The availability of hot water in a country cottage, private house or apartment, regardless of the time of day and weather conditions, is one of the main indicators of comfort.
Among the variety of devices providing autonomous hot water supply, the most preferable is a flow-through gas water heater, capable of heating a large amount of water to the optimal temperature in a matter of seconds.
The device does not require special maintenance, is easy to install and operate , so it will be the right solution for your home.
Rating of the TOP 10 best instantaneous gas water heaters
| Place | Model | Price |
| The best models in terms of price and quality ratio | ||
| #1 | Zanussi GWH 12 Fonte | |
| #2 | Bosch WR 10-2P23 | |
| #3 | Zanussi GWH 10 Fonte Turbo | |
| #4 | Electrolux GWH 14 NanoPlus 2.0 | |
| #5 | BAXI SIG-2 11i | |
| The best pressure models for several water points | ||
| #1 | Electrolux GWH 11 PRO Inverter | |
| #2 | Gorenje GWH 10 NNBW | |
| Premium models with electronic control | ||
| #1 | Ariston NEXT EVO SFT 11 NG EXP | |
| #2 | Bosch WTD 15 AME | |
| #3 | Bosch WTD 24 AME | |
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The best manufacturers
Many well-known companies produce instantaneous gas water heaters, characterized by high technical characteristics and rich functionality.
According to buyers and experts, the best among them are:
- Zanussi. An Italian brand that specializes in the production of household appliances and electronics for a comfortable life.
- Bosch. A well-known German brand that produces high-quality equipment at affordable prices.
- Electrolux. A proven Swedish developer, one of the world's leading manufacturers of professional and household appliances.
- Gorenje. A Slovenian company whose equipment is famous for its reliability, high level of safety and long service life.
- Ariston. An Italian brand that has been producing high-quality home appliances for many years.
How to choose a instantaneous gas water heater for an apartment?
It is easy to find many interesting models of gas water heaters on the domestic market.
For your information! In order to choose the best device, you need to carefully study the basic technical parameters of devices developed by various companies.
When choosing equipment, experts recommend taking a closer look at indicators such as:
- thermal power. For modern models, this figure varies between 17-40 kW. To make the right choice, you should calculate in advance the required amount of hot water based on the total number of consumers;
- performance. The higher the performance of the device, the faster it can heat a large amount of water. It is important to remember that low-power models with low performance are much more economical;
- heat exchanger material. The heat exchanger can be made of copper, stainless steel or galvanized iron. Copper elements have high resistance to corrosion and a high heat transfer coefficient - they last a long time and provide fast heating;
- control type. There are only two options: mechanical or electronic. Many users note that designs with electronic control are more convenient, but the cost of such devices is usually slightly higher than simplified models;
- safety system. Ideally, the equipment should be equipped with flame, overheating and draft sensors. The device may also contain a pressure sensor - in case of depressurization of the water supply circuit, it will stop the gas supply;
- dimensions and weight of the structure. Gas instantaneous water heaters are distinguished by their compactness and low weight, however, it would not hurt to know these indicators. This will help you understand how best to install the device.
Types of geysers
Gas water heaters can be divided into two types.
- Gas instantaneous water heater. It is an ordinary column, known to us since the middle of the last century. Cold water passes through the heat exchanger, which is heated almost instantly using a burner. Exhaust gases are discharged to the street through the chimney. The device is very compact, consumes gas economically and can operate indefinitely for a long time.
- Storage gas heater. This is the same electric water heater, only running on gas. It is equipped with a tank into which water is collected and heated to the optimal temperature. Tank capacity can vary from 50 to 500 liters. Such a unit has impressive dimensions and is quite expensive, so it has not taken root in our small-sized apartments and is not popular even among owners of private houses.
Popular models
A review of popular devices will help you decide which model is worth purchasing for home use.
Note! All presented models are reliable and safe to use - all for the comfort and convenience of the buyer.
The best models in terms of price and quality ratio
Rating of the TOP 5 best models in terms of price, quality and reliability.
Zanussi GWH 12 Fonte
A nice device for which it is not a problem to quickly heat a large amount of water.
A non-volatile unit with a power-on indication, an excellent system of protection against switching on without water and overheating, as well as a highly resistant copper heat exchanger.
The equipment is equipped with a small display and a thermometer for user convenience.
There is a heating temperature limitation function.
Specifications:
- thermal power – 24 kW;
- productivity – 12 l/min;
- control type – mechanical;
- heat exchanger – copper;
- dimensions – 35x61x19 cm.
Advantages
- convenient wall mounting method;
- high-quality materials and reliable assembly;
- long warranty period;
- simple mechanical control;
- absolute safety of operation.
Flaws
- noisy operation of the device;
- poor equipment;
- long switching on from electric ignition.
