Consumers using centralized hot water supply remember that most often in summer (and sometimes in other seasons) there is no hot water. Happy owners of private country houses also need to take care of ways to heat water for household and personal needs. Therefore, the question of how to choose a water heater becomes almost every owner.

The option of heating water with gas (geyser) is the most economical option, but it is not always possible to supply gas. You can also use a boiler that runs on oil distillation products. For such a design, a separate room will be required, and in apartments it is completely prohibited.

Since electricity is available in almost all homes, the option of heating water with an electric water heater remains the most relevant. Water heaters of this type are divided into two types: storage and flow. At first glance, they differ only in size: the accumulative one is larger (depending on the volume of the tank), and the flow one is the size of a shoe box. Let's take a closer look at these two types.

Accumulative (capacitive) water heater

The storage water heater consists of a tank filled with water, in which a tubular electric heater is installed. The heating element heats water in the range from 35 to 85 degrees Celsius and turns off (the temperature is set by the user). When the water temperature in the tank drops by 0.5 degrees, the water heater automatically starts heating it to the specified mark.

Instantaneous water heater

The instantaneous water heater works on a different principle - cold water from the water supply passes through a tube (of a tubular electric heater) and, depending on the amount of hot water consumed, turns on a certain number of heating elements. Flowing water heaters do not have their own tank, all the water is heated not in a container, but when passing through a tube - with heating elements.

Compare instantaneous and storage water heaters

Before buying a water heater, it is important to decide what type you need and what are the main differences between these two devices.

	storage water heater	Instantaneous water heater
Weight and size	Depending on the volume of the tank (average 80 l and the size of a washing machine)	Small size and weight (from 2 kg and the size of a shoe box)
Number of users	Medium tanks are designed for two or more people + hot water for the kitchen	With an increase in water consumption, the power of the device increases.
Working conditions	Requires connection to a standard outlet for operation.	There is a certain dependence on the power of the electrical network or gas pressure
Economy	Approximately the same	Approximately the same

A profitable solution is to choose a storage water heater, for the operation of which you will need from 1 to 2.5 kW of electricity. Such a device is quite enough to provide heated water (from 60-75 ° C) to an apartment or a small private house.

How to choose a quality storage boiler

In this section, we will consider in more detail the characteristics of the storage water heater, which will help determine the choice of a quality device. Depending on the increase in the volume and quality of the boiler materials, the price of the water heater also increases.

How to choose the volume of the boiler

The most valuable parameter of a storage water heater is its volume. Consider the volumes of boilers sufficient for domestic needs (averaged indicators):

• small capacitive water heaters, from 10 to 15 liters, are used for washing dishes and washbasins (such a volume may not be enough for a shower), they are usually mounted in the same place - under / above the sink or washbasin;
• small 30-liter boilers are used by bachelors, and for women who pay more attention to water procedures, this volume may not be enough;
• storage boilers from 50 to 100 liters are most often used in apartments. This volume is sufficient for both a married couple (50-80 l) and for a large family with children (80-100 l);
• large water heaters with a capacity of 150 l - for large apartments and medium-sized houses. Used in families who prefer to take a bath instead of a shower;
• the largest water heaters (200 l) are used to provide hot water to large apartments or a private house. This volume of capacity is enough to provide a family of 6-8 people. A huge boiler is installed on the floor, because due to the large weight, mounting on the wall is unacceptable according to safety regulations.

When choosing a water heater, you should not choose a model, guided only by volume indicators. For larger boilers, more time will be required for heating. Sometimes it is more profitable, for example, to install a water heater with a volume of 50-80 liters in the bathroom, and another one, of a small volume, for hot water in the kitchen.

Heating power and time

Electric water heaters work on the principle of "boiler". Depending on the power of the heating element (an electric heater in the form of a metal tube filled with a heat-conducting electrical insulator) and on the volume of the boiler capacity, the rate of heating cold water to the specified temperature also depends.

Tens are divided into:

1. "Wet" heating element. Inside with a container of water, a heater made of a copper tube is immersed. Over time, due to direct contact with water, the heater becomes covered with a layer of scale, as a result of which the time for heating water increases significantly. Another disadvantage of using a water heater with a “wet” heating element is galvanic couple (electrochemical corrosion), due to a chemical reaction between the heating element and the tank walls. Not recommended for use with mineralized water;
2. "Dry" heating element. The heating tube is placed in a protective flask or casing and does not have direct contact with water. Thanks to the protection, the metal tube does not accumulate scale and electrochemical corrosion does not occur. Water heaters with a "dry" heating element have a longer service life.

Power distribution, depending on the volume of the water heater tank:

• water heaters with a 30 liter tank use power from 1 to 1.5 kW;
• boilers with a volume of 50-80 liters use power from 1.5 to 2.0 kW;
• large devices with a capacity of 100-200 liters with a power of 2.0 to 2.5 kW.

The speed of water heating depends on the capacity of the power supply, if the power supply to the outlet is limited to 2 kW, then, accordingly, large models of water heaters (150-200 l) will spend more time heating than indicated in the specifications.

