Geyser or boiler - which is better to choose for hot water?

Boilers are more practical. The stream runs hot under any pressure. Even if I turned it on for a second to rinse my hands. They are not explosive and not whimsical in everyday life.

The speakers use gas more economically. They help out if the apartment has old wiring, which often cannot withstand overloads and knocks out plugs on the meters. And, of course, they heat water in unlimited quantities.

However, the gas water heater and the boiler have nuances that directly affect the ease of use and the cost of utility bills. The features will be discussed in this material. Let's put everything into pieces.

Read: How to choose an economical boiler: 3 important parameters

Gas water heaters and their features

Today you won’t surprise anyone with a gas water heater.
This is quite popular equipment that is used everywhere. If in the past it was very large and inconspicuous, today these devices are distinguished by relatively small dimensions, as well as a stylish design. However, the principle of operation of geysers remains the same as before. What is it?

Cold water entering the heat exchanger is heated using natural gas. The main advantage of this heating technology is that even a very large volume of water can be heated extremely quickly.

To read more about the operating principle and design of the column, please follow this link.


Many people cannot imagine even one day of their life without hot water. In order to protect yourself and your loved ones once and for all, it is worth installing a water heater

Another undoubted advantage that makes geysers an ideal option for most buyers is the low price of natural gas. The high performance of geysers has allowed them to conquer a large part of the market in recent years.

You can find gas water heaters of both domestic and foreign production on open sale, but those who would like to purchase 100% high-quality equipment should give preference to products from well-known world brands. Among them we can note equipment from Electrolux, Neva, Oasis, Bosch and Ariston, although many other manufacturers have also proven themselves well. We talked in more detail about the best geysers in the following rating.

If you live in an old house where there is always no hot water, then a gas water heater is your best friend. Just choose the model you like and arrange installation with a specialist

The models of speakers that can be found on sale differ in the ignition method. Ignition can be either automatic or semi-automatic. With automatic ignition, the device begins to work immediately when the mixer tap is opened. To start equipment with semi-automatic ignition, you will have to use manual ignition of the wick.

Modern geysers are equipped with both convenient and quite informative displays and a variety of indicators. This additional equipment greatly simplifies the process of controlling a gas water heater.

It is worth noting that the columns, like boilers, can be atmospheric (chimney) and turbocharged (flueless). If the first type of equipment uses natural air flow and its removal into the chimney pipe, then in the second type these processes are forced. The turbine is a built-in fan that is used to quickly pump air into the combustion chamber. A turbine is also needed to remove combustion products from the chamber.

Important parameters of a capacitive gas water heater - what to pay attention to

The first important point of our small study has been completed. But, asking the question “How to choose a gas water heater?”, one cannot ignore such a section as technical and operational characteristics. Let's take a closer look at the most important parameters:

Power and performance

For almost any household appliance, the most important indicator that reveals its full potential is the rated power. As in the case of an electric water heater, the hero of our review has a value measured in kilowatts.

In practice, another important characteristic—performance—depends on power. To more clearly confirm these words, we suggest that you familiarize yourself with the table of the dependence of two characteristics.

Power value, kWMaximum volume of water heated to 30 ºС, l./min.Maximum volume of water heated to 50 ºС, l./min.
20136
26168
30189

Performance also has its own important parameter, and its name is storage capacity. Having studied the instructions, you can notice a direct relationship between how many liters the heater can hold and how long it will take for the water to be heated to a certain temperature.

Materials used + type of internal coating of the tank

Today, there are two most common materials for the manufacture of the internal tank of the device - ordinary steel coated with a layer of enamel, or “stainless steel”. The first option is cheaper and more durable, but is subject to rapid destruction due to corrosion. The second variation has good durability, but is more damaged by pressure drops in the system, and is also high in cost.

For the internal coating of the container, either the previously mentioned enamel is used (models with glass porcelain are also found), or spraying of various corrosion-resistant metals (titanium, molybdenum). Each version has its own useful life, and depends primarily on the intensity of use and heating temperature.

Combustion chamber type

As we said earlier, there are units with an open and closed combustion chamber, and each has its own strengths and weaknesses. The wrong choice of device will entail unnecessary costs, and may also completely fail to meet your goals and expectations. If you are not completely sure, it is better to give preference to a classic flow-through geyser - the risk will be minimal.

Ignition starting method

If you only have a modest amount of money or you want to completely control the operation of the water heater, it is better to take a model in which the gas is ignited with matches, a lighter or a piezoelectric element. If you want to save time and energy costs, then you should take a closer look at models with automatic start/shutdown.

Presence of sacrificial anode

To extend the service life of the device and improve its corrosion resistance, many manufacturers equip their “brainchildren” with a zinc or magnesium anode. During use, this element gradually “evaporates”, dissolving and preventing damage to the integrity of the tank. It is better to check in advance with the seller or on the manufacturer’s website about the presence of such “bells and whistles”.

What is their difference

The main difference between these devices is the energy they use. The geyser is powered by gas, which is extracted by connecting to a central gas pipeline. Such a device was invented a long time ago, and during its existence it has evolved from a bulky unit that requires a lot of space into small compact devices.

An electric boiler has the appearance of a capacious tank with a tubular electric heater inside and a water heating control system outside. There are two types of such devices:

  • Flow-through is a small device that connects to the water supply pipe and heats the water when the tap is turned on.
  • Storage - a tank of different sizes that collects and stores water; heats the water when the tank is turned on.

Unlike a gas water heater, a boiler can work with large volumes of water, which is why various enterprises often choose it.

TOP 3 wall-mounted condensing gas boilers

Condensing gas boilers are an equally interesting type, which are characterized by lower gas consumption (although this decrease is not very noticeable initially).

The three best models will be discussed below.

Vaillant ecoTEC plus VUW INT IV 346/5-5 30 kW

Vaillant ecoTEC plus VUW INT IV 346/5-5 30 kW
Main parameters:

  • type: condensing;
  • number of circuits: two;
  • Max. thermal power: 30 kW;
  • installation: on the wall;
  • mains voltage: single-phase;
  • control: electronic;
  • Features: built-in circulation pump and expansion tank.

