Flowing gas water heaters: TOP-12 models + recommendations for the selection of equipment

Vasily Borutsky
Checked by a specialist: Vasily Borutsky
Author: Maria Khodun
Last update: December 2024

The presence of hot water today is considered one of the indicators of comfort. For decades, flowing gas water heaters have been able to use this benefit of civilization around the clock. They can instantly heat the required amount of water.

Directly the heating process is provided by a gas burner. And the device itself, due to its small size, is mounted on the wall. But which model to give preference to and how not to miscalculate when buying a water heater? We will talk about this in our article - we will consider the 12 best offers in the market, focusing on demand among buyers and reviews of owners.

We also give useful tips on choosing a water heater, given which you can choose the right option for your home.

The best instantaneous gas water heaters

A place
Product
Rating
Production
Type of ignition
Power
Price
220 V network speakers
#1
95
/ 100
14 l / min
from the network
24 kW
#2
94
/ 100
10 l / min
from the network
20 kW
#3
92
/ 100
11 l / min
from the network
19.58 kW
Autonomous columns of the budget price segment
#1
94
/ 100
10 l / min
from batteries
20 kW
#2
93
/ 100
8 l / min
from batteries
16 kW
#3
93
/ 100
6 l / min
from batteries
12 kW
Standalone mid-range speakers
#1
94
/ 100
10 l / min
from batteries
20 kW
#2
92
/ 100
12 l / min
from batteries
24 kW
#3
90
/ 100
13 l / min
from batteries
26 kW
High-end standalone speakers
#1
93
/ 100
13 l / min
from batteries
22.6 kW
#2
91
/ 100
14 l / min
from batteries
28 kW
#3
91
/ 100
10 l / min
hydraulic turbine
17.4 kW

220 V network speakers

#1

Ariston Fast Evo 14C

High power gas heater with electronic temperature control

Expert rating:
95
/ 100

The Italian brand instantaneous water heater boasts excellent performance. The volume of "production" is 14 liters per minute - this is enough to service two drainage points. Such a flower covers the needs of a family of 3-4 people.

The Ariston Fast Evo 14C model is equipped with a copper heat exchanger, an informative display and a complete security system. Ignition is carried out automatically when water is supplied; for operation, it is necessary to connect to the electric network.

Technical features:

  • productivity - 14 l / min;
  • thermal power - 24 kW;
  • combustion chamber - open;
  • management - electronic;
  • additionally - gas control, protection against overheating, water heating limiter;
  • dimensions - 37 * 55 * 19 cm;
  • weight - 10 kg.

The combustion chamber is in an open type column, therefore, no arrangement of air supply from the street is required. However, the room must provide effective ventilation.

Users like build quality, the presence of a thermometer and a security system. Some owners do not like long firing up, but it can be avoided by spending a little more time on the initial setup of the device.

Advantages
  • High productivity - 14 l / min
  • Automatic temperature control
  • Display and electronic control
  • Easy installation
  • Complete security system
disadvantages
  • No self-diagnosis
  • High price
  • Temperature stabilization - about 15 seconds
#2

Zanussi GWH 10 Fonte Turbo

Demanded water heater with a closed combustion chamber

Expert rating:
94
/ 100

A gas water heater with a closed combustion chamber helps to maintain a microclimate in the room - air is supplied to the combustion chamber from the street. There is no smell of gas in the room. Efficient air exchange is ensured by an integrated fan.

The boiler is connected to the mains. To ensure uninterrupted operation of the water heater during a power outage and to protect equipment from power surges, it is necessary to connect a UPS.

Technical features:

  • productivity - 10 l / min;
  • thermal power - 20 kW;
  • combustion chamber - closed;
  • management - mechanical;
  • Additionally - frost protection, overheat protection, water heating limiter;
  • dimensions - 33 * 55 * 19 cm;
  • weight - 10 kg.

The water heater has a display with temperature indication. Two rotary levers are provided for control. The settings must be adjusted every time the pressure in the system is changed, since the model does not have automatic flame modulation.

