How to choose a geyser - criteria for a successful choice and an overview of popular manufacturers

No. 10. Neva Lux 6014

The rating is opened by the domestic gas water heater Neva Lux 6014, which is quite competitive with foreign counterparts. It belongs to devices of increased power (28 kW). A standard bath warms up in 20-25 minutes. Modulating burners are provided to ensure that the temperature remains constant as the temperature changes. pressure in the plumbing system.

Main advantages:

• increased productivity;
• The optimum ratio of price and quality;
• there is a display indicating the temperature of the water heating;
• water temperature adjustment;
• ignition is carried out by an electrical device;
• full adaptation to domestic operating conditions.

Noticed disadvantages:

• excess of water temperature (above the established one) at the initial stage of work (up to 20 C);
• increased noise.

This unit is designed for large houses. It fully meets modern requirements and enjoys well-deserved popularity due to its affordable price and high reliability.

What to choose - a boiler or a column

The first thing that worries the average user when choosing any product is the price. But an electric storage water heater and a geyser are completely different devices in terms of the principle of operation. This means that a comparison of their cost can be made only on one basis - the ability to provide hot water to a family of 3 people.

For example, let's take fairly reliable devices of the middle price category - a flow heater from the NEVA brand and a 50-liter Gorenje boiler. That's what came out of it:

Notes:

1. If we take for comparison a geyser from the Gorenje brand, then it will cost even cheaper than the Neva - about 135 USD. e.
2. The table gives the electric power of the boiler, but it is almost equal to the thermal one.

Comparison in terms of installation and connection complexity

This criterion plays an important role, because it is associated with certain costs - financial and time. When comparing, we will not take into account the supply of cold and hot water, it is present in both cases. Features of the installation of different water heaters are described in the comparative table:

Conclusion. Although some difficulties arise during the installation of a heavy and dimensional boiler, in general it is much easier and cheaper to install and connect it than a geyser. The accumulative heater, if desired, is placed with your own hands.

Convenience during operation

After analyzing all the pros and cons of operating household water heaters, we will collect them in one list:

1. The column heats the water immediately after opening the tap, which is very comfortable. The boiler takes time to prepare water - from 1 to 3 hours, depending on its temperature and the volume of the tank.
2. The accumulator gives a large flow rate and provides several consumers at once. When drawing water at 2-3 points, the column does not have time to heat the water and its temperature drops.
3. The flowing gas heater heats water indefinitely. The duration of the supply from the boiler depends on its capacity.

Over the years of operation, scale accumulates in the tank and on the surface of the heating element, the magnesium anode is destroyed

Conclusion. It is still more convenient to use flow devices, provided that they have enough thermal power for all needs. Another thing is maintenance and repair, in this regard, the maintenance of the boiler will be cheaper.

Work on servicing a gas-using water heater should be entrusted to a specialist

Zanussi GWH 10 Fonte

Thermal power - 20 kW Heating volume - 10 l / min Input pressure - from 0.15 atm to 8 atm Control type - mechanical Type of ignition - electric with an open chamber
Among the main advantages of the model, the owners of this column noted the quality of work, a high level of security and ease of managing settings. A clear and wide display shows start-up, heating, water temperature and ignition battery reserve. A distinctive competitive advantage of the model is a multi-level protection and control system, which includes control of traction, overheating, lack of water and gas supply.

Ignition type

In order for the column to start its work, it is necessary to ignite the gas.Old models were lit by hand, bringing a burning match to the igniter. Today, such units are no longer on sale, they are a thing of the past. They were replaced by others that work in automatic or semi-automatic mode.

Piezo ignition

In geysers with a piezoelectric element, ignition occurs in a semi-automatic mode. There are two burners - main and pilot. The pilot burner is a small wick that burns constantly, regardless of whether there is flow. hot water or not. The main burner turns on only when the valve is opened. The rest of the time it is off.

The procedure for starting a gas column with piezo ignition is simple: press the button displayed on the front panel, a spark appears on the candles, which ignites the pilot burner. When a hot water tap is opened, gas is supplied to the main burner, ignition takes place from the pilot burner. While water is flowing, both burners are lit. The valve was closed, the gas supply to the main one stopped, only the pilot one is on fire again.

