Which electric boiler to choose for the house. Storage boiler and its features

It is difficult to imagine your life without hot water. That is why the owners country houses, dachas actively use special devices for heating water - boilers, which today have firmly entered our lives. They are often installed in city apartments, as they help out a lot during periods of planned and unscheduled outages of hot water supply. Doubts about the need to purchase this useful device no, it remains only to figure out which water heater is better to buy in private house, and which - in the apartment.

Types of water heaters

According to the principle of operation, heaters are divided into:

• Cumulative;
• Flow-through;
• Flow-accumulative;
• Bulk.

Storage boilers

Storage boilers are especially popular among buyers. They are affordable and consume little electricity, although they spend more time heating water than instantaneous water heaters. An important advantage of storage boilers is the ability to distribute hot water to several points: a shower, a kitchen tap, etc.

Important! Water in a storage boiler is heated by one or more heating elements. The latter can work together or alternately if the power saving mode is set.

What are the heating elements?

Also as heating element not only tubular electric heaters (they are also heating elements), but also spiral heating elements can act. They are installed in boilers large capacity, as they have higher power and are able to heat a lot of water in a short time period.

Important! Spiral heating elements are able to very accurately keep the temperature at the desired level. However, when deciding which water heater is better to buy in a private house, it is important to know that a boiler with this type of heating element will cost an order of magnitude more expensive. There are also difficulties in the issue of replacing the spiral water heating element.

For ease of use, most models of storage boilers are equipped with thermostats and thermometers.

Important! During the shutdown of hot water supply or for summer cottages, you can use a small one.

How does a storage boiler work?

When the water in the tank is collected and heated, the device automatically switches to the temperature maintenance mode. As the water cools down by one degree, the heating function is activated again. And so on in a circle, if the boiler is not set to another - manual, mode.

Important! To keep the water cool long time, a special insulation is built between the body and the walls of the tank. If the thermal insulation is normal, then even when boiling water is inside the boiler, the tank itself remains cold, and the water in the tank remains hot for a long time, even when the keep warm option is turned off.

Instantaneous water heaters

How to choose a water heater for the home, so that it compares favorably with a high rate of water heating and compact size? It is these characteristics that distinguish instantaneous water heaters. However, they require more energy to operate.

Important! As a rule, the heating element of such heaters has the shape of a spiral, which easily copes with the task of heating passing water.

The heating element turns on and off, thanks to a special element - a flow sensor. Follow the link and find out:

The temperature of the water in flow boilers is set by a thermostat. It looks different, depending on the model of the water heater: from a scale with an arrow to a display with touch controls or buttons.

Pressure and non-pressure flow-type boilers

Instantaneous water heaters are presented in two main options:

• Pressure (system);
• Non-pressure (individual).

What is the difference:

• The former are able to provide hot water several water intake points: a shower, a kitchen sink, a washbasin, etc. The power of such installations can reach up to 380 watts.
• Non-pressure instantaneous water heaters are usually purchased in order to temporarily solve problems with the lack of hot water: during planned shutdowns, to the country house.

Important! When using instantaneous water heaters of both types - system and individual, it is necessary to protect yourself with the help of grounding. Electric power to such boilers should be provided by a separate line from the shield.

Flow-accumulating devices

Such boilers can operate in two modes. Usually tank water is used. If the amount of water consumed exceeds its capacity, the flow heating function is activated.

Important! The main disadvantage of this convenient device is a high price.

Bulk water heaters

If you are puzzled which boiler to choose for a private house that is not equipped with running water, pay attention to this option. The bulk water heater is a small device made of stainless steel, plastic or enamelled steel with a lid and a shower hose. A water heating element is located inside the tank. The degree of heating can be controlled using a special thermostat on the body.

According to the power source, boilers are:

• Electrical;
• Gas.

The latter favorably differ in high profitability.

Types of boilers by type of energy consumption - features of different devices

Let us dwell on the varieties of water heaters in more detail.

Accumulative electric boiler

Optimal and convenient option for large families, as it allows you to stock up on a sufficient amount of hot water - up to 200 liters.

Usually cumulative electric boilers have two heating modes:

• Normal;
• Accelerated.

Important! This device is easy to install and operate. Important advantages are economy and affordable price.

The disadvantages include the dependence of the boiler on the pressure in common system water supply, as well as a fixed amount of heated water, which in some cases may not be enough.

Instantaneous electric water heater

When deciding which water heater is better to buy in a private house or in a country house, this option is definitely worth considering.

Powerful boiler with compact dimensions and high power consumption. Like a storage boiler, for normal operation it requires a stable pressure in the water supply and high pressure.

A significant advantage is the ability to heat any required amount of water for short span time. Heating occurs due to the passage of water through the heating element. Easy to install and operate. If necessary, a flow-type boiler can be connected directly to the tap.

