Choosing a flowing gas water heater

Popular models of gas water heaters for an apartment

Consider the best flowing gas water heaters for an apartment from the most famous and well-established manufacturers.

Neva 4511

This water heater is produced by the domestic company Neva.

The performance of the unit is 11 l / min, and the power is 21 kW. The equipment package includes an open combustion chamber, electric ignition, power and heating indicators, as well as a thermometer.

In addition, there is a function - gas control. The geyser works on batteries.

The price is quite affordable.

Bosch WR 10-2P

The unit is quite economical, with a capacity of 10 l / min, its power is 17.4 kW.

The ignition is piezoelectric, it instantly ignites the burner, while there are no pops when the batteries are dead, as is the case with other types of ignition.

There is no flame modulation, so households will need to adjust the heating temperature from time to time.

Gas instantaneous water heater Bosch WR13-2 P23

Electrolux GWH 265 ERN Nano Plus

This model has also gained wide popularity, and has mostly positive reviews. It is one of the best geysers from a renowned manufacturer. Buyers note the stable operation of the water heater even at low water pressure, and also emphasize simple operation. Externally, the device looks very presentable.

Such a column has a power of 20 kW and a capacity of 10 l / min. The combustion chamber here is open, there is a control panel with an LCD display, a thermometer and numerous security systems are also included.

Geyser Electrolux GWH 265 ERN Nano Plus

A gas instantaneous water heater is a device that has found active use in many apartments.

When choosing equipment, you should pay attention to technical specifications, as well as read user reviews. Installation of equipment should be entrusted to specially trained people

Power and performance

Power and performance indicators are closely intertwined: the more powerful the device, the more water it can heat in one minute.Conventionally, devices can be divided into the following groups:

• 16 - 20 kW - heat about 11 liters per minute. This is enough to provide one water point;
• 20 - 25 kW - pass 12 - 15 liters of liquid, which is enough for two mixers;
• 25 - 30 kW - can supply at least 16 liters, and therefore are used to supply three or more points.

It is believed that one mixer "requires" 6 - 7 liters per minute, therefore, in order to select the optimal performance, it is necessary to multiply the number of available points of consumption by 7. It would be useful to slightly increase the resulting value so that the operation is sure to be comfortable. So, if you have 3 mixers installed: a sink, a sink, a bath, then for their simultaneous use you will need a throughput of at least 21 liters.

Main varieties

Flow type gas water heaters (columns) are small in size, making it possible to install them in small spaces (in the bathroom or in the kitchen). The purpose of the device is to quickly heat the water passing through the heating element in the column. An important requirement for the flow type of technology for stable operation is the presence of a gas pressure of 12 mbar. There are two types of gas flow heaters: with an open combustion chamber and closed. Both types have their advantages and disadvantages.

This is useful: what There are different types of water heaters and how to repair them.

In a column with an open combustion chamber (atmospheric), the combustion of the burner uses the air coming from the room in which the unit is installed. The supply of oxygen and the exit of flue gases is carried out through the natural movement of air masses.Atmospheric instantaneous gas water heaters are equipped with a simple device without complex automation. They are considered reliable and durable in use.

In this video, we will learn how to repair a gas heater:

A turbocharged column is better because oxygen from the street is burned during combustion (they have a coaxial chimney). These models have several advantages:

1. The use of modulating types of burners with low gas consumption.
2. They can work at low water pressure from 0.3 MPa.

Disadvantages include volatility and high cost. To ensure the normal operation of the structure, the installation of a stabilizer and a UPS is required. With sufficient automation equipment, they can fail, as there are frequent power surges in the network.

Advantages and disadvantages

There are a large number of different types of units for heating water. Everyone chooses according to their taste and possibilities.

Main advantages:

• produces an unlimited volume of water compared to storage heaters;
• compactness allows you to install it in a small room;
• breakdowns of additional functions are easily and inexpensively eliminated;
• maintenance is not time-consuming (it will not be difficult to disassemble and clean);
• with the help of sensors, a possible gas leak is excluded;
• fuel savings, as natural gas is much cheaper than electricity.