Bosch WR 10-2P23
A worthy device with many useful options that performs its work with a minimum level of sound power.
A device with an open combustion chamber, equipped with a clear control panel, the advantage of which is the separate adjustment of maximum water flow and power.
The model is equipped with a gas burner made of stainless steel - if necessary, the user can easily set the desired temperature.
Specifications:
- thermal power – 17.4 kW;
- productivity – 10 l/min;
- control type – mechanical;
- heat exchanger – copper;
- dimensions – 31x58x22 cm.
Advantages
- reliable protection against overheating;
- elementary control system;
- sophisticated and laconic design;
- conveniently located piezo ignition button;
- excellent technical equipment.
Flaws
- The kit includes only one hose;
- the device requires maintenance;
- weak pressure.
Zanussi GWH 10 Fonte Turbo
Presentable equipment from the mid-price category, impressive in its functionality and high performance.
A unit with a preset antifreeze mode, a heating temperature limitation function and a basic mechanical control system.
The overheating protection function will help eliminate the risk of sudden breakdown - in case of danger, the system will automatically stop the operation of the equipment.
Specifications:
- thermal power – 20 kW;
- productivity – 10 l/min;
- control type – mechanical;
- heat exchanger – copper;
- dimensions – 33x55x19 cm.
Advantages
- minimum noise level;
- conciseness and elegance;
- absolute safety of operation;
- clear manual included;
- compact and ultra-ergonomic.
Flaws
- the need to carefully study the instructions;
- No batteries included;
- The snow-white body quickly becomes dirty.
Electrolux GWH 14 NanoPlus 2.0
An easy-to-use device at an affordable price that does not require professional maintenance.
Well-designed equipment with a multi-level European-style safety control system, which is one of the best-selling appliances on the domestic market.
The device has a gas control option, heating and power-on indication – everything for comfortable operation.
Specifications:
- thermal power – 28 kW;
- productivity – 14 l/min;
- control type – mechanical;
- heat exchanger – copper;
- dimensions – 40x65x19.6 cm.
Advantages
- presence of battery charge level indication;
- long warranty period;
- convenience and ease of use;
- extended equipment;
- pre-installed thermometer.
Flaws
- sometimes you can hear popping sounds when you turn it on;
- small switching threshold;
- If the water pressure is low, the device does not work well.
BAXI SIG-2 11i
A worthy model that has absolutely everything for comfortable use.
An impressive new product with a heating temperature limitation function, which will be the best solution for a small family.
A special feature of the device is the ability to carry out its work using liquefied gas.
Specifications:
- thermal power – 19 kW;
- productivity – 10.9 l/min;
- control type – mechanical;
- heat exchanger – copper;
- dimensions – 31.4×59.2×24.5 cm.
Advantages
- presence of display and thermometer;
- optimal power and performance indicators;
- compactness and light weight;
- simple control system;
- silent operation.
Flaws
- lack of anti-corrosion coating for the radiator;
- easily contaminated housing;
- the need to carefully study the instructions.
The best pressure models for several water points
Electrolux GWH 11 PRO Inverter
High-performance equipment aimed at long-term and uninterrupted operation.
A unit with the function of maintaining the outlet water temperature, an open combustion chamber and an intelligent control system.
The device is designed to connect to several parsing points, which will make the operating process more convenient.
Specifications:
- thermal power – 22 kW;
- productivity – 11 l/min;
- control type – electronic;
- heat exchanger – copper;
- dimensions – 33x55x19 cm.
Advantages
- self-modulation of flame;
- multi-level security system;
- acceptable design dimensions;
- quiet operation;
- absence of foreign odors.
Flaws
- The model is a little overpriced;
- questions about the configuration;
- easily soiled body.
Gorenje GWH 10 NNBW
A superbly designed device that will be a pleasure to work with.
Gas-type instantaneous water heater with anti-freeze mode, water filter element and built-in thermometer.
For user convenience, the manufacturer has added a small display to the device.
The design also includes a gas filter.
Specifications:
- thermal power – 20 kW;
- productivity – 10 l/min;
- control type – mechanical;
- heat exchanger – copper;
- dimensions – 32.7x59x18 cm.
Advantages
- convenient wall mounting method;
- no need for special maintenance;
- long warranty and operational period;
- wide functionality;
- filter element for water purification included.
Flaws
- noisy operation of the device;
- difficulty setting the temperature at low water pressure;
- there is a slight specific smell.
Premium models with electronic control
Ariston NEXT EVO SFT 11 NG EXP
A sophisticated device, the power of which will be quite enough to provide hot water in large volumes.
A powerful geyser, suitable for installation in large country houses and for installation in an apartment.
Among the special options in the device are automatic maintenance of water temperature, an innovative anti-freeze system and a self-diagnosis function.
