Comparison Whirlpool W9 OP2 4S2 H vs Whirlpool W9 OS2 4S1 P

The cooking temperature range allows you to understand which special tasks are subject to the oven. The lower temperature from which the oven starts heating, usually, is in the range of +30 to +50 ˚C. So, for example, the minimum heating temperature at +30 ˚C allows you to defrost products. Models with a minimum of 40 ˚C and 50 ˚C allow you to heat ready meals, heat tableware (before serving), dry crackers, etc.

Among the ovens features, one can single out the basic ones inherent in most devices ( gas control, auto ignition, thermostat, timer, auto switch-off, child lock), and top-level features that are relevant for devices of the highest category ( control via Internet, built-in video camera, TFT display). More about them:

— Gas control. Thermoelectric system designed to protect against gas leakage. If the flame is accidentally extinguished, the gas supply to the chamber is immediately stopped. The gas control usually includes a thermocouple (to determine the presence or absence of a flame) and a gas blocking device.

— Auto ignition. A system that provides automatic ignition of gas simultaneously with the start of its supply. The user does not need to use matches or a lighter, press a separate button, etc.: the gas ignites immediately when the handle is turned. Found only in models with appropriate heaters (see "Oven").

— Thermostat. A device that maintains a predetermined temperature in the oven.

— Timer. A device that provides a countdown time and allows you to control the cooking process precisely. After the set time has elapsed, the timer, usually, beeps, and in some models, i...t also turns off the heating. Timers can be either mechanical or electronic; the first one is simple and inexpensive, and the second one is more accurate and better combined with additional features (for example, auto switch-off).

— Auto switch-off. In this case, we are talking about a function that provides automatic shutdown of the oven according to the timer (see below); the timer itself does not imply auto-off, so if such an ability is important, you should choose a model where it is directly stated. Also, auto switch-off can be provided as a protective system that prevents overheating — such automation turns off the oven if no commands have been received from the user for a long time or when the temperature rises critically.

— Control via Internet. The specific control method may be different: some models use an application that needs to be installed on a smartphone or tablet, while others use a regular web page that can be opened in any browser. These details should be specified separately. Anyway, this function allows you to access control from anywhere in the world where there is access to the World Wide Web. For example, in the morning you can load food for a dish into the oven, and when you leave work, launch a cooking programme via the Internet, and get a ready-made hot dish by the time you return home. Also, note that such control usually allows not only to give commands but also to receive notifications from the oven. In particular, the device can report the progress of the programme, readiness, various problems, etc.

— Video camera. The presence of a built-in camera for more detailed control of the preparation of the dish. The user can visually control the cooking process without opening the oven door. Most often, the built-in camera transmits video via a wireless Wi-Fi connection. As a pairing device, you can use both a computer with a laptop and a tablet/smartphone. Of course, on a mobile/computer device, you will need to install proprietary software. The video camera is especially relevant in cases where the oven is used to prepare complicated meals. Regular control, without disturbing the temperature regime due to the opening of the door, minimizes the risk of food spoilage.

— TFT display. The oven has its TFT display. In this case, we mean a screen that does not consist of segments but pixels and is suitable for displaying various types of data: numbers, text, graphic symbols, pictures, etc. A wide variety of information can be displayed on the TFT display, which makes the operation of the oven more convenient. However, this variety is only relevant for advanced models with an abundance of functions, so the presence of such a screen is usually a sign of a premium oven.

— Child lock. In modern ovens, it can be done in different ways. So, in some models, you can block the oven door — so that a curious little child cannot open it during cooking and get burned. In other devices, a control panel lock is also provided — thanks to it, the baby will not be able to turn on/off the device or change the cooking mode. Child lock is unlocked in a non-obvious way accessible to an adult but not to a child — for example, by simultaneously pressing two buttons.

The number of layers of glass in the viewing window of the oven door.

Modern models, usually, have from 2 to 4 glasses. The more glasses, the less heat loss and the more economical the oven, but this parameter also affects the cost.

Type of guides for installing baking sheets that are used in the oven.

— Frame. Classic guides have the form of slots with protrusions in the side walls of the oven. This design is simple and inexpensive. However, it is not very convenient — when removing baking sheets, you have to pull your hand into a heated oven, which means you will need a mitten or potholder. And the extraction itself may require effort, especially if the guides are dirty and the trays go tight in them.

— Telescopic. Retractable guides on which the baking sheet “leaves” the oven, usually, immediately when the door is opened. Such devices are more convenient than frame ones, but they are more expensive and not suitable for all situations (for example, sometimes to check a dish you only need to open the lid without pulling it out). Therefore, in most models, telescopic guides are only on one level. But telescopic guides on two levels or even three levels already classifies the device as a top segment.

The type of inner cleaning provided in the oven. Note that pollution has to be removed with a rag or sponge, but modern ovens often provide various tricks that facilitate the process. The options might be:

— Catalytic. A special wall coating is used in ovens with this cleaning method: it breaks down fats and other stubborn dirt into constituent elements that can be easily removed. The effectiveness of such a coating decreases over time, but it is enough for at least several years of full use. It should be noted that the catalytic coating can be implemented by applying it to special removable plates that are installed on the back or side walls of the oven chamber.

— Steam cleaning. Cleaning with hot steam, which softens dried-on dirt and partially breaks down fats. In some models, there is a built-in steam generator for this, in others it is enough to put a container of water in the working chamber and turn on the cleaning program.

— Pyrolytic. Cleaning by heating the chamber to a very high temperature — about 500 ° C. At this temperature, most of the contaminants are incinerated into ash, which can then be easily removed. Pyrolytic cleaning is considered the most effective, but ovens with this function are expensive, time consuming, require significant electricity/gas consumption, and can lead to unpleasant odors.

The electrical power consumed by the oven during operation, in other words, the power that must be supplied to the oven so that it can work normally. This parameter determines not only the total energy consumption (and, accordingly, the amount of electricity bills) but also the specifics of the power supply: with a power consumption of several kilowatts, a conventional outlet may not be suitable, and the wiring must be quite reliable.

Note that it is customary to indicate the connection power only for electric models (see "Oven"), as well as for gas devices with electric grills.

In the case of ovens, the dimensions determine not only the sizes, but also the conditional form factor and the possibility of installing models. Dividing by height, the devices can be compact(low) for installation in hanging cabinets and full-sized — classic ovens for installation under the countertop. As for the width, in addition to standard models of 60 cm, there are narrow (45 cm) and wide (90 cm) models to interact with similar wide hobs.