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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 3.5 kW · cooling and heating

Diplomat DAH-120ECOSmart

A+++

Uses less electricity than 75% of the 3,067 split air conditioners, 3 kW on the EU register. At your selected price (European Union) that is €41 a year, €411 over ten years.

Cooling, SEER
8.5
Typical 6.5
Heating, SCOP
4.6
Typical 4.1
Cooling cost
€41 / year
+€224 if you also heat with it (average climate)

In the most efficient quarter of its group: 21 % below the typical 184 kWh. Class A+++ is the best class any model in this group reaches. Heating efficiency (SCOP 4.6) is above the typical 4.1 of its group. Of 10 Diplomat models in this group, it is the most efficient.

Where it stands

Rank 590 of 3,067 split air conditioners, 3 kW by yearly consumption. 589 use less.

Median 184 This model · 145 0 450 kWh ← uses less · uses more →

Next to it in the ranking

  1. A+++ Tesla TT34TP81-1232IHWT 145 kWh same
  2. A+++ Rotenso TA35Xi R16/TO35Xo R16 145 kWh same
  3. A+++ Diplomat DAH-120ECOSmart 145 kWh
  4. A+++ R-4Living HP A-A 12K 145 kWh same
  5. A+++ Bosch 7733701679 145 kWh same
See the full ranking

What it will cost you

Period DAH-120ECOSmart NF-ST30CR Difference
1 year €41 €1 −€40
5 years €205 €4 −€201
10 years €411 €8 −€402
15 years €616 €13 −€603

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 145 kWh / yr
Heating, average climate 792 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 5.6 825
Average (e.g. Strasbourg) 4.6 792
Colder (e.g. Helsinki) 3.4 2,162

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+++ Diplomat DAH-120ECOSmart (this model)
3.5 kW8.5 145 — —
3.0 kW50.0 3 €40 €402
3.0 kW9.3 102 €12 €122
3.0 kW8.8 103 €12 €119
3.0 kW8.8 103 €12 €119
3.0 kW9.0 112 €9 €93

Label and product sheet

Energy class cooling / heating
A+++ / A++
SEER
8.5
SCOP warmer / average / colder
5.6 / 4.6 / 3.4
Cooling design load
3.5 kW
Heating design load (average)
2.6 kW
Yearly cooling
145 kWh
Yearly heating (average climate)
792 kWh
Sound power indoor / outdoor
53 / 63 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by Diplomat under one model number.

DAH-120ECOSmart

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

Questions

How much does the Diplomat DAH-120ECOSmart cost to run?

At one cooling season as on the label it uses about 145 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €41 a year, or €411 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 8.5 and SCOP 4.6 in the average climate: higher is better.