Rating of gas water heaters: 12 leading models + recommendations for future owners

Alexey Dedyulin
Checked by a specialist: Alexey Dedyulin
Author: Elena Pykhteeva
Last update: November 2024

If there is gas in the house, then the most economical way to organize hot water supply is to purchase a water heater that uses blue fuel. A wide range of such devices is available on the market, and it is sometimes difficult to buy a suitable model, agree?

To facilitate the task of choice, we have prepared a rating of gas water heaters with a description of the technical characteristics, advantages and disadvantages of units from different brands. In addition, we identified the main parameters that need to be assessed upon purchase, and also provided tips on the operation and maintenance of such plants.

TOP-12 geysers

A place
Product
Rating
Productivity, l / min
Type of ignition
Price
Water heaters up to 18 kW
#1
94
/ 100
6
from batteries
#2
92
/ 100
8
from batteries
#3
92
/ 100
10
hydraulic turbine
20 kW water heaters
#1
95
/ 100
10
from batteries
#2
95
/ 100
10
from batteries
#3
94
/ 100
10
from the network
Water heaters up to 21 to 24 kW
#2
93
/ 100
13
from batteries
#3
89
/ 100
11
from batteries
Water heaters with power from 26 kW
#1
94
/ 100
15
hydraulic turbine
#2
90
/ 100
13
from batteries

Water heaters up to 18 kW

#1

Zanussi GWH 6 Fonte

Compact and inexpensive water heater - a good solution for a single intake point

Expert rating:
94
/ 100

The instantaneous water heater heats the water quickly and silently, the productivity of the model is 6 liters per minute. Such development is enough to service one water intake point.

The Zanussi GWH 6 Fonte has a copper heat exchanger, an information display with temperature indication and a multi-stage security system. Management is carried out by two rotary switches.

Parameters of Zanussi GWH 6 Fonte:

  • productivity - 6 l / min;
  • power - 12 kW;
  • security system - gas control, protection against overheating, limiting the temperature of water heating;
  • ignition - electronic, from batteries;
  • dimensions - 30 * 48 * 14 cm;
  • weight - 4.4 kg.

The model is popular due to the good price-performance ratio. The assembly of the Zanussi GWH 6 Fonte is carried out in China.

The gas flow runs smoothly even with reduced water pressure, during the ignition there is no popping or hum. The unit is mainly bought for 1-2 people. At the same time, washing dishes in the kitchen and taking a shower in the bathroom will not work - there is not enough power for two points of water intake.

Advantages
  • Price Affordability
  • Copper heat exchanger
  • Temperature display
  • Overheat protection and gas control
  • Compact dimensions
disadvantages
  • Thin wall of the combustion chamber
  • No batteries included
  • No self-diagnosis
#2

Zerten s-16

Automated, budget speaker with full security system

Expert rating:
92
/ 100

Economical wall-mounted speaker with compact dimensions and lower communications connection. The Zerten S-16 device is made in steel color, there is an aggregate with similar characteristics in a white case - Zerten W-16.

Parameters of Zerten S-16:

  • productivity - 8 l / min;
  • power - 16 kW;
  • safety system - protection against overheating / switching on without water, gas control, heating temperature limitation;
  • ignition - electronic, from batteries;
  • weight - 6.3 kg;
  • sizes - 52 * 32 * 15 cm.

Buyers note the rapid heating of the water and the ability to turn on even with a small pressure. Another advantage of this column is its relatively low price. The cost of the Chinese-made unit is about 6,500 rubles.

Of the minuses, the fragility of the thin metal from which the body, the heat exchanger and the burner are made is noted.

The compact model S-16 consumes a bit of gas, but also can not boast of high performance. It will be appropriate in the country, in a small house or apartment, where it is not used very often.

Advantages
  • Low cost
  • Work under reduced pressure - from 0.2 MPa
  • High efficiency - 90%
  • LCD display with temperature indication
  • Reliable security system
disadvantages
  • No self-diagnosis
  • No batteries included
  • Build quality complaints
#3

Bosch WRD 10-2G23

Non-volatile instantaneous water heater with HydroPower ignition system

Expert rating:
92
/ 100

Intelligent flow-through equipment heats 10 liters of water per minute. The unit is equipped with a thermometer for monitoring, a display on which the operating characteristics are displayed, a device that prevents overheating.

A feature of the Bosch 10-2G Series models is that they are equipped with a hydrogen generator, which produces electricity when water is supplied. This electric charge provides ignition of the burner.