Important! Due to the high energy consumption, we do not recommend purchasing an instantaneous water heater for an apartment. The option is more suitable for a private house, where the voltage is up to 380 volts.

Storage gas boiler

Which boiler to choose for a private house? The question is not easy. However, if you are focusing on efficiency and convenience, pay attention to a storage water heater powered by a burner.

Important! Such a boiler will provide even the largest family with enough hot water with significant budget savings.

The main disadvantages of storage-type gas boilers are considered to be:

• Large dimensions;
• High cost;
• Installation inconvenience.

Flow type gas boiler

The option is perfect for private houses with central system heating. A gas instantaneous water heater compares favorably with stability in operation, since the heating of water here does not depend on the pressure in the water supply system. The boiler works perfectly even when it is reduced, heating water quickly, safely, and, most importantly, economically.

Important! As a minus, one can high price such water heaters.

What to focus on when choosing?

Deciding which boiler is better to buy for your home will help a few important criteria that you should rely on when choosing:

• Purpose of use;
• Number of people in the family;
• The area of ​​​​the bathroom (kitchen) or other room where the water heater will be installed.

Important! Think in advance what you need: a constant supply of hot water with a water heater, or the boiler will only help out in cases of hot water outages.

Important characteristics of the boiler

When buying a storage type water heater, pay attention to such important indicators:

• Tank volume. The choice of capacity should be determined by the purpose of the purchase and the number of family members.
• TEN. There are two types of heating elements in boilers: wet and dry. The latter will provide longer operation, but a boiler with such a heating element will cost much more.
• Thermal insulation. Important indicator economy. The better thermal insulation properties reservoir, the less expenses for electricity.
• The power of the device. It determines the rate of electricity consumption and the time during which the boiler heats the water.

Important! When deciding which boiler is better to buy for your home, pay attention to a boiler with two heating elements. The second heating element is used in a situation where it is required to heat water in the shortest period of time.

Volumes of water heaters

The capacity of the boiler should directly depend on the purpose of your purchase and the number of family members who will use it.

Important! Think about the size of the room and installation in advance. A large water heater requires enough space in the room. When installing some boilers, such as a gas storage type water heater, we recommend that you seek help from specialists.

So, let's figure out which water heater is better to buy for your family:

• For small apartments, compact water heaters are purchased, which usually take their place above the toilet on the wall.
• If you need hot water from the boiler only for washing dishes, it will be enough to purchase a 15-liter boiler. It can be installed under the kitchen sink in the cabinet itself or above the sink.
• How to choose a water heater for your home to provide hot water for a family of 3? For a shower and a bath for three, 60 liters of hot water will be enough.

Important! If we are talking about a storage boiler, do not forget that after each use it takes time to heat the water. It usually takes 1.5-2 hours.

• If your goal is to use hot water from a boiler every day, pay attention to containers of 150-170 liters.

Important! Often, the larger the capacity, the longer the life of the water heater.

• Several bathrooms will require a boiler that holds 400 liters or more.

Important! When buying, do not forget about energy costs. The larger the boiler, the more electricity he will consume. Accordingly, the utility bill will also increase.

Tank material: how to choose?

The most corrosion-resistant materials are ceramics and glass porcelain. However, they have significant disadvantage: Sensitivity to sudden changes in temperature. As a result of such temperature changes, the surface of the tank may crack, which will lead to the failure of the device.

If you decide which boiler is better to buy for your home so that it lasts as long as possible, pay attention to the enamelled steel boiler.

Important! The service life of a water heater can be significantly extended by the presence of an anti-corrosion rod made of magnesium or titanium in it. But such boilers are usually more expensive.

The shape of the water heater and the location in the room:

• Usually there are flat and round shapes. The latter retain heat better, but despite this, they are less popular among buyers than rectangular or square ones.

Important! Flat water heaters are easier and more convenient to install. They are also easy to hide in a closet, if necessary.

• The orientation of water heaters in the space of the room can be either horizontal or vertical. The second provides faster heating and at the same time low energy consumption.

Saving Options

The most economical option for using a water heater is to operate the boiler in automatic mode.

Important! At manual control the boiler is lost a large number of heat, respectively - it takes to heat large quantity energy consumption. In auto mode, heat loss is minimal, and energy is required only to maintain the desired temperature.

What to look for when choosing a device:

• When deciding which water heater is better to buy in a private house, pay attention to the presence of a heating function only at night, when the electricity tariff is lower.
• It would also be useful to clarify whether the boiler has the ability to work only half-heartedly when rapid heating is not required. This option allows the water heater to work more economically.

Important! If you are looking for a durable appliance that will save you money, opt for a tank with a larger capacity than required. At the same time, we advise you to set the heating to no more than 50 C. This option is much more rational than buying a small boiler and setting it to the maximum water heating mode. So it will wear out much faster.