Different types of water heaters according to the technical device must be selected, taking into account the conditions in which they will be installed. Consideration should be given to the characteristics of the premises. For this you need:

• the presence of a chimney for the removal of combustion products;
• take into account the volume of water for the required consumption, as well as the number of points of intake;
• is there free space for convenient use of the column;
• compliance with the design of equipment and room.

installing a water heater is better to invite a specialist. He will determine the draft and bring the gas and water pipes. In addition to the positive aspects, there are also negative characteristics in the operation of a gas flow device:

• installation must be carried out by a master;
• for preventive maintenance, carry out regular maintenance;
• observe the instrument carefully to ensure that there are no possible leaks of explosive gas.

Ignition types

The columns differ in the automation of the ignition processes. It is divided into two types: automatic and semi-automatic. Automatic ignition is carried out by the device independently. Only one burner is built into the design. When the hot water tap is opened, the flame is ignited by the spark produced by the column. The power source can be electric ignition or batteries.

In new types of columns there is a hydroturbine that generates electricity when water is supplied, so the operation of the columns does not depend on the power supply. An electronic programmable unit is built in to regulate the water temperature.

Semi-automatic water heaters have two burners. The first burns constantly and performs the function of an ignition wick. The flame is ignited by a piezo ignition. The ignition of the second (main) occurs when the tap of the water supply system is opened. Each type of column is equipped with a security system. If the gas or water pressure is insufficient or exhaust gases do not come out well, the device turns off and refuses to work.

Briefly about electric water heaters

The electric water heater consists of a water heating regulator, as well as a tubular heater and a thermally insulated tank. The water entering the tank is gradually heated and consumed. Models of some manufacturers are equipped with additional equipment.

An electric water heater is the best helper for those who are afraid of gas equipment. However, this equipment is unlikely to appeal to those who already pay too much for electricity.

The principle of operation of an electric heater depends on what type it belongs to. There are flow and storage water heaters.

Boilers come with "wet" and "dry" heating elements. The first type (“wet”) is a standard heating element in direct contact with water. Unfortunately, this often leads to corrosion and reduced efficiency.

"Dry" heating elements are located in a special design, the surface of which is covered with thermal enamel. Such an unusual solution made this equipment much more durable.

Electric water heaters are often bought both for supplying hot water to a residential building and to any industrial facility. Since the heating elements operate in automatic mode, you can easily maintain a certain temperature regime, and periodic heating will help save electricity. And a compact version - a tap groove - is installed in the kitchen of a summer residence or in temporary residences.

Also, modern models are equipped with special thermally insulated tanks, so during heating, energy consumption is minimized. Models equipped with a stainless steel flask are especially popular. They are more durable and reliable.

Even if the boiler fails, you can fix it at home.You just need to find the right parts and repair

Recommendations for choosing a unit

When choosing a column, you need to take into account many parameters, we will designate the main ones.

Performance, i.e. the ability of the device to produce a certain volume of hot water prepared for supply to the water intake for a specific unit of time.

Some owners have encountered an unpleasant phenomenon. When two taps were opened at the same time, for example, in the kitchen and in the bathroom, there was not enough water.

A compact wall-mounted model of a gas column is the most popular version of such a heater. It is small in size and fits well into almost any interior.

This is due to insufficient performance. For the situation described, a device that delivers about 10 l / min is suitable. Most of the geysers from the presented rating of reliability and quality in terms of performance correspond to this level.

Small dimensions make it easy to find a suitable place for installing a gas heater. Most often, such devices are placed in the kitchen or in the bathroom.

Camera type. Devices equipped with a closed chamber are usually several times more expensive than conventional devices with an open chamber. The latter can only be installed in houses where a chimney is already provided for this.

In closed chambers, exhaust gases are forced to be removed thanks to the built-in turbine. It makes sense to spend money on such an expensive purchase only when there is nothing else left, because it is most convenient to use gas to heat water.

The compact coaxial chimney is very easy to install, it helps to solve the problem of removing combustion products and supplying oxygen to the boiler of an independent heating system and hot water preparation

Method for regulating gas consumption. The most convenient in this regard are devices equipped with a device for simulating a burner flame. In such a model, it is enough to set the appropriate settings once, and the water temperature will remain comfortable, regardless of the pressure or temperature changes of cold water in the system.

But devices with such a function are quite expensive. Those on a tight budget will have to choose from models with smooth or stepped adjustment.

