Opal DUW221
Uses less electricity than 9% of the 3,067 split air conditioners, 3 kW on the EU register. At your selected price (European Union) that is €57 a year, €569 over ten years.
- Cooling, SEER
- 6.1
- Typical 6.5
- Heating, SCOP
- 4.0
- Typical 4.1
- Cooling cost
- €57 / year
- +€217 if you also heat with it (average climate)
Uses more than most comparable models: 91 % of them need less. Kadeer Electrical NF-ST30CR, the most efficient alternative on sale, saves about €56 a year. Class A++ is the most common class in this group (67% of models). Heating efficiency (SCOP 4.0) is below the typical 4.1 of its group. It is the only Opal model in this group. Registered in Oct 2026, one of the newer models in its group.
Where it stands
Rank 2,623 of 3,067 split air conditioners, 3 kW by yearly consumption. 2,622 use less.
Next to it in the ranking
- Daikin FNA50A2VEB9 / RZAG35A2V1B 201 kWh same
- Inventor ΝUVI-12WF/ΝUVO-12 201 kWh same
- Opal DUW221 201 kWh
- Mitsubishi Electric SEZ-M35DA3-ET / SUZ-M35VA2-ET 202 kWh +€0.28
- Mitsubishi Electric SEZ-M35DA3 / SUZ-M35VA2 202 kWh +€0.28
What it will cost you
| Period | DUW221 | NF-ST30CR | Difference |
|---|---|---|---|
| 1 year | €57 | €1 | −€56 |
| 5 years | €285 | €4 | −€280 |
| 10 years | €569 | €8 | −€561 |
| 15 years | €854 | €13 | −€841 |
Is the more efficient model worth its price?
Enter both purchase prices to see the total cost of ownership.
Cooling and heating
Same size, lower running cost
On sale, at least 10% less energy, same size group
| Model | kWh / yr | Saves / year |
|---|---|---|
| Opal DUW221 (this model) | 201 | — |
| 3 | €56 | |
| 102 | €28 | |
| 103 | €28 | |
| 103 | €28 | |
| 112 | €25 |
Label and product sheet
- Energy class cooling / heating
- A++ / A+
- SEER
- 6.1
- SCOP warmer / average / colder
- – / 4.0 / –
- Cooling design load
- 3.5 kW
- Heating design load (average)
- 2.2 kW
- Yearly cooling
- 201 kWh
- Yearly heating (average climate)
- 767 kWh
- Sound power indoor / outdoor
- 59 / 65 dB(A)
- Refrigerant
- R290 (GWP 3)
Model numbers and history
Registered by Opal under one model number.
DUW221
- Placed on the EU market
- First published in the EU register (EPREL)
- Supplier changed publishedOnDate from 2026,10,29 to 2026,11,2
- Supplier changed heatingEnergyClass from APP to AP
- Supplier changed heatingCharacteristics from [object Object] to [object Object]
Questions
How much does the Opal DUW221 cost to run?
At one cooling season as on the label it uses about 201 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €57 a year, or €569 over ten years.
What do SEER and SCOP mean?
This model reaches SEER 6.1 and SCOP 4.0 in the average climate: higher is better.