Review of gas boilers for home and garden. Review of gas storage water heaters for home and garden The best instantaneous gas water heaters

Receiving problem hot water relevant among residents of the private sector. Quite often homeowners use gas water heaters accumulative type. Although this version of the heater is more expensive, it pays for itself faster during operation: gas is many times cheaper than electricity.

Heating occurs in quite spacious tank, which is the main part of the entire structure. Its size ranges from 50 to 300 liters. Heating occurs using heat exchanger, combustion products are removed from the product using an outlet pipe. There are also special sensors whose responsibilities include monitoring various parameters, heat-insulating elements, an ignition system, cold water supply and heated water outlet pipes.

The boiler fills with water automatically. Upon entering the tank cold water, the gas supply to the burner is turned on, the resulting heat flow leaves the product through the pipe special design(with a turbulator), heating the volume of water along the way. When the set value is reached, the temperature sensor turns off the gas and heating stops.

What is the difference between such a water heater and a gas water heater? The storage boiler gradually heats the volume of water poured into it, and only when the temperature set by the consumer has been reached can it be used. The geyser heats the water immediately, as it works on the principle of a flow-through heater. What both devices have in common is that they use gas as a heat source.

You can get visual information about the design of a gas boiler from this video:

Types of boilers

Such Appliances Experts classify according to several criteria:

1. Combustion chamber type - open or closed.
2. The ignition system is from a piezoelectric element or an electrical home network.
3. According to the installation method - on the floor or wall option.

A gas water heater with an open draft is equipped with a similar combustion chamber. They work according to the following principle: oxygen, so necessary for stable operation, comes directly from the room where the boiler is located. All combustion products are removed through chimney, which the user must install in advance.

The cost of this type of water heater is cheaper, but installing a chimney system will cost a pretty penny, which does not appeal to users.

With a closed combustion chamber

A boiler using forced draft is considered by experts to be more economical option for placement in your home: its closed chamber has a special system for removing combustion products using powerful pump. This type does not require separate ventilation system, because they do not use air from the room for sustainable combustion - this fact becomes decisive when homeowners choose them for private buildings.

With piezoelectric element

To start a modern gas water heater, you no longer need matches or a lighter - each product has a special button, when pressed, the unit starts working. Products of this class are equipped with a piezoelectric element, which ignites the gas. Many users consider this an atavism, an outdated option, but these boilers do not lose their popularity due to their low price.

Some homeowners are keen to purchase the latest model of gas boiler with the latest system automatic start, which works independently - you just need to open the tap. Similar models are much more convenient to use and consume blue fuel very economically, and the piezoelectric element can be powered by electric power or Mars-type batteries.

Floor option

Installation of a gas water heater on the floor is carried out due to its rather large dimensions and weight: the product tank can hold 100-300 liters of water. Before purchasing such a massive device, you need to arrange a place for it - perfect option in a separate room, where gas can be easily supplied. Owners of private houses buy such boilers to provide for the whole family. hot water all year round, in a city apartment multi-storey building placing such a giant would be problematic.

Wall placement

As a rule, with this option, water heaters have a more compact appearance: they are placed in the bathroom above the sink or toilet, which allows users to save space and use it more efficiently. These water heaters are designed for a small volume, so they can be installed in a city apartment of any size - the product will provide you with hot water without taking up much space.

What volume to choose

To choose a gas storage water heater that is ideal for your family, you need to know the hot water consumption per person. Experts assure that this figure is in the range of 50-70 liters. daily consumption. Manufacturers of similar equipment produce various options with a volume of up to 300 liters, so choosing the required option will not be so difficult.

When a water heater is purchased for a family living in own home outside the city, then we need to consider options no lower than 150 liters - this is the volume that can satisfy the personal hygiene needs of all household members. For those who doubt the validity of this statement, let's do some calculations:

• take a bath - at least 150;
• shower - 50-100;
• morning hygiene - 15 liters;
• for washing dishes - no more than 30 liters.

Now multiply all this by family members - the result is unlikely to please you.

The volume of boilers from 200 liters is considered the best option For big family with small children.

Additional device selection options

When choosing a storage gas boiler, you should pay attention to the following important parameters.

Rated power

This indicator for gas products starts from 4-6 kW: in a boiler with a tank volume of at least 150 liters, 7 kW burners are installed - it only takes about an hour to heat the entire volume. An electric boiler with similar parameters takes from 2 to 4 hours to heat up. The decisive factor here is that gas is much cheaper, and in operation there are other nuances in favor of the gas option.

Material of manufacture

Tank modern products made from simple steel grade coated with special compounds or made from very expensive of stainless steel. Each option has its pros and cons.

The first option is much cheaper than the second, but when choosing, the user must also take into account the fact that the first tank has thinner walls, which is of primary importance when frequent water hammers occur in the water supply system. Stainless steel is more resistant to corrosion, and the special enamel coating can crack over time - the container quickly rusts and becomes unsuitable for use.

When to use different sprayings from titanium to glass porcelain, then the service life of the container has different time values, but the composition of the coating has strong influence to the final cost of the product. There is another nuance here: frequent temperature changes cause microcracks to appear over time; to prevent their appearance, the user must set the temperature not exceeding 60 0 C. Sometimes, to prevent the development of various bacteria, it is necessary to heat the water almost to a boil.