You will need to set the settings almost before each use of hot water. Usually the temperature is made higher, and then it is regulated by mixing cold water into the stream.

Connecting a flowing gas water heater is best done directly, and not through adapters. Before buying, you need to check the diameter of the connecting elements and compare them with the dimensions of gas and water pipes.

Dimensions of the device and method of installation. The most popular models are usually small, wall-mounted and vertical. If the location for the column has already been selected, you should familiarize yourself with the requirements of the manufacturer. Perhaps the device cannot be installed close to a cabinet, wall and other objects, a certain clearance must be provided.

The presence of a display that reflects the status of the column and the temperature of the water flow is very desirable, but not necessary for the normal operation of the device

Additional factors.It is necessary to remember such points as the compatibility of the selected model with the existing communications to which it will be connected, as well as the availability of service centers and the specifics of fulfilling warranty obligations.

Problems with installation and warranty are typical for some imported devices.

Top 10 best gas heaters according to users

In order to choose the right device, it is worth considering the rating of gas water heaters for their quality and reliability, compiled on the basis of consumer opinion.

First place for Ariston Gi7S 11L FFI

The device has an excellent external design that everyone will like. The unit has multi-level protection and is equipped with a closed combustion chamber, which does not allow combustion products to enter the room. The display shows all the necessary information. The premium class indicates that the model keeps the set temperature conditions well and has a low noise level. Can run on natural or bottled gas.

The advantages of an automatic geyser include touch control, good external design, the presence of an information display and a wide variety of functions. This model is more suitable for a private building.

Second place - Ariston Fast Evo 11B

You can heat the water up to 65 degrees. The combustion chamber is made in an open version. The equipment will fit well into any style of interior.

The advantages include compactness and easy operation, as well as quiet and stable operation. Among the shortcomings can be noted the slow ignition of the burner.

Third place - Bosch WR 10-2P

The unit with an automatic shutdown system is a universal model, it is suitable for any interior design solution. Using a special lever, you can easily and smoothly adjust the heating. A feature of the device is the presence of ionization control of the flame. The operation of the Bosch semi-automatic geyser is almost silent. Even with pressure surges in the system, the column maintains the desired temperature. The heat exchanger is made of copper and equipped with a burner made of steel. The equipment is controlled mechanically, which ensures reliability and simplicity.

Bosch W 10 KB

Combustion products are well discharged thanks to an innovative system. Special touch sensors protect the device from overheating. If the flame goes out, the gas will stop flowing automatically. High quality workmanship is combined with practical and compact forms. The device works well even with a small pressure. The advantage of the equipment is fast ignition, but it is quite loud. If you do not know which geyser is the most reliable, then take a closer look at this model.

Gorenje GWH 10 NNBW

This water heater runs on natural gas. It has small dimensions, which allows it to be placed in small spaces. The device is controlled by special regulators. The display provides status information and selected modes. A distinctive feature of the equipment is its high performance, as well as good protection. Quiet operation is another advantage.

Neva 4511

This Russian geyser will work well both in a private house and in an apartment. Its peculiarity is that the equipment operates at a fairly low pressure in the system.To control the level of the flame, the device has a special ionization sensor. The panel contains a screen and temperature control levers. In addition, the device provides the desired temperature and water pressure.

Electrolux GWH 265 ERN Nano Plus

The burner is made of stainless steel. The security system has several levels. The equipment functions smoothly at low pressure. The advantage is fast ignition and quiet operation of the device.

Among the shortcomings, it should be noted the low level of quality of electronics

If you do not know how to choose a geyser for an apartment, pay attention to this unit

Oasis 20 kW white

Small and cheap model. The equipment does not have a constantly burning igniter, which reduces gas costs. Batteries provide automatic ignition in the event of a power outage. To control the equipment, there is a small display and three knobs. The device quickly heats up water, and its placement does not require much space.

SUPERLUX DGI 10L

This is a low power device. It has electric ignition and automatic burner operation. The unit allows you to select the operating mode (winter or summer), this will make it possible to reduce gas costs. It has a low cost and at the same time good efficiency. Works pretty quietly.

Timberk WHE 3.5 XTR H1

This model is one of the most budget options. Ergonomic design and small dimensions will allow the device to fit into any style and interior design solution. Water heating is carried out instantly. Protection systems will protect equipment from problems, and low cost makes it popular with buyers.

