Geysers articles. Which geyser is better - the main selection criteria. The best speaker for an apartment or cottage: expert reviews

The gas equipment market today offers a large number of models of water heating appliances from imported and domestic manufacturers. Below we will discuss how to choose a geyser. After all, in order to choose a suitable device, you need to understand the features of different types of speakers and their characteristics.

Types of water heating columns

A gas water heater for an apartment is often chosen based on the type of ignition. Modern devices are usually divided into two large classes:

Semi-automatic(piezo ignition), ignition of the pilot burner in which occurs from sparking when pressing a button acting on the built-in piezoelectric element;
Automatic, in which an electronic unit is responsible for supplying a spark to the ignition or main burner.

A spark in automatic geysers of different models can be generated in two ways - by a spark gap when powered by a pair of “D” size batteries (the largest battery) and by a small electric generator driven by a hydraulic turbine (hydraulic ignition).

Each column has disadvantages and advantages. Let's consider what you need to consider so as not to spend a long time choosing which geyser to buy in the store:

The ignition burner of semi-automatic water heaters must burn constantly, otherwise the main burner simply will not light up when the water tap is opened, which entails a significant overconsumption of gas - in a day a small wick “eats” up to 0.8 cubic meters. m of gas;
batteries of automatic speakers have to be changed periodically (about once a year), which is not always convenient;
water heaters with a hydrogenerator are expensive, and the hydrogenerator is sensitive to water quality - if this device becomes clogged, the column will simply stop functioning.

And before you buy an automatic gas water heater with a hydraulic turbine, make sure that the pressure in your water supply is normal, i.e. above 0.4 atm, otherwise it simply will not turn on at low pressure. It would also be useful for this type of speaker in an apartment to have an additional filtration system for tap water, i.e. . The hydrogenerator operates under high water pressure and good water quality.

Nevertheless, the comfort of using automatic geysers determines the increased demand for them, even despite the high price. The “automatic machine” starts working immediately after the consumer opens the hot water - there is no need to press or set anything on fire.

Semi-automatic speakers have also still not lost their popularity, primarily due to their low price, simplicity, lack of expensive electronic components and high level of reliability. Therefore, consumers often choose these water heaters when answering the question of which gas water heater is best to buy.

Gas water heaters differ in the way they regulate gas flow. According to this parameter they are divided into the following types:

Columns with automatic adjustment, in which the set water temperature is maintained constant by changing the amount of gas supplied to the burner in a fully automatic mode.
With smooth or step manual adjustment. The water temperature changes when its flow rate or gas pressure in the line changes, but the user has the ability to change the gas flow to the burner to maintain the temperature regime.

Manual temperature adjustment is made by turning the gas tap handle. If you twist it too much, the column may go out. Also, it is better not to operate such speakers in the mode of mixing heated and cold tap water, otherwise they will quickly fail.

Parameters for choosing a water heating gas water heater

To understand how to choose a gas water heater for an apartment, study not only the type of water heater, but also the parameters, the main one of which is power, usually expressed in kilowatts (kW). You can focus on the following statistics:

to heat water only for a shower or sink, a low power column of up to 19 kW will be sufficient;
if several water intake points must operate simultaneously, then you need to buy a water dispenser with a power of 22 kW or more.

Manufacturers usually indicate how much water the column can heat by 25 degrees in a minute. Here it should be taken into account that if the column heats a maximum of about 11 liters of water by the specified amount, then the productivity is only sufficient for one water collection point. A dispenser with a capacity of 14 liters can already work at two points, 16 liters - at three points.

You should not take a powerful speaker if the water pressure in the apartment is low - the device will still not produce the required power, and you will overpay. If the maximum flow rate in your house is, say, 10 liters, and you take a dispenser with a flow rate of 15-16 liters, then, depending on the manufacturer, the automatic or semi-automatic device will either heat the water ineffectively or will not turn on at all.

It is also important to correctly determine the overall dimensions of the instantaneous water heater, for which purpose measurements are taken of the installation site. The diameter of the chimney to which the water heater is planned to be connected is also measured. If the need arises, you can purchase a special adapter to connect the gas water heater to the chimney.