The rating of condensing boilers opens with a model from Vaillant, the thermal power of which is sufficient to heat private houses and apartments. This can be explained by the high heating area - 240 sq. meters.

Can be connected to a standard outlet and consumes no more than 80 W. Looks cheaper than paying for heating.

We also cannot fail to mention a high-quality approach to security. For example, turning off the unit when the gas pressure decreases, the flame goes out, frozen water, impaired circulation, or if there is no draft.

The turbocharged combustion chamber in the design of this boiler eliminates the occurrence of strange odors. In addition, the camera will protect against accidental fire.

pros

  • “summer mode”, the operation of which can be configured;
  • volumetric expansion tank of ten liters;
  • a design that is pleasing to the eye and matches the interior of the bathroom or kitchen;
  • compact dimensions, which allows you to easily place everything.

Minuses

  • a fairly high price that not everyone can bear;
  • "warm floor" system is not supported.

Vaillant ecoTEC plus VUW INT IV 346/5-5 30 kW

Protherm Lynx condensing 25/30 MKV 25 kW


Protherm Lynx condensing 25/30 MKV 25 kW
Main parameters:

  • type: condensing;
  • number of circuits: two;
  • Max. thermal power: 25 kW;
  • installation: on the wall;
  • mains voltage: single-phase;
  • control: electronic;
  • Features: built-in circulation pump and expansion tank.

In second place is the domestic “Lynx” with a turbocharged combustion chamber. With such a boiler you can easily heat not only residential, but also non-residential premises with an area of ​​up to 212 square meters. meters.

There is a justification for the good results - the system of this boiler uses two heat exchangers at once. The first is made of silicon-aluminum alloy, resistant to hard water. The secondary one is made of steel in plate form and with it the quality of heating increases.

The use of a coaxial flue gas system will allow you not to connect to the chimney when you do not have one. With this system, such a boiler can be installed almost anywhere.

A small LCD display located at the bottom of the device shows all the necessary information when interacting with the boiler.

pros

  • can start working immediately after switching on due to the “hot start” function;
  • built-in circulation pump makes work easier;
  • simple but nice design that everyone will like;
  • Efficiency is more than one hundred percent (to be more precise, 104%).

Minuses

  • difficult to install;
  • quite high price.

Protherm Lynx condensing 25/30 MKV 25 kW

Video – Review of Protherm Lynx Condens 25 kW

BAXI Duo-tec Compact 28 28 kW


BAXI Duo-tec Compact 28 28 kW
Main parameters:

  • type: condensing;
  • number of circuits: two;
  • Max. thermal power: 28 kW;
  • installation: on the wall;
  • mains voltage: single-phase;
  • control: electronic;
  • Features: built-in circulation pump and expansion tank.

The gas boiler from BAXI takes first place in this rating. With its thermal power, you can heat an apartment or house and at the same time do it all with a fairly economical approach.

It is clear that the condensing type of boiler uses absolutely all the fuel, even its residues, which is why this model has a fairly high efficiency rate.

With a coaxial flue gas system, this boiler does not need to be connected to a chimney that does not exist or is difficult to install.

This model has a really simple and intuitive control system, which, in combination with the LED screen, allows you to make precise changes regarding the heating temperature. Also through this system you can configure the operation of the gas burner.

pros

  • built-in temperature sensor allows you to determine the temperature inside the boiler;
  • support for the “warm floors” mode, with which you can adjust their temperature;
  • built-in circulation pump, which makes work easier;
  • summer operating mode, which can be configured manually.

Minuses

  • quite high cost, which not everyone can afford;
  • difficult installation of the boiler, even if you follow the instructions.

BAXI Duo-tec Compact 28 28 kW

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Advantages and disadvantages of electric boilers

Electric boilers are more popular among users than gas water heaters, this is due to a number of significant advantages:

  • ease of installation;
  • no need to build a ventilation system;
  • safety in operation;
  • independence from the initial temperature and water pressure;
  • high efficiency.

The disadvantages primarily include the limited amount of warm water in storage electric boilers. When the hot water in the tank runs out, you need to wait until the water heats up again, depending on the size of the tank - this can take a long time. Among other disadvantages:

  • high price;
  • a large-volume boiler will not fit into every home;
  • energy supply costs are much higher than those of gas water heaters;
  • short service life.

The best models of gas storage water heaters for 2019 – prices and customer reviews

As promised, we provide our readers with an independent rating of the best representatives in the class as of 2022 - from budget models to De Luxe products.

Instantaneous water heater Electrolux NanoPlus 2.0

And our TOP opens with a budget geyser from the Swedish company Electrolux. This option is perfect for a small apartment, and its pleasant appearance and electronic display will perfectly complement the decor of any kitchen or bathroom.

power, kWtProductivity, l./min.Combustion chamber typeHeat exchanger materialType of ignition
2010OpenCopperElectric (automatic)

water heater Electrolux NanoPlus 2.0

Flow-through gas boiler Zanussi Fonte Glass La Spezia

The next nominee comes from Italy. The combination of price and quality in this product is almost ideal. In addition to excellent characteristics, the model from Zanussi boasts a spectacular appearance that is ideal for the kitchen.

power, kWtProductivity, l./min.Combustion chamber typeHeat exchanger materialType of ignition
18,510OpenCopperElectric (automatic)

Zanussi Fonte Glass La Spezia

Instantaneous water heater Rinnai RW-14BF

The representative from the Land of the Rising Sun closes the top three best flow-through models. Both experts and buyers have known about the quality of their products for decades. In our case, the product is not only high-quality, but also profitable - its power is more than enough for a large family.

power, kWtProductivity, l./min.Combustion chamber typeHeat exchanger materialType of ignition
29,414ClosedStainless steelElectric (automatic)

water heater Rinnai RW-14BF

Gas storage water heater Ariston SGA 200 (liters)

