Where it stands

Rank 1,712 of 5,158 split air conditioners, 4–5 kW by yearly consumption. 1,711 use less.

Median 254 This model · 228 100 850 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Daikin FDXM25F3V1B9 / FDXM35F3V1B9 / 2MXM40A2V1B 228 kWh same
  2. A++ Daikin FDXM25F3V1B9 / FDXM35F3V1B9 / 2MXM40N2V1B9 228 kWh same
  3. A++ Rotenso T21Xi R15*2/H40Xm2 R15 228 kWh
  4. A++ Daikin ATXF42C5V1B / ARXF42C5V1B 228 kWh same
  5. A++ Daikin FDXM25F3V1B9 / FDXM35F3V1B9 / 2MXM40M4V1B 228 kWh same
See the full ranking

What it will cost you

Period T21Xi R15*2/H40Xm2 R15 7733704026 Difference
1 year €65 €41 −€24
5 years €323 €204 −€119
10 years €646 €408 −€238
15 years €969 €612 −€357

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 228 kWh / yr
Heating, average climate 1,437 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 5.1 1,125
Average (e.g. Strasbourg) 3.8 1,437
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++ Rotenso T21Xi R15*2/H40Xm2 R15 (this model)
4.1 kW6.3 228 — —
4.0 kW8.5 144 €24 €238
4.0 kW8.5 144 €24 €238
4.1 kW2.6 145 €24 €235
4.2 kW9.9 148 €23 €227
4.2 kW9.9 148 €23 €227

Label and product sheet

Energy class cooling / heating
A++ / A
SEER
6.3
SCOP warmer / average / colder
5.1 / 3.8 / –
Cooling design load
4.1 kW
Heating design load (average)
3.9 kW
Yearly cooling
228 kWh
Yearly heating (average climate)
1,437 kWh
Sound power indoor / outdoor
55 / 65 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by Rotenso under one model number.

T21Xi R15*2/H40Xm2 R15

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

Questions

How much does the Rotenso T21Xi R15*2/H40Xm2 R15 cost to run?

At one cooling season as on the label it uses about 228 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €65 a year, or €646 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 6.3 and SCOP 3.8 in the average climate: higher is better.