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Costs for 0.283 €/kWh · Eurostat 2026 H1

Split air conditioners · 5.3 kW · cooling and heating

Mill Compact Pro WiFi 7400 Heat Pump

A++

Uses less electricity than 53% of the 5,158 split air conditioners, 4–5 kW on the EU register. At your selected price (European Union) that is €70 a year, €700 over ten years.

Cooling, SEER
7.5
Typical 6.8
Heating, SCOP
4.3
Typical 4.1
Cooling cost
€70 / year
+€396 if you also heat with it (average climate)

Near the middle of its group: 3 % below the typical 254 kWh. Class A++ is the most common class in this group (69% of models). Heating efficiency (SCOP 4.3) is above the typical 4.1 of its group. It is the only Mill model in this group.

Where it stands

Rank 2,265 of 5,158 split air conditioners, 4–5 kW by yearly consumption. 2,264 use less.

Median 254 This model · 247 100 850 kWh ← uses less · uses more →

Next to it in the ranking

  1. A++ Nobu NBKU2VI32-18WFRB/NBKU2VO32-18B 247 kWh same
  2. A++ Nobu NBKU3VI-18WFI/NBKU3VO-18 247 kWh same
  3. A++ Mill Compact Pro WiFi 7400 Heat Pump 247 kWh
  4. A++ HTWS052IX39B5-R32 247 kWh same
  5. A++ HTWS052IX21D5-R32 247 kWh same
See the full ranking

What it will cost you

Period Mill Compact Pro WiFi 7400 Heat Pump LEP35Xi R16 / LOP35Xo R16 Difference
1 year €70 €37 −€33
5 years €350 €185 −€164
10 years €700 €371 −€329
15 years €1,049 €556 −€493

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 247 kWh / yr
Heating, average climate 1,400 kWh / yr

Heating by climate zone

Climate SCOP kWh / yr
Warmer (e.g. Athens) 5.7 1,154
Average (e.g. Strasbourg) 4.3 1,400
Colder (e.g. Helsinki) 3.5 3,600

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++ Mill Compact Pro WiFi 7400 Heat Pump (this model)
5.3 kW7.5 247 — —
5.1 kW9.4 131 €33 €329
5.3 kW7.0 132 €33 €326
5.3 kW7.0 132 €33 €326
5.8 kW2.5 151 €27 €272
5.8 kW2.5 151 €27 €272

Label and product sheet

Energy class cooling / heating
A++ / A+
SEER
7.5
SCOP warmer / average / colder
5.7 / 4.3 / 3.5
Cooling design load
5.3 kW
Heating design load (average)
4.3 kW
Yearly cooling
247 kWh
Yearly heating (average climate)
1,400 kWh
Sound power indoor / outdoor
60 / 65 dB(A)
Refrigerant
R32 (GWP 675)

Model numbers and history

Registered by Mill under one model number.

Mill Compact Pro WiFi 7400 Heat Pump

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

Questions

How much does the Mill Compact Pro WiFi 7400 Heat Pump cost to run?

At one cooling season as on the label it uses about 247 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €70 a year, or €700 over ten years.

What do SEER and SCOP mean?

This model reaches SEER 7.5 and SCOP 4.3 in the average climate: higher is better.