Speaker for a private home

To know how to choose a geyser for your home, you need to understand what requirements these devices impose on the presence and properties of the chimney in the building, as well as on the quality of ventilation.

Gas water heaters work not only in apartments, but also in private houses. True, before installing a water heater in a private home, you need to decide how and where the flue gases will be discharged. If the house already has an exhaust duct with sufficient draft, then any type of instantaneous gas water heater will be suitable for installation.

In the absence of an exhaust duct, for example, in a five-story apartment converted to use water heating devices or in a private house, it is possible to use only parapet or chimneyless water heaters. In this case, combustion products are removed by a fan, for which a hole is installed in the wall. The room itself should also be well ventilated.

Also for private homes, the minimum water pressure at which the water heater can turn on will be of great importance. As previously noted, the highest minimum pressure required for the operation of the column are automatic models with a hydrogenerator. For them, this value corresponds to 0.35-0.45 atm. It is better to choose water heaters that operate at 0.1 atm.

The best models of geysers

Below are the characteristics and descriptions of the best devices offered on the market today. This way you can roughly figure out which gas water heater to choose.

One of the best inexpensive economy class geysers with an open combustion chamber, automatic electric ignition from batteries, but with a minimal set of functions. Produced since 2009 in St. Petersburg by the Gazapparat plant. There is no outlet temperature control, and the maximum flow rate is low - only 11 liters. Therefore, it is impossible to open the tap, for example, in the kitchen while the shower is running without the risk of burning the bather. But you can buy a geyser for a low price, and it works with low water pressure of only 0.1 Bar.

This is a reliable and safe geyser, one of the best on the market. It is equipped with a piezo ignition system with a constantly burning wick and automatic maintenance of the temperature set at the outlet, and has the entire necessary set of safety sensors. Works even at low pressure in the water supply network (only 0.1 Bar). In addition, this device is actually the only one on the market that protects against back draft, making it ideal for apartments with poor ventilation and poor smoke removal. Disadvantages - expensive spare parts and low flow rate - 10 l/min.

In terms of price/quality ratio, the water heater is one of the best. It is problematic to buy a geyser with similar characteristics at the same price, but the device is characterized by high reliability and ease of control with one handle to set the temperature. The column has high productivity (14 l/min, 28 kW), automatic electric ignition and hydraulic adjustment of the flame on the burner depending on the value of the inlet water pressure. That is, the temperature of the column does not change due to changes in water pressure in the network.

A gas water heater, or rather its choice, is not an easy task. If you are reading this article, then you are probably faced with a problem of this kind. This article is intended to help you. We'll talk about what you should pay attention to first and outline a number of questions that we will ask in the store. So that in the end the purchased speaker fully satisfies all expectations for ease of use and the required safety standards.

Seven questions to help you make your choice:

1. Why do you need a geyser and what kind of device is it?
2. What power and performance should I choose for my family?
3. Will the gas water heater work if I have low pressure at times?
4. What is power modulation and should I pay extra for it?
5. Which ignition option is better to choose?
6. What is a heat exchanger and how to choose the best and most durable one?
7. How many levels of protection and safety does the dispenser have?

Why do you need a gas water heater and what is it anyway?

The gas water heater has long been a part of modern life. This device can be found both in apartments and private homes. In the modern world of central heating and hot water supply, geysers have a future and an undeniable advantage.

Considering that gas currently remains one of the cheapest sources of energy, the gas water heater is the most economical device for preparing hot water. A liter of hot water heated by a gas water heater is several times cheaper than heated by an electric water heater.

The water supplied from the central water supply will also be more expensive. Conveniences include the fact that the column is a flow-through heater, which ensures efficient heating of water, and besides, the column has a compact size, unlike a boiler, for example.

Which power and performance should I choose for my family?

The most important indicator that you should pay attention to is the performance of the water heater. Power is determined in kW, and the water flow that the column can heat is in liters/min. These parameters are stated on the factory sticker, both on the packaging and on the device.

Such a plate can be easily found on the back panel of the water heater, as well as in the technical data sheet of the product. Productivity is the amount of water heating over a period of time with a temperature difference at the inlet and outlet at a delta of 25 C. In an example, it looks like this: the productivity of the column is 10 liters per minute. Let’s say water enters the column at +12 C and leaves the consumer at a comfortable temperature of +37 C..