Cumulative modifications are not so widely popular due to their size and features, but several representatives still managed to get into our rating. Among them, one of the most confident positions is occupied by the gas storage water heater Ariston SGA 200. The Italian brand is able to offer a colossal volume of heated water and responsible control over the gas level during operation.

power, kWtProductivity, l./min.Combustion chamber typeHeat exchanger material/tank inner coatingType of ignition
8,654openSteel/enamelPiezo ignition

Ariston SGA 200

Storage boiler Baxi SAG3 100 (liters)

Well, the “gold” of our TOP is confidently taken... again by a company from Italian masters! Their 100-liter gas storage water heater SAG 3 will be a reliable assistant during the most severe outages by water supply services. An excellent offer for a large private house that can easily provide hot water for at least four people.

power, kWtProductivity, l./min.Combustion chamber typeHeat exchanger material/tank inner coatingType of ignition
4,59,7openStainless steel/enamel (titanium)Piezo ignition

boiler Baxi SAG3

About the types and operating principles of different heaters

Before we begin the comparison, we will briefly list the types and design features of household water heating devices. The first group - boilers - are insulated tanks with a capacity of 30 to 500 liters, heated by low-power heat sources:

  • electric heating element consuming 1.5…3 kW;
  • gas burner with thermal power 3...5 kW;
  • a spiral heat exchanger-coil connected to the heating system (more precisely, to the boiler).

Accordingly, all storage water heaters are divided into 3 types - electric, gas and indirect heating. Accumulation tanks with a volume of up to 200 liters are offered in wall-mounted and floor-mounted versions, and over 200 liters in floor-mounted versions.

The principle of operation of the boiler is simple: the heating element, burner or coil heats the entire volume of water in the tank until the temperature set by the user is reached. Then the heat source is turned off and started only to maintain this temperature. Heating of the container lasts 1...3 hours depending on the amount of water and the type of heating element (the burner copes faster than the heating element).

Instantaneous water heaters differ from boilers in power - it is much higher. After all, the device must be able to instantly warm up the water as soon as the user opens the tap in the bathroom or kitchen. The heat source is the same heating elements and high-performance gas burners. The heater turns on automatically - based on a signal from the flow sensor.

In private houses and apartments, 3 types of instantaneous water heaters are installed:

  • geysers;
  • electric speakers for the shower;
  • electric heaters in the form of kitchen taps.

The thermal power of natural gas heaters starts from 8 kW, electric ones – from 3 kW (kitchen taps). Flow-through shower heaters consume more - from 8 kW. All household appliances of this type are designed for wall mounting.


Gas flow heater (photo on the left) and electric water heater

TOP 3 eighty-liter boiler models

Hyundai H-SWE5-80V-UI403

Hyundai H-SWE5-80V-UI403
Basic information:

  • tank volume – 80 l;
  • Max. water heating temperature – 75 °C;
  • consumption power – 1.50 kW;
  • tank coating – enamel;
  • functions – power indicator, heating temperature limitation switch.

In third place is a product from a Korean company, which stands out for its low power tubular electric heater - only 1.5 kW, which is less than many other models.

It should be immediately noted that this water heater model has several remarkable features, which will be discussed below.

  1. The inside of the water heater is covered with enameled steel.
  2. White design color.
  3. Highly reliable tubular electric heater with a power of 1500 W.
  4. RCDs and valves as useful means of protection.
  5. Magnesium anode for corrosion protection with extended length.
  6. A reliable security system that will protect the device from failure.
  7. An extremely dense thermal insulating layer made of environmentally friendly materials that keeps the temperature of heated water unchanged for up to 24 hours.

In general, this option is quite suitable for budget-conscious people.

pros

  1. A tubular electric heater, although low-power, can reduce the noise level of the device.
  2. Good thermal insulation allows you to maintain the temperature of heated water for a long time (usually around 24 hours).
  3. The presence of a multiple protection system with which you don’t have to worry about the device and even leave it plugged in.
  4. Due to the cylindrical shape of the tank, production involves reducing the number of welding seams inside. The fewer such seams, the higher the tightness.
  5. Thanks to the high-quality coating, it will not turn yellow or crack for a long time.

Minuses

  1. The absence of a temperature indicator will force the user to determine by touch whether the liquid is hot or not.
  2. A low-power tubular electric heater will heat 80 liters of water for an extremely long time - it takes more than three hours to do this.
  3. The location of the regulator is somewhat inconvenient and requires planning during installation of the boiler if there is a need for easier use.

Hyundai H-SWE5-80V-UI403

Polaris PF 80VR


Polaris PF 80VR
Basic information:

  • tank volume – 80 l;
  • Max. water heating temperature – 75 °C;
  • consumption power – 2 kW;
  • tank coating – enamel;
  • functions – heating indicator, thermometer, heating temperature limitation switch.

The second place in this rating is occupied by the PF 80VR model from the well-known company Polaris. This device deserves its place among many of its close competitors due to some advantages.

The first thing to note is efficiency. Consumption of 2 kW is considered quite economical, because most boilers consume 2.5 kW, and sometimes even more.

Secondly, it is necessary to note the high efficiency that this model shows. Heats water well, high-quality thermal insulation keeps the water temperature at the same level for a long time.

Thirdly, it is worth noting the durability of the device, based on the use of durable enameled steel, a protection system in the form of RCDs and valves, as well as high-quality assembly that will prevent leaks.

In general, POLARIS PF 80VR will solve the problem of lack of hot water - one of the common problems not only for villagers, but also for city residents.

pros

  1. The modest appearance allows you to adapt to any design.
  2. The stainless steel container boasts enhanced durability.
  3. Consumption of electricity in an amount sufficiently large for a device of this type does not overload the wiring - it only makes the cable warmer.
  4. Instructions that are clear to everyone and make using the device clear.
  5. Due to protection against overheating, the boiler's service life is increased and the reliability of the device is increased.
  6. Heated water can be used all day long. In this case, there is no need to waste electricity.