Advantages of a gas column

Good things are easy to get used to. Today's housewives are reluctant to use cold water for domestic purposes: it is, of course, more pleasant to wash dishes in warm water, and for hand washing it is advisable to heat water not in a huge "boil-out" on a gas stove. One of the most economical options for homes where there is no hot water supply is an instantaneous gas water heater. It has earned positive reviews from people for several features:

• Heating water with gas is cheaper than electricity;
• Easy to operate and safe;
• Not inferior in performance to storage water heaters - boilers;
• Can simultaneously serve 2-3 points of water flow;
• Heats water even if the electricity is turned off.

A gas water heater is more economical than an electric one

Modern gas water heaters are not harsh units of the 70s of the last century, which were installed in many Khrushchevs. They had manual control, were kindled with matches and "saluted" with water when trying to dilute the too hot stream. Their today's descendants are more advanced and comfortable, but they also have many individual features. Gas water heaters differ in several ways.

You should pay attention to them when buying a unit:

1. Power.
2. Ignition type.
3. Burner type.
4. Gas pressure in a gas pipeline.
5. Compatibility with water pressure.
6. Type of removal of combustion products.

Overview of the best manufacturers of gas water heaters

In order for the long-awaited purchase to work for more than one year, it is necessary to choose a water heater from the most popular companies that offer geysers.

1. Ariston - Italian quality at affordable prices.The columns of this company are equipped with various additional functions: maintaining the set temperature, LCD display, 3 burning power modes. Composite units and components are made of high quality composite materials, which guarantee a long service life and corrosion resistance of the components. Intelligent microcomputer control keeps the water temperature at a constant level. The line of equipment of this company combines high technology, European quality and long-term experience of the company. Due to its small size, the compact design saves space in the room and is suitable for any interior.

2. Vaillant is a quality German manufacturer on the Russian gas equipment market. The geysers of this company have a power of 10 to 30 kW. The devices are characterized by high performance and unpretentiousness in operation. The main advantages of this brand include: simple operation using a convenient LCD display, original design and quiet operation. The equipment is equipped with a reliable copper heat exchanger.

3. Junkers is a line of speakers manufactured in Germany by Bosch. Water heaters are adapted for Russian operating conditions. A distinctive feature is the presence of flame modulation, due to which the power automatically changes depending on the water supplied. They do not heat up from the outside, have a protective coating and operate silently. The devices are characterized by high efficiency.

4. Electrolux - worthy quality of Swedish equipment at the best price. Geysers of this company have a power of 17 to 31 kW.The burner is made of stainless steel, and the heat exchanger is made of copper, which guarantees a long consumer life of such equipment. The geyser has a hydraulic type safety valve, which serves to protect the unit from overheating. Since geysers are equipped with a small number of nozzles, the equipment operates silently. Some models (for example, Electrolux GWH 265) are equipped with automatic flame adjustment to keep the coolant temperature unchanged even if the water pressure decreases. For the safety of work, an innovative Intelligent control system is used, which monitors the functioning of all sensors and systems.

5. Termaxi are inexpensive Chinese-made geysers that are in demand among consumers. They have modulating burners, which is a competitive advantage compared to other brands. In the line of water heaters there is a model capable of producing 12 liters of hot water per minute. Up to three water intake points can be connected to such equipment.

   

   

   

   

   

   

   

   

   

6. Beretta - Italian water heaters of excellent quality. The advantages of the models of this company: ease of use, thoughtful design, high build quality, a huge range. The company's product line includes 2 types of water heaters: with flame modulation and with electric ignition.

Types of geysers

With open chamber

When the firebox is open, the air that supports combustion comes from inside the room where the water heater is installed.

For example, from the bathroom, where installation is not always allowed, or from the kitchen.In private houses, as a rule, specially adapted non-residential premises with 3-fold air exchange are allocated for the column.

An apparatus of this type is equipped with an atmospheric burner and an outlet to a vertical (2 turns of 90 ° are allowed) chimney through which exhaust gases are removed using natural draft.

For apartment buildings, based on regulatory documents, it is prohibited to use the ventilation duct as a smoke duct.