Parameters of Bosch WRD 10-2G23:

  • productivity - 10 l / min;
  • power - 17.4 kW;
  • security system - protection against overheating, gas control, limiting the temperature of heating, self-diagnosis;
  • ignition - from a hydraulic turbine;
  • weight - 11.5 kg;
  • sizes - 31 * 58 * 22 cm.

Owners evaluate this device as extremely reliable, ten years of excellent operation for it is not the limit. Management is simple, mechanical, detailed instructions help to understand.

Heating 10 liters per minute is enough for a small family. The column is capable of serving two water points at the same time.

Of the minuses, users note the sensitivity of the device to pressure. At low water pressure, the column does not turn on. Such complaints are usually expressed by residents of the upper floors.

Advantages
  • Maintenance of two water intake points
  • Copper heat exchanger
  • Silent work
  • HydroPower Ignition Technology
  • LED display and auto diagnostics
disadvantages
  • High price
  • Demanding for water and gas pressure

20 kW water heaters

#1

Gorenje GWH 10 NNBW

A popular unit is the balance of price and performance

Expert rating:
95
/ 100

A high-quality product of a famous brand. GWH 10 NNBW is a wall-mounted speaker equipped with all the necessary control and safety modules.

The model is in demand among buyers. The unit attracts attention with its performance, laconic design and ease of operation. Ignition is automatic.

Parameters of GWH 10 NNBW:

  • productivity - 10 l / min;
  • power - 20 kW;
  • security system - protection against overheating, gas control, limiting the heating temperature, anti-freeze mode;
  • ignition - electronic, from batteries;
  • weight - 9.6 kg;
  • sizes - 33 * 59 * 18 cm.

The owners of this unit are grateful to the manufacturer for a convenient control system and the ability of the device to turn on even at low pressure. Water heats up smoothly and quickly, there is no danger of scalding with boiling water. Some complain about some noise, it appears if the height of the flame increases.

The model of a wall-mounted water heater is suitable for the needs of a family of 3 people. If the pressure and temperature are adjusted correctly, gas consumption will be moderate. Estimated battery replacement intervals are every 2-3 months.

Advantages
  • Copper heat exchanger
  • Included water filter
  • Display and temperature controller
  • Smooth heating of water
  • Good value for money
disadvantages
  • Complaints about noisy work
  • Few service centers
#2

Zerten s-20

Instantaneous gas water heater with copper heat exchanger

Expert rating:
95
/ 100

Another column from a well-known brand of flow-through HVAC equipment with standard performance. The power of the unit is indicated in the name - Zerten S-20.

The geyser is intended for servicing houses, cottages and apartments equipped with a chimney. The combustion chamber is open type.

Parameters of Zerten S-20:

  • productivity - 10 l / min;
  • power - 20 kW;
  • security system - protection against overheating, gas control, limiting the heating temperature, warning of switching on without water;
  • ignition - from batteries;
  • weight - 7.4 kg;
  • sizes - 34 * 59 * 14 cm.

The device is mounted on the wall vertically, communications are connected at the bottom.

Customers like the level of automation of this model, simple mechanical control and the absence of dependence on the electrical connection. The ability of the device to function at low pressure in the water supply network is separately noted.

Such a device is suitable for servicing a small house where it is necessary to heat water only for two objects: a sink and a shower.

Advantages
  • Reduced pressure operation
  • Integrated Security System
  • Copper heat exchanger
  • High efficiency - over 90%
disadvantages
  • No fault self-diagnosis
  • No batteries included
#3

Zanussi GWH 10 Fonte Turbo

Hot Sales - Geyser with Closed Combustion Chamber

Expert rating:
94
/ 100

The model with a closed combustion chamber prevents the smell of gas in the apartment or house. The air is taken from the street, so the oxygen level in the room does not fall. A compact fan is provided for air supply.

The GWH 10 Fonte Turbo boiler requires an electrical connection. To ensure uninterrupted power supply and surge protection, it is advisable to additionally connect the UPS.

Parameters of the Zanussi GWH 10 Fonte Turbo:

  • productivity - 10 l / min;
  • power - 20 kW;
  • security system - protection against overheating / overpressure / switching on without water, anti-freeze mode, gas control, heating temperature limitation;
  • ignition - from the network;
  • weight - 10.4 kg;
  • sizes - 33 * 55 * 19 cm.

Buyers note the good security system of this column and economical gas consumption. Not everyone quickly understands the settings system, for which two mechanical handles are designed. It takes about 10 seconds to warm up the water to the desired temperature.