The amount of time required for heating water (75-80 ° C) in models of various volumes:

• 30 liter boiler with a power consumption of 1-1.5 kW, heating time - 1-1.5 hours;
• 50 liter boiler with a power consumption of 1.5 kW, heating time - 2 hours;
• 120 liter boiler with a power consumption of 2 kW, heating time - 4 hours.

From these we get: you should not chase after a large volume, from 50 to 80 liters is enough for an average family, and the heating rate is almost two times different from a model with one and a half volume.

Types of the inner surface of the boiler

Models of water heaters with an internal surface made of glass porcelain and enamel are distinguished by a good price-quality ratio. The disadvantage of such boilers is considered to be sensitivity to sudden changes in temperature, as a result of which a crack may form. This problem can be solved by lowering the upper temperature mark to 60 ° C, but in such a situation it will often be necessary to heat the water.

A titanium-coated stainless steel boiler will differ significantly from an enamelled water heater. As a result, due to the durability of stainless steel, the life of the water heater increases.

Extra options

When buying a storage water heater, you need to pay attention to related products and equipment, which include:

• The presence of additional additives in the container coating material (for example, zirconium), which additionally disinfect water.
• A safety valve that protects the water heater in case of a sharp jump in water pressure in the pipes.
• A set of brackets or anchors for fixing the boiler to the wall or floor.
• The presence in the kit of an adapter for 380 V (if such is meant for connecting to the network), or a standard plug for connecting to a household network.
• Protective system against power surges.
• Automatic shutdown system of the water heater in the absence of water or voltage in the network.
• Purifying water filters.
• Pressure reducer - to reduce the water pressure when it enters the tank, in case of increased pressure in the water supply system (if the pressure at the entrance to the apartment exceeds 5 bar).

The best models of water heaters

It is easy to get lost in the variety of boiler models. Considering all the characteristics (water heating time, price, service life, design) and many other features, your attention is a list of the best models from reliable manufacturers:

• GORENJE;
• ARISTON;
• NOVATEC;
• ZANUSSI;
• DRAZICE.

Which model will suit your preferences, you will have to decide for yourself, the characteristics and important points are described in the article, and the design and price are the personal choice of everyone.

To provide hot water to a family of up to 4 people during maintenance work in a city apartment or in a private house in the absence of centralized communications, a boiler with a tank volume of 80 liters is enough. But not always the space of the room allows you to install a vertical model. If a wide but small place is left free on the wall, consider the option of a horizontal water heater of 80 liters.

Some manufacturers initially offer devices with this mounting method, devices from other brands require universal mounting. Consider several boilers of various brands that are in high demand among Russian consumers.

Important! Since the quality of water in centralized communications is low, the best solution for a family where health is taken seriously is to purchase a boiler with a disinfection function. In such models, the possibility of the formation and development of pathogens is maximally prevented.

Thermex

The Italian brand Thermex has been successfully present on the market since 1949. The brand is widely represented in many countries of the world, where it has a steady demand. The manufacturer offers only one storage water heater Termex 80 liters horizontal flat, but it has extremely positive reviews due to the high quality of technology, its own developments, reliability and durability.

The body of this 80-liter horizontal boiler is made of metal, the pipe connection is lower. The stainless steel heating tank has an enamel finish. The productivity of the device is 2 liters per minute. The control is carried out manually from the front panel, the status of the heater is reported by the indicator. Functionality - basic, owner rating - 3 points.

Affordable price, performance and reliability characterize all heaters of the Italian brand. Stylish design will be relevant in any room. The production uses unique materials with high performance parameters, and the quality control of the finished product is carried out.

Electrolux

Horizontal water heaters 80 liters Electrolux - the technique of a well-known Swedish brand. They cannot be called affordable, but this disadvantage is fully compensated in operation. Since the manufacturer is one of the recognized leaders in the industry, you can count on decent quality heaters.

This budget Electrolux model has a simple and reliable design. The functionality is basic, but effective corrosion protection is provided using the Protect Tank technology, coupled with an enlarged magnesium cathode. Compact size and stylish design allow you to place the device in rooms with any size and interior. The control unit allows you to accurately determine the settings. Owners rating - 3 points.

The EWH 80 Formax model uses X-Heat heating technology from two heating elements. The device is equipped with a crane for ease of use. The indicator allows you to monitor the status. The model is made of plastic and metal. There are three modes of operation, each with its own security system. Local design, lack of advanced functionality and reliability led to the owner's rating of 4 points.

The heating tank of the model is made of stainless steel with a large amount of nickel and chromium, which makes it highly resistant to corrosion. The simple design is reliable and will last as long as possible. The current state of the device is determined by the indicators. The model has the ability to use only half the power, which allows you to install it on an object with weak electricity parameters or save electricity. This horizontal water heater of 80 liters was rated 4 points.