Advantages:

• comparative simplicity of design;
• energy independence of a significant part of the models;
• noiselessness of work;
• big choice;
• price availability.

Flaws:

• air intake from the inside;
• the need for a chimney.

Appliances with an open combustion chamber are installed both in apartments and in private houses. For the latter, they are more suitable. At least for the reason that technical issues are easier to solve and there are fewer problems with the gas or fire service.

Closed camera

The requirements for the installation of devices with a closed firebox are relatively not so stringent - their working compartment is hermetically “sewn up”, so the air is consumed not from the interior, but from the street.

Instead of a standard vertical chimney, a coaxial horizontal chimney is used - it consists of an inner pipe through which combustion products are removed using an electric fan, and an external one designed to supply oxygen from the outside.

In such devices, the atmospheric burner is replaced by a turbocharged one. Since the air for the operation of the column is taken outside the home, such a water heater can be installed in almost any room.

Advantages:

• increased operational safety;
• possibility of installation in any room;
• high efficiency and environmental friendliness of work;
• comfort of use;
• comparative ease of installation.

Flaws:

• volatility: the fan is connected to the network;
• noise during operation;
• relatively high price.

Devices with a closed combustion chamber are installed in virtually any building. In high-rise residential buildings in some regions, a coaxial pipe is prohibited - only its separate version is allowed only with air flow through the wall.

With piezometric ignition

In devices with a semi-automatic ignition mode, there are 2 burners: one is a pilot, which operates continuously; the other is the main one, working only in the interval between turning on and turning off the tap.

When starting the water heater: the corresponding button is pressed on the front panel; candles give caviar; pilot wick ignites. After opening the DHW tap, the fire spreads to the main burner.

During the operation of the device, both heaters function, after the hot water is shut off, only the pilot one burns. This ignition option is far from economical, but in places with frequent power outages it is popular with the population.

Advantages:

• cheaper water heaters;
• energy independence;
• ease of use.

Flaws:

additional, albeit insignificant, gas consumption.

Devices with piezometric ignition are non-volatile, therefore they are installed in houses, apartments and cottages, in which power outages are a frequent occurrence. In addition, the financial losses from a constantly burning wick are insignificant.

With electric ignition

Gas in columns operating in automatic mode is supplied and ignited only after turning the tap - the rest of the time it is not consumed.

Functioning is carried out using an electronic unit that controls the ignition and combustion process. 2 batteries are directly involved in igniting the gas, which need to be changed about once a year - it is with their help that the sparks necessary to form a fire are created.

Models are also produced that are switched on from the mains 220 V - in this case, an additional electronic stabilizer is purchased, which extends the life of the water heater, in particular imported.

Advantages:

• use in more modern models;
• fuel consumption is the minimum required;
• increased operating comfort.

Flaws:

dependence on electricity.

It is advisable to install devices with electric ignition in cottages and apartments, the supply of energy to which is carried out without interruptions and power surges. Battery-powered appliances are suitable for homes, regardless of the mode of electricity supply.

What elements should you pay attention to?

When choosing a column, preference should be given to models with a copper heat exchanger. It may be covered with solder, but should not be made of thin sheet metal. Most often, models of Chinese manufacturers have tin heat exchangers. The service life of such columns does not exceed three years.

Regardless of the ignition method, an automatic type geyser starts working when water passes through the water block. If there are problems with the supply of a spark, then the cause, first of all, must be sought in the block (+)

The low cost is achieved due to the cheap quality of the metal, which burns out over time. This leads to the need to purchase a new gas column.

Another important characteristic of the heat exchanger is the inner diameter of the tubes. The wider the tube, the less often it is necessary to clean the heat exchanger from scale and small debris from old water pipes

It looks like a low-quality heat exchanger, which is installed on cheap models of instantaneous water heaters. Inside you can see that the metal is not made of copper and is an alloy of unknown origin.

Also an important detail is the water block of the column. This element must be made of metal

There are models made of plastic.

It looks like a quality heat exchanger that will last more than five years. It can be visually seen that it is made of copper and has sufficient thickness. Some manufacturers cover this element with solder or other coating.

Since the block contains a membrane and a mesh filter that must be changed, frequent unscrewing spoils the plastic thread and leads to the need for a complete replacement of the water block.