Water heaters from the best manufacturers

How to choose a water heater for your home? An important factor when buying a boiler, of course, is the manufacturer. Below we have listed reliable brands, the main criterion of which is value for money, as evidenced by numerous user reviews of boilers from these companies.

Among the manufacturers of boilers recognized by buyers, the following brands can always be seen among the first:

• Zanussi (Italy);
• Bosch (Germany);
• AEG (Germany);
• Thermex (China);
• Timberk (China);
• Electrolux (Sweden);
• Ariston (Italy).

Popular models of storage boilers

Accept in advance the right decision regarding a more suitable storage boiler model, you can, focusing on this rating best models water heaters.

Thermex ID 50V

This model is characterized compact dimensions with a sufficiently large volume of the tank:

• The depth of this flat water heater is only 23.5 cm.
• The storage tank is made of stainless steel, has a high water heating rate, is easy to install and operate.
• Manufacturer's warranty - 7 years.

Electrolux EWH 80 Centurio Digital

If you have already decided which boiler is better to buy for your home, and the choice fell on a storage one, pay attention to this model.

It has bright external and high-quality technical characteristics:

• The tank, with a capacity of 80 liters, is made of stainless steel.
• Equipped with a heating element with a good rate of water heating and provided with excellent thermal insulation properties.

Zanussi ZWH/S 80 Smalto:

• The inner tank of this model has a particularly durable enamel, which is typical for all boilers of the Smalto series from Zanussi.
• Water in a copper heats up very quickly, thanks to two heating elements which can work independently.
• With the help of an electronic display, the water temperature is regulated with high precision.
• In space, the model can be located both in vertical and in horizontal projection.
• Equipped with an anode - protection of the tank from scale and corrosion.
• The package includes a control panel.

Top models of instantaneous water heaters

Water heater Ariston Bravo E 7023 U-F 7:

• Stylish water heater with high performance - up to 4 liters of water per minute.
• It has a pressure water supply, equipped with a spiral water heating element.
• This model is absolutely safe, as it is provided with an auto-shutdown function in case of power outages.
• There is a valve that protects against high pressure, an option to protect against overheating.
• The set includes a water filter, a shower faucet and a watering can.

Important! As disadvantages, buyers note poor thermal insulation and the need to install electrical wiring with grounding for safe and stable operation of the device.

Water heater Electrolux NPX6 Aquatronic Digital:

• Quality compact boiler at an affordable price.
• Productivity - 2.8 liters per minute.
• Equipped with a digital display and an option to limit the heating temperature.
• There are heater fuses from overheating and water ingress.

Water heater Timberk WHEL-3OS:

• Non-pressure water heater with a small capacity - 1.9 liters per minute, but at the same time quite powerful - 3.5 kW.

We are sure that now the question of which boiler to choose for a private house no longer seems so difficult for you. Modern market replete with a variety of water heaters for every taste, budget and needs. Enjoy the shopping!

All owners of country houses and cottages are puzzled by the purchase of a device that provides them with hot water. It is easier for residents of private houses to equip an autonomous type of water supply than for owners of apartments in typical multi-storey buildings. Now there are many models of boilers, it remains only to understand which water heater to choose for your home.

Boilers differ in the type of installation:

• can be mounted on the wall;
• can be installed on the floor.

According to the main features of the work, water heaters are divided into:

• flow system;
• storage system.

According to the type of combustible substance used to generate heat:

• the operation of the device can be carried out using gas;
• the system can be powered by electricity;
• thanks to solid fuel materials;
• thanks to the combined materials;
• through indirect heating.

Which water heater is better to buy in Vacation home? How to choose a water heater for a private house according to the pros and cons of different models?

Important: the installation of gas and electric water heaters is supposed to be in one of the rooms in the house. The remaining types of water heaters are located in rooms not intended for habitation.

If it is possible to install such a device, it is most reasonable to buy a model that will provide not only hot water, but also heat rooms.

Wall or floor

Wall models of water heaters are different small size and low cost. However, there are a number of strict requirements for their installation. For example, if the owner country house wants to install a bulk boiler on the wall, it is important to consider that the installation of a large tank is possible only on a solid vertical part of the building, the surface of which should not be combustible.

When installing wall heaters, it must be remembered that the distance between the building surface and the device must comply with the specified requirements.

In turn, floor water heaters are the safest and most reliable regarding this issue. You do not have to worry about the fact that the boiler can break and fall, since they are supported by horizontal carriers.

If big family there is a shower, it is best to look at storage water heaters, they have large tanks and are installed on the floor. All floor water heaters are partially fixed to the wall.

Flow or storage

Flowing water heaters are usually attached to the wall. They do not have large sizes, therefore, it is necessary to find a place for it that meets the safety conditions. Flow type heaters are characterized by low cost, convenience and efficiency. But there is one significant disadvantage: the lack of the ability to produce a large flow of hot water. If large volumes are required, this type of boiler is not suitable for a private house.