We find that the device is capable of providing a flow of 10 liters per minute with a temperature difference of 25 C. It should be understood that this value is very arbitrary and depends on many factors, so by increasing the temperature we need, we will correspondingly reduce the water flow. The geyser flow you need is determined by the number of mixers in the house.

For an average, the required flow for the mixer is considered to be up to 7 liters per minute. That is, a typical gas water heater performance of 10 liters per minute is quite enough if you have one mixer in the kitchen. For comfortable operation of the device in an apartment with two water collection points, it is recommended to purchase a gas water heater with a capacity of 13 liters per minute

Table for determining the standard size of a gas water heater:

Will the gas water heater work if I have low pressure at times?

In addition to performance, you should pay attention to the device’s ability to turn on and operate stably at low pressure. The parameter is responsible for this "minimum cut-in pressure". This parameter is also written on the product nameplate. Many older houses are characterized by low pressure water supply.

A minimum switching pressure value higher than 0.15 bar will most likely lead to problems when switching on the water heater. In addition, the components at the joints must withstand water shocks. Of course, this is difficult to determine visually, but a manufacturer that cares about its reputation uses materials that are quite durable.

Water hammer is accompanied by a sharp increase in pressure. The consequences of such an impact are leaks in the connections. The pressure that the connection and materials must withstand must not be lower than 11-12 bar.

What is power modulation and should I pay extra for it?

We will try to explain the difficult concept of power modulation with an example. Imagine a situation where a person is taking a shower and suddenly cold water comes out of the shower head. The man swears, and a moment later boiling water is pouring on him. Sound familiar?

The reason for this was the circumstance in which one of the household members opened the tap in the kitchen to wash an apple. So, equipping the geyser with a power modulation function helps to avoid temperature fluctuations. With this equipment, the water heater adjusts the flame power of the burners, avoiding the influence of pressure changes in the system.

As you might guess, the maximum flame of a burner is determined by its power. The lower range determines the sensitivity of the components of the water fittings, or rather its membrane. The modulation value, the lower, the better. The lower this value, the less the device reacts to changes in pressure in the system. A good modulation range can be considered from 40 to 100% of its power characteristics.

Which ignition option is better to choose?

When choosing an instantaneous water heater, you need to decide on its ignition method. More recently, a gas water heater was lit in the following way. With the help of matches they made a fire, with a valve they opened the gas supply to the Wick, set it on fire and it burned constantly. Today, the modern market offers two main types of ignition.

The first is to ignite the igniter directly and the second way to ignite the column from the electrode. The first method assumes that the igniter is ignited by an electric pulse. An electrical impulse can be supplied from a battery or a piezoelectric element, or sometimes created by a generator. The combustion of the flame on the igniter is controlled by an ionization sensor. After this, the gas is supplied to the burner, and it ignites smoothly.

If the gas water heater is equipped with direct ignition, then the gas is immediately supplied to the burner and ignited by an electric pulse not through the igniter, but immediately in the combustion chamber. If there is an imbalance in the time of gas and electric pulse arrival, a slight bang may occur. This occurs because the gas accumulates in a small amount in the gas chamber and when ignited, a micro-explosion occurs.

When using such a speaker, household members will most likely encounter discomfort. While in the store, you should check that the ionization sensor and ignition electrodes are fixed exactly in their positions during production.

What is a heat exchanger and how to choose the best and most durable one?

Modern manufacturers have not equipped geysers with such heat exchangers for a long time due to poor efficiency. We can find copper heat exchangers everywhere and in almost any geyser presented on the water heater market in the Russian Federation.

However, for a long service life, as well as long-term operation without failures of the device, it is necessary to use high-tech oxygen-free copper. The quality of copper depends on the impurities of other metals, as well as various additives. High-quality copper can be identified visually by its specific bright color and shine.

Manufacturers who cannot afford high-tech copper paint their heat exchangers with paint in order to reduce the negative effects of condensation. Brands from well-known manufacturers do not use manual labor in soldering areas. Modern production uses robotic technology for these purposes. This is how Bosch uses high-precision ultrasonic soldering.