Minuses

  1. The switch is at the bottom - this creates some inconvenience for use.
  2. The inability to quickly heat water leads to long waits.

Polaris PF 80VR

Electrolux EWH 80 Gladius


Electrolux EWH 80 Gladius
Basic information:

  • tank volume – 80 l;
  • Max. water heating temperature – 75 °C;
  • consumption power – 2 kW;
  • tank coating – enamel;
  • functions - display, heating indicator, as well as switching on, thermometer, heating temperature limit switch.

In first place is the EWH 80 Gladius model from the well-known Electrolux company. Vertical installation of a water heater in a bathroom or kitchen can be possible thanks to the fastening elements included with the device.

The inside of the tank is coated with enameled steel, and therefore you don’t have to worry about emergency situations - they won’t arise anytime soon.

The Electrolux EWH 80 Gladius has enough power to heat water for three people without the need to save on water.

As a rule, the standard mode is used, but if necessary, you can switch to the eco mode, which reduces consumption.

Control of the device is based on the use of a display, which displays all the information and mechanical controls, which are the basis for interaction with the unit.

A rotary control is used to control the device, and this process is facilitated by a backlit digital display.

In general, this model is simply perfect for every home or apartment.

pros

  1. This water heater can be easily connected to a regular outlet, which allows you to use this same boiler all the time.
  2. Many different levels of protection that save the boiler.
  3. There are several operating modes, each of which can be selected.
  4. “Eco” mode can heat water up to 55 degrees with minimal electricity consumption.
  5. A protection system in the form of an RCD, which provides additional protection for the device.
  6. The warranty period from the manufacturer is quite long.
  7. There is a water purification system located inside the tank.
  8. Good thermal insulation, with which the water will remain at the same temperature as it was a day ago.

Minuses

  1. In standard mode, water heats up in about three hours, no less.
  2. Since the boiler itself is heavy, and then 80 liters of water will be added, the installation must be on strong anchors and a good wall.
  3. There is no drain hose included.

Reviews and prices for Electrolux EWH 80 Gladius

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Types of household water heaters

Features of connecting household heaters are directly related to the types of devices, their technical parameters, and overall dimensions.

Traditionally, two types of heaters are used in household practice:

  1. Cumulative.
  2. Flow-through.

Both types of boiler systems differ from each other in heating technology.

A storage type device equipped with an electric heater (TEN). Such equipment is most often used in the domestic sphere. Can be mounted directly in the bathroom if overall dimensions allow

With storage heaters, cold water is collected in a container, heated and then discharged for tapping.

With flow-through units, heating is carried out directly during the flow of cold water in contact with the heater, without collecting liquid in a storage tank.

Technical device of the storage boiler

A storage-type water heating system, boilers, in a simplified schematic form is a container equipped with electric heating elements or liquid heat exchangers. The storage vessel has pipe lines for cold water supply and hot water outlet.


A more powerful and voluminous design is an indirect heating installation. It is clear that the source of heating energy in this case is water coming from the heating system. However, if desired, it is possible to connect electric heating

The designs of indirect heating boilers are additionally equipped with a working coolant area and heating connection lines.

Any modern system, regardless of its design features, is equipped with automation, thanks to which the water heating temperature and the operation of the system as a whole are regulated.

Structural design of heating devices

There are designs of storage boilers designed for installation vertically (wall-mounted) and horizontally (floor-mounted). Of course, each individual case of using certain boilers has its own installation features.

So, if it is planned to install a water heating device on a wall, a preliminary calculation of the load and comparison of the results obtained with the design parameters of the wall of the room on which the device is to be mounted is necessary.


Instantaneous water heaters have been rapidly gaining popularity lately. Users are attracted by their small dimensions and the possibility of simplified, easy installation. Really convenient devices for low water consumption needs

Installing equipment without load calculations threatens to result in a fatal installation error, when a filled boiler can simply collapse along with the flimsy partition on which it was mounted.

According to the equipment instructions, the load must be calculated taking into account four times the weight of the boiler system.

Therefore, if the structure of the supporting wall is frankly weak, the water heater circuit must be supplemented not only with connection lines to the water supply and coolant, but also with reinforced racks - through fasteners.


Horizontal boiler installation used for local hot water supply. Electric heating is also provided here and in this installation option an expansion tank is installed, which is the right solution

In classic connection diagrams for wall-mounted boilers, the water supply/discharge pipes of heating devices are marked with the appropriate color – blue/red.

Form and installation of water heaters

We are usually used to seeing cylindrical-shaped water heaters, but rectangular-shaped boilers - especially convenient when installed in a cabinet or stand. There are also water heaters on the market with one narrow edge - “slim boiler” . This design allows you to install such a boiler in a niche or cabinet.

When installing boilers, you need to take into account its weight , which is approximately (storage boiler with water):

  • 30 liters - about 30 kg of load on the wall;
  • 50 liters - about 70 kg;
  • 80 liters - up to 100 kilograms;
  • 100 liters and more - from 130 kg and more.

Therefore, a boiler with a volume of up to 80 liters (sometimes 100) is hung on the wall, and the installation must be made in the solid brickwork of the main (load-bearing) wall or reinforced concrete panel using anchors. 100 liter boilers are installed directly on the floor, or hung on the wall with a special floor support underneath (albeit a homemade one - 100 liters of boiling water is no joke).

Advantages and disadvantages of geysers

Modern models of geysers differ significantly from their predecessors in their small dimensions and neat appearance, which allows them to be placed in any kitchen, even the smallest in size.

pros

In order to accurately understand for yourself whether a boiler or a geyser is better, in addition to the dimensions, you need to take into account no less significant advantages:

  • the ability to provide an apartment or house with hot water for a long time;
  • heating water almost immediately after opening the tap;
  • modern turbocharged speakers are equipped with electronic control systems;
  • reliability in operation;
  • ease of repair in case of problems.

