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
The energy efficiency class characterizes the the economy of a dishwasher's electricity consumption. Initially, the classes were denoted in Latin letters from A (high degree of economy) to G (high consumption). But later, with the development of energy saving technologies, more advanced classes than A appeared. They are denoted by the letter A with a certain number of pluses (
A+,
A++, etc.); the more benefits, the higher the economy. Most modern built-in dishwashers comply with energy classes from A to
A+++(the last is 30% more economical than the original class A). More high consumption models, such as classes B and C, are much rarer and gradually disappear.
More economical models cost more, but the difference can be recouped in energy savings. Also note that the energy consumption class does not describe efficiency in general, but in comparison with other similar models; therefore, the actual consumption of a small class A device may be lower than that of a large class A++ model.
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).
Number of programmes
The number of washing programs (modes) provided in the dishwasher. These programs may differ in duration, exposure intensity, water temperature, dish material (for example for delicate dishes), etc. For more information on the different options, see "Washing programs". And the more modes — the more advanced the device is, the more options it provides to choose from. But note that with the same number of programs, their specific set in different models may be different; these details should be clarified separately.
Leak protection
Automatic system that controls the safe use of water by the dishwasher. In the event of a leak, the water supply is blocked, and collected water is drained, which prevents the “flood” in the house.
Leak protection can be applied to the body, to the water supply hoses, or to both (full protection). It is worth noting that hoses with leak protection can usually be purchased and installed separately if the device is not designed with any protection, or it only touches the body.
Chamber lighting
The presence of a
lighting system in the working chamber of the dishwasher.
Modern dishwashers have deep working chambers which can make it difficult to see the contents, even when the machine is installed in a brightly lit place. A proprietary lighting system solves this problem by improving visibility and doesn't depend on external light sources.
