How to calculate water consumption in a dishwasher? Water consumption when washing dishes

Water consumption in a dishwasher is primarily related to its capacity. The more sets of dishes the device can process in 1 cycle, the greater the volume of liquid consumed. On average, this value is 8-11 liters. What factors influence consumption and how you can reduce it are described in detail in this material.

Average water consumption

Consumption is defined as the volume of water (in liters) that the machine uses during one cycle to clean all loaded water sets. How much water a dishwasher spends, on average it is 9-11 liters, although it can be 7-9 liters, as well as 12-13 liters. Based on this indicator, all units can be divided into 3 types:

1. Compact - the narrowest (45 cm wide) consume 7-10 liters. Moreover, in one cycle they can process from 6 to 8 sets of dishes.
2. Full-size (width 65 cm) spend more water - from 9 to 14 liters. At the same time, they can process 10-14 sets.
3. If we talk about how much water a professional dishwasher consumes, the volume will be 15-25 liters. Such units are used only in restaurants and other catering establishments.

When assessing how much water a dishwasher consumes, you should not forget about such a class of appliances as tabletop devices. They are installed in apartments with small kitchens and spend only 6.5-7 liters of water.

What does consumption depend on?

How much water a dishwasher uses depends on various factors. This includes capacity, energy consumption class, mode of use and even type of water. The main parameters are described in the following sections.

Capacity

One of the main ones is the dimensions and capacity of the unit. It is clear that the greater the depth and width, the more dishes can be placed, for example, 10-12 sets. But the more liquid you will have to spend.

Energy class

When assessing how much water a dishwasher consumes, you should also take into account its energy consumption class. The indicator is indicated by letters, where the most economical option is A, and the least economical is G:

• A;
• IN;
• WITH;
• D;
• E;
• F;
• G.

Modern well-known manufacturers, for example, Bosch, Siemens, Electrolux, produce only economical models of class A to C. Lower categories of dishwashers with large water consumption are practically not found today.

Selected mode

Another important indicator that influences how much water a dishwasher consumes per cycle is related to the selected mode. For example, many models have a half-load option. Then it’s easy to understand the water consumption of a dishwasher - it decreases by about 2 times (for some devices by 30%).

At the same time, quite a few modern devices have the option of “intelligent evaluation” of downloads. In this case, the machine, using installed indicators, determines how much water is needed for a specific amount of dishes. Thanks to this, the dishwasher's water consumption per cycle is minimal. Various devices are equipped with this option, including compact ones that can be easily built under the countertop, like a washing machine.

There is another parameter that determines how many liters the dishwasher consumes. This is the washing mode that the user selects:

1. Economy - average consumption, about 8-9 liters. Suitable for daily processing at a temperature of 50 degrees.
2. Auto – complex mode with pre-wash, rinse and dry. Here it is impossible to say for sure how many liters of water a dishwasher consumes, since the range is quite wide - from 6 to 12 liters.
3. Light pollution - a fairly simple mode, costs 7 liters. In this case, how much water the dishwasher takes is quite comparable to the consumption during regular manual washing.
4. Finally, there is also intensive washing - in this mode, the dishwasher's consumption is 10-12 liters.

Manufacturer

How much water a dishwasher uses depends in part on the manufacturer. If you review the most popular brands, you will get the following picture:

1. Bosch devices have wide functionality and at the same time effectively save resources. The consumption of water and electricity by the dishwasher is small - 10 liters and 0.91 kWh, respectively.
2. The water consumption of a Siemens dishwasher is noticeably less and is approximately 7-8 liters.
3. For Ariston Hotpoint devices, as a rule, 8-10 liters are sufficient. Moreover, such an average water consumption of a dishwasher allows all functions to be implemented, including pre-washing and rinsing.
4. Veko models are among the most affordable, but the dishwasher's consumption per cycle is quite large and amounts to 10-12 liters.
5. The water consumption of the Indesit automatic dishwasher is also quite economical and is only 7-8 liters.
6. When it comes to how many liters a Candy dishwasher uses, the specific value can vary greatly between 8-13 liters.
7. Electrolux models consume 9-10 liters, which is quite economical. Moreover, it is not so important how many liters of water a dishwasher consumes as its functionality. These devices operate in different modes and effectively clean even stubborn grease stains.

Thus, water consumption when washing dishes depends on a variety of factors and can take different values ​​from a minimum of 6 to a maximum of 12-13 liters. It should be understood that savings are achieved due to the fact that the same water is used several times during one cycle. To do this, it passes through a filter, which must be cleaned periodically.

The efficient water consumption of the Bosch dishwasher and other models is also due to the fact that the liquid is sprayed under high pressure. In addition, washing takes place at high temperatures, for example, 50-60 degrees, which cannot be done manually (there is a risk of getting burned).

Now it’s clear how many liters of water a dishwasher uses. Devices spend different amounts, but even if we take the maximum value of 12, this is not that much. Taking into account current tariffs, one car wash costs 50-60 rubles. Even in daily use, monthly expenses will be in the range of 1500-1800 rubles.