Minuses

But like any water heating device, a geyser, in addition to its positive qualities, has a number of disadvantages. You shouldn’t forget about them either when determining whether a boiler or a gas water heater is better.

The most important in this regard are:

  • Installing a geyser in a house is quite a troublesome task. Before installation, you will need to draw up a project and coordinate it with specialized services.
  • Before installing such a structure, you will have to collect a whole folder of permitting documentation and obtain an official document allowing installation.
  • Any heater using gas will need to be equipped with a reliable chimney and a supply and exhaust ventilation system. Although there are exceptions, since many manufacturers sell modern units with coaxial exhaust of combustion products, in which a separate smoke exhaust circuit is not needed.
  • To achieve stable and uninterrupted operation, you will need constant gas and water pressure in the system. Unfortunately, modern houses in most cases cannot boast of the stability of these indicators.
  • In terms of the efficiency of its use, a gas water heater is somewhat inferior to the use of an electric boiler. The efficiency of a gas-based water heater is a maximum of 92%, while similar figures for electrical appliances are about 98-99%. This must also be taken into account when determining which is better - a gas water heater or an electric water heater.

Video material

When purchasing specialized devices to provide domestic hot water, it is impossible to say that a gas water heater or boiler is significantly better than alternative equipment. It is worth considering many important factors such as the number of family members, installation efficiency, room features and much more. We hope that the recommendations in this article will help you make the right choice and enjoy the hot water you need for a long time.

How to choose

The design features of instantaneous and storage water heaters affect the service life, energy savings and quality of water heating.

What to look for when choosing:

A magnesium anode is an important part that is found in the tank of almost every modern boiler. It gradually dissolves, starting the process of cathodic protection against rust and scale so that it does not settle on the heating elements. When a thick layer of plaque forms, the heating element consumes more energy and heats the water less well, which over time leads to unnecessary loads and failure. The anode is periodically pulled out and checked for wear, and replaced every 1-2 years. The heating element is closed type (the spiral is hidden in the housing) or open. The second heats up faster and is cheaper (but requires regular replacement), while the first provides better protection against potential shock hazards and is more durable. Based on materials, they are divided into copper, brass, stainless and silver plated

According to the type of flange (the spiral, thermostat and anode are attached to it), there are press-stamped (RF - without an anode holder) or cast (RCA PA, RCF, RDF, RCF OR, RNSA and others, depending on the model). The internal coating of the tank can be cheap plastic or high-quality metal made of stainless steel or coated with titanium enamel; sometimes a relatively inexpensive glass-ceramic layer is used, but it does not like temperature changes and heating above 60 degrees. Please also note the presence of a mesh filter at the end of the pipe to purify the water from heavy impurities.

For constant use in an apartment, it is better to give preference to an electric boiler with a capacity of 30-50 or 50-100 liters (depending on the number of people). A gas or electric flow-through appliance is very economical for summer cottages and apartments.

On the other hand, instantaneous boilers turn out to be less demanding on the parameters of a single-phase 220/230 V electrical network. In any case, the decision when choosing a boiler or instantaneous water heater is made individually.

Experts can only suggest and help compare the characteristics of each model. In some cases, both devices are installed at once to combine them separately for the kitchen and bathrooms on different floors in a large house.

Briefly about electric water heaters

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


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

The operating principle of an electric heater depends on what type it is. There are flow-through and storage water heaters.

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

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

Electric water heaters are often purchased both to supply hot water to a residential building and any industrial facility. Since the heating elements operate automatically, you can easily maintain a certain temperature, and periodic heating will help save electricity. A compact version - a flow-through tap - is installed in the kitchen of a country house or in temporary residences.

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

Even if the boiler breaks down, you can fix it at home. You just need to find the right spare parts and carry out the repairs.

Comparison factors

Each type of device has its own disadvantages and advantages. All of them directly depend on the conditions in which they are planned to be used.

Although, if you look at this situation from the other side, such equipment becomes the only source of hot water if the house does not have a centralized gas supply.

As you can see, both devices have a sufficient number of advantages and disadvantages, both in operation and in maintenance. The obvious disadvantage of the boiler is its size. An undoubted advantage is that its installation is possible on any surface of the house where there are water pipes and an electrical outlet. A wide range of storage tanks, presented in retail chains, allows you to choose the optimal shape for your home (there are round and flat boilers) and size. The correct shape of the device will ensure optimization of the interior space of the room

It is important to remember that this storage tank should be located at a level that will not complicate the process of cleaning the tank and replacing the magnesium anode.

According to safety requirements, it is recommended to place the gas heater in the kitchen. To use this heater safely, it is necessary to have a good ventilation system.

Another mandatory safety requirement is the presence of a chimney. Using the column requires the presence of an open flame. This leads to oxygen burning. To eliminate negative consequences, regular ventilation of the room is necessary.

How to calculate the volume of the boiler?

To choose the right boiler with the right volume, you must remember that there should be 50 liters per person. If installation is required for a family of four people, then a boiler with a capacity of 200 liters can be considered the optimal choice. But we note that calculating the capacity of a gas installation is an individual matter. If the family does not waste water, then in this case a tank of 50 or 120 liters will be sufficient . However, such a boiler installed in the bathroom will not allow all family members to take a bath consistently. You will have to wait some time for the water to heat up.

Indirect water heaters

By the way, it is possible to significantly reduce energy consumption by using new types of equipment.

Indirect storage water heater NIBE MEGA WE-150.81

So, which is better, an indirect type boiler or a column:

  • An indirect type boiler allows you to reduce energy consumption during the heating season. Its design contains an internal heat exchanger through which the coolant from the heating system circulates. It is with its help that water heating is ensured.
  • When the heating is turned off, the boiler operates as a standard device. By the way, there are models with built-in heating elements and a gas burner.

Devices of this type can significantly reduce the cost of providing hot water supply, however, such boilers are quite expensive.

