When choosing a storage water heater, first of all, pay attention to its power and volume. How quickly the water heats up and how long it will last are the main criteria when purchasing a device.
The volume of boiler you need will depend on several factors:
— How many people will use the water heater?
The more people live in the house, the more volume you need.
— For what purposes will the water be used?
Hand washing only? Or also taking a shower, bathing, doing laundry, etc.?
— How intensively will the device be used?
Do several family members take baths with little time between them, or do dishes only a few times a day? This is important because with continuous use of water it will not have time to warm up. If you use it at certain intervals, then each family member will be able to wash comfortably.
- What time of year will it be used?
In winter, the temperature of cold water in apartments is lower than in summer, so heating it will require more power. And the consumption of hot water in the cold season will be greater. In addition, the cold water temperature outside the city is lower than in apartment buildings.
Selecting the volume of the water heater
It is believed that one person uses about 30 liters of hot water to take a shower. And if there are two of you, then you need a boiler of 50 - 80 liters. These numbers are very approximate.
A water heater of the following displacement is suitable for one person:
• 10 – 30 l – for taking a shower or using the sink • 50 – 80 l – for both taking a shower and for washing dishes (washing) • 80 – 100 liters – for taking a shower, bath and washing dishes • 120 – 150 l – bath, shower, washing dishes, washing
These figures do not take into account how economically you use water.
Most users agree that a 50-liter boiler
. For 4 people, and if you like to soak in the bath, you will need a larger volume device - 80 - 100 liters.
It is also worth taking into account how quickly the water will heat up. For example, Ariston Velis QH (Quick Heating) water heaters with three heating elements heat 25 liters of water in just 29 minutes (in the outlet tank of a 50-liter boiler). If you take back-to-back showers, you can buy a large tank. But perhaps it is easier to use a small volume water heater and wait for the water to heat up again after one person has taken a shower, rather than wait 2.5 hours and then use it all at once?
How to save hot water in a storage water heater?
To ensure that the hot water in the tank lasts for a long time, you need to follow a few simple rules.
1. Turn off the water when you are not using it. For example, when you soap yourself in the bathroom or apply detergent to dishes. 2. Take breaks between taking a shower and, for example, washing dishes, so that the boiler has time to heat the water. 3. Choose models with dense thermal insulation and a temperature stabilizer that automatically turns on heating of water when it cools. 4. Some models of water heaters are equipped with several heating elements at once, thanks to which they heat the water even faster. This includes a narrow Ariston ABS VLS INOX QH model with three heating elements.
All described models are presented in our online store. You can buy a water heater from us in St. Petersburg with delivery throughout the city and the Leningrad region. Delivery throughout Russia is also provided.
Questions and Answers
How to determine the required boiler volume? 150 liters for a private home.
The volume of the boiler is equal to the peak discharge of hot water in your family during the complete renewal of the contents of the boiler - in fact, this is the moment and duration of use of the shower. The number of residents and the size of the house do not matter; the heat extracted by the heated towel rail in the boiler circuit is not critical. How does boiler power compare with boiler power? An indirect heating boiler has priority in receiving boiler power before heating. The boiler receives all the heat from the boiler during the preparation of hot water. The boiler must have equal or greater power than the boiler heat exchanger - otherwise we will experience a slowdown in the preparation of hot water. The less power the boiler has compared to the boiler rating, the longer the heating system of the house does not receive heat from it, which is fraught - everything goes to the hot water supply.
How many heating elements should an indirect boiler have? Heating elements are used to maintain the temperature of the boiler when the boiler is out in the winter, and are also used in the summer when the boiler is not used at all. In the summer, it is important to note that the heating elements in total have much less power than the boiler received from the boiler, which sharply slows down the preparation of hot water with the resulting loss of comfort. If the networks allow, you can change the heating elements for more powerful ones, or consider the summer mode of the boiler for the boiler.
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