Advantages
  • Affordable cost
  • Closed combustion chamber
  • Economical gas consumption
  • Multi-level security system
  • Work at a low pressure of water
disadvantages
  • Complaints about noisy fan operation
  • No automatic flame modulation
#3

Ariston NEXT EVO SFT 11 NG EXP

Stylish design, electronic control and integrated security system

Expert rating:
92
/ 100

A closed combustion chamber is installed in this column, so you should find a place for the gas outlet in advance. To remove the processed gas from the water heater, a two-layer coaxial cable is used. The external panel is made according to the sketches of the Italian designer.

The column heat exchanger is made of copper. A self-diagnosis system and electronic temperature control are provided. Control panel with display and touch buttons. The temperature range is 35 ° C ... 45 ° C.

Technical features:

  • productivity - 11 l / min;
  • thermal power - 19.58 kW;
  • combustion chamber - closed;
  • management - electronic;
  • Additionally - frost protection, overheat protection, water heating limiter, self-diagnosis;
  • dimensions - 33 * 55 * 18 cm;
  • weight - 12 kg.

Users like the high level of security - in the event of a malfunction, the self-diagnostic system will work and the unit will shut down.

Advantages
  • Display and electronic control
  • Closed combustion chamber
  • Attractive design
  • Maintaining a stable temperature
  • Integrated Security System
disadvantages
  • Noisy fan operation
  • High price
  • Natural gas only
  • The need for a coaxial chimney

Autonomous columns of the budget price segment

#1

Zanussi GWH 10 Fonte Glass La Spezia

Hot Selling Instantaneous Gas Consumption Water Heater

Expert rating:
94
/ 100

The column has a modern stylish design - the front panel with a pattern. Instantaneous water heater can work even with a minimum pressure of water and gas. The column heat exchanger is made of copper.

Technical features:

  • productivity - 10 l / min;
  • thermal power - 20 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - protection against an overheat, restriction of temperature of heating, gas control;
  • dimensions - 33 * 55 * 19 cm;
  • weight - 10 kg.

Users like that the column is easy to set up, as well as the availability of a security system. The downside is that while turning on at two points, the water temperature drops.

The column has a great design, so it will become an adornment of any kitchen. The water heater will fully cover the water needs of one or two residents.

Advantages
  • Attractive design
  • Silent work
  • Work at a low pressure of water
  • Multi-level security system
disadvantages
  • No self-diagnosis
  • No flame modulation
#2

Oasis 16

Practical and inexpensive geyser with the Winter-Summer switch

Expert rating:
93
/ 100

The budget proposal from the Russian manufacturer is the non-volatile Oasis 16. The ignition is carried out on batteries, the device operates exclusively on natural gas.

The Oasis 16 model economically consumes “blue fuel” - in the column there is a “Winter-Summer” switch, which provides smooth adjustment of water heating in different seasons. Thanks to this technology, savings of up to 40-50% are achieved.

Technical features:

  • productivity - 8 l / min;
  • thermal power - 16 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - heating temperature limitation, gas control system, safety valve;
  • dimensions - 32 * 52 * 15 cm;
  • weight - 6.3 kg.

Customer reviews are mostly positive. The unit is chosen because of the good price / quality ratio and a high level of efficiency. However, there are few complaints from users regarding leakage of the heat exchanger.

Advantages
  • High efficiency - 90%
  • Elegant design
  • Gas saving mode - Winter / Summer switch
  • There is a gas control system
disadvantages
  • It works only on natural gas
  • Low productivity
  • No self-diagnosis and protection against overheating
#3

Zanussi GWH 6 Fonte

Budget and compact water heater - a good option for a single point of water consumption

Expert rating:
93
/ 100

The column heat exchanger is made of copper. On the front panel there is an LED display on which performance indicators are displayed. A powerful security system protects the device from unforeseen breakdowns. The maximum temperature of hot water reaches 65 ˚C.

Technical features:

  • productivity - 6 l / min;
  • thermal power - 12 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - protection against an overheat, smoke control sensors, the thermometer and the display are provided;
  • dimensions - 30 * 48 * 14 cm;
  • weight - 4.4 kg.