Piezo ignition device for gas water heaters - a simple and inexpensive device

What are the advantages of geysers with piezoelectric elements? These are the cheapest models, they usually have a mechanical control - a regulator that allows you to change the height of the flame, thereby regulating the temperature of hot water. These models are non-volatile, which can be important for giving.

There are more disadvantages and they are more serious. The wick burns (should burn) constantly while you use the column, and this is gas consumption. Let it be small, but constant, as a result, quite a decent amount accumulates in a month. So this is far from the most economical way to heat water. The second minus is also associated with the burning of the wick. If it goes out, you will not be able to light the column.The wick goes out because it does not have enough oxygen to burn, or because in chimney periodically backdraft occursthat blows out the flame. Since there is a flame controller, this is not a problem - the gas is automatically shut off, but the need to re-ignite the pilot burner is unpleasant.

Electric ignition

Automatic geysers have electric ignition. This is an electric spark generator that is activated when the tap is opened. The rest of the time the gas does not burn, which significantly saves fuel. There is an electric ignition, powered by batteries, there is - from a 220 V network. Which gas water heater is better for this parameter, you have to choose according to the circumstances.

If you often turn off the light, it makes sense to choose a model that runs on batteries. As you understand, in this case, you have to make sure that they "do not sit down." If there are no problems with electricity or there is a backup power source, it is better to choose a geyser powered by 220 V. Plug the cord into the outlet once and forget about it. Electricity consumption is negligible, so they have almost no effect on the bills.

The electric burner is controlled by a microprocessor

Geysers automatic machines have electronic control. A board with a microprocessor is installed in the case, the desired temperature is set from a small control panel (button or touch). A small LCD screen is often placed here, which displays the current state of the equipment, the temperature of the water, if it is being heated. This type of geyser is the best if you value ease of handling.

Disadvantages - higher price and power requirements.Electronics needs a stable voltage of 220 V with small deviations of the order of 2 * 3 V. We do not maintain such parameters, so in order for automatic geyser worked for a long time, a stabilizer is required, and it is better not a relay one, but an electronic one

It not only stabilizes the voltage, but also evens out the shape of the pulses, which is also very important for imported water heaters.

The best geysers at an average price (7000-12000 rubles)

If the hot water is turned off, the geyser will help out in this situation. To choose the right model, it is worth considering popular devices. The rating includes columns by average cost, which are the most popular among consumers.

Zanussi GWH 12 Fonte

Instantaneous water heater with steel body. Heats water up to 50 degrees. It has a simple mechanical control and electronic ignition.

The burner is made of stainless steel and the heat exchanger is made of copper.

This ensures quick heating of water and long-term operation of the device.

Characteristics:

• productivity — 12 l/min.;
• inlet pressure - 0.15-8 atm.;
• power - 24 kW;
• chimney diameter - 11 cm;
• control - mechanical;
• dimensions - 35x61x19 cm;
• weight - 9 kg.

Advantages:

• modern design;
• battery ignition;
• fast heating;
• high performance;
• quality assembly.

Flaws:

• expensive components;
• noisy work.

Electrolux GWH 10 Nano Plus 2.0

A product from a well-known brand, equipped with electronic gas ignition and easy to use. Hot water is heated immediately upon opening the hot water tap.

The unit has a high performance.

Ergonomic knobs on the control panel are provided to regulate the heating temperature.

Characteristics:

• productivity — 10 l/min.;
• inlet pressure - 0.15-7.89 atm.;
• power - 20 kW;
• chimney diameter - 11 cm;
• control - electronic;
• dimensions - 33x55x19 cm;
• weight - 8.08 kg.

Advantages:

• Beautiful design;
• gas control;
• high power;
• safe use;
• temperature maintenance.

Flaws:

• low quality components;
• temperature fluctuations at low pressure.

Bosch WR 10-2P23

Reliable column with a chimney, equipped with a copper heat exchanger. The material is durable high temperatures and ensures maximum results when using gas.

The body is made of corrosion resistant stainless steel.

High power provides heating up to 10 liters of water per minute.

Characteristics:

• productivity — 10 l/min.;
• inlet pressure - 0.1-12 atm.;
• power - 17.4 kW;
• chimney diameter - 11 cm;
• control - mechanical;
• dimensions - 31x58x22 cm;
• weight - 11 kg.

Advantages:

• modern design;
• simple settings;
• convenient use;
• quiet work;
• temperature maintenance;
• work at low water pressure.

Flaws:

• one hose included;
• you need to buy a corner for hot water.

