How to choose a geyser: selection guidelines and rating of the best models

Selection Tips

Let's summarize what points you should pay attention to when choosing a geyser:

The type of combustion chamber determines the design of the combustion products removal system, the ventilation system in the room and the cost of the device;
Power.To create a hot water supply in an average domestic city apartment, it is enough to purchase a column with a capacity of 17-20 kW;
Productivity is determined by the number of simultaneously involved water points. Focus on indicators of 10-12 l / min;
Ignition type. With good pressure in the water supply system, the best option would be electric ignition from a hydrogenerator

If there are problems with the pressure in the system, pay attention to models with piezo ignition;
Protection. Choose devices with a multi-level security system.

Watch a video on how to choose a geyser

No. 7. Electrolux GWH285NanoPro

Swedish geyser Electrolux GWH285NanoPro takes 7th place in the ranking. It has a power of 19.3 kW with a capacity of 11 l / min. Dimensions are 31x58x22 cm. Equipped with a mechanical control system.

Model advantages:

• speed and uniformity of heating;
• ability to work at pressure from 0.2 to 13 atm;
• the presence of electric ignition;
• affordable price;
• wall mounting;
• reliable protection and gas control, ensuring complete safety;
• increased service life.

Flaws:

• no display;
• the possibility of exceeding the temperature with a weak pressure of water;
• some repair problems due to the lack of service centers.

In general, experts and users note the high reliability of the equipment. As a budget option, the column is ideal for a small family.

Gas or electric water heater: which is better

Gas and electric water heaters have their own characteristics. Therefore, it is impossible to give an unambiguous answer which of the devices is better and which is worse. To compare these 2 devices, you need to consider their pros and cons.

Advantages of geysers:

• Economical (gas bill will be less than electricity bill)
• small size
• Fast water heating
• Possibility of obtaining an unlimited amount of hot water
• Ease of operation
• Long service life

Disadvantages of gas water heaters:

• Difficulties with installation
• The need for unquestioning adherence to safety rules
• The water pressure is distributed to all open taps in the apartment

Advantages of electric water heaters:

• Possibility of connection in houses where there is no gas supply system
• Ease of installation
• Safety in use
• Maximum water pressure in all open taps

Disadvantages of electric water heaters:

• Large consumption of electricity
• Short service life
• Large device size

When choosing one of the options, you should consider the possibility of connecting to an energy source and your own financial condition.

Buying a geyser is a complex undertaking that requires a thorough approach and taking into account all the little things. To make it easier for you to cope with this task, be sure to read our article. It will help you make the right choice and avoid buying a low-quality model. If this information has become useful for you, then do not forget to like and write a good comment.

Gorenje GWN 10NNBW

Gorenje GWN 10NNBW

The security system controls the degree of removal of combustion products and automatically turns off the gas if the flame goes out or the draft in the chimney becomes insufficient.

There is a temperature display and a water heating limiter.

Russian water heaters, which are no worse than their foreign counterparts. They will work stably for many years, and in the event of a breakdown, there will be no issue with spare parts and service.

This column shows the water temperature on the display, is not afraid of strong pressure and pressure drops. Electric ignition is carried out using batteries, and the thick copper heat exchanger deserves special praise.

The Neva 4511 also has disadvantages: it is noisy, without smooth modulation of the flame, and the batteries should be changed several times a year.

Price - from 9.5 thousand rubles.

How to determine power

First of all, you need to decide on the power or performance of the gas column. These are two related characteristics, simply reflecting different characteristics of the unit. Productivity is how many liters of water a column can heat per minute, and power is how much heat it can release. Some manufacturers indicate power, others indicate performance, so you need to understand exactly what you need.

Let's first figure out what kind of performance you need a geyser. It depends on the number of consumers that need to be provided with warm water. There are consumption rates for equipment of different types:

• kitchen sink, washbasin - 4 l/min;

• shower - 7-10 l / min.