The gas flow shows good performance even with a low water pressure. When you turn on the column does not emit claps and functions quite quietly.

Such a small column is ideal for one person, and also fits perfectly into a small kitchen or even a bathroom.

Advantages
  • Compact dimensions
  • Work at a low pressure of water
  • Temperature display
  • Smoke traction sensors
disadvantages
  • No fault self-diagnosis
  • Low productivity - 6 l / min
  • Thin wall of the combustion chamber
  • No batteries included

Standalone mid-range speakers

#1

Gorenje GWH 10 NNBW

High-quality assembly, ease of management and ease of connection

Expert rating:
94
/ 100

The geyser operates on natural gas. In a minute, the unit heats up to the required temperature of about 10 liters of water. A technique of this performance is suitable for a small family - a maximum of three people.

A copper heat exchanger is installed in the water heater; ignition occurs automatically when the water tap is opened. You need batteries to turn it on.

The front panel of the GWH 10 NNBW has a temperature display and two control levers. The column works when water is supplied at a pressure of 0.2-10 atm, so the water heater is included in the operation even at low pressure.

Technical features:

  • productivity - 10 l / min;
  • thermal power - 20 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - gas control, gas filter, heating temperature limitation,
  • dimensions - 32 * 52 * 15cm;
  • weight - 6.3 kg.

A variety of reviews confirms the relevance of the GWH 10 NNBW model. Users note a quick start, good build quality and ease of temperature adjustment. There are complaints that at the beginning of operation the column is noisy, but when it reaches the desired temperature it functions quieter. Batteries will have to be changed every quarter.

Advantages
  • Work at a low pressure of water
  • Copper heat exchanger
  • Water filters and gas inlet
  • Instant ignition and quick heating of water
  • Ease of Management
disadvantages
  • Few service centers
  • Single complaints about noisy work
  • No batteries included
#2

Electrolux GWH 12 NanoPlus 2.0

Reasonable price / performance ratio

Expert rating:
92
/ 100

The NanoPlus series unit is equipped with electronic ignition, an integrated security system and an LCD display. The model has an oxygen-free copper heat exchanger and a stainless steel burner. The water heater has stepless power adjustment.

The device is controlled mechanically - there are two rotating handles. In the column there is a sensor that turns off the gas supply with poor draft in the chimney.

Technical features:

  • productivity - 12 l / min;
  • thermal power - 24 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - flame monitoring, pressure relief valve, protection against water / overheating, chimney draft sensor;
  • dimensions - 35 * 61 * 18 cm;
  • weight - 8.22 kg.

The model received high user ratings. They praise the design, the speed of heating the water, the ability to connect two points of water consumption. The column also works at low pressure.

Deficiencies identified during operation affected the rating - the GWH 12 NanoPlus 2.0 model was awarded the second position in our rating.

Advantages
  • Multi-level security system
  • Intuitive controls
  • Oxygen-free copper heat exchanger
  • Self Diagnosis
  • Temperature and battery indication
disadvantages
  • Complaints about the work of service centers
  • Temperature jumps of 2-3 ° С
  • No batteries included
  • No automatic flame modulation
#3

BaltGaz Comfort 13

Natural and liquefied gas column

Expert rating:
90
/ 100

A domestic model with a thermal power of 26 kW is capable of serving three points of water intake. The unit is equipped with a copper heat exchanger, a digital display and a multi-level protection system.

Feature BaltGaz Comfort 13 - the ability to work on liquefied and natural gas. Such a water heater can be operated in a house, in a country house, or for heating water for industrial purposes.

Technical features:

  • productivity - 13 l / min;
  • thermal power - 26 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - gas control, protection against overheating and turning on without water, limiting the heating temperature;
  • dimensions - 35 * 65 * 24 cm;
  • weight - 12 kg.

According to the documentation, the minimum water pressure for triggering an automatic ignition is 0.15 atm. The display shows the temperature and battery level.