Electrolux GWH 12 Nano Plus 2.0

Geyser from a reliable Electrolux brand with a digital display on which you can set the desired water temperature.

The unit is equipped with a safety valve and an overheating protection system.

Due to the simple mechanical control, it is easy to understand the use of the device.

Characteristics:

• productivity — 12 l/min.;
• inlet pressure - 0.15-8 atm.;
• power - 24 kW;
• chimney diameter - 11 cm;
• control - mechanical;
• dimensions - 35x61x18.3 cm;
• weight - 8.22 kg.

Advantages:

• automatic ignition;
• safe use;
• copper heat exchanger;
• simple control;
• flame control.

Flaws:

• frequent battery replacement;
• poor performance with low water pressure.

Zanussi GWH 12 Fonte Turbo

Practical model made of high quality stainless steel. Copper heat exchanger provides maximum gas performance.

Due to the simple and intuitive control system, you can easily understand the use of the device.

Characteristics:

• productivity — 10 l/min.;
• power - 20 kW;
• chimney diameter - 6 cm;
• control - mechanical;
• dimensions - 33x55x19 cm;
• weight - 10.4 kg.

Advantages:

• stylish design;
• display;
• simple settings;
• built-in ignition;
• quality heat exchanger.

Flaws:

• noisy work;
• small guarantee.

Bosch W 10 KV

The device combines everything you need to ensure continuous hot water supply. Suitable for residential rooms with good ventilation.

The body is made of enameled steel, and the heat exchanger is made of copper.

This ensures high-quality work and durability of the device.

Characteristics:

• productivity — 10 l/min.;
• inlet pressure - 0.15-12 atm.;
• power - 17.4 kW;
• chimney diameter - 11.25 cm;
• control - mechanical;
• dimensions - 40x85x37 cm;
• weight - 8.22 kg.

Advantages:

• automatic ignition;
• high performance;
• simple control;
• hot water at multiple points.

Flaws:

• noisy work;
• bad gearbox.

Zanussi GWH 6 Fonte

4 500 ₽

The Zanussi GWH 6 Fonte impresses with quiet operation and a high level of safety. Not afraid of interruptions and unforeseen power surges.At the same time, the German brand has taken care of the presence of "green technologies", thanks to which the model does not harm the environment. The power is 18.5 kW, which is enough to heat 6 liters of water in 60 seconds. The exit of gases, as you understand, is a chimney, the combustion chamber is open. Ignition is carried out by using batteries - electronic. The equipment works on the basis of G20 gas. The burner is made of stainless steel. The heat exchanger is made of copper. There is an LED display, power regulator.

Pros:

• level of protection;
• reliable manufacturer;
• copper heat exchanger;
• good burner.

Cons: performance

The principle of operation and the device of the gas column

A geyser is a compact instantaneous water heater that is mounted on a wall in a vertical position. Designed for heating cold water in order to create a local hot water supply - designed for 1 or more points of analysis.

The composition includes:

1. Rectangular-parallelepiped case;

2. Gas burner;

3. Combustion chamber;

4. Heat exchanger;

5. Exhaust manifold;

6. Release under the chimney;

7. Fitting for gas supply;

8. Inlet / outlet pipes for cold / hot water;

9. Security system and control buttons.

Depending on the type, the device has individual design features:

1. The combustion chamber is open and closed;

2. Ignition - piezometric, electric and hydroturbine;

3. Gas burner - constant and variable power (modulation).

Modern speakers are much more advanced than older models. To start them, just open the tap of the mixer.

As a result:

1. Water enters the unit and at the same time opens the fuel supply valve;

2. Ignition turns on automatically;

3. A burner is ignited, the fire of which heats the liquid through a heat exchanger;

4. The resulting hot water is sent to the mixers;

5. Combustion products are discharged through a vertical or coaxial chimney.

When closing gas supply tap and the liquid ceases, and the flame goes out. In the event of a malfunction of the water heater or emergency situations, the security system is activated.

No. 1. Bosch WR 1-2P

The leader of the rating by the majority of specialists and buyers is the German geyser brand Bosch WR 1-2P. With a power of only 17.5 kW, it develops a capacity of 10 l / min. The water heats up to 60 degrees. The device has mechanical control, piezo ignition, display and reliable protection against various troubles. Able to work at pressure in the pipeline from 0.1 to 13 atm. Dimensions - 31x58x22 cm.

