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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 5.0 kW · cooling and heating

LG P18SND NS21 / P18SND U181

A++

Uses less electricity than 52% of the 5,158 split air conditioners, 4–5 kW on the EU register. At your selected price (European Union) that is €71 a year, €708 over ten years.

Cooling, SEER
7.0
Typical 6.8
Heating, SCOP
4.6
Typical 4.1
Cooling cost
€71 / year
+€336 if you also heat with it (average climate)

Near the middle of its group: 2 % below the typical 254 kWh. Class A++ is the most common class in this group (69% of models). Heating efficiency (SCOP 4.6) is above the typical 4.1 of its group. LG has 68 models in this group; this one is number 21 among them. Registered in Sept 2026, one of the newer models in its group.

Where it stands

Rank 2,395 of 5,158 split air conditioners, 4–5 kW by yearly consumption. 2,394 use less.

Median 254 This model · 250 100 850 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Daikin FHA60AVEB99 / RZAG50A2V1B 249 kWh −€0.28
  2. A++ Daikin FHA60AVEB9 / RZAG50A2V1B 249 kWh −€0.28
  3. A++ LG P18SND NS21 / P18SND U181 250 kWh
  4. A++ LG EZ18CYU CL21 / EZ18CYN CSK1 250 kWh same
  5. A++ LG EZ18CYU AL21 / EZ18CYN ASK1 250 kWh same
See the full ranking

What it will cost you

Period P18SND NS21 / P18SND U181 LEP35Xi R16 / LOP35Xo R16 Difference
1 year €71 €37 −€34
5 years €354 €185 −€169
10 years €708 €371 −€337
15 years €1,062 €556 −€506

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 250 kWh / yr
Heating, average climate 1,187 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 5.6 525
Average (e.g. Strasbourg) 4.6 1,187
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++ LG P18SND NS21 / P18SND U181 (this model)
5.0 kW7.0 250 — —
5.1 kW9.4 131 €34 €337
5.3 kW7.0 132 €33 €334
5.3 kW7.0 132 €33 €334
4.5 kW9.1 174 €22 €215
4.5 kW8.7 181 €20 €195

Label and product sheet

Energy class cooling / heating
A++ / A++
SEER
7.0
SCOP warmer / average / colder
5.6 / 4.6 / –
Cooling design load
5.0 kW
Heating design load (average)
3.9 kW
Yearly cooling
250 kWh
Yearly heating (average climate)
1,187 kWh
Sound power indoor / outdoor
60 / 65 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by LG under one model number.

P18SND NS21 / P18SND U181

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

Questions

How much does the LG P18SND NS21 / P18SND U181 cost to run?

At one cooling season as on the label it uses about 250 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €71 a year, or €708 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 7.0 and SCOP 4.6 in the average climate: higher is better.