Despite the high performance characteristics declared by the manufacturer, users complain about the build quality of BaltGaz Comfort 13. They note “flimsy” switch handles, display malfunctions, and exacting water pressure.

Given the last drawback, such a column can not be recommended to residents of the upper floors, starting from the fifth. The protochnik is suitable for a family of 4 people. The column can be installed in private houses or on the first floors of high-rise buildings.

Advantages
  • Temperature and battery indication
  • Natural or LPG operation
  • Parts availability and maintainability
  • Warranty - 5 years
  • Service up to 3 points of water intake
disadvantages
  • Incorrect hydraulic modulation
  • Complaints about poor build quality

High-end standalone speakers

#1

Bosch WR 13-2B23

Instantaneous gas water heater with automatic temperature control

Expert rating:
93
/ 100

Therm 4000 series instantaneous water heater with piezoelectric battery ignition. The column power is 22.6 kW, which corresponds to the "production" - 13 liters of warm water per minute. The temperature range of the water at the outlet is 35 ° C ... 60 ° C.

The WR 13-2B23 does not have a display, as in most competing models. The activation indicator and gas supply are indicated by a light indicator located on the front panel. Control system - two rotary switches.

Technical features:

  • productivity - 13 l / min;
  • thermal power - 22.6 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - a sensor for overheating and flue gas control, gas control, water heating limiter;
  • dimensions - 35 * 66 * 22 cm;
  • weight - 13 kg.

Users praise the speed of heating the water and the reliability of the security system. The Anti Overflow sensor will automatically shut off the gas supply when the chimney is clogged and there is insufficient draft - this will protect residents from carbon monoxide poisoning.

However, the device of the famous brand has drawbacks. The main minus is that for ignition you need a good pressure of water, which is not always in houses with old water pipes.

Advantages
  • Good performance - 13 l / min
  • Silent work
  • Multi-level security system
  • Automatic temperature maintenance
  • Flue gas sensor
disadvantages
  • Sensitivity to water pressure
  • No display
  • No self-diagnosis
#2

Electrolux GWH 14 NanoPlus 2.0

High performance and multi-level security system

Expert rating:
91
/ 100

This heater heats up to 14 liters of water per minute. Non-volatile column with an open combustion chamber, display and battery ignition. The GWH 14 NanoPlus 2.0 model complies with European safety requirements - there is a temperature regulator, an integrated protection system.

The heat exchanger is made of high quality oxygen-free copper. Two rotary levers are provided for control, between them there is a mini-screen with a display of temperature and battery level.

Technical features:

  • productivity - 14 l / min;
  • thermal power - 28 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - protection against overheating, switching on without water and overpressure, chimney draft sensor, flame monitoring;
  • dimensions - 40 * 65 * 20 cm;
  • weight - 11.2 kg.

The water heater copes well with servicing two points of water intake. Users like the design, ease of operation and compact body dimensions.However, the unit also has weaknesses that should be considered when buying and operating a gas column.

Advantages
  • High productivity - 14 l / min
  • Temperature and battery indication
  • Automatic electronic ignition
  • Multi-level security system
  • Oxygen-free copper heat exchanger
disadvantages
  • Sensitivity to water pressure
  • Few service centers
  • No fault self-diagnosis
  • Periodic popping when turned on
#3

Bosch WRD 10-2G23

Gas column with power modulation and ignition from a hydro generator

Expert rating:
91
/ 100

High-tech water heater with innovative Hydropower technology - an automatic ignition unit powered by a hydro generator. Heat exchanger manufacturing material is high-quality copper, burners are stainless steel.

The LCD displays temperature information and error messages. The WRD 10-2G23 unit has modulation of equipment power and an integrated security system.

Technical features:

  • productivity - 10 l / min;
  • thermal power - 17.4 kW;
  • combustion chamber - open;
  • management - mechanical;
  • in addition - overheat protection, smoke and gas control sensor, flame ionization control, gas control;
  • dimensions - 31 * 58 * 22 cm;
  • weight - 11.5 kg.

The unit confirmed the reliability in practice, there are no complaints about the build quality and performance. However, users say that the column does not turn on at low water pressure - this problem is typical for residents of the upper floors.