All models are reliable, productive and easy to use, the choice of the optimal device can be made according to your preferences for control and functionality. Simple heaters with mechanical control are more reliable and durable, devices with an electronic module will provide maximum comfort. Electrolux boilers are adapted to Russian operating conditions, the minimum water pressure can be 0.8 bar.

Ariston

The Italian manufacturer offers universal models of Ariston water heaters 80 liters with the possibility of horizontal installation. The devices implement the most advanced technologies at the request of consumers in terms of energy saving, safety, disinfection, functionality and long service life. In terms of sales, the devices are in the TOP-10, both in Europe and in Russia.

The model economically consumes electricity, effectively retains heat and heats water relatively quickly. The storage tank is made of stainless steel, the inner surface is covered with enamel. The control is carried out using an electronic control unit, which allows you to adjust the settings with great accuracy. The tubular type heater prepares water evenly. The easy-to-operate heater was rated 4 points.

The device is characterized by simplicity of design, basic functionality, performance and durability. Management and control is carried out by an electronic module with a 3-stage protection system, including against overheating, freezing and other risks. The actual functionality is an antibacterial system that prevents the appearance and development of microorganisms. There is a function of accelerated heating. The insulation is very dense, which leads to energy savings and minimal heat losses. Rating - 4 points.

The manufacturer has implemented the most modern technologies in this model. A feature of the device is the double tank design, which minimizes heat loss. Control and management are carried out by the electronic module, the current information is displayed on the display. The CU automatically optimizes user-selected temperature settings and energy costs. Consumers rated the heater at 5 points.

Important! Almost all models use a magnesium anode. This module must be changed from time to time to increase the life of the appliance and the quality of hot water. The deadlines should be checked with the seller.

Summarizing

brand and model	Power in kW	Max water pressure in bar	Max heating temperature in degrees C	Heating time up to +40 degrees C	Dimensions in cm and weight in kg
ERS H 80 Silverheat					44,5*75,1*45,9/ 21,2
Electrolux EWH Magnum Slim Unifix					38,5*99,0*38,5/ 24
Ariston ABS Velis EVO PW					50,6*106,6*27,5/ 27
Ariston ABS VLS INOX PW					49,0*109,0*27,0/ 26
Electrolux EWH Formex					45,4*72,9*46,0/ 27,5
Electrolux EWH 80 Royal Flash					55,5*86,0*35,0/ 23
Ariston ABS Velis EVO QH					57,0*116,0*34,0/ 28

The efficiency and durability of any household appliances largely depends on competent professional installation. Masters provide official documents that will allow you to quickly use the services of branded service centers in the event of a device breakdown.

Now a lot of houses (both private and multi-apartment) are made of aerated concrete. This technology has many undoubted advantages, for example, it is light, breathable, warm. However, at first glance, it is not so durable; indeed, it can be cut with an ordinary saw. It's soft and crumbles easily! This is what scares, for example, is it possible to hang (fix) something on such a wall, say a boiler (in our opinion, a water heater), I mean a storage, not a flow option. After all, in order to take a shower normally, you need to take at least 50 liters, but will the wall withstand it? Actually, there will be another article about this + a video version at the end. So let's read and watch...

Water is becoming more expensive, so in order to save on it, it is often beneficial to hang a boiler. However, if you can hang on a brick wall, as well as on concrete (slabs) without much fear, both materials are very durable. That is an aerated concrete wall, it cannot always withstand such a weight, there are many cases on the network when a seemingly not even heavy water heater of 30-50 liters fell, tearing pieces out of the wall! So what to do, you can hang or not?

How much does a water heater weigh

Many mistakenly think that the water heater weighs "at face value." That is, if you took, say, 50 liters, then the total weight is about 50 kilograms! But this is extremely wrong, the weight of the water heater itself is also not small. I will give approximate weights by points:

• 30 liters on average, only the water heater itself will weigh about 13 - 15 kg
• 50l - 17 - 20 kilograms
• 80l - 22 - 24kg
• 100l - 24 - 26kg
• 120l - 26 - 30kg
• 150l - about 35kg
• 200l - about 57kg
• 300l - about 74kg

Of course, a lot depends on the manufacturer - what thickness of steel he used (as well as what material - ordinary steel or stainless steel), how much insulation he put in, how much the plastic tank weighs, how much electronic filling. BUT on average, the weight of the water heater is just that.

That is, if you summarize a little, it turns out - a boiler for 50 liters (20 kg) + water in it is another 50 kg, thus - total weight will be about 70kg .

We disassemble aerated concrete

Despite the apparent softness of the aerated concrete material (it can really be cut with a hacksaw), it can withstand fairly large loads. However, not all manufacturers make the same material. What I mean is that before you calculate how much weight the wall can support, you need to know the density of your aerated concrete. It is also different, and the withstand load will depend on this.

The minimum density that I myself have seen is 300 kg/m3. Such blocks are mainly taken for private houses and small buildings up to two floors.

The average density is 400 kg / m3, with such blocks it is possible to build houses up to three floors without any reinforcement.

The maximum density is 500 kg / m3, such material can be used up to 4 floors, without any reinforcement. That is, the blocks themselves are made as load-bearing walls.

