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A+

Panasonic CS-E21RB4EAW / CU-E21RBEA

Air conditioner · model CS-E21RB4EAW / CU-E21RBEA · on the market since 1 December 2014

Estimated running cost, EU average price
€105 a year
369 kWh/year · €1,045 over 10 years at today’s prices
+€17a year vs the average comparable model

Annual cooling consumption as declared on the EU energy label (standard cooling season). Prices: Eurostat household electricity prices incl. taxes, 2026 (Jan–Jun), consumption band 2,500–4,999 kWh.

Running cost in every country (39)
Country€/kWhPer year10 years
Albania0.119€44€439
Austria0.326€120€1,203
Belgium0.358€132€1,319
Bosnia and Herzegovina0.1€37€367
Bulgaria0.134€49€495
Croatia0.182€67€670
Cyprus0.269€99€992
Czechia0.288€106€1,064
Denmark0.238€88€876
Estonia0.212€78€782
Finland0.269€99€994
France0.249€92€917
Georgia0.073€27€270
Germany0.362€134€1,335
Greece0.24€89€886
Hungary0.114€42€420
Iceland0.202€75€745
Ireland0.387€143€1,428
Italy0.314€116€1,159
Kosovo0.087€32€321
Latvia0.242€89€891
Liechtenstein0.299€110€1,103
Lithuania0.216€80€798
Luxembourg0.202€75€746
Malta0.127€47€468
Moldova0.187€69€691
Montenegro0.104€38€383
Netherlands0.244€90€900
North Macedonia0.117€43€431
Norway0.199€74€735
Poland0.3€111€1,107
Portugal0.237€87€873
Romania0.284€105€1,046
Serbia0.12€44€442
Slovakia0.199€73€732
Slovenia0.212€78€782
Spain0.251€93€926
Sweden0.306€113€1,130
Türkiye0.066€24€242

How it compares

Compared with 4,451 air conditioners, 5.1–7 kW on the EU register:

3,665 comparable models use less energy. The typical model in this group uses 309 kWh a year; most use between 218 and 405. See the full ranking.

Energy label values

Energy efficiency classA+ on the A–G scale
Functioncooling and heating
Cooling capacity5.9 kW
Heating capacity4 kW
SEER (cooling)5.6
SCOP (heating, average climate)4.1
Annual cooling consumption369 kWh
Annual heating consumption (average climate)1,366 kWh
Heating classAP
Indoor noise58 dB(A)
Outdoor noise63 dB(A)
RefrigerantR410A
Refrigerant GWP2,088

Lifespan & repair

Registration history

Comparable air conditioners from other brands

  1. A++
    Toyotomi NTN-971R32/NTG-971R32
    6.7 kW · SEER 6.4 · 369 kWh/yr
    €105/year
  2. A++
    Baxi Spa 7690473 - U.E. MONO 24000 LSGT70-S R32
    6.7 kW · SEER 6.3 · 369 kWh/yr
    €105/year
  3. A++
    De Dietrich 7695155 - ESM 70
    6.7 kW · SEER 6.4 · 369 kWh/yr
    €105/year
  4. A+
    €105/year
  5. A++
    Daikin FAA100AUVEB / RZAG71M7V1B
    6.8 kW · SEER 6.4 · 370 kWh/yr
    €105/year
  6. A++
    Daikin FAA100AUVEB / RZAG71N7V1B
    6.8 kW · SEER 6.4 · 370 kWh/yr
    €105/year

Source: EU energy label register (EPREL), registration 36650. Values are as declared by the supplier. YearlyCost is not affiliated with the European Commission or Panasonic.