Due to the lack of automatic flame modulation, it is necessary to manually set the settings each time the pressure in the system changes.

The operation of the GWH 10 Fonte Turbo cannot be called silent due to the fan running. However, sound is heard only near the speaker.

Advantages
  • Closed combustion chamber
  • Copper heat exchanger
  • Multi-level security system
  • Work at a low pressure of water
  • Economical gas consumption
disadvantages
  • No automatic flame modulation
  • Electricity addiction
  • Complaints about noisy fan operation

Water heaters up to 21 to 24 kW

#1

Electrolux GWH 12 NanoPlus 2.0

Ease of use and advanced security technology

Expert rating:
95
/ 100

The favorite of the public is a flowing water heater with a capacity of 12 l / min. This column covers the hot water needs of a family of 3 people. The unit with an open combustion chamber is equipped with a copper heat exchanger and a steel burner.

Ignition of the burner electronic, the heating time of the water is about 10 seconds. The control is carried out by two rotary levers - control of the flame intensity and adjustment of the heating temperature. On the front panel there is a display for tracking the current temperature and battery charge.

Parameters of GWH 12 NanoPlus 2.0:

  • productivity - 12 l / min;
  • power - 24 kW;
  • security system - gas control, protection against overheating / overpressure / switching on without water, limiting the temperature of heating water;
  • ignition - electronic, from batteries;
  • dimensions - 35 * 61 * 18 cm;
  • weight - 8.2 kg.

Most buyers praised the practicality and usability of the speaker. The unit is included in the work and with a low pressure of water.

A good ratio of cost, performance and functionality provided the GWH 12 NanoPlus 2.0 first place in our rating.

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

Bosch WR 13-2B23

Good performance, quiet operation and safe operation

Expert rating:
93
/ 100

The model is capable of heating 13 liters of water in a minute - this performance is suitable for servicing two drainage points. A copper heat exchanger is installed in the WR 13-2B23 unit and a multi-level security system is implemented.

There is no display in the model, the light indicator shows the activation of gas supply. Operation control is standard for gas columns of such a price segment - two rotary levers are provided. The temperature range of the supplied water is 35 ... 60 ° C.

Parameters of GWH 12 NanoPlus 2.0:

  • productivity - 13 l / min;
  • power - 22.6 kW;
  • security system - gas control, limiting the temperature of water heating, protection against overheating;
  • ignition - electronic, from batteries;
  • dimensions - 35 * 61 * 18 cm;
  • weight - 8.2 kg.

Gas ducting is often chosen because of a well-known brand, good performance and an integrated security system. The model has a sensor for the presence of draft Anti Overflow - the system will automatically turn off the column when there is insufficient traction, which will prevent carbon monoxide from entering the room.

Despite a number of advantages, during operation, users revealed weaknesses. Some note that the column is demanding for pressure in the water supply system, as well as cooling the water while opening two taps. Branded batteries last for six months of operation.

Advantages
  • Good performance - 13 l / min
  • Copper heat exchanger
  • Silent work
  • Multi-level security system
  • Easy installation
disadvantages
  • No display
  • Sensitivity to water pressure
  • No self-diagnosis
#3

BaltGaz Comfort 11

Inexpensive gas water heater with hydraulic modulation system

Expert rating:
89
/ 100

The budget version of the column with a capacity of 21 kW from a Russian manufacturer. An open type water heater with a copper heat exchanger is equipped with a digital display - the temperature of the water and the battery charge are displayed on the screen. The model is available in different colors.

The column is designed for connection to 1-2 drainage points, the efficiency of the unit is 87%. A feature of the device is the modulation of the burner flame to maintain a stable water temperature, regardless of its pressure.

Comfort 11 options:

  • productivity - 11 l / min;
  • power - 21 kW;
  • security system - gas control, protection against overheating and turning on without water, limiting the heating temperature;
  • dimensions - 29 * 57 * 22 cm;
  • weight - 10 kg.

Despite the stated characteristics, the BaltGaz Comfort 11 column received many conflicting reviews. The main complaints are related to the quality of components - thin metal of the casing and the heat exchanger, plastic nuts for water inlet / outlet, the probability of breakdown of the electronic unit.

Many buyers complain about the inefficiency of the modulation system - instead of the promised ± 2 ° C, temperature fluctuations reach ± ​​10 ° C.