Of course, perhaps the density is even higher, but I personally have not had to deal with this.

Guys, there are two types of load, this is the so-called- to put it bluntly, if you hang the heater to the ceiling, screw the bolts into the ceiling, then the boiler will try to pull them out.

, this is when the bolts are twisted into the wall, and the boiler tries to break or cut them, as it were. The length is not so important here (although it should be sufficient), the density of the material is important here, as well as the thickness of the fasteners - bolts.

Often, boilers are hung on capital, street or driveway walls. Their thickness is at least 25 cm (250 mm), and street walls can vary from 400 to 500 mm (almost half a meter). ON THIN WALLS FROM WHICH PARTITIONS ARE MADE, HANGING A BOILER - IS NOT RECOMMENDED ESPECIALLY LARGE CAPACITY! Partition walls are often only 10 cm thick, they cannot support a lot of weight, and they really collapse.

About the shear load and density, I will take walls with a thickness of 25 cm, as well as one bolt with a diameter of 8 mm:

300 kg/m3 - withstands 50 kg

400 kg/m3 - about 70 kg

500 kg/m3 - about 90 kg

I have been looking for such information for a long time on various manufacturers' websites, maybe it is not entirely accurate, but here I indicated with a margin. On one resource of the manufacturer, it was said that a density of 300 kg / m3, if a bolt with a diameter of 8 mm and a length of 100 mm is screwed into it, can generally withstand about 100 kg of shear load!

That is, if you hang a water heater of 50 liters (and as we calculated from above it is about 70 kg), they usually hang it on 2 or 4 bolts, then even a wall with a density of 300 kg / m3 will withstand it EASILY! Indeed, in the version with 2 bolts, the withstand load on the cut will be about 100 kg, and with 4 bolts, 200 kg! If the density is taken at 400 - 500 kg / m3, then the withstand load is much greater, so a wall of 500 (4 bolts) can withstand up to 400 kg.

My version

I hung it on a load-bearing wall of 50 cm, with a density of 400 - 500 kg / m3, the manufacturer indicates so on his website. True, I have a 120 liter boiler, and it also weighs about 25 kg, that is, it is necessary to withstand a total weight of 145 - 150 kg. True, 4 bolts are used for fastening, large weights are already from 80 kg, 4 fasteners are used!

What I bought are special dowel nails for aerated concrete, they look like special screws (they have protruding parts on the sides). A hole is drilled and it is hammered in there, and the side parts, as it were, cut “slots” in aerated concrete, this allows the dowel to sit firmly enough.

What else was done - I bought a dowel with a size of 10 X 70mm (there was simply no larger size), and I bought "plumbing bolts" with large washers, 8 X 100mm. Why did the bolt take longer? I read on one forum that such a combination gives even greater strength to the fastening, the bolt passes through the dowel, and at the end, when it cuts through it, it presses the tail parts of the plastic even more strongly!

Actually, I took the dimensions from the water heater, drilled 4 holes 10 X 130 mm, hammered the dowels there and screwed in the “plumbing bolts”. After I hung the boiler and fixed it empty on the wall, VERY STRONGLY!

Then we turn on the water and observe, of course, I was a little worried, but everything is fine. ON 4 bolts, the boiler with a total weight of 145 - 150 kg, holds up perfectly, has been weighing for 4 months now, so you can hang it on aerated concrete! The main thing is to be smart! You can not hang on the walls of aerated concrete 10 cm (interior), water heaters more than 30 kg - THIS IS DANGEROUS!

Now the video version of the article, we are watching.

I end here, I think my article was useful to you, read our construction site.

With insufficiently efficient operation of the local thermal power plant or during the seasonal shutdown of hot water, a water heater will be an indispensable device in every home. Choose a machine that will not only do the job, but also be cost-effective.

How to choose a water heater

There is no definite answer which water heater will be needed personally for your needs, since manufacturers offer devices whose designs are implemented on the same operating principles as those of competitors.

What factors should be considered when choosing a water heater?

• Heater type. The storage water heater is equipped with a heat-insulated tank in which water is stored. The flow heater is more compact and provides hot water as needed. Such a device is more economical, but provides a limited flow per unit of time.
• Source for heating water. Gas boilers require less energy and are more budget-friendly than electric boilers, although they may be more expensive at the time of purchase. Indirect heating devices need to be connected to a separate heating boiler, which complicates the installation. Solar heating systems are also available.
• Storage water heater capacity. To determine the capacity, consider the number of people in the family, the cost of showers and baths, and the presence of water-consuming devices such as a washing machine and dishwasher. In order to heat the water to the required temperature, the storage device will take some time. After the tank is used up, you will also have to wait until a new portion of hot water.
• The flow rate of the passed water at the instantaneous water heater. The flow device does not have a hot water storage tank. The efficiency of such a heater is determined by the number of liters per minute.

Please note that some instantaneous water heaters are designed for a single draw-off point and you will not be able to take a shower if the dishes are being washed in the kitchen at that time. Therefore, in a family of several people, it is more reasonable to provide a model adapted to several water supply points.