If you have a kitchen sink, shower and washbasin connected to hot water so that all three points work simultaneously and the water temperature does not drop, you need a capacity of 4 + 4 + 10 = 18 l / min. This is a lot, the price tag will be solid. If you think about it, you will understand that all three devices almost never turn on at the same time. There are situations when the shower and one of the taps work together. To provide them with hot water, the productivity should be 14 l / min. This is a little more modest, but quite enough for a comfortable stay.Look for the found value in the technical specifications, it should not be less.

Now let's deal with power. Geysers can allocate from 6 kW to 40 kW of heat for heating water. Here the division is:

• a geyser with a power of up to 19 kW is suitable for heating water for one point of water intake;
• at two points, the power should be from 20 kW to 28 kW;
• three require more than 29 kW.

Now, you can definitely say which geyser is better in terms of power in relation to your needs.

Gas equipment must be safe for consumers

Electronic digital gas column display

As you know, gas - methane is explosive. Therefore, manufacturers of gas water heating devices supply equipment for sale that is practically safe for its consumers even in the most unusual situations that sometimes happen in our country.

The basic performance characteristics that gas water heaters of all manufacturers have, affecting the safety of its operation:

• if ventilation is disturbed (outflow of combustion products / no draft), the column will not turn on / turn off immediately;
• if the water supply is suddenly stopped, the column will automatically turn off (the gas supply will be stopped);
• if for any reason the flame on the burner is knocked down, the device will automatically stop the gas supply;
• reliable protection of the device from overheating. All geysers have a sensor that turns off the device at a critical water temperature;
• if for any reason the gas supply is interrupted, the water heater will turn off and will not supply gas to the device after the methane supply is resumed.

Additional options that modern geysers can be equipped with:

• flow sensor - when the hot water tap is opened, it turns on the gas column;
• electronic digital display showing hot water temperature;
• relief valve - protects the device from sudden high pressure (water hammer).

Electrolux GWH 10 High Performance

An improved model of a budget flow type speaker from Electrolux. This water heater has a capacity of 10 liters per minute. The column is equipped with a multi-level European protection complex: from turning on without water, from overheating, from working in the absence of traction. To avoid an accident, the flame detection function and the chimney draft sensor turn off the gas supply. The heat exchanger is made of environmentally friendly material: oxygen-free copper, lead-free. The data from the built-in thermometer is shown on the display. The column is ignited using electric ignition, which is powered by a battery with a charge indicator. The water heater is connected simply, has a convenient diameter for the chimney (110 mm).

Specifications:

• Type: flowing;
• Installation type: vertical wall;
• Productivity: 10 l/min;
• Power: 20 kW;
• Water heating: +60°С;
• Inlet pressure: from 0.15 to 8 atm.;
• Control type: mechanical;
• Dimensions: 330×590×190 mm;
• Weight: 8.7 kg.

Extra options:

• open type of combustion chamber;
• electric ignition;
• thrust sensor (battery operated);
• gas control;
• inclusion indication;
• protection against work in the absence of traction;
• bottom eyeliner.

Pros:

• low price;
• increased level of security;
• temperature accuracy;
• there is a display;
• fast ignition at any pressure of water;
• automation;
• heats water well
• consumes little gas;
• steel case;
• stainless steel burner;
• 2 year warranty;
• appearance.

Minuses:

• temperature adjustments go astray with an increase in water pressure;
• click operation (noise)
• tight flow and temperature regulators.

What characteristics to look for when buying a gas column?

Power

This parameter determines how much heat the geyser can give off and how much water it can heat. Devices with a power in the region of 17-20 kW are only suitable for an apartment with one tenant, because they can only heat water for one intake point: you can’t take a shower with such a column while someone is washing dishes in the kitchen. Speakers for 20-26 kW are already able to serve 2-3 consumers at the same time. At the same time, they are relatively inexpensive and are among the most popular options on the market. Finally, water heaters with a capacity of more than 26 kW are able to cover the needs of even a large apartment or house in hot water, so that all family members can enjoy comfort at the same time.