Advantages:

• high reliability and durability, high-quality assembly;
• noiselessness of work;
• fast heating of water;
• guaranteed complete security;
• attractive design.

This installation has practically no disadvantages. The increased price is covered by German quality, economical operation, high durability.

Types of geysers

All gas columns are divided into two large groups according to the method of air supply - necessary to maintain the combustion process of the fuel. To choose the right one geyser to create DHW apartment or a private house, you should familiarize yourself with the fundamental differences and design features of the models of each group.

atmospheric

Water heaters with an open combustion chamber (atmospheric) take the air necessary for combustion directly from the room.

Atmospheric geyser

The removal of combustion products occurs due to the natural draft created between the combustion chamber and the chimney. Advantages:

1. Simplicity of design;
2. Weight of non-volatile models;
3. Affordable cost.

The disadvantages include high requirements for the arrangement of the premises, the operation of the ventilation and chimney systems.

Turbocharged

Columns with a closed combustion chamber (turbocharged) use atmospheric air, which is supplied through the inner pipe of the coaxial chimney directly into the sealed combustion chamber by an air turbine.

Turbocharged geyser

The removal of combustion products is carried out forcibly through the outer space of the coaxial chimney.

Advantages:

1. Low space requirements;
2. Operational safety;
3. Simplicity of arrangement of the smoke exhaust system.

Flaws:

1. Energy dependence;
2. High price;
3. Higher noise level due to the operation of the blower fan.

Regardless of the design of the combustion chamber and the smoke exhaust system, geysers can be flow or storage type.

Flowing

Distinctive feature flow models is the lack of cumulative water tank, as a result of which they have small dimensions. What type of geyser is better to choose to create DHW apartments? The answer is obvious: flow models are ideal for installation in city apartments with an insert into the central water supply system.

flow model

Advantages:

1. Instant hot water in the required volumes;
2. Small dimensions and weight;
3. Easy to operate.

Disadvantages: low performance.

When choosing the performance of a flow model, one must proceed from the number of draw points.

Cumulative

Accumulative installations are equipped with a storage tank for water, with a volume of 50-500 liters. The volume of the tank determines the dimensions of the device. The body of the device is reliably insulated to reduce the heat loss of hot water.

Gas storage water heater device

Advantages:

1. There is always a supply of hot water;
2. Thermal insulation of the tank allows you to keep warm for a long period.

Flaws:

1. Large weight and dimensions;
2. Long heating period.

Which gas water heater should be chosen for a cottage or a private house? Based on the design features, it is advisable to use storage-type gas water heaters to create DHW private house with a large number of water points.

3 Neva 4511

The popular domestic geyser Neva 4511, unlike its competitors, can run on liquefied gas. A powerful hydro generator provides a capacity of 11 l / min, and a high-quality heating element with a power of 21 kW quickly raises the water temperature to the required one. The wall mounting method is convenient, as it saves space in the room. In numerous reviews about geyser Neva buyers highlight convenient operation, small size and low cost as strengths. The display shows current information about the temperature of the water in the machine. The body is painted with high-quality lead-free enamel, making the heater environmentally friendly. The operating pressure range is from 0.3 to 6 atm - ideal for domestic networks.The weaknesses include the presence of noise during operation and the low reliability of some nodes.

Geyser or boiler

A geyser and a boiler are designed to solve the problem of hot water supply in a house or in a country cottage where the central supply is broken. Each device has advantages and disadvantages. When choosing a specific unit for your own needs, you should consider the factors listed in the table.

Parameter	Geyser	Boiler
The size	Has a compact size	Capacious tank, requires a large area in the room
Mounting	Mounted only after permission gas service specialists	Self-installed
Food	Natural, liquefied gas	Electrical network
Hot water	Flow type devices supply water in any quantity. Heats up in minutes	The volume is limited by the capacity of the tank. Takes time to warm up
Peculiarities	The performance depends on the pressure, the presence of blue fuel	The electricity went out, the water did not have time to heat up

A geyser is financially more profitable than a boiler. Will last for a long time. But due to the quality of water, gas requires periodic replacement of filters, maintenance.

heat exchanger

Water is heated while it flows through the heat exchanger. It is a metal pipe installed above the burner. The shape of the heat exchanger in the geyser is special - a pipe with fins is serpentine in the lower part, then a sheet of metal is installed around it, over which the pipe is wound in a spiral. Flowing along this long path, the water is heated by the heated metal.

