Comparison Cooper&Hunter CH-V128EB vs HotFrost V118E

The volume of the cold water tank provided in the device.

In this case, it means a tank for water specially cooled by the device (see "Water supply"). The volume of the tank is the maximum amount of cold water that the cooler can dispense in one run, without interruption or with minimal interruptions. When this amount is exhausted, you will have to wait until the water in the tank cools down again to a sufficient degree; the waiting time depends on the cooling capacity (see below). At the same time, the volume of cold water tanks in modern devices is usually several litres, and it is extremely rare to drain this entire volume; usually, small portions of 200-300 mL are required. Therefore, this tank plays the role of a buffer — when the user drains the next portion of water, water from a bottle or a water mains is added to the tank; such an admixture does not particularly affect the temperature in the tank, however, for an additional guarantee, the cooling system immediately turns on. Thus, if consumption does not exceed productivity.

The performance of the cooling system installed in the device, in other words, is the amount of water that can be cooled per hour. In coolers, it is usually indicated for water at room temperature — about 20 °C, in models with a connection to the water mains (see "Water loading") — for 15 °C (this is the average temperature of cold water). Accordingly, when deviating from these indicators, the actual performance may be slightly more or less (however, such deviations must be very significant for this to become noticeable).

This parameter determines two main points. First of all, it characterizes the maximum flow of cold water that the device can handle and the recommended breaks between use. For example, if a user needs to collect 2 standard 200-gram cups and the cooler specifications state a cooling capacity of 2 L/h, this means that the cooler will cool 400 g (0.4 L) of water that has entered the tank, for 0,4/2 = 0.2 h, that is about 12 minutes. However, the need for such calculations arises mainly with high water consumption, which is very close to the claimed performance.

Also, knowing the cooling rate and the volume of the cold water tank (see above), you can determine how long it will take to cool the tank filled with water at room temperature. Such situations arise during the first use of the device, as well as when draining the entire volume of the reservoir. So, if in the above example, the volume of the tank is 3 litres, then 3/2 = 1.5 hours...will be spent on cooling it. However, you can use water earlier, if a slightly elevated temperature is not critical.

The performance of the heating system installed in the device, in other words, is the amount of water that can be heated per hour. In coolers, it is usually indicated for water at room temperature — about 20 °C, in models with a connection to the water mains (see "Water loading") — for 15 °C (this is the average temperature of cold water). Accordingly, when deviating from these indicators, the actual performance may be slightly more or less (however, such deviations must be very significant for this to become noticeable).

This parameter determines two main points. First of all, it characterizes the maximum consumption of hot water that the device can handle and the recommended breaks between use. For example, if a user needs to fill 2 tea cups with a volume of 300 mL each, and the cooler specifications state a heating capacity of 3 L/h, this means that 600 g (0.6 L) of water that has entered the tank instead of poured out, the cooler will heat in 0.6/3 = 0.2 h, that is, about 12 minutes. However, the need for such calculations arises mainly with high water consumption, which is very close to the claimed performance.

Also, knowing the heating rate and the volume of the cold water tank (see above), you can determine how long it will take to heat the tank filled with water at room temperature (for example, if the cooler is started for the first time, or if the tank was completely drained before). So, if in the above example, the volume of the tank is 1 li...tre, then 1/3 hour will be spent on heating it, that is, about 20 minutes. However, you can use water earlier if maximum heating is not critical.

A cup holder is a special stand or compartment for storing glasses. Note that almost all coolers and purifiers can install a cup holder, but here it means that such a device was originally provided in the kit or device design — this eliminates the need to purchase a cup holder separately.

Usually, cup holders are designed for classic disposable plastic cups with a capacity of about 200 mL. At the same time, the holder, usually, can accommodate a whole stack of such cups — about two dozen or even more. The convenience of this function is that the cups are always near the device, and the user does not need to worry about which container to pour water into and carry cups or other vessels with him. The main user's job is not to forget to replenish the supply of cups on time.

The type of locker provided in the design of the device.

The locker is found in coolers with floor placement (see "Type") and top installation of the bottle (see "Water supply"). The options might be:

— Normal. The simplest locker in the form of a compartment with a door that does not have any additional "features like a cooling system or an ozonizer and is designed exclusively for storing various things. In such a compartment, you can keep, for example, a supply of tea, coffee and sugar, cups etc.

— Refrigerator. A locker that is a full-fledged refrigerator. It is found exclusively in models that use a compressor cooling system (see "Cooling type") — only this design provides sufficient performance to also cool an additional compartment. The volume of the refrigerator, usually, is small — about 15 – 20 litres; but even such storage can be very useful — for example, for perishable products in hot weather, or for cooling drinks.

— Ozonator. Locker equipped with an ozone generator. Ozonation is one of the most effective, convenient and safe methods of disinfection: it destroys almost all known bacteria and viruses. However, ozone itself is poisonous to humans, so care must be taken when using this function. Nevertheless, ozonizers usually have a hermetically sealed working compartment, and the ozone itself disintegrates within a f...ew minutes and turns into ordinary diatomic oxygen — the one that people breathe. This function may be useful primarily for processing tableware and cutlery — for example, if they have been idle for a long time, they are not dirty, but bacteria could develop on the surface.