With a large consumption of hot water per day, the most the best choice there will be devices with storage tanks that provide a good pressure of hot water. But the price of such a water heating system is quite high.

Boilers are subject to the destruction of parts inside the structure. Tanks at the same time are steel and cast iron.

Gas or electric boilers

Gas home water heating systems can only be installed if there is access to gas. Unlike electric models, they are much more economical and comfortable to use. True, before installing such a water heater, you will have to create a project and coordinate the installation of the device with the controlling service. Installation can only be carried out by specialists who are allowed to work with gas equipment.

The electric water heater is safe and has no harmful effects on nature. The design of water heaters is strict and not overloaded with details. Their convenience lies in the fact that they contain an automatic device. To carry out the installation of such equipment, you do not have to contact different kind permission services. cons electric water heater can be called high cost both the device itself and the fuel. In addition, the stability of its operation directly depends on the level of current supply.

Complex arrangement of a country house with hot water or heating

If a country residence is most often used for relaxing on weekends, you can limit yourself to a small water heater. In the case of a permanent stay in the house, you need to seriously approach the integrated provision of it with water and heat. The boiler room, equipped in a separate annex, is best suited for this.

For such a house, a heater operating using a diesel, solid fuel or combined mechanism and connected in a two-circuit scheme is suitable. This option is the most profitable and convenient. It means setting storage tank indirect heating. Having installed such a system, it will only be necessary to monitor its operation and maintain it in time.

Wood water heaters

It is also possible to install a wood-burning water heater for a private house, which will be located in one of the rooms. The main advantage of this system is efficiency at low cost, as well as the admissibility of using other solid combustible materials (coal, coal briquettes). Having the opportunity to buy coal or firewood at a low price, installing such a water heater will be the best solution.

A modern manufacturer of solid fuel boilers has made sure that you do not have to clean out soot and constantly fill the furnace. Once filling the furnace, the device itself, by means of sensors, will maintain the desired temperature regime, and the fuel will be consumed extremely economically.

Choosing a water heater according to the amount of hot water consumed

Given the water consumption, you can purchase a tank of small, medium and large sizes. Diesel boilers are not yet so popular in our country, but in Western countries a similar system of water supply and heating of country houses is the most common.

Such water heaters are very comfortable in that their workflow does not require the loading of fuels. A plus is also the possibility of switching to gas consumption. Connecting the water heater is easy. But the installation of the system will require a lot of labor and cash injections. Nevertheless, for the already short period of use of the equipment, all the laboriousness of the work pays off.

Naturally heated tanks

During hot periods, an additional water heating system will not be superfluous. These devices are powered by solar energy. The modern market offers options for systems that are located on the roof and use the heat of the sun. The installation of such a system is very simple. A tank is installed on the roof of a building or a shower room (located separately). Of course, such water heating systems are effective only in good and warm weather. However, one way or another, the water in the tank will be warmer than from the flowing water supply.

When choosing a storage boiler of any kind, it is advisable to lean towards a water heater with a high efficiency. Whatever the type of combustible, a high-tech device will in practice be a more economical option. Although the price of the unit itself is high.

The most economical to use in our country are water heaters that use gas as a combustible substance. natural origin. The most expensive continue to be water heaters powered by electrical energy. Diesel and solid fuel are located somewhere in the middle in the price range. When it is necessary to comprehensively cover the house with heat and hot water supply, it is advisable to install gas water heater. If there is no access to gas, it is more rational and safer to use diesel fuel.

It must also be understood that mixing takes place in horizontal boilers. cold water with already heated enough perceptible way. But in modern models water heaters have protection that prevents such drops. Before buying, you need to find out if it is on a particular device. In vertical boilers, water is mixed into more comfortable conditions, which does not lead to sharp drops.

How to choose the right boiler for your home. What you should pay attention to when choosing a boiler: volume, shape, tank, electrical part. Video on choosing a boiler.

How to choose a boiler

Even in the spoiled public services major cities not everyone can boast of hot water supply. Annual checks heating networks, frequent accidents, repairs of neighbors with disconnection of the entire entrance from the water - this is familiar to many. In other cities, the situation is often even more bleak - in almost all settlements of Russia, the centralized supply of warm (hot to call it the language does not rise) water is either completely absent, or carried out for a maximum of several hours a day. Under such conditions, install autonomous system heating water is simply necessary. There are only 3 different options here: this is - gas boilers, as well as flow and storage electric heaters water. To install a boiler, you need a permit, which requires a lot of time to obtain (at best). Instantaneous water heater requires electrical wiring high power (about 10-20 kilowatts), so this option is not available to most residents of our country. It is logical that the best way to provide yourself with hot water is to install an electric storage water heater at home, also called a boiler. Let's find out how to choose a boiler.

general description

The boiler is a special heat-insulated tank. Its volume can be from 5 to 300 liters. The boiler has 1 or 2 tubular electric heaters (heaters) and a thermostat that turns off the heater when the water reaches the required temperature and turns it on when it cools down.