This approach eliminates the presence of various black dots or lines when using manual soldering. Black spots indicate overheated areas during heat exchanger production. Over time, there is a high probability of burnout in these places, which will lead to a leakage of the heat exchanger.

How many levels of protection and safety does the dispenser have?

Since the consumer is dealing with gas and the device in which the combustion process takes place, it is logical to ask the question: How many degrees of protection and what level of safety does the gas water heater have? Currently, modern geysers must be equipped with at least three important protection sensors.

Firstly, this is a flame ionization control sensor. The ionization electrode is placed next to the Westerners or directly next to the main burner. The operation of the sensor is quite simple, but at the same time very reliable. When the flame burns, an ionization current occurs at the electrode. It is this current that holds the gas access valve. As soon as the flame goes out, the flow of gas is immediately blocked.

The second danger to the operation of the device is the lack of draft in the chimney. Protection against this nuisance is entrusted to the temperature sensor, which is located at the top of the smoke exhaust manifold of the water heater. In the absence of draft, the combustion products heat the control temperature sensor, which in turn sends a signal to the valve, which shuts off the gas.

The third degree of protection is provided by a temperature sensor on the heat exchanger. The gas is shut off if for some reason the temperature of the heat exchangers exceeds 100 degrees Celsius

In addition to the described degrees of protection, there is another so-called “backdraft” blocking. The phenomenon occurs if new plastic windows are installed in non-modern houses. This innovation sharply limits the supply of air necessary for combustion of the flame.

In winter, with strong winds, the danger of “tipping over” of the draft in the chimney increases. Since the consequences of this feeling can result in big problems for household members, there are methods to combat such things. For example, Bosch has introduced a reverse draft control sensor, which allows you to turn off the column when such a situation occurs.

Today we asked and answered seven basic questions that will help us with the right choice of gas water heater. .

A geyser will not only allow you to use hot water from several sources in one house and not depend on problems or failures in the central system.

Flow-through gas ones most often have small dimensions; they are an ideal choice for a small apartment. The device is connected directly to the cold water supply system and runs on both natural and liquefied gas.

The principle of operation of the column is very simple: water enters the heat exchanger, where it is heated by the combustion gas, and is immediately supplied to the mixer.

A storage geyser can hold a large amount of liquid, so it requires a lot of space. The heater heats a certain amount of water in the container and maintains the temperature for a long time.

If the water cools down, the column automatically heats it up to the desired temperature. The water container is well insulated, so the water stays hot longer.

Depending on your needs, you can choose a gas water heater with a liquid tank of 50 liters or more.

Power. Depending on how much liquid is heated, a geyser can have a power from 6 to 30 kW.
Ignition type– can be automatic or semi-automatic. The automatic type of ignition is triggered when the water supply is turned on or when the water in the container has cooled down.

The semi-automatic type of speakers works only if you press the piezo ignition button. Such a device increases gas consumption, since the pilot flame must always be burning.

Burner type– can be with constant and modulated power. Devices with constant power are less convenient in places where the water pressure and, accordingly, the heating temperature often change.

A burner with modulating power automatically adjusts to the water pressure and maintains the initially set temperature.

Type of combustion products removal. A chimney column is installed if the corrugated hose can be routed into an existing chimney.

Turbocharged devices are less popular because there is a risk of the outlet paths freezing at low temperatures. In this case, it is necessary to drain the accumulated water frequently to prevent the heat exchanger from exploding.

Safety– a geyser is a dangerous device, so you need to pay attention to the presence of protective sensors and relays.

Dimensions– if this point does not matter, you can select a column, taking into account only the main characteristics and requirements. If the room does not allow you to install a large storage column, you can choose the most compact flow-through one.
Form– if you will hide the device in a kitchen unit, it is better to choose a square shape of the required size.

The best gas water heater with a closed combustion chamber

Zanussi GWH 10 Fonte
Zanussi GWH 10 Fonte can be installed in a private or multi-storey building. The device was created using modern technologies and materials.