We also recommend watching:

  • Chimney design for a geyser
  • How to choose the best water heater for a bath?
  • Choosing the best circulation pump for heating systems
  • Types and tips for choosing infrared wall heaters

Recommendations for choosing water heaters

Gas boilers are devices that pose a certain danger when used.
Therefore, you should approach the task of choosing them extremely responsibly. If you have planned to purchase a gas water heater, but your home does not have a chimney , then you should choose from units equipped with a closed chamber or equipped with a turbo hood. It is prohibited to install hybrid-coaxial chimneys in enclosed spaces. Their installation is usually carried out in boiler rooms or utility rooms with an effective ventilation system.

We recommend: Safety valve for a water heater: why is it needed, how to install

When choosing gas equipment for heating water, attention should also be paid to its power. It is optimal to buy a device that has a power/performance ratio of less than two units.

The most important thing when choosing gas equipment is safety. Before buying the selected device, you should make sure that it has protection against overheating and dry running. You also need to check that the boiler has draft and pressure sensors.

Responsibility

If the conditional Vasily opens an individual entrepreneur and something goes wrong, then in the event of bankruptcy Vasily will be liable to creditors with all his property - including the car that he bought even before he became an individual entrepreneur. In some cases, they can even take away the apartment if he has more than one.

If Vasily opens an LLC and goes bankrupt, then in most cases they will only take away what belongs to the company: property, money in current accounts and furniture from the office. A personal car should not be touched, although there is a way.

Administrative liability, that is, fines, also differs. Typically, the law provides for different amounts of fines for organizations and officials. Individual entrepreneurs are fined as officials by default. OOO is more painful.

For example, if a company accepts money from individuals and does not have a cash register, then the fine is from 75 to 100% of the settlement amount over the counter, minimum 30,000 RUR. The fine for individual entrepreneurs is from 25 to 50% of the settlement amount, minimum 10,000 R.

Which boiler is better?

As can be concluded from the information above, a gas storage boiler, or rather its connection, requires quite serious work. But if, as a result, the consumer’s desire has not disappeared or he simply does not have a reasonable alternative, then only one question remains: which water heater is better?

It makes sense to create some kind of rating, but it hardly makes sense to include specific models in it. There are too many of them, and each boiler has its own characteristics and is designed for different operating conditions (user requirements). Therefore, it is better to compare manufacturers with each other, the range of models of which, as a rule, have the same type of design solutions that are available or not available from competitors.

So, in the domestic market, the segment of gas storage water heaters, paradoxically, is represented by foreign-made samples:

  • BAXI. The well-known Italian brand is represented by the SAG3 model series, with a tank capacity from 50 to 300 liters. The tank is made of steel followed by enameling. The combustion chamber is open type. A burner with a piezo ignition function allows you to quickly switch from natural to liquefied gas, operating effectively at low pressure in the gas and water supply and with absolute energy independence. If necessary, it is possible to connect several boilers in parallel with an installed thermal power of 4 to 20 kW;
  • VAILLANT. The products of the famous German brand are highly reliable and durable. The domestic market offers models with tank capacities from 130 to 220 liters. The thermal power required to heat such a volume of water to a temperature of 70ºC varies from 6.3 to 8.6 kW. In terms of design, we also have a steel enameled tank with an open combustion chamber. The injection burner used is also capable of operating on natural and liquefied gas;
  • ARISTON. Another representative of the Apennine Peninsula, which has its own production facilities in Russia (electric boilers of this brand are definitely produced here). The range is represented by household water heaters with a volume of 50-195 l, which allow wall and floor installation. Technical solutions and characteristics are similar to models from previously mentioned manufacturers, but the price is significantly lower. For comparison, the Ariston SGA 200R model with a volume of 195 liters costs approximately 38,000 rubles, while its analogues BAXI SAG3 190 and Vaillant VGH 190/5 XZU cost 46,500 and as much as 80,000 rubles, respectively;
  • HAJDU. The products of the Hungarian brand are also one of the oldest on the European market. In Russia it is represented by wall-mounted boilers with tank volumes of 80, 120 and 150 liters. This approach allows you to free up significant space compared to floor-standing analogues. In addition, water heaters from this company are distinguished by high efficiency, precise temperature control, the ability to operate in a chimneyless system and a warranty of up to 5 years. The price, which for the presented models is in the range of 25-33 thousand rubles, cannot but please;
  • AMERICAN. The top five is completed by the MOR-FLO line of floor-standing boilers, made in the USA. Models with volumes from 150 to 284 liters are presented here, which allows them to be used in domestic and commercial environments. In addition, they are distinguished by a reliable enamel coating, excellent thermal insulation, an open combustion chamber with a powerful burner (there is a piezo ignition function). MOR-FLO water heaters cope perfectly with work at various pressures of water and gas, are non-volatile, and can be connected to operate in cascade. Like the HAJDU models, they have a long warranty period (6 years) at a fairly reasonable price: the 190-liter G62-75T75-4NOV has a price tag of 41,000 rubles.

TOP 3 fifty-liter boiler models

Timberk SWH FSM3 50 VH


Timberk SWH FSM3 50 VH
Basic information:

  • tank volume – 50 liters;
  • Max. water heating temperature – 75 °C;
  • consumption power – 2.5 kW;
  • coating – stainless steel;
  • features - heating indicator, as well as power on, heating temperature limitation switch, fast water heating.

Third place in our ranking is occupied by a model from the Swedish manufacturer Timberk. It should immediately be noted the high quality of Scandinavian products, with which you can not worry for a long time about the possibility of leaks, holes and other problems in the device’s stainless steel body. The multi-level protection system will also prevent water from leaking.

High quality allows us to confidently talk about a long service life even after the warranty expires.

Inside the container there is a copper tubular electric heater with a power of 2.5 kW. The selected metal allows you to heat water quickly and supply it to the owner of this boiler immediately after turning it on. Thanks to the thick thermal insulation, the body remains cold enough and when you touch it, you won’t even feel how much the water has warmed up.

pros

  1. High build quality - there will not be a single gap, not a single mismatched part.
  2. Having the ability to quickly heat water will save time after you come home from work.
  3. Thick thermal insulation, making the outside of the case cold.
  4. If the lights are turned off, the boiler can remain warm for a long time.
  5. Since the assembly is good, the boiler will not leak, and the body itself will not rust.
  6. Installation in horizontal and vertical planes is allowed.
  7. Stylish design using a nice silver-black hue.