• Place for installation. Storage water heaters will require dedicated space to be placed vertically on the wall or horizontally under the ceiling. Flowers are more compact, they can be built directly under the sink. Models with very large tanks will require floor mounting.
• Top or bottom water connection. Depending on the location of the water heater, a particular type of connection may be preferable. For example, if you want to build a heater into the cabinet under the kitchen sink, it is more convenient to use the top pipe connection.
• Ignition method. Automatic ignition will turn on the device when the tap is opened. Piezo ignition or battery powered will require pressing a button to light the burner to heat the gas boiler.
• Power. For a storage water heater, high power means a fast heating rate of the tank. In the case of an instantaneous water heater, this parameter is important to maintain the normal flow rate of the heated liquid.

Keep in mind that high power machines will require a dedicated circuit breaker in the switchboard and sometimes a three-phase connection.

• Installation and connection of the device. Many types of boilers can be installed independently due to simple installation. Find out if the self-installation heater service warranty is still valid. Otherwise, contact the professionals.

What details can you ignore when buying a water heater?

• Antiscale function. Some manufacturers advertise models with reduced formation of mineral scale that occurs at the bottom of the tank when boiling. Although mineralization shortens the life of the heating element, you should not overpay for the operation of this device.

The service life of the heating element is primarily determined by the hardness of the water. The higher the stiffness, the more often the heater will require maintenance.

• Mechanical or electronic control. Mechanical button heaters provide limited settings, but electronic panels are not always sensitive to pressure with wet fingers. Some models are equipped with a remote control.
• Digital screen. This item is electronically controlled and displays the current water temperature. Some models allow you to set an economical consumption mode and individual heating temperatures for each family member by timer.
• Antibacterial tank lining. This is, rather, a marketing ploy for storage-type water heaters, since if water is stored in a tank for a long time without use, the liquid will bloom. Therefore, if the water heater is not used for a long time, it is recommended to drain the water from the tank.

best instantaneous water heater

Electrolux NPX 8 Flow Active- an electric flow model that provides water to several points. The electronic control controls a stable temperature even with pressure fluctuations.

The heating element is made of stainless steel, insulated from water and does not form scale. The device is equipped with an overheat protection sensor. Automatic on/off and self-diagnostic function are provided.

Vertical wall mounting with bottom connection is allowed. For control, 6 modes of controlling the power of the device are used, the thermometer displays the water temperature readings on the liquid crystal screen.

Characteristics

• Water flow: 4.2 l/min.
• Size: 37 x 22.6 x 8.8 cm.
• Power: 8.8 kW.
• Heating temperature: 30–60 0 С.
• Weight: 2.5 kg.
• LCD screen.
• Touch control.

pros

• Easy installation and operation.
• Indication of temperature, power and pressure on the LCD screen.
• Small weight and dimensions.
• Scale protection.

Minuses

• High price.
• It independently lowers the temperature when the power decreases, but the reverse process is not automated and requires manual control.

Customer Reviews

The build quality and compactness of the device are noted. The device copes with the functions, quickly heats the water and works stably. However, it will be necessary to provide a separate machine for switching on; in rare cases, a restart of the thermal relay is necessary.

The best horizontal water heater

Thermex Champion ER 80H Silverheat- accumulative model of a round design. The heater is installed horizontally on the wall with the bottom piping. Bio-glass porcelain is used to cover the inner steel tank.

The model is equipped with a magnesium anode and single-phase power supply. The device is protected from overheating and the temperature limit of the heated water.

Characteristics

• Tank volume: 80 l.
• Water flow: 3 l/min.
• Size: 44.5 x 80.3 x 45.9 cm.
• Power: 1.5 kW.
• Weight: 21.2 kg.

pros

• Easy installation and management.
• Economical in terms of price and energy consumption.
• Capacious reservoir.
• Does not require a separate machine for connection.

Minuses

• Low power.
• The magnesium anode needs to be replaced every 1-2 years.
• There is no digital indicator on the temperature indicator.

Customer Reviews

There is an optimal price-quality ratio and a large tank capacity. Horizontal placement allows this model to be installed in small bathrooms. The anode is easy to replace on your own, but the heating indicator is uninformative.

The best water heater for a summer residence

Bosch Therm 4000 WR10-2P- a flowing gas model that operates on liquefied or natural gas. The device is equipped with a vertical wall mount with a lower piping connection.

Automatic protection of the heater against overheating, back draft sensor and flame control are provided. The stainless steel burner works even with reduced gas pressure. The service life of the copper heat exchanger is declared by the manufacturer for 15 years.

The water heater provides good pressure and stable temperature even with low pressure in the water supply. The duration of continuous operation of the device is not limited.

Characteristics

• Heating temperature: 35–60 0 С.
• Power: 17.4 kW.
• Water flow: 10 l/min.
• Piezo ignition / battery ignition.
• Gas consumption: 2.1 cu. m./hour.
• Operating pressure: 12 bar.
• Weight: 11 kg.
• Size: 31 x 58 x 22 cm.

pros

• Work on the liquefied or natural gas is provided.
• Two types of ignition are convenient for autonomous use.
• Compact dimensions.
• High power.
• Easy to maintain.