Characteristics:

The design is made in a classic style.
There are models with additional patterned glass on the front panel; this solution allows you to gently fit the device into any design.
The Zanussi GWH 10 Fonte geyser operates silently, consumes gas and water economically, and is equipped with a multi-level security system.

Pros:

the Zanussi water heater is equipped with electronic ignition, which uses two standard batteries;
the presence of an LED display that reflects the temperature of the liquid upon exit;
the device operates smoothly at low pressure and supplies water under even pressure;
the burner and heat exchanger are made of stainless steel, which will significantly extend the service life;
closed combustion chamber;
low cost.

Minuses:

The batteries in your electronic lighter need to be changed frequently.

The best Russian-made geyser

Ladogaz VPG 10 E is created using innovative materials and technologies that save gas and water costs.

Characteristics:

The water heater has classic parameters and is made using modern materials.
The column is of the flow-through type, so gas and water consumption is significantly saved.
The high safety of the water heater is ensured by the fact that the burner only fires when water is used.

Pros:

The gas water heater operates stably even at low pressure.
It has a special inner layer that protects against the formation of precipitation and scale.
The heat exchanger is made of high-quality copper, which affects the heating rate and water quality.
The presence of several levels of security system: chimney draft sensor, overheating sensor and flame sensor.
Automatic ignition.

Minuses:

No display.
Temperature changes are possible.

The best geyser with automatic water temperature control

Neva 4510-M
Geyser of a domestic manufacturer Neva 4510-M has many advantages, the main one of which is its affordable price.

Characteristics:

The device is made in a classic style and has no special frills.
The speaker has compact parameters, so it can be installed in a small apartment or in a private house.
The column operates quietly and uniformly supplies liquid at the desired temperature even with sudden pressure changes.

Pros:

The water heating column starts at a liquid pressure of 0.15 bar.
Availability of two-stage flame modulation.
The presence of an ionization sensor, due to which the gas supply stops when the burner goes out.
Compact dimensions allow the speaker to be installed in a small bathroom or kitchen.
Quite low cost.

Minuses:

The water heater is not equipped with smooth flame modulation, which will not allow the use of this device at two water supply points.
The column has a power of 17.9 kW, which allows you to heat only 9 liters per minute.

The best geyser for an apartment

Mora Top Vega 10
Mora Top Vega 10 is a fairly popular water heating device on the Russian market.

Characteristics:

The device heats more than 10 liters per minute.
The geyser weighs about 2.5 kilograms.
The device is designed for one water intake, so it can be used separately in the kitchen or bathroom.

Pros:

Use of high quality spare parts and materials in production.
An effective and multi-level security system, or more precisely, protection against starting without water supply and against backdraft in the chimney, the presence of fuses against water overheating.
Robust and practical design of the device.
Attractive appearance.
The heat exchanger is made of copper with an efficiency of up to 93%.

Minuses:

High price.
Designed for one water intake.
This model is sometimes difficult to find in stores due to the fact that the product is instantly sold out of stores.

The best geyser with turbo hood

Hyundai H-GW2
Gas water heater Hyundai H-GW2 made of durable and high-quality materials, which positively affects its operation and extends its service life. The small and compact device is easily installed in a small kitchen or bathroom.

Characteristics:

The water heater has a classic appearance and weighs about 8 kilograms.
The device is made of durable, high-quality and resistant materials, which allows it to be used in any conditions.
The column has an automatic ignition system, which has a positive effect on its performance and safety.

Pros:

The presence of an LED display allows you to control the outlet temperature, as well as recognize errors and breakdowns when they occur.
The device is equipped with a 4D-quard security system.

Lack of draft sensors in the turbo exhaust shut off the gas in case of danger and also prevent reverse draft. The flow sensor regulates the presence and level of liquid in the water heater.

The ionization sensor shuts off the gas in the absence of flame and in case of overheating.

Affordable price.

Minuses:

Cannot operate on bottled gas;
Requires frequent battery replacement;
Designed for one water intake.

The best geyser for low water pressure

Ariston Fast Evo 11C
Ariston Fast Evo 11C refers to instantaneous water heaters running on natural gas. The water heater has compact parameters and operates at a pressure of 0.10 bar.