Advantages
  • Low cost
  • Hydraulic modulation system
  • Indication of temperature and charge level
  • Work at a low pressure of water
  • 5 year warranty
disadvantages
  • Complaints about poor quality components
  • Difficult to adjust the water temperature

Water heaters with power from 26 kW

#1

Bosch WRD 15-2G

High-performance speaker with automatic temperature control

Expert rating:
94
/ 100

The technological unit from Bosch stands out among its competitors for its high performance and the presence of a power modulation system that automatically “evens out” the water temperature.

In addition, the WRD 15-2G column provides ignition from the built-in hydrogenerator - Hydropower technology provides non-volatility and eliminates the need to buy batteries.

Parameters of WRD 15-2G:

  • productivity - 15 l / min;
  • power - 26.2 kW;
  • security system - gas control, protection against overheating and turning on without water, limiting the heating temperature, flue gas control sensor, ionization flame control;
  • dimensions - 43 * 66 * 22 cm;
  • weight - 16 kg.

You will have to pay about 18-20 thousand rubles for such an aggregate. Most buyers were satisfied with the purchase - the column effectively serves two points of water intake, the modulation system works correctly.

There is a risk that after 2-3 years of operation the heat exchanger may leak, as evidenced by a few complaints from users.

Advantages
  • Automatic temperature control
  • Hydrogen Generator Ignition
  • Self-diagnosis and complete security system
  • Temperature and battery indication
  • Intuitive controls
disadvantages
  • High price
  • The inconvenience of connecting pipes
  • The sound of a running turbine is heard
  • Demand for water pressure
#2

BaltGaz Comfort 13

Low cost solution - non-volatile gas flow with copper heat exchanger

Expert rating:
90
/ 100

The model of the Russian assembly, according to the manufacturer, delivers up to 13 liters of heated water per minute. The instantaneous water heater is equipped with an automatic ignition system, hydraulic modulation and an environmentally friendly copper heat exchanger.

The speaker design is concise, there is an LED display and two control levers. Comfort 13 is available in a variety of colors. The customer has 5 options for cladding: traditional white, black marble, stainless steel, rose gold and white aluminum.

Comfort 13 options:

  • productivity - 13 l / min;
  • power - 26 kW;
  • security system - gas control, protection against overheating and turning on without water, limiting the heating temperature;
  • dimensions - 35 * 65 * 26 cm;
  • weight - 12 kg.

Users are mixed in reviews. Many buyers consider the modulation system a marketing ploy and note significant temperature jumps at different points in water consumption. There are few complaints about the rapid breakdown of the water unit, display malfunctions and the difficulty of setting the temperature.

Advantages
  • Low cost
  • Temperature and battery indication
  • Copper heat exchanger
  • 5 year warranty
  • Parts availability and maintainability
disadvantages
  • Temperature jumps
  • Complaints about poor build quality
#3

Electrolux GWH 14 NanoPlus 2.0

Instantaneous gas water heater with multi-level security system

Expert rating:
90
/ 100

Geyser with an open combustion chamber, electronic ignition from the battery and an informative digital display. Models of the NanoPlus series meet safety requirements - there is a multi-level control system.

The heat exchanger is made of copper, and the burner is stainless steel. Two mechanical regulators are provided for control.

Parameters of GWH 14 NanoPlus 2.0:

  • productivity - 14 l / min;
  • power - 28 kW;
  • security system - gas control, protection against overheating / overpressure / switching on without water, limiting the temperature of heating water;
  • dimensions - 40 * 65 * 20 cm;
  • weight - 2 kg.

Users note the speed of heating water and the simplicity of temperature control. Many people like the speaker design, bright display and small dimensions of the “box”. However, there are also disadvantages to consider when planning your purchase of the GWH 14 NanoPlus 2.0.

Advantages
  • Multi-level security system
  • Temperature and battery indication
  • Oxygen-free copper heat exchanger
  • Automatic electronic ignition
disadvantages
  • Demand for water pressure
  • Periodic popping when turned on
  • Few service centers
  • No fault self-diagnosis

Unit recommendations

Choosing a column, it is necessary to take into account many parameters, we denote the main ones.

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

Some owners are faced with 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.

Gas water heater in the interior
The compact wall model of a geyser is the most popular version of such a heater. It is small in size and fits well in almost any interior

This is due to poor performance. For the described situation, a device issuing about 10 l / min is suitable. Most geysers from the presented reliability and quality rating for productivity correspond to this level.

Gas water heater in the bathroom
The small size makes it easy to find the right 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-type camera are usually several times more expensive than conventional devices with an open camera. The latter can be installed only in houses where a chimney is already provided for this.