Minuses

• Bad water supply.
• High price.
• Requires a separate machine to connect.

Customer Reviews

According to reviews, it is characterized as a reliable water heater of high-quality construction. Easy to operate, compact, stable and quiet operation. It heats water quickly, but due to the high power it is better to use a separate machine.

The device has an adjustable temperature and good pressure, but wide hoses are required. There are complaints about the operation of the piezo ignition, which does not always work, and complaints about the weak heat exchanger.

The best pool water heater

Pahlen Hi-Flow Titanium- a cylindrical heat exchanger with a spiral heating element, which is made of titanium and can be used in salt and chlorinated water. The kit includes fasteners made of acid-resistant stainless steel. The device is used for pools up to 300 sq. m.

Characteristics

• Power: 75 kW.
• Size: 13.9 x 13.9 x 75.4 cm.
• Water flow: 45 l/min.
• Operating water temperature: 2–30 0 С.
• Heating temperature: 60–90 0 С.
• Weight: 2.9 kg.

pros

• Application in conditions of increased formation of corrosion.
• Small weight and dimensions.

Minuses

• Compliance with recommendations on the qualitative composition of water is required.
• An external temperature sensor is required.

Customer Reviews

It is noted that horizontal and vertical installation of the device is permissible, provided that it is filled with water. The heat exchanger is supplied in three power modes, which allows using this model for pools of different sizes.

best shower water heater

Timberk Primalux WHEL-3 OS- flow electric model for one collapsible point. The heater is mounted on a wall with bottom piping and is equipped with a copper heating element with a protective anti-corrosion coating.

The automatic sensor is triggered when water enters. The device is equipped with protection against overheating and a filter for water purification. The package includes a shower head, a cable with a plug, a shower hose.

Characteristics

• Water flow: 1.9 l/min.
• Size: 27.2 x 15.9 x 11.2 cm.
• Power: 3.5 kW.
• Heating temperature: 60 0 С.
• Weight: 1.35 kg.

pros

• Easy installation and use.
• Small size and weight.
• No connection to a separate machine is required.
• Low cost.

Minuses

• Seasonal use during the summer period with a water temperature of at least 16 0 С.
• Low power.

Customer Reviews

The kit includes all parts required for mounting and installation. The device works stably by turning it on / off, heats the water to a comfortable temperature, and works quietly.

The compact heater is suitable for a small bathroom because it does not require much space. It is noted that the cord included in the kit is short, with a weak pressure of water, problems with heating are detected.

The best water heater for the kitchen

AEG MP 8 is a flow-through electric pressure type model with a bottom water connection. The design includes two heating elements in a copper flask coated against scale. Electronic control provided.

The device automatically turns on and off, the power is adjusted depending on the water supply. The device is equipped with overheating protection and can supply multiple outlets. The control unit is water cooled.

Characteristics

• Operating pressure: 10 bar.
• Power: 8 kW.
• Size: 36 x 21 x 9.5 cm.
• Heating temperature: 38 0 С.
• Water flow: 5.7 l/min.
• Weight: 2.4 kg.

pros

• Small size and weight.
• High power.

Minuses

• High price.
• Requires a separate machine to connect.
• Low heating temperature.

Customer Reviews

This is a powerful water heater of compact size, which is easy to integrate into a technological niche. A reliable device that copes with the task of heating water, the heating temperature is enough for domestic needs for use in the kitchen. Of the shortcomings, unregulated power is noted.

Best bathroom water heater

Stiebel Eltron HFA/EB 80 Z- accumulative electric model of pressure type. The device is equipped with a copper heating element and a replaceable magnesium anode with anti-corrosion coating. The tank is thermally insulated, the inner tank is made 2 mm thick and enameled with a layer of 0.4 mm.

The button for fast heating of water, protection against freezing and an overheat is provided. The heating mode can be set to two-tariff mode to use electricity at a discounted rate. Multiple water distribution points are allowed.

Characteristics

• Volume: 80 l.
• Heating temperature: 35–82 0 С.
• Power: 2–6 kW.
• Size: 41 x 102 x 42 cm.
• Operating pressure: 6 atm.
• Weight: 36 kg.

pros

• High power.
• The maximum heating temperature is higher than many other models.

Minuses

• High price.
• Large dimensions.
• Safety and non-return valves for safe operation of the device must be purchased separately.

Customer Reviews

This is a reliable heater of good design. It is fully automated and requires no supervision. No complex installation required. The device quickly heats water, it is convenient to use it in economy mode. Power for accelerated heating of water is estimated as optimal.

best storage water heater

Timberk Pafoss SWH FSL1 50V- cumulative electric model, which is connected to several points of water intake. The device is equipped with protection against overpressure, overheating and dry heating. The design uses a magnesium anode, the inner tank is 1.2 mm thick and made of stainless steel.