Performance

This parameter is a direct consequence of the previous one. The larger it is, the more hot water per minute the geyser can produce. Say, in order to calmly take a shower, you need about 10 liters of water per minute, and 5 liters per minute is enough for washing dishes.

Ignition type

The geyser can be ignited manually or automatically. The manual method, using a burning match, is the oldest and most inconvenient, especially if access to the burner is difficult. Ignition with a button, using a piezoelectric element, is much more practical, but you can’t call it particularly modern and comfortable either.

Electric ignition does not require a person to manually light the column each time.This type of device starts heating water automatically when you turn on the faucet and stops working when the water supply stops. Such geysers can work from the mains (which is not very convenient, because the heater will not work without electricity), from batteries (they are often used as a backup option for devices that are powered by the mains) and from a hydro generator (the most expensive, but also the most a convenient option is a small turbine, which itself generates the electricity needed by the column).

Combustion chamber type

The combustion chamber of a geyser can be open or closed. In the first case, air from the same room in which the heater is located is used to burn gas, and combustion products are emitted through the chimney. Placing such a device in a city apartment is quite problematic. Yes, and in a private house it is desirable to allocate a separate room to such a column.

The combustion chamber of a closed type receives the necessary air through a horizontal coaxial chimney and throws combustion products out into the street through it. You can equip such a system in an ordinary apartment, you just need to make a hole in the wall for the chimney. Columns with closed combustion chambers work more efficiently than analogues, but require connection to the mains for forced ventilation to work.

Type of heat exchanger

In the column heat exchanger, the water, in fact, is heated from the burner. This is an important structural element, the quality of which determines the reliability and durability of the entire water heater. The heat exchanger can be made of copper or stainless steel. Copper is more expensive, but conducts heat better and does not corrode. Heat exchangers made of it are thinner, smaller and lighter than those made of steel.Stainless steel is cheaper, stronger and, if properly maintained, can serve the owners for many years.

Burner type

You can regulate the flame in all burners, but not every column is able to do it on its own. If the pressure drops in the plumbing, which is not uncommon, especially in older houses, the flame will remain the same and the water from the tap will flow overheated until you correct the flame manually. Therefore, the best option to buy is a gas water heater with a modulating burner. With such an apparatus, it is enough to set the desired outlet water temperature once, and then the heater will regulate the fire itself, depending on the pressure and temperature of the inlet water.

Safety system

Geysers are equipped with a wide range of security systems. A modern water heater will not work without water in the system, with insufficient pressure or lack of draft in the chimney. It will not allow the heat exchanger to burn out, water to overheat, and carbon monoxide to go into the room. The more protection systems a column has, the better. You can't skimp on security.

Equipment selection criteria

And yet, which boiler to buy? To make the right choice, you need to familiarize yourself with the main characteristics that will help you purchase the best option.

First of all, you need to pay attention to the power of the device. The overall performance of the equipment largely depends on this characteristic, because it determines the amount of water that the column can heat in a certain time

According to this criterion, gas columns are divided into three types:

• Low power (17-19 kilowatts);
• Medium performance (22-24 kilowatts);
• With high power (28-31 kilowatts).

It is necessary to choose a specific column depending on your needs and the number of water intake points in the apartment. If you need the possibility of water intake from several points at the same time, then it is better to choose the option with medium or high power.

The second criterion for selection will be the type of ignition used. Once upon a time, ordinary matches or a lighter were used to ignite the column. If you meet such a “dinosaur” today, then it is better to bypass it and make a choice in favor of modern models. Now the automatic ignition system works in the column, the spark appears thanks to turbines or batteries, and the wick is ignited only when hot water is used. As a result, to start the system, you just need to open the tap, and this is not only convenient, but also safer.

There is another alternative option - piezo ignition, it is quite popular, but not very convenient. The fact is that ignition starts when you press a special button, and if the equipment is installed in a hard-to-reach place, then it is difficult to press the button. Also, in this method, the wick will burn even after ignition, thereby increasing gas consumption.