In closed chambers, forced exhaust gas removal is performed thanks to the integrated turbine. Spending money on such an expensive purchase makes sense only when nothing else is left, because it is most convenient to use gas to heat water.

Coaxial Chimney
The compact coaxial chimney is very easy to install; it helps to solve the problem of removal of combustion products and oxygen supply to the boiler of an independent heating system and hot water treatment

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

But devices with this feature are quite expensive. Those with a limited budget will have to choose from models with stepless or step adjustment.

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

Geyser connection point
The connection of 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

Instrument dimensions and installation method. The most popular models are usually small, wall-mounted and vertical.If a speaker location has already been selected, you should familiarize yourself with the manufacturer's requirements. Perhaps the device can not be installed close to the cabinet, wall and other objects, you need to provide a certain clearance.

Geyser display
The presence of a display on which the state of the column and the temperature of the water flow are reflected is very desirable, but not necessary for the normal operation of the device

Additional factors. It is necessary to remember such moments as the compatibility of the selected model with 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.

Additional recommendations for choosing a gas column are described in this article.

Efficient use of the appliance

When operating gas units, two serious hazards must be taken into account, such as the likelihood of poisoning by gas fuel processing products and an explosion. That is why you should never neglect the scrupulous study of the operating instructions and the fulfillment of all its requirements.

Gas water heater control panel
Modern speakers with a mechanical control system are usually very simple to operate, if the settings are set correctly, the device will deliver a stable flow of enough hot water

To ensure sufficient traction for the normal functioning of the column, you should take care of a constant supply of air into the room equipped with the device. Plastic windows reliably block the air flow paths.

Repair of gas wall water heater
The installation and connection of the column, its maintenance and necessary repair procedures must be carried out by a gas industry employee; acting on these issues can seriously harm

To make the column work properly, it makes sense to arrange a suitable option supply ventilation. Before turning on the column, a traction check is mandatory.

It is best to use tissue paper for this, rather than matches or a lighter. If gas has accumulated inside the case due to a breakdown, it may explode.

Geyser burner
The presence of sufficient draft can be judged by the flame on the igniter: if the tongue deviates towards the chimney, then there is draft. But it’s safer to use thin paper instead of fire.

It is important to understand that unauthorized gas column installation fraught not only with fines, but also with much more serious consequences.

You cannot repair a broken column yourself or make your own design changes. This can lead to a potential gas leak and subsequent explosion.

The heat exchanger becomes clogged with scale over time and has to be periodically clean.

Dirty gas boiler
Improper use of the geyser can lead to its pollution. To restore the unit to normal operation, clean it.

To make this process as slow as possible, you need to set the heating temperature correctly. The higher it is, the more limescale. The maximum recommended rate is 55 ° C.

Clogged water pipe
If the column does not light up due to low water pressure, it may be time to clean or replace the water pipes. It’s best to take care of this before purchasing and installing the appliance.

Some speakers do not turn on immediately because there is no water inside. First, open the water tap to fill the circuit, and then light the gas.

It does not hurt to first drain a certain amount of water and remove the accumulated air.

Useful video on the topic

How reliable and safe modern speakers are:

Tips for choosing the right model:

The range of speakers from different manufacturers is quite wide. You can always choose a productive unit for the right price. Subject to the rules established by the manufacturer, the heater will work for more than ten years without breakdowns or problems.

Share your personal experience in choosing and operating a gas water heater.You can ask questions, leave comments and add photos in the form below.

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Visitors Comments
  1. Andrew

    Geysers are very convenient, yet their operation is much more economical than using electric boilers. We have Mora Vega 16E for about a year, which is generally not bad, but, of course, not without its drawbacks. For example, in the evening, when the pressure of water is not as strong as during the day, it may not turn on. Perhaps the matter is in the old communications. I had to tinker with the connection because of the inconvenient, ill-conceived design. Well, and the most important thing for me, what the manufacturer was silent about, is that you can’t mix cold water when hot water is working in order to make the right temperature.

    • Something very many negative reviews on the Internet on your Mora Vega. They complain about low reliability - two or three years, and problems begin with either a heat exchanger or something else. And it's not cheap.

  2. We have a Vaillant geyser in our apartment. It has been installed for a long time, since the house is old and it does not have hot water. Now we want to connect a boiler, because it will be cheaper for money. We have an electric ignition in the column, it turns on in 2 movements. Only in order to save it, you have to turn it off, and turn it on again if necessary. There is a regulator of water temperature, but poor pressure in the tap is a significant minus.

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