Characteristics:

The geyser is triggered by automatic ignition, which is connected to the mains.
This water heater can be installed in an apartment or in a country house, since its productivity is 11 liters per minute, the water heats up to 65-70 degrees.

Pros:

The main advantages of this model include its power, which is 19 kW.
The presence of an LED display allows you to find out the exact temperature of the outlet liquid, as well as correct a breakdown or error thanks to the appearance of special codes on the screen.
The safety system includes a flame sensor, overheat protection and a draft sensor.

Minuses:

One of the disadvantages is incorrect indicators on the display, since the set temperature may not correspond to the temperature of the exiting liquid.
This model is designed for only one water intake.

The best geyser for a private home

Bosch WRD 13-2G
In terms of versatility Bosch WRD 13-2G It is considered one of the best due to its fairly high power and performance.

Characteristics:

This model can be used to supply two water intakes.
The manufacturer offers the possibility of replacing the burner for liquefied gas.
Compact parameters, classic shape and color allow you not to hide the water heater without spoiling the overall design of the room.

Pros:

It has a built-in hydrodynamic generator, thanks to which automatic ignition is carried out.
The outlet temperature corresponds to the readings on the LCD display.
When the water pressure changes, the water heater maintains the set temperature.
The copper heat exchanger prevents heat loss and also significantly extends the service life.

Minuses:

The lowest pressure this model can operate with is 0.35 bar.
High price.

The best gas water heater for bottled gas

Mora Vega 13
Geyser Mora Vega 13 can supply hot water to two points.

Characteristics:

The model is presented in several variations, which allows you to choose the shape and size that best fits your design and space.
It runs on natural and bottled gas, which allows it to be used in apartments and private houses.

Pros:

A high-quality heat exchanger supplies water without changing its temperature parameters.
The diameter of the outlet pipe can be connected to the chimney with minimal neck parameters.

Minuses:

Very high price.
It is difficult to find spare parts in case of breakdown.

The best gas water heater with piezo ignition

Bosch WR 10-2P
Gas water heater Bosch WR 10-2P has a lot of advantages regarding its performance and external characteristics.

Characteristics:

The geyser has a classic shape and small parameters, making it almost invisible in the room.
This model can be easily converted from natural gas to liquefied gas, so it is practical both in a city apartment and in a rural house.

Pros:

Silent operation and compact parameters.
This model can operate even with very low water pressure.
Automatic ignition turns on when the tap is opened and turns off when the flow is turned off.
Piezo ignition allows you to avoid purchasing an endless number of batteries, which can fail at the most inopportune moment.
The security system includes a fire intensity regulator and a temperature sensor to prevent overheating.

Minuses:

The disadvantages of this model include sensitivity to liquid quality.
In the event of a breakdown, spare parts are very difficult to find, as is a specialized service center.
To clean the water heater, you need to completely disassemble the device.

The best gas water heater, semi-automatic

Bosch Therm 2000
Gas instantaneous water heater Bosch Therm 2000 has a lot of advantages, including the ability to easily switch to liquefied gas.
Characteristics:

The classic shape, small parameters and soft shades allow the device to be used in any design.
An electric type of burner that is powered by standard batteries.
The presence of a copper heat exchanger significantly improves operation and performance properties.
To use liquefied gas, manufacturers offer the use of an additional kit with a burner.
The device operates at a minimum fluid pressure of 0.15 bar.

Pros:

The presence of two separate handles for adjusting water pressure and power.
The water heater has high performance and heats more than 10 liters of liquid per minute.
The minimum diameter of the device's chimney is 11 cm.
The use of European components, which significantly affects the service life.

Minuses:

Availability of Chinese components, which often fail.
Automatic ignition is too loud.
Expensive spare parts made in Europe.

A gas water heater for an apartment or a gasified house may not have the function of switching to liquefied gas. The main thing is that the security system is at the highest level.

For a summer residence, flow-through models using bottled gas would be an ideal option, since hot water consumption is kept to a minimum.

The security system should include at least the most important points, for example, flame detectors, sensors for overheating and chimney backdraft.

The ignition system does not play a particularly important role. It all depends on your preferences and wishes. The same applies to size, color and other external parameters.