It is interesting: Full tank can warm up to maximum temperature(usually about 70-80°C) for a period of 15-20 minutes to 3 hours or more. Its effectiveness depends on the volume of the tank and the power of the device.

What should you pay attention to when choosing a boiler?

The right boiler is the key to comfort

Volume of the tank

Of course, the first question to ask yourself before buying a storage heater is how big a tank will be enough? The answer “the bigger the tank, the better” will not be correct here - in addition to the obvious economic factor associated with an impressive power consumption, a huge boiler will take up a lot of space in your house, in addition, it will have an average time to heat water longer than a small one . That is, rationally evaluate your needs.

If hot water at least sometimes appears in the pipes, and a meter is installed on it, you can independently calculate the required volume. The final value should be increased by 30%: the fact is that simultaneously with the selection of the heated liquid from the tank, cold water is added to it, and as a result of mixing, its output is about 70-75% of the nominal capacity.

If this method of determining the volume cannot be applied, you can use a special table.

Definition Table required volume boiler

It should be noted that the figures in the last column of the table are calculated on the basis that one person takes a bath, and after that there will be some more water left (for example, for washing dishes). Also keep in mind that the table contains data for urban residents - for summer cottages consumption is usually higher by about 25-50%.

Of course, the choice of the required volume of the boiler is also influenced by the installation possibilities. this device in a particular apartment. In addition to the available free space, it is important to pay attention to the wall on which the heater will be hung. As practice shows, the boiler is mainly installed in the bathroom, the walls in which do not always have the necessary strength to hang a device weighing tens (or even hundreds) of kilograms. Doubting the strength of the wall, you can put the heater on a specially made floor base.

Helpful Hint: In some cases, it will be more reasonable to buy 2 boilers. For example, with regular use of a sink and a rare shower, there is no need to maintain a 70-degree temperature in 100 liters of water all the time. In such a case, you can install the first heater for the bathroom (with a large volume), and the second one for washing (usually 15 liters is enough).

Vertical or horizontal?

Today they are produced as boilers intended for installation in horizontal or vertical position, and models that can be installed this way and that. However, if possible, it is advisable to choose a vertical heater. The fact is that hot and cold water in the tank are separated naturally- having less specific gravity the heated liquid rises, leaving the cold at the bottom. At the same time, the smaller total area zones of their contact, the more slowly the water will cool. Therefore, the boiler will have greater energy efficiency.

Modern horizontal boiler Thermex

That is, heaters with horizontal placement should be bought only when there is not enough space to install their vertical counterparts.

The form

The domestic market offers boilers representing 3 form factors:

• Ordinary (cylindrical in shape, resembling a barrel). Their diameter is related to height in a ratio of approximately 1:2.
• Thin models ("slim"). For them, this ratio is 1:2.5, 1:3, 1:5, etc.
• Rectangular.

Useful information: The latter type, as a rule, has a size comparable to cylindrical models, however, if necessary, it allows you to more advantageously fit the boiler into the space of a wall niche. "Slims", in addition to saving usable space in the house, also guarantee a slightly larger output of warm water.

Heaters of small volume (less than 15 liters), intended for installation under the sink, are mainly produced in cases rectangular shape.
Image 5: Compact boiler installed under the sink

Tank

Choosing a tank material is a rather difficult task. In many modern boilers the body is made either from steel with enamel or glass coating, or from special grades of stainless steel. Naturally, both types have both pros and cons.

Tanks with a steel coating are much more reliable than stainless counterparts. When choosing from a pair of heaters with approximately the same price, do not forget: the stainless body has less thick walls, therefore, they are not very durable. This is important if you have water supply network water hammers (instantaneous pressure surges) occur regularly. In this case, a less durable tank will have a high chance of getting damaged.

Electrolux water heaters with stainless steel tank

However, stainless steel has better corrosion resistance. At the same time, the coating on plain steel tanks may begin to crack over time, and the boiler will become unusable. The rate of wear of the coating depends, first of all, on the composition of water - an indicator of its hardness (the more salts it contains, the more scale is formed), as well as the presence of small abrasive particles (for example, miniature grains of sand).

Electrical part

Inside the tank of each boiler is a heating element, in fact, heating the liquid. Some models are equipped with a pair of independent heating elements at the same time, which is very convenient. In conditions of increased load on electrical network from other electrical appliances of the apartment, one heating element can be temporarily turned off, thereby preventing the operation of automatic protection. If other powerful devices are turned off, it will be more convenient to turn on both heaters, accelerating the heating of water.