This is what it looks like heat exchanger for gas columns

They make heat exchangers from galvanized steel (the most budget option), stainless steel and copper. The best in terms of efficient heat transfer are copper. They are the most economical, but also expensive. The most durable are stainless, but they have a much worse situation with heat transfer. Which gas column is better in this case is up to you. Choose the quality that is more important to you.

If you decide to buy a gas water heater with a copper heat exchanger, do not try to find a cheap model. In order to reduce the price, manufacturers use low-quality copper, and even the tubes are made with thin walls. Such a heat exchanger will serve the warranty period, and then problems will begin - a leak will appear.

If you remove the casing, you will see fistulas in the tubes through which water drips. They are located for the most part on the outside of the pipe, just in the place where condensate forms. With a normal pipe thickness, this is not scary, but thin walls quickly corrode. Such a leaky heat exchanger does not have to be changed (it costs about 1/3 of the total price), it can be soldered. You will need refractory solder with a melting point of about 200 ° C, a powerful soldering iron and soldering flux. The technology of work is usual - clean the damaged area to bare metal, degrease, tin, solder.

3 Bosch WRD 13-2G

The Bosch WRD 13-2G water heater ranks third in the ranking of the best geysers in terms of value for money. This is one of the most powerful models (22.6 kW), while its cost is somewhat lower than that of its neighbors in the TOP. The productivity of the device is 13 l / min - this is the best indicator in the ranking. Due to the open combustion chamber, column operation is possible only if there is an additional air duct.A distinctive feature of this model is operation at a pressure of 0.35 atm, which allows you to use hot water even at low pressure.

According to buyers, the advantages of this geyser from Bosch are ease of installation and operation, high-quality electric ignition and neat assembly. In addition, the water heater can also work with liquefied gas, that is, from a cylinder. This feature will allow you to use it in country houses, where communication problems are not uncommon. A special overheating protection will work automatically when the temperature in the device becomes higher than the permissible one. The main disadvantages of this model are a noisy hydrogenerator, sensitivity to gas pressure and an inconvenient location of inlets and outlets.

Do not engage in independent connection of the geyser without relevant experience. Moreover, it is forbidden by law (any check of gorgaz = a fine). Connection of gas appliances should be carried out only by a specialist with a mandatory license (SRO) from his organization.

No. 2. Power of geysers

The power of the geyser is indicated in kW. It is directly related to the performance of the equipment and indicates how many liters of water per minute the column can heat. It is worth noting that the best geyser is not necessarily the most powerful device. It all depends on how many people live in the apartment, and how many of them can use hot water at the same time (or how many hot water mixers are installed). It is believed that one mixer is capable of passing 6-7 l / min. It is enough to multiply this parameter by the number of taps, add a small margin and get the result. Power is indicated either on the column itself, or in the technical documentation for it.For example, a 23-24 kW column allows you to heat about 14 liters of water per minute to a temperature of about 25 degrees.

According to the power, the speakers are divided into several types:

• 17-20 kW - the minimum power sufficient to supply one point of water intake, i.e. it will be possible to either take a comfortable shower or wash the dishes - both will be difficult to do at the same time. Their productivity is 9-10 l / min, no more. Option for a small family or one person;
• 20-26 kW - medium power columns, heat 15-20 l / min and are suitable for heating water to a comfortable temperature for 2-3 water consumption points. The most popular option;
• more than 26 kW - powerful units for large families and private houses.

In pursuit of power, do not lose your common sense and do not forget to take into account the water pressure indicator. It makes no sense to take a column designed to heat 25 liters of water per minute if the water supply network is not capable of providing such pressure.

Conclusions and useful video on the topic

The video shows frequent breakdowns of gas water heaters:

Why is self-reliance dangerous? geyser installation:

After the choice of the water heater is made, you need to order the installation at the manufacturer's service center. Only in this case, the guarantee for the geyser is valid. This practice applies to all major suppliers.

Savings on installation leads to waste on repairs, which you will have to pay for yourself. The column must be registered with the gas service, since once a year it must be inspected by specialists.

Tell us about how you chose a geyser, what criterion became decisive in choosing equipment.Perhaps you have some useful advice in store for site visitors who are planning to buy a gas wall-mounted boiler? Please write your comments in the box below.