In this article you will learn:

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Frequent interruptions and shutdowns of hot water for the prevention and repair of centralized networks have become the norm today. If we add to this the seasonal increase in utility prices for hot water, the decision to install water heating equipment in a private house or apartment becomes quite reasonable.

In this block we will talk about a gas water heater: which one is better for an apartment and which one is better for a private house, we will look at the types of gas water heaters and the principle of its operation.

Principle of operation

The essence of the operation of a gas water heater is that gas is supplied through one pipe, which is a source of energy for heating, and cold water enters through the second pipe. Gas is supplied to the burners, and due to the open fire, the water in the heat exchanger is heated to the specified temperature values.

Gas combustion is possible only in the presence of oxygen, and during the processing of raw materials, harmful gases are formed. The ventilation system is responsible for these processes, which must comply with the requirements of SNiP and SanPin. All combustion products are ultimately discharged through the chimney.

Kinds

To choose a safe gas water heater for an apartment or house, you need to understand the appropriate type of equipment.

With open camera

Another name for such models is atmospheric. The essence of the operation of such a gas water heater is that air is taken from the room to burn the gas. This happens naturally. The designs of such devices are simple from a technical point of view, and these models are also more profitable in price. But security, unfortunately, is not the highest.

Disadvantages of atmospheric geysers:

High gas consumption.
High technical requirements for installation and installation location.
Low efficiency.
It is necessary to have a chimney of the appropriate configuration, length, and size.
The need to organize a high-quality ventilation system.
Fire hazard.
Risk of carbon monoxide poisoning if the system fails or the burner self-extinguishes.

With closed camera

These models are also called turbocharged.

The principle of their operation is somewhat different:

The combustion chamber is sealed.
Air intake is carried out not from the room, but from the street.
The design has one or more fans that pump air for gas combustion and facilitate faster removal of waste combustion products.

Pros of turbocharged models:

Economical gas consumption and better, complete combustion. When installing a water heater with a closed combustion chamber, gas consumption is reduced on average by ⅓ compared to atmospheric models.
High efficiency.
A high level of safety not only in terms of removal of combustion products, but also protection from overheating of the unit.
Possibility of using a coaxial chimney.
A fully automated system operation process that does not require frequent user control.

Minuses:

Energy dependence. Typically, such geysers are also connected to the electrical network.
There is background noise when the system is operating, so you need to think carefully about the placement location.

When choosing between the options described above, it is definitely better to choose a gas water heater with a closed combustion chamber, especially if you plan to install it in an apartment.

With piezometric ignition

Models with piezometric ignition have long appeared on the market, displacing equipment with manual ignition, proving to be simpler, more convenient, and safer to maintain.

Geysers of this type are equipped with a button on the front panel, pressing which activates the piezometric element. It provides a spark that ignites the pilot light. Then everything functions automatically - the gas supply valve opens, the water dispenser lights up, the water is heated and supplied to the water intake point.

With electric ignition

These are the most reliable and safe automatic gas water heaters of the latest generation. The ignition system operates from a set of pairs of batteries, which provide the charge necessary to produce a spark. When choosing such a model, you don’t even need to press any buttons - just open the water tap, and ignition is carried out autonomously, as well as stopping the burner from burning.

Selection options

Once you have understood for yourself which gas water heater to choose based on its operating principle, it’s time to understand the important technical characteristics.

Power

The power indicator affects how quickly a certain volume of water will heat up. But it also affects gas consumption, and in the case of energy-dependent models, also electricity consumption. Therefore, the power should be optimal for specific conditions, and not underestimated or overestimated.

All equipment is divided into 3 categories:

low power - here the values will be from 17 to 19 kW;
medium - range from 22 to 24 kW;
high - power reaches 28-31 kW.

For a family of 3-4 people, medium-power equipment is suitable. If you need to choose a gas water heater for an apartment where a family of 1-2 people lives, then 17-19 kW will be just right. The best geyser for a private house with a large area and a large number of water intake points is 28-31 kW.