Advantages
  • Automatic ignition from a hydro generator
  • Self Diagnosis
  • Silent work
  • Power Modulation
  • Flue gas sensor
disadvantages
  • Demanding for gas and water pressure
  • Complaints about the noise from the operation of a hydraulic turbine

Geyser selection criteria

In order not to make a mistake in choosing, before buying it is worth paying attention to a whole set of basic and additional characteristics of a water heater. This will help you to choose a truly high-quality and functional technique that is suitable specifically for your needs.

Key technical indicators

This category includes power, performance, material and quality of the heat exchanger and the number of sensors.

Feature # 1 - Type of Combustion Chamber

By the type of combustion chamber, all water heaters are divided into two categories: with an open chamber or atmospheric, and with a closed or turbocharged.

Atmospheric are considered more durable, since in such devices there is no complex automation. Turbocharged work thanks to electricity and turn on even with minimal gas pressure, but they are more expensive.

The method of removal of combustion products:

  1. Through the chimney. It is appropriate if the column is atmospheric. The chimney must be cleaned from time to time by the appropriate service.
  2. Across coaxial channel gas is forced out if a column with a closed chamber is installed. To do this, the column has a fan that runs on the network. This option is suitable for new buildings, since there is no chimney.

Owners should check traction status as often as possible. It is best to check with paper. Such a check should never be carried out with a lighter or match, otherwise an explosion could occur.

Coaxial pipe
A double coaxial pipe is used to remove carbon dioxide. Through the inner pipe, the processed gas goes outside, and through the outer pipe, fresh air enters the kitchen

Feature # 2 - instrument power

The amount of heated water that you can get directly depends on this indicator. There is useful and consumed power. When choosing a device, pay attention to the useful power.

Power of gas water heater
The optimal power indicator ranges from 17 to 50 kW. In order to be able to simultaneously include several points of water consumption, the power must be at least 21 kW. For a large house, you should choose a speaker with a power of 25 kW

Feature # 3 - Performance

Productivity is the amount of water the column heats per minute. In order to correctly calculate the required performance, you need to know the pressure head.

This is pretty easy to do. It is necessary to record the number of cubes on the counter, turn on the water for 1 minute. After this time, tighten it and then record the indicators again. The difference between the second and first values ​​will be the desired value.

If there is no counter, substitute a large tank. Today there are speakers whose performance is 5-6 liters. They are suitable for apartments with low pressure and old pipes. For two or three people, 12-14 liters will be enough.

Feature # 3 - Heat Exchanger

The durability of the column depends on the quality and thickness of the material of this part. Steel is durable but heavy. Such heat exchangers have a low cost, but are susceptible to corrosion.

Ordinary copper is short-lived. Highly purified copper heat exchangers have a higher efficiency compared to steel.

Such parts should be cleaned carefully and only with special means. If you choose the wrong detergent, the part may become worthless. For example, acid corrodes copper products and they subsequently begin to flow.

The rules and methods for self-service column are discussed in detail in this article.

To ensure safe use, users of the boiler use special parts:

  • Water overheating sensor it will protect against boiling water, and the safety valve is responsible for emergency discharge of water if there is a lot of pressure in the pipes.
  • Hydraulic valve protects column parts from overheating.
  • Ionization and combustion sensors they are triggered if, after the burner has extinguished, gas still flows.
  • Flow sensor turns off the water heater if the hot water tap closes.
  • Traction detector It works if the chimney is clogged with garbage so that no one is poisoned by carbon monoxide. And if there is no necessary water pressure, then the reduced water pressure sensor is activated and the column does not turn on.

A lot depends on their quality. All these details will save not only the device itself from damage, but also your health.

Additional technology information

Also, when choosing a gas column, it is worth paying attention to additional characteristics. For instance, front panel appearance important as the black column does not fit into the white kitchen.