When choosing a geyser, you can not ignore the type of burner. So, a burner with a constant power needs manual adjustment. It is clear that such a solution is not entirely convenient, because the water pressure in the central system often changes. It is better to buy a burner device with modulating power, it will independently adjust to the power of the jet and ensure the normal temperature of the liquid.

Safety remains an important factor. High-quality equipment is equipped with a three-level protection system, and an automatic locking function when the flame goes out or when reverse thrust occurs.Also safe columns are equipped with safety hydraulic valves which help to avoid an overheat.

Another important factor will be the removal of combustion elements. Here the columns are divided into two types: turbocharged and chimney. In the first version, the device throws the combustion elements out into the street, and in the second - into the chimney system.

In addition, important criteria are the reputation of the manufacturer, and, of course, the cost of equipment, because no one wants to overpay

Therefore, it is important to buy affordable and high-quality equipment.

No. 8. Mora Vega 10

A fairly high 8th place in the TOP is given to the Mora Vega 10 model. It has a power of 17.2 kW with a capacity of 10 l / min. The column works well on domestic water lines. The design provides for a backdraft valve that eliminates the ingress of combustion products into the room. The device can operate on natural and liquefied bottled gas.

Main advantages:

• the presence of electric ignition;
• the possibility of mounting on the wall;
• the presence of a number of protective systems that ensure complete safety;
• adjustment of water temperature and combustion parameters;
• high maintainability;
• increased service life;
• the ability to operate the unit when the gas pressure drops to 0.2 atm.

The following shortcomings are noted:

• temperature rise within 10-15 C after launch;
• the possibility of condensation on the pipe with cold water in the warm season.

Users of the Mora Vega column, although they note the frequent failure of plastic parts, the ease of replacing them eliminates this feature.For Russian gas pipelines, the performance of the apparatus at low gas pressure is especially important.

4 Ariston S/SGA 100

The S/SGA 100 is a wall-mounted model with a large 95L water tank and is capable of providing multiple hot water outlets for a family of 2-4 people. It does not require a connection to the mains, it starts up with the help of piezo ignition, that is, by lightly pressing a special button. Despite the fact that the pilot burner maintains the flame constantly, the geyser consumes fuel carefully - up to 0.55 cubic meters. m./hour. Such profitability is explained by high efficiency and effective thermal insulation of the drive, made of high-density environmentally friendly polyurethane foam.

The weakest point of all boilers is the loss of tightness due to corrosion. To prevent its development, the inner surface of the tank is covered with heat-resistant enamel at the factory, additionally protecting it from corrosion with a magnesium anode. To increase the service life, it must be changed about once a year or two, depending on the hardness of the water. If you follow the operating rules, the device has been functioning flawlessly for many years - the model has existed since 2006, so there is a lot of evidence for this.

Installing a geyser in an apartment with your own hands: step by step instructions

The installation of gas equipment in an apartment building must be coordinated with the management company and the relevant services. This procedure was introduced to ensure the safety of residential housing construction.

Step 1. Choose a place to install equipment. It should be located in a place inaccessible to children, next to the water supply and gas network.

Drawing markings for mounting the boiler on the wall

Step 2We hang the water heater on the prepared mounts.

Fixing the water heater to the wall

Step 3. We arrange a hood for equipment from a corrugated sleeve. We bring it to the common house chimney.

Corrugated chimney

Step 4. We connect the equipment to networks using pipes.

We connect the column to the networks

Step 5. We check the operation of the system.

Testing column performance

What to consider when choosing a column

When buying equipment, you need to pay attention to what material it is made of. Do not buy products from thin tin

Their service life is limited to 3 years. The best speakers are made of copper. They have a high cost, which is offset by high efficiency and long service life.

The influence on the productivity of the equipment and the duration of its operation is exerted by the inner diameter of the tubes through which hot and cold water is supplied. Periodically they are cleaned of dirt and scale. Narrow tubes have to be cleaned much more often than wide ones.