Modern heaters have two types of heating elements - wet and dry. As it is easy to understand by the name, the first metal surface constantly in contact with the water in the tank.

This is interesting: Dry heating elements are separated from the water by sealed tubes - glass, ceramic or mineral. They are more durable and guarantee the highest level electrical safety. In addition, they form less scale. The disadvantage is the higher price.

TEN for a boiler

In order to ensure additional protection from corrosive processes on the surface of the tank, all models of boilers are equipped with electrochemical protection systems based on a sacrificial anode (most often magnesium). This element slowly oxidizes and dissolves during operation, guaranteeing the integrity of the tank metal.

The internal thermostat controls the on and off of the heater, maintaining the temperature specified by the user with an accuracy of approximately 4-5 ° C. In modern boilers, the thermostat operation temperature can be adjusted, but in some models the regulator is hidden under a protective cover. It would seem that this is not particularly convenient, but, as practice shows, the desire to turn the regulator knob disappears from the user after a few days - after fine-tuning the water heater according to individual needs, she is rarely disturbed.

Some boilers are also equipped with a built-in thermometer that shows the actual temperature in the tank on a pointer or digital indicator. During continuous operation given function becomes useful.

Complete set, installation, service

When choosing a boiler, also pay attention to whether related parts are included in the kit - they will still be needed for installation, and their separate purchase will result in an additional expense item. It is desirable, in addition to the heater itself, to obtain a power cable of the required length and a special blast valve (installed at the cold water inlet to protect the tank from excessive pressure).

Blasting valve with manual pressure relief

On your own, you will need to purchase fasteners, pipes for connection, the necessary connecting fittings, a drainage pipe (put on the valve and discharged into a nearby sink or directly into the sewer) and several valves. If possible, you should also install a filter for coarse cleaning water, as well as a separate circuit breaker for the water heater power line.

Helpful Hint: Usually the manufacturer does not object to the user installing the heater himself. However, keep in mind that in order to retain the possibility warranty repair, you must strictly comply with the requirements prescribed in the instructions.

As a rule, these requirements come down to the following set:

• The presence of a properly implemented protective grounding (note that common options such as "on the case apartment shield"Or generally" on the battery "are not considered as such).
• Correspondence of the real pressure of cold water inside the water supply to the working pressure of the heater you have chosen. If these values ​​do not match, a pressure reducer must be installed.

Adjustable Water Pressure Reducer

• It is necessary to connect the boiler to the water supply with plastic or metal-plastic pipes (use flexible rubber hoses forbidden).
• The presence of free space near the boiler for unhindered access to the device (the numbers are indicated in the instructions).

Take advantage of our advice - and you will be able to choose a boiler that perfectly meets all your requirements!

Household water heaters by the method of creation warm water are classified like this:

— electric water heaters;

- gas heaters.

Electric models of "water heaters" work in the same way as a kettle, powered by a single-phase or three-phase network. Water heaters using gas energy are connected to the main. Burning, the gas heats the heat exchangers where the water passes, or heats the tank with the liquid.

Global manufacturers produce many models of water heaters. Among them are Bosch and AEGhaustechnik, Electrolux and Timberk, Ariston and Thermex and many others. How to understand this variety and choose the right water heater for your home?

The second classification is according to the method of water circulation. All water heaters are divided into: systems with storage tanks and flow devices, pressure and non-pressure. Equipment parameters and capabilities vary, being directly dependent on the type of unit.

1) Accumulative gas water heaters

Heating water in a water heater tank using gas is the most economical way. But you can put such a unit only if the apartment has a gas main pipe. The durability and ease of use of a storage-type water heater compensates for such a relative disadvantage as low liquid pressure. The only significant disadvantage is the fact that a chimney is required in the room.

2) Flowing gas water heaters

Most often, they are called in one word - a column. When it is possible to supply gas, this is the most profitable way to heat water. This type of "water heaters" may differ from each other by the method of ignition.

• Piezo ignition - a piezo element is installed in the column, which creates a spark that ignites the igniter. This is good way ignition: convenient and economical.
• Electronic ignition - the device ignites, taking energy in batteries (accumulators), which need to be changed no more than a couple of times a year.
• Hydrogenerator ignition - it is understood that the device takes energy from a miniturbine, which is activated by the flow of passing fluid. The operation of the column begins immediately with the opening of the tap.

When choosing a gas flowing "water heater", you should pay attention to its safety. There must be a system that blocks the gas supply if the pressure is low, the burner is extinguished, or a chimney malfunction is suddenly detected.