Front Panel
On the front of the column are a small LED-screen displaying temperature indicators and three work knobs. For Winter-Summer mode, as well as flame and temperature controls

Area of ​​bathroom or kitchen and the dimensions of the column itself. If the kitchen is small, and 3 people use water, then you should look for a place in the bathroom or donate the area.

Gas type. Pay attention to what gas is supplied to the house. If liquefied gas is supplied to the cottage, it is strictly forbidden to install a column operating on natural gas. Such a mistake could cause an explosion or poisoning.

Place for speakers
If there is not enough space in the kitchen, then a compact water heater can be installed in the bathroom. Turbocharged speakers are not suitable for this purpose, otherwise there is a risk of carbon monoxide poisoning

Type of ignition. Old columns are turned on with a match, which sets the wick on fire. To date, these types of inclusion are used:

  • piezo ignition made using the button on the device panel;
  • electronic ignition - a spark from the battery occurs when the water is turned on;
  • from the hydro generator - during switching on, a turbine is activated, which forms an electric current. And he creates a spark.

This indicator is not the main one, but the comfort of using the column depends on it.

More detailed recommendations on the choice of a gas column are given in next article.

Water heater batteries
Many speakers come with no batteries. Find out in advance which batteries are right.Experts recommend using alkaline batteries, they are more powerful

Before installation of a geyser It is important that specialists evaluate the condition of the gas pipes, the pressure level and eliminate the malfunctions, if any. Such precautions are necessary to avoid gas leakage and poisoning of residents.

In addition, installation should be ordered only from professionals, because not only your health depends on this, but also the possibility of obtaining a guarantee for a gas appliance.

Conclusions and useful video on the topic

How to choose a geyser for a cottage or apartment? What should I focus on? The specialist gives detailed instructions:

To choose a reliable and high-quality geyser, make a personal list of important technical characteristics.

The fundamental indicators when choosing will be performance and power, and all others depend on the situation and user needs..

Thinking about purchasing a flow-through model of gas water heaters, but still doubt the safety of the model you like? Ask your questions under this article - our experts and other site visitors will dispel your doubts.

You have been using the gas water heater, which is present in the rating considered above, for several years and want to share your impressions? Write comments, add photos of your model, leave tips for the safe use of equipment.

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Visitors Comments
  1. A gas water heater is my nightmare ((It may be that modern models are safer to use, but those that I remember from the 90s do not cause anything but goosebumps on my back. I have never heard from such a column took off into the air of the house. If there is no central hot water supply, it is better to put a boiler and sleep peacefully. I am generally surprised by people who still choose gas water heaters.

    • Expert
      Vasily Borutsky
      Expert

      You, apparently, are just a very impressionable person and because of one or two cases that have sunk into your memory, you have a negative opinion. With proper use, there is no particular danger. And in the nineties, most gas water heaters worked fine and were completely safe, otherwise people would not have used them. Plus now there are practically no gas columns with manual ignition, now everything is with piezoelectric or electronic ignition, which is much safer. With regular maintenance and maintenance, there is no danger. In general, the risk is not greater than when using a gas stove in an apartment.

      • Expert
        Vasily Borutsky
        Expert

        I also remember such cases. The water was just unpredictable. just black liquid could go, the filters could not cope, the speakers were boiling, humming like planes and taps were spitting boiling water. 5 cases in my memory such. It also happened that a man went swimming and just shut off the water. The column was supposed to stand on the igniter, but for some reason this did not happen and, again, the water began to boil.

  2. Gas water heaters, like any device associated with the processing of gaseous fuels, require a bunch of permits from local authorities. And with us this often means the intrigues of the bureaucracy and the long paperwork.I would prefer an electric water heater, and it is even better to have a storage boiler instead of a flow one. Although, of course, everything has its pros and cons. It is necessary to select individually.

    • Expert
      Vasily Borutsky
      Expert

      Seq, many would prefer a boiler, it really is in many respects more convenient than a column. But if a column was originally installed in the apartment, then you can’t dismantle it yourself, but the design of all the papers is such a gimmick - it’s easier to put up with the column. Here for a new home - definitely an electric boiler. Electricity charges, although higher, but the ease of use clearly justifies this.

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