Water heater with chimney

BaltGaz Comfort 15

Thermal power - 30 kW Heating volume - 15 l / min Input pressure - from 0.15 atm Control type - mechanical Ignition type - electric

A powerful and productive unit that copes well with the water supply of several points. The owners noted the reliability and excellent build quality, which became one of the reasons for the well-deserved status of "Customers' Choice". Among the distinctive "chips" of the model are water cooling of the burner chamber, the presence of a thermometer and automatic control of the water temperature. Three protection systems are implemented in the column at once - from overheating, from attenuation and from starting without water.The display shows the main operating parameters, including indication of start and water heating.

Gas column device

The general principle of operation and the device are characteristic of all models of gas-fired instantaneous water heaters. Propane enters the column through the nozzle. A valve is installed in the pipe that regulates the gas supply.

Water is brought to the adjacent branch pipe in the geyser. A control valve and a sensor are installed in the branch pipe. When the sensor is triggered, the gas enters the burner through the nozzle. The gas ignites in the burner.

In old Soviet models, the gas had to be ignited manually. In modern, three methods of igniting gas are used:

1. from a piezoelectric element.
2. From batteries.
3. from a hydro generator.

Piezo ignition means pressing the button every time you use the gas column (if you use gas sparingly). This is inconvenient, but more reliable than using automatic ignition, where the gas is ignited by a spark that is supplied by candles.

Image gallery

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Geysers are installed in the kitchens of country houses up to 150 m² and apartment buildings up to 5 floors high

The wall-mounted gas boiler heats only the water passing through the heat exchanger, without creating a supply of water prepared for consumption

Since flow heating equipment does not form a supply of hot water, the column takes up a minimum of space

Geysers are forbidden to be installed in residential premises and where there is no ventilation or it is impossible to carry out ventilation

To this day, most buyers prefer mechanically controlled speakers, as the simplest, most reliable and maintainable

In addition to control options, when choosing flow-type equipment, attention is paid to the volume of water being prepared, especially if the column has to work for two or more water points

A single-circuit flow heater is purchased if its function is exclusively to prepare hot water for delivery to mixers

Previously, geysers were produced only in a single-circuit version, now you can purchase a unit that can serve both the hot water system and the heating circuit

Geyser in the interior of the kitchen

Features of the wall-mounted boiler

Attractiveness of small dimensions

Choosing a location for location

Ease of water heater control

The volume of water ready for analysis

Single-circuit gas boiler

Double circuit flow heater

The membrane in the block rises under the pressure of the water and exerts pressure on the stem, which turns on the gas. If draft is present, then the gas burner turns on. Water passes through the tank and heats up.

This is interesting: Alternative energy sources - what technologies can be used, their advantages and disadvantages

4 Vaillant AtmoSTOR VGH 190

Vailant has long been considered a leader in the heating equipment market, and its AtmoSTOR series of gas water heaters is the best choice for organizing an economical hot water system in bunk apartments, apartment buildings, cafes, beauty salons, etc. Their main feature is the ability to use in combination with heating boilers, which can be switched off during the summer period without any damage to the hot water supply.The design is designed in such a way as to exclude inappropriate heat loss: an injection gas burner is built into it, the combustion chamber is surrounded by water, a 5-cm layer of polyurethane foam heat insulator is laid between the metal casing and the inner tank.

The degree of heating of the water mass is adjusted in steps, which allows you to accurately select a comfortable temperature. A separate room is not required to install the device, since it works quietly, and the protection functions - flame control, temperature limiter, gas outlet sensor - create all the conditions for safe operation. In general, the AtmoStor water heater proved to be the best, working well and for a long time even in non-standard cases, for example, with a short-term increase in pressure in the central or group water supply network up to 10 bar.

