EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 12.3 kW · cooling and heating

Kaisai KKO5-42RTA1

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 €308 a year, €3,076 over ten years.

Cooling, SEER
6.8
Typical 6.9
Heating, SCOP
4.3
Typical 4.1
Cooling cost
€308 / year
+€848 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 €224 a year. Class A++ is the most common class in this group (80% of models). Heating efficiency (SCOP 4.3) is above the typical 4.1 of its group. Of 42 Kaisai models in this group, it ranks last. Registered in Aug 2026, one of the newer models in its group.

Where it stands

Rank 14,207 of 14,301 split air conditioners, 6 kW and over by yearly consumption. 14,206 use less.

Median 402 This model · 1,086 0 1,700 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Elco PENTA 121 RIGEON PRO_IDU 18+24 1,031 kWh −€15.58
  2. A++ Ariston (5x) NEVIS PLUS R32 25 UD0-Ix PENTA 121 XD0C-O 1,045 kWh −€11.61
  3. A++ Kaisai KKO5-42RTA1 1,086 kWh
  4. A++ Terma Air GELIDA V42 1,086 kWh same
  5. A+ Ariston PENTA 121 ALYS NET_UA1-I 9+9+9+9+12 1,226 kWh +€39.65
See the full ranking

What it will cost you

Period KKO5-42RTA1 IQOOL-4MS12K12K12K12K Difference
1 year €308 €83 −€224
5 years €1,538 €416 −€1,121
10 years €3,076 €833 −€2,243
15 years €4,613 €1,249 −€3,364

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 1,086 kWh / yr
Heating, average climate 2,996 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++ Kaisai KKO5-42RTA1 (this model)
12.3 kW6.8 1,086 — —
12.2 kW6.1 294 €224 €2,243
12.1 kW7.5 565 €148 €1,475
12.1 kW7.5 565 €148 €1,475
11.8 kW7.2 574 €145 €1,450
11.9 kW7.1 590 €140 €1,405

Label and product sheet

Energy class cooling / heating
A++ / A+
SEER
6.8
SCOP warmer / average / colder
– / 4.3 / –
Cooling design load
12.3 kW
Heating design load (average)
9.2 kW
Yearly cooling
1,086 kWh
Yearly heating (average climate)
2,996 kWh
Sound power indoor / outdoor
53 / 70 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by Kaisai under one model number.

KKO5-42RTA1

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

Questions

How much does the Kaisai KKO5-42RTA1 cost to run?

At one cooling season as on the label it uses about 1,086 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €308 a year, or €3,076 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 6.8 and SCOP 4.3 in the average climate: higher is better.