Gas exhaust is turbocharged.
Specifications:
- thermal power – 19.59 kW;
- productivity – 11 l/min;
- control type – electronic;
- heat exchanger – copper;
- dimensions – 33x55x16.7 cm.
Advantages
- convenient setting of fixed water flow;
- built-in fan;
- wall mounting method;
- work with a minimum level of sound;
- self-diagnosis.
Flaws
- indication too bright;
- equipment;
- Installation may require professional assistance.
Bosch WTD 15 AME
A premium model with a laconic design and advanced functionality.
High-quality instantaneous water heater with gas control, overheating protection and automatic temperature control.
The equipment is equipped with a single-flow chimney and a closed combustion chamber. Installation of the structure is vertical.
Specifications:
- thermal power – 25.4 kW;
- productivity – 10 l/min;
- control type – electronic;
- heat exchanger – copper;
- Dimensions – 30×56.8×17 cm.
Advantages
- intuitive interface;
- presentable appearance;
- possibility of working on liquefied gas;
- high build quality;
- silent operation.
Flaws
- the cost of the device is higher than similar models;
- the need to periodically clean the housing from dirt;
- poorly thought out package.
Bosch WTD 24 AME
A highly efficient device that will be a great solution for your home.
A flow device with high thermal power, equipped with an automatic water flow regulator and a gas control function.
The equipment stands out with its laconic design, making it an excellent addition to the overall interior.
Specifications:
- thermal power – 42 kW;
- productivity – 24 l/min;
- control type – electronic;
- heat exchanger – copper;
- dimensions – 45.2×77.5×28.6 cm.
Advantages
- convenient pipe connection;
- sophisticated security system;
- long service life;
- clear manual included with the device;
- indication of switching on and heating.
Flaws
- impressive dimensions and weight of the device;
- overcharge;
- work with high noise levels.
About the negative aspects
An important disadvantage of forced-air instantaneous water heaters is their energy dependence. That is, after a power outage you will be left without hot water. You will need an electric generator or a reliable uninterruptible power supply. The remaining disadvantages of these units are not so critical:
- Buying a turbocharged gas water heater will cost twice as much as an atmospheric one. But if we compare the purchase and installation as a whole, then in the absence of a chimney duct, a coaxial pipe will cost much less than building a brick chimney or laying an insulated sandwich.
- Fans on models from some manufacturers are noticeably noisy.
- A modern forced-air heater is a complex device; its maintenance and cleaning is best left to trained service personnel. Without knowledge and skills, it is not recommended to delve inside the column yourself to find faults.
Gas dispenser display and touch control buttons
Note. In the event of a breakdown, the electronic display of the water heater will display an error code, which can be used to determine the malfunction without resorting to disassembly.
Since we are not comparing a gas water heater with an electric storage water heater, we do not mention obtaining permits from gas services to connect water heating equipment. The procedure for registration and connection to the main line is mandatory for any gas-using installations.
But problems with installing a coaxial pipe on the façade of an apartment building are quite real. Having made a hole without authorization (even in the place required by the standards, observing all the indentations), you may encounter claims from local services, motivated by damage to the facade, drilling of the supporting structure of the house and lack of design documentation.
Advice. First of all, before purchasing such a speaker, obtain the written consent of all neighbors, since troubles usually begin with their complaints about the “stench and suffocation from the pipe.”
You can learn more about water heaters with a closed combustion chamber by watching the video:
conclusions
When choosing an instantaneous gas water heater , you should follow the recommendations of professionals and remember that:
- first of all, you need to pay attention to the rated thermal power of the equipment and its performance , as well as find out information about the heat exchanger material;
- Experts cite the dimensions and weight of the structure, the level of noise emitted during operation and the method of temperature control as important selection criteria ;
- special attention should be paid to the security system - a modern device must be equipped with well-thought-out overheating protection, flame and low pressure sensors;
- You also need to take into account the number of water points - the more there are, the more convenient it will be for a large family to use the device;
- The best option for home use would be a device from a trusted brand with high power and performance.
What should you pay attention to when choosing a gas (flow-through) water heater? Reviews from specialists.
Pressure indicator It is worth paying attention to the minimum and maximum pressure. The switching on of the device depends on the first, and the maximum shutter speed of the heat exchanger depends on the second. Thermal power The higher the power, the more hot water is produced. Type of ignition Electric ignition, piezo ignition or hydrogenerator Methods of carbon monoxide removal Chimney and parapet (through a hole in the wall). Safety system Flame modulation; detectors for flow, draft, low pressure and water overheating. Heat exchanger quality Steel construction is the most reliable, but has a lot of weight. In a device made of highly purified copper, heat transfer is higher and, therefore, higher efficiency. Plain copper does not allow heating evenly and the container may burst over time. Installation type (floor, wall)
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