Geyser, which manufacturer you need to buy

Many consumers believe that they need to buy products from Bosch (Germany), Electrolux (Sweden) or a gas water heater from other foreign manufacturers. A similar statement is true for those potential buyers who live in settlements with normal pressure in the water supply system. There, the products of the above companies will work for a long time and with high quality. However, it should be noted that geysers of foreign manufacturers are several times more expensive than standard domestic devices.

But what about the residents of settlements in which water runs by "gravity"? In such cases, geysers of domestic manufacturers are suitable, which are designed for high-quality work from a pressure of 0.1 bar in the plumbing system.

For example, Neva 4510 Suite.This model is assembled both on the basis of imported components and on the basis of domestic elements, which affects the final price of the water heater.

Geyser Neva 4510

This model of a geyser can work both on gas - methane, and on the liquefied gas (propane - butane). This fact makes it possible for residents of remote settlements to enjoy the benefits of modern civilization (hot water without the need to heat the stove) as needed, without physical exertion.

Even the cheapest geyser significantly saves the family budget, enables its owners to use hot water not when it is supplied to the living quarters by utilities, but when there is an urgent need to buy / wash dishes.

The only obstacle for people who wish to install a gas water heater in an apartment building that is not equipped with them is the need to obtain permission from the regulatory state / municipal authorities for the installation of such equipment. Such a requirement is related to the safety of all residents of the house: reliable removal of combustion products, pressure in the main gas pipeline.

Advantages of gas water heaters

• Heating occurs immediately after the ignition of the burner, this ensures instant use of water, without waiting for it to heat up with a heating element.
• Small overall size. The large dimensions of the boiler do not allow it to be placed anywhere. In addition, the column will look neat and not clutter up the room.
• Economy of resource consumption. Gas units heat water as needed, so gas consumption is minimal.In addition, modern automatic gas water heaters have the ability to adjust the power.
• The presence of sensors eliminates the possibility of gas leakage and makes the devices completely safe.

Method of ignition and removal of combustion products

The old models of speakers disappeared from the sale, where to start it you had to aim a burning match at the wick. Today, only a few types of columns are sold according to the ignition method:

1. Piezo element with manual control. Not the most convenient, but reliable way to light the fuse. The only negative is that the wick will burn until it is forcibly extinguished, and this is an extra gas consumption.
2. Electric ignition. This is a fully automated system. The wick is lit when the faucet is opened. The source of electricity can be like ordinary batteries (and they sit down at the most inopportune moment), or the electrical network. The automatic gas column, the price of which is twice as high as that of devices with manual ignition, controls both the water supply and the gas flow according to the specified parameters. It will also turn off the device when the valve is closed.
3. Ignition from a hydraulic turbine. For its correct operation, it is necessary to have a water pressure in the system of 0.4-0.5 atm. The most advanced option and the most expensive. Electricity for ignition is generated from a hydrogenerator, and in the previous case, the batteries last for 10-11 months at most. Therefore, a column with a hydraulic turbine is the most reliable machine.

The removal of combustion products is carried out either using a natural chimney draft, or by a forced method, using an electric turbine. A turbocharged column is used in cases where it is not possible to use a functional chimney and you have to discharge gases directly to the street. As a rule, such speakers are the most expensive.The price of a gas water heater with a turbine can start from 400 euros. Choose the gas water heaters correctly, good luck with the repair!

Zuzako editorial recommendations for choosing gas water heaters

If you can’t independently determine which columns are better and which are worse, then use our advice. In addition, see photos of your favorite models, as well as their video review.

Column for the apartment

Most geysers are suitable for installation in an apartment. However, in order for this household appliance to work as efficiently as possible, several important points must be taken into account when choosing it.