Storage electric water heaters

These are devices that are a tank with a capacity of up to 150 liters with tubular heaters. They are commonly referred to as boilers. In the tank, the water heats up gradually, depending on the power of the device, the set temperature and the capacity of the tank. Average,

the total duration of heating is about 2 hours. If the water in the tank is used up, then you have to wait until it heats up. If you are purchasing a water heater for the kitchen, then a capacity of 30 to 50 liters is sufficient. For a family of 3 people, a water heater with a capacity of up to 100 liters will suffice. And for a country house with several points of hot water analysis, a water heater with a capacity of about 200 liters is required.

It is also important that the electric heater or heating element should be easily replaceable in case of failure of the old one. During operation, it is very convenient if the model is equipped with an electronic display with a temperature controller, once you set it, you can no longer return to this issue.

The device must be safe to use. To do this, it is equipped with an RCD function. It is very convenient if the model has a function to prevent boiling of water and protection against turning on without water.

Storage water heaters are ideal for the home, they are economical and quite reliable. But a serious drawback of such water heaters is their bulkiness. A tankless water heater is much smaller.

Instantaneous electric water heaters

Their principle of operation is as follows: water enters the flask with a heating element installed in it, where it is heated. The volume of the flask is approximately 1.5 liters. Choose a water heater for the house should be depending on the power of the device.

To heat water for the kitchen, you will need a device with a power of 2.5 to 3.5 kW. For heating water for a shower with a small pressure - power 8-9 kW. For a shower with medium pressure, a device power of 9 kW is required. AT winter period, due to the very low temperature of the incoming water, the efficiency of the water heater is greatly reduced. Main disadvantage such devices - this is their high power, sometimes an independent connection of an instantaneous water heater is required. The device consumes a large amount of electricity.

When buying an instantaneous water heater for your home, pay attention to the material of the heating element. The non-insulated wire helix works without scale even in hard water. The device must be reliably protected from moisture.

Pressure water heaters

These devices are able to withstand pressure up to 1 MPa. Pressure water heaters must be equipped with check and bleed valves. These devices work in combination with standard mixers.

Non-pressure water heaters

Such devices are designed for only one point of water intake. They cannot work together with standard faucets, but are equipped with their own shower head and their own faucet.

Video - how to choose an electric heater

How do you choose a water heater? details in comments.

A water heater is a very important item. In some cities, hot water is available all summer or the shutdown lasts only a couple of days. But not everyone is so lucky - many sit without a hot one for two weeks, or even three months - it all depends on the region and the promptness of public utilities. For example, outside the city there is often no hot water at all, so in the country you can’t do without a water heater. This device is a real lifesaver. We will tell you what water heaters are and outline the main things to consider when choosing these devices.

Our online store presents the most popular ones. They are of two types: and .

storage water heater

This is a sealed tank into which water is poured (in auto mode, from the water supply). Inside the tank is a heating element (TEN). The volume of household storage models can vary from a few liters to several tens of liters. In such a water heater there is always water heated to the temperature desired by the user, which can usually be adjusted. When the water is used up, a new, cold one enters the tank, the heater again brings the water to the required temperature and maintains it.

Heated water from a storage water heater can often be consumed through several draw-off points at the same time - this is a plus. However, you need to understand that the possibilities of the device are not unlimited: after spending a certain amount of hot water, you will need to wait until the water that comes from the water supply system heats up.

Tank volume of storage water heaters

Accumulative models come in various capacities. In our store, for example, small water heaters are presented -. There are also more capacious ones:, and even models with a capacity of . Which water heater is right for you depends on how high the water consumption in the family is and, of course, on which tank there is enough space for.

Storage water heater mounting type

By the way, about the placement of accumulative models. All of them are attached to the wall, however, there are those on sale in which only is implemented. There are water heaters that require. The most convenient in this sense - they can be mounted vertically or horizontally.

Tank inside

The metal tank of the storage water heater needs protection against corrosion. Therefore, manufacturers supply tanks various coatings. Most inexpensive option- plastic cover. Plastic does its job well, but it is not very durable due to high water temperatures.

The tank inside can be enameled or have a glass-ceramic coating. This is a good protection against corrosion, but over time due to high temperature and its differences on such coatings, microcracks may appear. Therefore, it is better not to heat the water in such tanks above 60 ° C.

It is best if the water heater tank is covered with titanium enamel or stainless steel inside. These are high-strength materials that will provide excellent long-term corrosion protection.

The design of many storage water heaters provides for a magnesium anode. Need it for extra corrosion protection. Magnesium donates electrons and neutralizes the environment, slowing down the processes of oxidation (rust). The magnesium anode (made in the form of a rod) needs to be replaced, it works in a water heater for 5-7 years - the service life depends on the chemical composition of the water and operating conditions.

Check valve and safety valve

Important element storage water heater design. The fact is that without water in the tank, the heating element can fail. Auto-shutoff without water (like electric kettles, for example) is not available in all models. The non-return valve solves the problem: there is water pressure - it opens, and when the supply stops for some reason, the valve closes the pipe and prevents the tank from remaining dry.

