Comparison Siemens WT 7U46E PL vs Bosch WTG 86401 PL

— Condensing (recuperative) The general principle of condensation drying is as follows: heated air is passed through the laundry drum, captures moisture, and then enters the refrigerator, cools down, and excess moisture condenses in a special tank. The advantage of all condensing machines over air vented ones is that they are easy to install. They do not need to be connected to ventilation and can be installed in any room. On the other hand, the user needs to monitor the condensate tank and periodically drain the accumulated water. And such units are somewhat more complicated and more expensive than ventilated ones. However, recuperative dryers are the simplest and most inexpensive among condensing dryers. By the name, the role of a refrigerator in them is played by a recuperator: a heat exchanger that dumps excess heat into the outside air. The heating of the air inside is usually carried out using a heating element. Due to their availability, such machines are very popular, but they have serious drawbacks. Firstly, devices of this type have high electricity consumption. Secondly, the efficiency of their work is relatively low. Moreover, it directly depends on the temperature difference between the air outside and inside the dryer.

— Condensing (heat pump drying). The most advanced and most expensive type of condensing dryer. See above for more information on conde...nsing drying in general. Note that in models of this type, the refrigerator operates due to a heat pump — a compressor that takes excess heat from the condensation chamber and transfers it to the heater. It provides several advantages over traditional recuperative drying. One of the most noticeable is high efficiency and economy: the heat pump allows you to reuse the accumulated thermal energy, and less electricity is spent on its operation than on the constant air heating in recuperative models. In addition, drying is easier and faster, and the work speed is practically independent of outdoor conditions. And such a machine almost does not produce excess heat. The disadvantages of models with a heat pump are traditional — complexity and high cost.

— Air vented. A kind of drying in which excess moisture is blown out of the machine into the outdoor space. Compared to condensing drying, this option allows you to create simpler, cheaper and more compact units. And such models are somewhat easier to use because they do not require monitoring the water level in the condensate tank. On the other hand, installing a ventilated machine is noticeably more difficult. So, in the room where the unit is located, there must be a powerful ventilation system, otherwise, there will always be high humidity and temperature. Such a microclimate is not only harmful to people and furniture but also significantly worsens drying efficiency. If it is impossible to organize general ventilation for the room for one reason or another, one will have to make a separate air duct to remove steam from the dryer. As a result, this type of drying is considered inconvenient and extremely rare.

The number of preset drying programmes. Such programmes are often optimized for a specific type of fabric: linen, silk, synthetics, etc. The more drying programmes, the more versatile and easier the dryer is to use. However, a specific set of modes in different models may be different, and even a large variety of programmes does not guarantee that one of them will be suitable. So before buying, it is advisable to specify not only the quantity but the list of claimed programmes.

Itis an ability to set the machine custom programme of work. In such a programme, the user can specify the operating parameters (duration, temperature, rotation intensity, etc.) at his discretion; this gives additional options for managing the unit. The custom programme can be useful in non-standard situations, when none of the predefined operating modes is suitable.

Note that the set of parameters that are set when creating your programme may be different in different models; these details need to be clarified separately.

This function of the dryer prevents the formation of the crease on the laundry as much as possible, which facilitates subsequent ironing. Of course, anti-crease function does not give a full guarantee against creasing, but it noticeably makes life easier for the user. Especially when working with fabrics like linen or in cases where the things themselves are not particularly wrinkled but can crumple with inaccurate drying.

A programme designed to remove odours from clothes, such as tobacco smoke, or an unpleasant odour that appears after a long period of storage. The refresh programme is useful if the clothes are clean, but the smell still needs to be eliminated — refreshing in the dryer takes less time and effort than quick washing and then drying (even if using the same dryer). This function is especially relevant for drying cabinets.

The presence of a drying basket allows you to carefully place woollen items, as well as shoes, which contributes to delicate drying and the laundry does not “fly” around the drum like in washing machines.

System for automatic cleaning of the heat exchanger from fibres and all kinds of deposits that prevent easy air circulation. The self-cleaning function is performed during each drying cycle. It extends the life span of the heat exchanger and ensures consistently low energy consumption over the life span of the dryer.

Only condenser dryers have such a tank (see "Drying type"). The larger the tank, the less often you have to get rid of the accumulated liquid. At the same time, in most models, the volume of the condensate tank is standard — about 5 – 6 litres: this is considered the best compromise between capacity and dimensions.

Drying class describes the overall drying efficiency that the machine provides. It is denoted by a Latin letter, where A is the best efficiency, and further in decreasing order ( drying class B is inferior to class A, but exceeds class C). Naturally, higher efficiency machines cost more (ceteris paribus).