Minuses

  1. The package includes two anchors instead of four, as stated in the instructions.
  2. During the heating process it makes quite a lot of noise.
  3. The heavy weight requires extremely secure wall mounting.

Reviews and prices for Timberk SWH FSM3 50 VH

Haier ES50V-R1(H)


Haier ES50V-R1(H)
Basic information:

  • tank volume – 50 l;
  • Max. water heating temperature – 75 °C;
  • consumption power – 2 kW;
  • tank coating – enamel;
  • Features - thermometer, heating indicator, as well as power-on, heating temperature limitation switch.

Second place goes to the Haier water heater. Due to its features, it is designed for vertical installation.

The volume of the tank is more than enough when you need to take a swim or wash all the dishes in the washbasin. The enameled steel from which the tank is made prevents leakage, and the magnesium anode prevents corrosion.

The connection to the pipes is located at the bottom. The minimum possible liquid pressure on approach is 0.5 bar, the maximum is 7.5 bar. In a little more than an hour, the water heats up to 75 degrees – its maximum.

The manufacturer notes the use of a thermometer, thanks to which you can monitor the temperature of heated or cold water. It is also necessary to note two protection systems that are installed in this model: one is from overheating, but the other is from working without water. It is impossible not to highlight the ability to limit the temperature to which the water heats up.

pros

  1. Almost silent, which reduces background noise.
  2. Cute appearance that can easily blend in with your bathroom or kitchen design.
  3. Good thermal insulation allows you to keep the water temperature within the same value for a long time.
  4. A carefully executed electrical part (various relays, terminals, and wiring) indicates a high-quality approach to the equipment.
  5. The tubular electric heater has fairly good wear protection.
  6. There is no need to run a separate line from the boiler to the panel - you can immediately connect to a regular outlet.

Minuses

  1. Anchors bent at 45 degrees complicate the installation itself.
  2. It is necessary to drain the water completely before each winter if the boiler is located, for example, in a summer cottage.
  3. The instructions from Chinese into Russian are translated simply horribly.
  4. The mounting plate often has asymmetrical holes, and with such holes the boiler cannot be placed level.

Haier ES50V-R1(H)

Polaris Vega IMF 50V


Polaris Vega IMF 50V
Basic information:

  • tank volume – 50 l;
  • Max. water heating temperature – 75 °C;
  • consumption power – 2.50 kW;
  • tank coating – stainless steel;
  • functions - display, heating indicator, as well as switching on, thermometer, heating temperature limit switch, fast water heating.

In first place is a water heater from the well-known company Polaris, with which any apartment, cottage, bathhouse and other household premises will have hot water.

The inner part of the case is made of high quality steel, which is quite resistant to corrosion.

Important! The ability to quickly heat water will save a lot of free time.

The water heater itself, according to experts from Obzor-Expert.com, fully deserves to be in first place due to its good thermal insulation properties, ergonomic controls, and also for its build quality.

pros

  1. Ergonomics are at a high level - anyone can understand the device.
  2. Heating water quickly is a great help when you have little free time.
  3. The container is made of stainless steel, which means there is a guarantee that it will not leak for a long time.
  4. The shallow depth makes it easier to install the device.

Minuses

  1. Since the kit includes anchors with a diameter of 16 mm, finding a drill of the same diameter becomes quite difficult. In this case, it is easier to buy 10 mm anchors separately and hang the boiler on them.
  2. The tubular electric heater used is a wet type, the use of which involves certain difficulties.
  3. Although there is a digital display, the boiler operates on a mechanical control, which allows for some errors.
  4. Being placed at a high altitude makes it difficult to reach the regulators - you need to take additional items with you to reach them.

Polaris Vega IMF 50V

Which option is more economical and efficient?

Determining which type of heater is the most economical is not so easy; it is important to take into account the characteristics of hot water consumption, intensity, and continuity. It’s one thing when you need to take a shower, and several family members use the hot water; it’s another thing when the hot water is constantly turned on and off. The fact remains that methane gas is the cheapest type of fuel

The fact remains that methane gas is the cheapest type of fuel

It is also important to take into account that one cubic meter of gas emits 8 kW of thermal energy, and 1 kW of electrical energy is converted into 1 kW of thermal energy. The economic benefits of using a flow-through gas column would seem obvious. However, not all so simple

However, not all so simple.

In a storage heating element boiler, the peak load occurs in the first 20 minutes of heating. Thermal insulation provided in the equipment reduces heat loss. As water consumption increases, the cost of using equipment decreases.

As for a gas instantaneous water heater, the peak load occurs at the beginning of operation. Despite the fact that one cubic meter of gas emits 8 kW of thermal energy, there are heat losses. A gas electric heater is beneficial if you use it for a long time (for example, for taking a shower), and not constantly turn it off and on.

Conclusions and useful video on the topic

It is possible to give a definite answer about the benefits of purchasing a gas or electric water heater only taking into account the purpose of purchasing this equipment and the characteristics of the room where it will be installed:

In retail chains, markets and online stores you can find a huge selection of water heaters for every taste and budget. However, the most important thing is to take into account the characteristics of the room where you are going to install this equipment. Do not forget about the purpose of the purchase, because if this equipment is needed only for a couple of days a year when there is no hot water, you should not buy a very powerful boiler.

Don’t rush into purchasing - carefully analyze your conditions and needs, and then you will definitely be able to find the right option for you and your family members.

What type of water heating equipment did you choose? Share your experience of use with other visitors to our site, tell us if you are satisfied with your device or if you think you made a mistake in your choice? Express your opinion, participate in the discussion - the comment form is located below.

