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Comparison Bosch SMV 4ECX23E vs Bosch SMV 4ECX21E

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Bosch SMV 4ECX23E
Bosch SMV 4ECX21E
Bosch SMV 4ECX23EBosch SMV 4ECX21E
Outdated ProductOutdated Product
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Type of instalationfully integratedfully integrated
Number of place settings1414
Water consumption9 L9 L
Dryer typecondenserwith heat exchanger
Auto door opening
 /EfficientDry/
Cutlery tray
Inverter motor
 /EcoSilence Drive/
 /EcoSilence Drive/
Energy class (new)CB
Noise level40 dB42 dB
Noise classBB
Washing functions
Number of programmes66
Washing modes
custom programme
half load
pre-rinse
automatic /45 – 65 °C/
eco /50 °C/
intensive /70 °C/
quiet /50 °C/
self-cleaning
60 minutes /65 °C/
custom programme
half load
pre-rinse
automatic /45 – 65 °C/
eco /50 °C/
intensive /70 °C/
quiet /50 °C/
self-cleaning
60 minutes /65 °C/
3-in-1 tablets use
More features
Delayed start timer
End-of-cycle signal
Beam on floor++
Salt indicator
Rinse aid indicator
Leak protection
Hot water supply
Upper basket adjustment
More specs
Controlspush-buttonspush-buttons
Control via Internet
 /Home Connect/
DisplayLEDLED
Dimensions (HxWxD)81.5x59.8x55 cm81.5x59.8x55 cm
Cut-out height815 mm815 mm
Cut-out width600 mm600 mm
Cut-out depth550 mm550 mm
Added to E-Catalogoctober 2023october 2023

Dryer type

The dishwasher has a drying function. Drying can occur both due to the natural evaporation of water from the surface of the dishes (condensation drying), and due to its blowing with heated air; the first option is more economical, since it does not require energy and there is also an improved one — with a heat exchanger; the second, in turn, provides faster drying. The recently introduced new type of Zeolith drying combines two methods, as it first collects residual moisture and then converts it into heat, which dries the dishes and belongs to premium segment models. Note that not all dishwashers are capable of drying dishes to dryness; see drying class for details.

Energy class (new)

This parameter characterizes the efficiency of electricity consumption by a dishwasher. Classes are denotet in Latin letters from A to G, in ascending order of energy consumption. Actually, more energy-efficient models have not been added to the A class, which eventually received the marking A +, A ++, A +++. Further development of technology has made it possible to go even further, and in order not to produce pluses in energy efficiency marking, manufacturers returned to the previous indices from G to A in March 2021, where А is the most energy efficient dishwasher. But also class B, C, D and even E are also quite economical (no worse than A +++). Accordingly, the 2021 models will have modern markings, while older models will be marked in the same way.

Noise level

The approximate noise level produced by the dishwasher during operation. In modern models, this parameter can range from 37 – 39 dB (muffled human voice) to 59 – 60 dB (loud conversation); more detailed decoding of what sound corresponds to a particular number of decibels can be found in special tables. Anyway, the low noise level contributes to the comfortable use of the device. It is especially important if the dishwasher is to be used at night (for example, if there are reduced electricity rates at night).
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