Safety valve is needed to protect the water heater from excessive pressure that occurs when the water is heated (expanded).

TEN in a storage water heater

Most water heaters have a conventional heating element - submersible. But there are models where it is “hidden” in a special flask and does not come into contact with water so that scale does not form on it. In general, this is a variation on the theme of the heater closed type at the electric kettle. Dry heater will not fail if you turn on the water heater without water. In addition, such a heating element is easier to change - you do not need to drain all the water from the tank.

Fast heating is one of the additional options. When activated, the heating element operates at full capacity, significantly reducing the heating time. Normally, the heating element operates in economy mode. Some manufacturers equip water heaters with two heating elements at once: one works constantly, the other is connected for fast heating.

When the water has heated up to the maximum set for a particular model, the heating element automatically turns off. This saves the device from damage.

Instantaneous water heater

Flow models are often used in small apartments, where there simply may not be room for a storage tank. They are much smaller than cumulative. The owner of such a device does not need to wait until the water heats up - this happens while the liquid passes through the heater. Opened the faucet - immediately running lukewarm. Until really hot water in flow heaters fails to heat up. But for washing, a quick morning shower or washing dishes, such heating is usually enough.

Most flow devices are designed to work with a single water point (kitchen or bathroom). There are much fewer models for several points on sale.

The disadvantage of instantaneous water heaters is that high power is needed to quickly heat water. Because of this, some of these models (with a power of 5-6 kW) require a separate connection; a large cross-section cable is required from the electrical panel or electric stove socket.

There are also gas instantaneous water heaters (the so-called columns). But they are much less popular, because you cannot install them in modern housing - gas is not supplied to new houses.

In the delivery set of flow models, there may be or. There are models that come with .

Non-pressure and pressure instantaneous water heater

According to the method of connection, instantaneous household electric water heaters are divided into non-pressure and pressure ones. Non-pressure water heaters need to be mounted next to the draw-off point, they serve only one of them.

The pressure ones are built into the water riser, they can serve several water points at once. For use in a city apartment, it is more logical to use pressurized water heater, and non-pressure is useful in a country house or in a garage.

water pressure

This indicator is especially relevant for flow models - if the pressure in the water supply is small, the heater may simply deteriorate, burn out, the water may boil, since the heat from the heating element will be removed too slowly in this case. Valid values pressure is always in the accompanying documents for the device.

Water heater performance

The higher the power, the greater the performance of the water heater (the ability to supply a certain volume of heated water per unit of time).

If speak about instantaneous water heaters, then models with a power of up to 5 kW are capable of delivering approximately 1.5 to 3 liters of warm water per minute. If you increase the pressure, the temperature of the water will decrease. 6-8 kW models can already produce 3-4 liters of warm water.

maximum heating

Storage water heaters are capable of heating water to a temperature of 80-90°C. This is quite enough for domestic needs. Heating occurs gradually, and the consumption of electricity is relatively small. When the desired temperature is reached, the water heater will maintain it.

In instantaneous water heaters, the temperature maximum is lower - about 60 ° C. But this is at a certain temperature of the cold water entering the device (indicated in the instruction manual) and the intensity of its consumption. So, for example, in winter, in conditions Russian climate, the instantaneous water heater is unlikely to reach its temperature maximum.

Heating power

It is logical that the higher the power, the faster the heating. For storage models, power, as a rule, directly correlates with the volume of the tank: the larger it is, the more powerful the water heater.

In our online store, storage models of different capacities are presented:, as well as.

As for flow-through water heaters, then, as already noted, their power is quite high, which requires special works when connected to the mains. The higher the power of such a heater, the greater the volume of water per minute it can heat. We sell models of relatively low power for such devices -. There are more powerful:, and even more powerful.

Water heater control type

Modern version- water heater with electronic control. The built-in electronic unit automatically measures the operating parameters of the water heater, the inlet water temperature, regulates the power of the device, necessary to quickly reach the set temperature and maintain it in the future.

Models with electronic control are simpler to ensure that the set temperature is maintained until the flow of water reaches a certain level. If the flow becomes stronger, then the water temperature becomes unstable. More expensive models are equipped with a limiter that reduces the flow of water if necessary. Such water heaters are often equipped with an LCD display that visualizes the process of controlling the device.

In instantaneous water heaters, the water flow sensor is the main element of hydraulic control. The user opens the tap, a certain pressure of water arises, the heaters turn on (one of the power levels). When the faucet is closed, the heaters also turn off. Water heaters with hydraulic control usually have two power levels - for operation in different time of the year. Models with hydraulic control are cheaper than electronic ones, but the quality of heating depends on the flow rate, the power of the device and the temperature of the incoming water.

Main manufacturers

Our online store presents water heaters from several manufacturers with extensive experience in the production of such equipment and a good reputation among users. These are cumulative brand models