Selection Tips:

For 1-2 people, a column with a minimum power will be enough. At the same time, large families should buy a device in which this indicator is at an average or high level.
Very often the kitchen or bathroom has a small area. In this case, you need to buy the most compact speakers that can fit in a cramped room.
In order not to grab your head with your hands when you see a gas bill, we recommend choosing the most economical models

They are much more expensive, but all the extra costs will pay off pretty quickly.
When living in an apartment building, it is especially important to use speakers equipped with various security systems. They will prevent an accident in the event of a sudden pressure surge, a sudden shutdown of water, or an erroneous user action.
The phrase “Adapted to the conditions of your country” must be written on the packaging or in the instructions

Otherwise, the model may be designed for the European plumbing and gas system.

Column for a large house

The process of choosing a column for a private house is more complicated than for an apartment

In this case, it is important to consider every little thing.This is the only way to buy a device that will work effectively for many years.

Selection Tips:

1. The purchased column must have a design that allows you to connect it to the chimney and ventilation.
2. If you intend to use a column to heat a small amount of water, then it is best to buy devices with low productivity. They are much cheaper, and in most other parameters they are not inferior to the best models.
3. In most cases, rooms in a private house are larger than in a standard city apartment. Therefore, you can buy speakers of any size.
4. Heat losses during water heating in a country house are greater than in a city apartment. Therefore, it is necessary that the purchased apparatus can heat the liquid to higher temperatures.

5 BaltGaz Comfort 15

Geysers "BaltGaz" of the "Comfort" line have replaced the well-known domestic water heaters "Neva Lux" and are produced in the Krasnodar Territory, and without the use of Chinese components. Recently, the series has been replenished with the most powerful model - the 15th with a power of 30 kW and a capacity of 15 l / min. Its functions and equipment indicate the modernity and comfort of the device. So, on the front panel there is an LCD display informing about the status of work, ignition is performed automatically, from two batteries, there is also a smooth hydraulic modulation of the flame with an error of ±2°.

The regulation of the intensity of heating and the speed of the water flow is carried out mechanically, which is still considered the most reliable. The power of the unit is sufficient for a one-time analysis of hot water at 2-3 points.Operation requires connection to the gas supply system in the house, however, with the installation of jets (optional), the water heater will be able to work on bottled gas. The company manufactures all components on its own or orders from Russian manufacturers, so it is confident in their quality and offers customers a guarantee for a record period of 5 years. Among the shortcomings that we learned about in the reviews: fragile knobs of regulators, too fine adjustment of the thermostat.

Electrolux NanoPro 285

Electrolux NanoPro 285

Reliable speaker of the latest generation. The design has a built-in electric ignition (via batteries), an automatic sensor for temperature and water changes. It makes very little noise, but you won’t be able to get a thin warm jet - the unit will turn on only with high pressure. Present: thrust sensor, hydraulic valve, ionization flame control - which means that you can light the flame quickly and easily.

When overheating, the gas supply is immediately stopped. The heat exchanger in the column is copper. Price from 15000 r.

The disadvantage is that it is designed for normal pressure. As soon as it is lowered, the protection is activated and the device does not work.

Selection criteria - summing up

Before choosing a gas water heater for an apartment or house, you need to make a list of basic parameters and technical indicators that the device must meet:

• The diameter of the gas pipe and the gas pressure in the liner;
• The intensity of hot water use, the number and location of water intake points;
• External dimensions and type of installation (floor wall);
• The minimum operating pressure of hot water at the inlet to the device;
• Gas burner power in kW and heat exchanger capacity in l/min;
• Device price;
• Appearance.

In one-room apartments with families of up to three people, a gas water heater with a capacity of 15-17 kW and a capacity of 10-11 l / min will be quite sufficient. In two and three-room apartments with more than 3 residents, the minimum required power of 23-24 kW guarantees a performance of 13-14 l / min. If there are several points of water intake in the DHW system, and the use of hot water has a significant intensity, then it is necessary to install gas water heaters with a capacity of at least 25-30 kW with a capacity of 15-17 l / min.

In the private sector, where significant fluctuations in cold water pressure are possible with a drop of up to 1 atmosphere, it is advisable to purchase storage devices that operate at a minimum pressure of 0.1 atm, then the user will have a supply of water in case of unforeseen shutdowns.