The water heater is mounted vertically on the wall with a lower water supply. The tank is equipped with thermal insulation and does not heat up during use. Maintenance and repairs are possible with a connected water supply.

Characteristics

• Tank volume: 50 l.
• Water consumption: 13 l/min.
• Power: 2 kW.
• Size: 87.5 x 43.5 x 23.8 cm.
• Heating temperature: 75 0 С.
• Weight: 13.4 kg.

pros

• No separate machine required.
• Capacious reservoir.
• Acceptable price.

Minuses

• Low power.
• Large dimensions.

Customer Reviews

The device copes well with the task of heating water. The large tank capacity is suitable for two people. The build quality is undeniable. The model is easy to use, does not heat up during use.

The best flat water heater

Thermex Flat Diamond Touch ID 100V– electric accumulative model of a flat design. The heater is wall-mounted vertically with bottom plumbing and can supply water to several faucets. The internal tank is made of stainless steel, magnesium anode.

The accelerated heating of water is provided. The model is equipped with a timer, which sets the heating time, and a liquid crystal display for electronic control and temperature indication.

Characteristics

• Volume: 100 l.
• Size: 124.5 x 49.3 x 27 cm.
• Power: 1.3–2 kW.
• Heating temperature: 75 0 С.
• Weight: 25.2 kg.

pros

• Capacious reservoir.
• Flat body design.
• Easy installation.

Minuses

• An adapter is required between the model pipe and the water pipes.
• Internal structural elements require annual replacement.
• Low power.

Customer Reviews

The flat design allows it to be compactly integrated into a limited space. Pressing buttons on the control panel is duplicated by sound. The timer is set to only one time.

There are complaints about the correct display of the water temperature on the indicator of the device and the quality of the heating elements, which need to be replaced regularly. Fingerprints are visible on the shiny case.

The best water heater with a dry heating element

Electrolux EWH 80 Formax DL– cumulative electrical model. The inner tank is treated with an anti-corrosion glass enamel coating. The device is equipped with electronic control and two independent heating elements of a special dry design that do not come into contact with water. The heating elements are isolated by a metal casing, if one heating element fails, the second one will continue to work.

The model is installed, if necessary, vertically or horizontally, which makes it universal for use in any premises. The device is equipped with a special function for programming three temperature values.

An economical mode of operation of the heater is provided, in which the water temperature is limited to 55 degrees. There is protection against overpressure and overheating. The outer tank is thermally insulated with a layer of polyurethane foam 22 mm thick.

Characteristics

• Tank volume: 80 l.
• Power: 0.8–2 kW.
• Heating temperature: 30–75 0 С.
• Weight: 27.5 kg.
• Size: 72.9 x 45.4 x 46 cm.

pros

• Horizontal and vertical mounting.
• When the power is turned off, the individual settings are retained until the next power on.
• Three levels of power.
• No separate connection is required.

Minuses

• Large dimensions.
• Confusing electronic controls.

In many regions, this has long become a habit. If there is no hot water all summer or even for several weeks, the solution is obvious. You need to buy a boiler. An electric water heater provides additional comfort and allows you not to depend on the public hot water systems.

The boiler maintains the required water temperature, while having a certain supply of it. There is a large selection of boilers on the Ukrainian market. But in order to choose the right boiler, you need to take into account many nuances.

What is a boiler

The water heater itself is a tank in which cold water is heated to a predetermined temperature using an electric heating element - a heating element.

There are two types of heating element: wet heating element - immersed in water, dry heating element - has no contact with water. Experts believe that the second option is better than the first, since scale does not form on it, which means it will last longer. Dry heating element is located in special flasks and does not come into direct contact with water. Usually dry heating is recommended to be used when the water contains a lot of salts. In this case, the wet heating element will fail much earlier.

The type of heating element is not the only thing that affects how much a boiler costs. Dry heating element will cost more than wet heating element. There are other parameters, due to which the price difference for different types of boiler reaches several thousand hryvnias.

The boiler is round and rectangular, narrow and wide. Basically, rectangular models are more convenient. Narrow boiler - suitable for a niche or cabinet. In this case, a narrow boiler can be both rectangular and oval-round. Before you buy a boiler, you need to figure out where you will install it. Depending on this, you have to make a choice of a boiler.

How does a boiler work

Once in the tank, the water is heated to a predetermined temperature, after which the thermostat turns off the heater. The desired temperature can be set. In the most inexpensive and simple models, the exact value in degrees is not set on the panel - they are limited to symbolic images, meaning gradation from "cold" to "hot". If the boiler is more expensive, then often the electronic control system already allows you to set the temperature with an accuracy of 1-2 degrees. Devices with the ability to program the heating temperature depending on the time will cost even more.

If you have not used water for a long time, for example, you have left for several days, and the boiler has not been turned off, then it will automatically heat the water when the temperature drops. So that the boiler does not work independently and there is no unnecessary consumption of electricity, it is better to turn off the water heater before leaving.