Flaws

Despite the numerous positive aspects, geysers also have disadvantages. Experts note the following disadvantages:

  • The premises require additional equipment. For normal and safe operation, it is necessary to ensure the flow of fresh air and the removal of combustion products. The room where the column will be installed must be equipped with a good ventilation system and a chimney must be installed there.
  • Disadvantages include constant maintenance. The design uses elements made of non-ferrous metal. With frequent contact with an open flame, they begin to fail. It is necessary to constantly monitor the condition of the main elements, remove soot and monitor the condition of the chimney.
  • Installing a geyser will require additional costs for design documentation. Without this, regulatory structures, in particular gas workers, will not allow operation.
  • Some experts note another disadvantage - safety. Quite often you can hear about explosions in private and apartment buildings. During operation, you should constantly monitor the presence of water. But modern equipment has many additional sensors that help ensure safe operation.
  • Requirements for water pressure. A number of inexpensive models require a certain system pressure. If the pressure is small, then the column simply will not turn on. This is especially true for residents of the upper floors of apartment buildings.

Another drawback, but not so significant, is the relatively low level of efficiency. In the case of a gas water heater, it approaches a value of 92 percent. If we are talking about the closest competitor, a boiler, then the efficiency of this device is almost one hundred percent.

TOP 3 wall-mounted convection gas boilers

Convection options for gas boilers are considered quite compact. It is because of this that they are chosen especially often.

As a rule, this type of boiler heats small rooms, that is, it is enough for an average apartment. In addition, the ability to install on a wall makes it easy to access for use and repair.

BAXI ECO-4s 24F 24 kW


BAXI ECO-4s 24F 24 kW
Basic information:

  • boiler type: convection;
  • number of circuits: two;
  • Max. thermal power: 24 kW;
  • installation: on the wall;
  • mains voltage: single-phase;
  • control: electronic;
  • features: built-in circulation pump and expansion tank.

Third place in our ranking is occupied by the Italian company BAXI with its model ECO-4s 24F 24 kW. This model is assembled according to European standards, which means that only high-quality materials are used.

This model stands out for its ability to provide heat to both small apartments and entire houses, which is quite convenient.

This gas boiler heats water up to 60 degrees, which is considered the optimal solution, because this temperature range is enough for everything: washing all the dishes in the house, swimming or taking a bath, even dispersing water throughout the entire heating system.

A copper heat exchanger inside the boiler will provide this very heating of water in tandem with an additional one made of chromium-nickel steel, which can resist corrosion.

It should also be noted that there is a small LED screen, from which it is easier to view the status of the gas boiler.

Overall, the model is quite good, so you can consider purchasing it.

pros

  • can work not only for heating water, but also for heating;
  • multi-level protection system, with which there is no need to check the status of the device;
  • high efficiency of the device (about 93%);
  • A circulation pump is built into the design of the gas boiler.

Minuses

  • The rather large weight of the gas boiler makes the installation process difficult;
  • The model is a little outdated in comparison with its contemporaries, although it is still considered reliable.

BAXI ECO-4s 24F 24 kW

Viessmann Vitopend 100-W A1HB001 24 kW

Viessmann Vitopend 100-W A1HB001 24 kW
Basic information:

  • type: convection;
  • number of circuits: one;
  • Max. thermal power: 24 kW;
  • installation: on the wall;
  • mains voltage: single-phase;
  • control: electronic;
  • Features: built-in circulation pump and expansion tank.

In second place is the boiler model from Viessmann - the number one option when it comes to single-circuit gas boilers.

This model copes with its task - to heat water and rooms - with a bang. What is good is the low energy consumption, with which the boiler can be safely plugged into an outlet and left as is.

The temperature “segment” of this model is quite large – from +40 to +80 degrees, which allows you to take a shower or bath and wash dishes in the best conditions.

Important! This device will perform remarkably well in any climate zone, ranging from moderate to colder variations.

It is worth noting the presence of a summer operating mode, as well as a built-in circulation pump, with which this model can cope with any task set by the user.

Overall, this model is more than worth paying attention to.

pros

  • multi-stage fire protection system;
  • the presence of an expansion tank with a capacity of six liters, which is quite convenient;
  • closed combustion chamber, so that fire does not get out;
  • durable composite materials used to create this boiler.

Minuses

  • the boiler is too heavy and requires several people to install it;
  • The maximum pressure in the boiler is too low - only three bars.

Viessmann Vitopend 100-W A1HB001 24 kW

Vaillant turboFIT VUW 242/5-2 23.7 kW

Vaillant turboFIT VUW 242/5-2 23.7 kW
Main parameters:

  • type: convection;
  • number of circuits: two;
  • Max. thermal power: 23.7 kW;
  • installation: on the wall;
  • mains voltage: single-phase;
  • control: electronic;
  • Features: built-in circulation pump and expansion tank.

In first place is the reliable dual-circuit Vaillant turboFIT VUW 242/5-2, with which you no longer have to think about the issue of heat and hot water.

The thermal power, of course, is slightly inferior to previous models, but it can be adjusted if necessary. For this purpose, the burner in the boiler design was made to be simulated.

In addition, you need to pay close attention to the high-quality operation of the combustion product removal system, as well as the automated smoke removal algorithm, which is responsible for this removal.

Important! Thanks to the algorithm, this boiler is installed in residential areas.

This model has several notable features:

  • built-in frost protection system;
  • filling valve;
  • electronic ignition;
  • durable copper heat exchanger.

And due to its affordable price, this model, in general, can be called the best purchase for heating small rooms.

pros

  • flow mode, which provides both heating and water heating at the same time;
  • an additional tank of seven liters in addition to the main 80 liters;
  • high efficiency (93.5%);
  • The safety level allows you to install this gas boiler in a residential area.

Minuses

  • the plate heat exchanger is the most vulnerable element of the boiler (it can often break);
  • the boiler is operating too loudly - the background noise increases greatly with it.

Reviews and prices for Vaillant turboFIT VUW 242/5-2 23.7 kW

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