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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 1.3 kW · cooling and heating

OK OAC 3251 ES

A
Cooling, SEER
2.6
Typical 6.9
Heating, SCOP
1.4
Typical 4.1
Cooling cost
€0.28 / year
+€2,832 if you also heat with it (average climate)

96% of comparable models reach a better class than A; the most common is A++. Heating efficiency (SCOP 1.4) is below the typical 4.1 of its group. On the register since 2021 and still on sale.

What it will cost you

Period OAC 3251 ES
1 year €0
5 years €1
10 years €3
15 years €4

Cooling and heating

Cooling season 1 kWh / yr
Heating, average climate 9,999 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 1.4 3,066
Average (e.g. Strasbourg) 1.4 9,999
Colder (e.g. Helsinki) 1.4 3,066

Label and product sheet

Energy class cooling / heating
A / A
SEER
2.6
SCOP warmer / average / colder
1.4 / 1.4 / 1.4
Cooling design load
1.3 kW
Heating design load (average)
1.3 kW
Yearly cooling
1 kWh
Yearly heating (average climate)
9,999 kWh
Sound power indoor / outdoor
63 / 65 dB(A)
Refrigerant
R290 (GWP 3)

Model numbers and history

Registered by ok under one model number.

OAC 3251 ES

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

Questions

How much does the OK OAC 3251 ES cost to run?

At one cooling season as on the label it uses about 1 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €0 a year, or €3 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 2.6 and SCOP 1.4 in the average climate: higher is better.