If the water cools down completely during your absence, then when you turn on the boiler, it will heat up for a couple of hours. The volume of the water heater also plays an important role here.

Volume and good wiring is an important point to consider before installing the boiler. Often, when choosing the volume of a water heater, they start from the number of people living in the living space.

The volumes of boilers vary from 10 liters (the smallest), they are often installed in the kitchen to wash dishes - up to 120. Boiler with a capacity of 1.5 - 2 kW - these are the models most often bought by Ukrainians, given that many high-rise buildings do not have very reliable power supply system. A boiler with a capacity of 1.5 kW and a volume of 80 liters will heat cold water in 3 hours. A 2 kW boiler will heat 80 liters in 2 hours. A tank of 50 liters will be heated by a 2 kV boiler in 1 hour.

Returning to the price: the larger the volume of the tank, the more expensive the boiler. Hence the question, do you need a boiler with a tank capacity of 120 liters if you live together?

There are models in which two heating elements are installed. This is a kind of insurance, in situations where there are problems with the use of significant power of electricity while the boiler and, for example, a washing machine or heater are operating at the same time. The inclusion of another powerful consumer can lead to the shutdown of the circuit breaker. In order not to knock out the plugs, due to the high load, you can turn on the boiler to an economical mode when one heating element is working. The water will heat up slowly, but there will be no overload.

Installation

Theoretically, you can install the boiler correctly - connect it to the mains and connect it to the water pipe - you can do it yourself. But it is better to consult a specialist. At the same time, it often happens that the person who bought the boiler has the right to warranty service and free installation. The first thing to determine is the location for the boiler. Most often, it is installed on the wall of the bathroom or toilet. But here the weight of the device is of great importance - after all, even an empty boiler often weighs about 25 kg. Add to this 50, 80 or even 120 kg of water. It is important to know that not every internal wall will support the weight of the boiler. When installing a water heater, it is advisable to use special steel anchors.

To properly install the boiler, professionals advise installing a separate outlet. After all, usually the outlet is designed for a voltage of 220 V and a current of 10 A. If we multiply these values, we get 2,200 W or 2.2 kW: this is the output of a standard outlet. There are also sockets for 16 A, their output can reach 3,520 W or 3.5 kW. If a 10-amp socket - in this case, we can talk about the allowable power of about 2 kW. Hence the approximately equal power of the heating element in the boiler, whether it is 50 or 150 liters.

Installation costs about 600 UAH - plus 300-500 UAH for consumables.

• 15-20-liter boiler without water 10-13 kg, add the weight of water (15-20 kg) and the output is 25-30 kg load on the wall;
• a 50 l boiler weighs 17-20 kg empty and about 70 kg full;
• an 80 liter model weighing 20-22 kg may well give 100 kg of additional load on the wall when fully filled with water;
• larger models with a volume of 120-150 l provide an even greater load - up to 150-180 kg.

If you have opted for a 100-liter boiler or more, it is better to provide floor support for it. It can be a rack, supports, a locker with stops. Due to this support, most of the load will go to the stand, which will provide insurance to the fasteners.

Self installation

First of all, you need to read the instructions. The installation of a water heater is always described there. Then, you need to put a safety valve. This valve is installed on the cold water supply line (where cold water enters the boiler), cuts off the water supply when the boiler is filled and relieves excess pressure when the water boils, which saves the boiler from explosion.

The installation of the valve is mandatory; during the operation of the boiler, it may drip a little - this is the normal mode of operation. Carefully monitor the valve, clean its moving part from dirt and scale. This is the basis for the safety of the entire boiler system.

Be sure to pay attention to the electrical connection of the boiler. Perhaps in the old apartment you will even have to shift the wiring from the meter to the boiler outlet. The boiler wire itself in 99% of cases should be 3-core - taking into account grounding, which also needs to be checked in the outlet.

If you have old wiring and you are not sure about it, then it would be better to invite an electrician to make a separate line for the water heater or replace the wiring completely.

Problems in use

The boiler works on the principle of an electric kettle. That is, it tends to suffer from scale on the heating element. In Ukraine, hard water flows in taps, and this greatly reduces the life of the device. To combat this problem, softening filters are often installed.

Another problem with boilers is corrosion. To combat it, corrosion protection in the form of a magnesium anode rod is used. Such a rod takes all the impact on itself, gradually collapsing.

Each boiler is provided with an “anti-corrosion anode”. This anode serves as a “magnet” for rust and active chemical elements, thus it protects the boiler tank and must be replaced after 1-2 years and is, in fact, a consumable item. Together with the replacement of the anode, it is desirable to clean the heating element from scale, flush the boiler tank. But even so, in order for the water heater to last longer, it is necessary every six months to invite a master who can assess the condition of the anode rod and heating element and clean them.

Sometimes the master decides to replace the heater. This service is relatively inexpensive, within 300-350 UAH. When compared to buying a new boiler, it is much cheaper. Often, having bought a water heater, people do not think that they need preventive maintenance and maintenance. This saves both money and time. After all, buying a new boiler costs a pretty penny.