Type of burner

Which gas water heater is the most reliable, based on the type of burner? Let's consider both available options, their pros and cons:

Constant power. This is a standard scheme that was present in the very first models of gas water heaters until the development of modern systems. A constant power burner is characterized by inconsistent water pressure, requires manual adjustment, affects higher gas consumption, and it is not always convenient to set the desired water temperature.
Modulating. An excellent option, since it assumes several burner operating modes, which change automatically, based on the water pressure and its flow from different water intake points. Stability of pressure, temperature, and the absence of additional actions for the operation of the system are the undoubted advantages of modulating models. But their price, naturally, is somewhat higher.

Heat exchanger

The gas burner heat exchanger is one of the main working units of the system. Therefore, its device must be of high quality and reliable. The following materials are mainly used today:

Copper. Expensive water heaters are equipped with heat exchangers made of copper, which does not corrode, has high heat transfer, and is durable. The only negative is the price and heavy weight.
Steel. The best option based on the criteria of durability, cost, anti-corrosion properties and strength. Of course, in general its characteristics are somewhat inferior to copper, but for many this is not critical. The main thing is that the manufacturer you choose does not skimp on the manufacture of the heat exchanger and that its design has a good alloy base and thick walls.

Safety

Gas water heaters have the following elements in the device:

Traction sensor;
Temperature control sensor;
Flame sensor;
Gas sensor;
Overheating protection system.

Which geyser to choose?

There are a few more points that need to be taken into account when choosing a gas water heater for an apartment or for a private house:

Installation location and equipment dimensions. Classic models have dimensions of 700*450*250 mm. If you need a more compact speaker for installation in an apartment with a small kitchen, you can choose a device with dimensions of 550*328*182 or 590*340*140 mm.
Price. More expensive equipment is supplied by companies such as Bosch, Ariston, Termex, and AEG. Models from Electrolux, Neva, Gorenye are cheaper, but this does not mean that they will be bad - in the line of these manufacturers there are options that are very decent in quality, characteristics and components.

Rating of geysers

Let's look at a review of the most popular geysers in different categories so that you can clearly see the difference and make your choice.

Bosch WR 10-2P

This model deserves its place in all ratings of geysers. It is considered universal - suitable for installation in a private house to be able to use both natural and liquefied gas, and for a small apartment for a family of 1-3 people. The price is very attractive for the average buyer.

Characteristics:

Power - 17.4 kW.
Open combustion chamber.
Ignition based on a piezoelectric element with a push-button mechanism.
Efficiency - 10 l/min.
Gas consumption - 2.1 m3/h.
Dimensions - 580*310*228 mm.

The only disadvantages noted are sensitivity to water quality and the need for almost complete disassembly of the equipment if you need to clean the filters or heat exchanger.

Model Bosch WR 10-2P

Ariston Fast Evo 11C

This is the best geyser for an apartment with two or three water intake points.

Characteristics:

Power - 19 kW.
Efficiency - 11 l/min.
Electric autonomous ignition, which operates from the mains.
Dimensions - 310x580x210 mm.
There is a display that displays the set temperature data and a code in case of an error in the system.

According to reviews, sometimes there is temperature instability for some time after turning on the equipment. Otherwise there are no complaints.

Model Ariston Fast Evo 11C

Neva 4510-M

This gas column was included in the review of the best primarily because of its very low price, at which good quality has been proven in practice.

Characteristics:

Power - 17 kW.
Productivity - 9-10 l/min.
Dimensions - 624x356x186 mm.
The combustion chamber is open.
Electric ignition.
There is a display.

Among the disadvantages, users note some technical shortcomings, for example, the use of sealant and rubber bands instead of threads to connect parts. Some materials are quite flimsy, which can cause further leakage of the system. But if we take into account the cost of the unit and the fact that, subject to the conditions of connection and operation, it will last for at least 5 years, then we can consider these shortcomings not critical.

Model Neva 4510-M

Bosch WTD 27 AME

Powerful equipment that can be safely called a gas water heater for a private home with a large number of water intake points.

Characteristics:

Power - adjustable from 6 to 47 kW.
Operates on natural and liquefied gas - consumption is 5.1 and 3.8 m3/h, respectively.
The combustion chamber is closed.
Dimensions - 452*775*286 mm.
Productivity - 2.5 -27 l/min.
There is a display.
Good protection and automation system.