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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 5.2 kW · cooling and heating

Konsi KN-LC-18CS-4A

A++

Uses less electricity than 9% of the 5,158 split air conditioners, 4–5 kW on the EU register. At your selected price (European Union) that is €85 a year, €850 over ten years.

Cooling, SEER
6.3
Typical 6.8
Heating, SCOP
4.0
Typical 4.1
Cooling cost
€85 / year
+€426 if you also heat with it (average climate)

Uses more than most comparable models: 91 % of them need less. Rotenso LEP35Xi R16 / LOP35Xo R16, the most efficient alternative on sale, saves about €48 a year. Class A++ is the most common class in this group (69% of models). Heating efficiency (SCOP 4.0) is below the typical 4.1 of its group. Konsi has 11 models in this group; this one is number 10 among them.

Where it stands

Rank 4,627 of 5,158 split air conditioners, 4–5 kW by yearly consumption. 4,626 use less.

Median 254 This model · 300 100 850 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Elco DUAL 50 RIGEON ECO_IDU 12+18 300 kWh same
  2. A++ Rossato 5112110 300 kWh same
  3. A++ Konsi KN-LC-18CS-4A 300 kWh
  4. A++ Buderus 7733702504 300 kWh same
  5. A++ Elco (2x) RIGEON 25 IDU x RIGEON DUAL 50 ODU 300 kWh same
See the full ranking

What it will cost you

Period KN-LC-18CS-4A LEP35Xi R16 / LOP35Xo R16 Difference
1 year €85 €37 −€48
5 years €425 €185 −€239
10 years €850 €371 −€479
15 years €1,274 €556 −€718

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 300 kWh / yr
Heating, average climate 1,505 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++ Konsi KN-LC-18CS-4A (this model)
5.2 kW6.3 300 — —
5.1 kW9.4 131 €48 €479
5.3 kW7.0 132 €48 €476
5.3 kW7.0 132 €48 €476
5.8 kW2.5 151 €42 €422
5.8 kW2.5 151 €42 €422

Label and product sheet

Energy class cooling / heating
A++ / A+
SEER
6.3
SCOP warmer / average / colder
– / 4.0 / –
Cooling design load
5.2 kW
Heating design load (average)
4.2 kW
Yearly cooling
300 kWh
Yearly heating (average climate)
1,505 kWh
Sound power indoor / outdoor
53 / 62 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by Konsi under one model number.

KN-LC-18CS-4A

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

Questions

How much does the Konsi KN-LC-18CS-4A cost to run?

At one cooling season as on the label it uses about 300 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €85 a year, or €850 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 6.3 and SCOP 4.0 in the average climate: higher is better.