Today, boilers with stainless steel tanks are considered the most reliable. Their warranty is 7-10 years, while tanks coated with porcelain glass only have a warranty of no more than 12 months.

Magnesium anode

All boilers are equipped with such a device, its technical name is electrochemical protection with a sacrificial anode, which is made mainly of magnesium, sometimes of zinc. The anode gradually dissolves due to oxidation, providing reliable protection inner surface of the tank from corrosion. Replacement also depends on the structure of the water: it is changed at least once a year for sprayed tanks, and when a stainless steel tank is installed, there is almost no need to change the anode. When purchasing, always inquire about the presence of a magnesium device inside the product or find similar information in the instruction manual.

Insertion diagram and installation

Installation gas equipment is strictly regulated, so you cannot do without a specialist with the appropriate approval - otherwise you will not have to rely on warranty service later.

Connection diagram for storage gas water heater

1. The boiler is installed in such a way that there is a gap between the product and the wall necessary for inspection and maintenance of all components.
2. A pipe of at least ¾ inch is used for connection, and there is important feature: The hot water drain pipe is connected on the left, and the cold water supply on the right.
3. To avoid overheating of the water heater, it is necessary to use safety valve.
4. Before connecting the device to the water supply system, turn on the water and check its quality for foreign impurities. Or better yet, install it on the supply pipe special filter, protecting expensive equipment.
5. Few users know that the pressure should not exceed eight bar, otherwise a reduction reducer must be installed.
6. Water will constantly drip from the hydraulic valve - this is normal, but you need to install a drainage pipe into the sewer so that it does not get on the boiler body.
7. If you do not live permanently in winter country house, then drain the water every time you leave, otherwise the equipment will become unusable.

As you can see, there are many nuances when installing a gas water heater, but if you do everything that is required, the product will work properly for a long time.

Security measures

Often many users have doubts about safe use equipment using open flame, but the manufacturers assure that they have accepted everything necessary measures on safety. Such systems include:

• traction sensor, which is triggered in case of any malfunction of the chimney - it immediately turns off the gas supply;
• hydraulic valve- it instantly reacts to the lack of water, the gas supply is immediately blocked to prevent overheating of the equipment;
• flame controller- this is an ordinary thermocouple, sometimes it is supplemented with an ionized corrector; if the flame goes out for some reason, the gas supply is blocked, thereby preventing its unwanted leakage.

The exhaust hood, which any product of this class has, prevents the possibility of combustion products from flowing back into the room where the boiler is installed. Therefore, the user does not have to worry - that's all harmful substances are reliably removed and to the inhabitants country house no threat in the morning headache due to the use of a gas water heater.

In Russia, one of the most accessible resources is natural gas, and this concerns various aspects: both the price per cubic meter and the availability of a gas pipeline in most settlements countries (even in the smallest and most sparsely populated places). It is for this reason that for many families in Russia it is optimal to install a gas storage water heater. You won’t have to pay much for its maintenance, which, no doubt, will significantly optimize family budget, and the ease of operation and reliability of modern gas models will allow you to be absolutely confident in them.

The cost of such devices is quite affordable for the general population of our state. More often people want to buy them for a large private house, because here the energy savings will be obvious. When choosing a storage type device, be sure to consider how many liters of tank will correspond to your DHW consumption. Observe and calculate how much your entire family needs, and only then make a decision!

Hot water flowing from the tap without interruption is one of the signs of comfort in any room. However, Russian reality is such that people cannot always use hot water all year round.

Installing an economical gas water heater will help solve everyday inconveniences.

A gas water heater is a device for heating water from a water supply system using the energy of gas combustion. At the same time, both natural and bottled (liquefied) gas can act as a “supplier” of this energy.

Depending on the principle of heating water, gas water heaters are of two types: storage and instantaneous.

1. Storage gas water heater (gas boiler).

This type of gas water heaters is a container (reservoir) from which hot water is distributed through pipes to water distribution points - taps.

The tank of a storage gas water heater, depending on the model, has a volume from 10 to 500 liters and is made of either steel coated with enamel or porcelain glass, or stainless steel with titanium coating.

One of the main advantages of storage gas Baxi water heaters- this is an opportunity to use at once a large number of hot water even during a complete shutdown of the water supply system. In this case, access to the water accumulated by the water heater is provided without any time delays.

Unfortunately, like everyone else technological device A storage water heater has a disadvantage due to the fact that the hot water remaining in the pipes between the tank and the tap cools down over time. For this reason, many users of storage water heaters are forced to open the tap and wait for the cooled water to “drain.”

This problem can be solved by installing a circulation system, which consists of a small pump connected by a small-diameter pipe to a system of pipes through which water from the tank flows to the taps. The pump pumps the water remaining in the pipes, but not used by the consumer, back into the container, thereby preventing it from cooling.

2. Instantaneous gas water heater (gas water heater).

In essence, instantaneous gas water heaters are high-speed heat exchangers in the form of copper spirals or stainless steel plates. The principle of their operation is as follows: a cold water flow from the water supply system enters the body of the geyser, inside which, due to heating, the water temperature rises. The water temperature is set by the consumer using a manual regulator, the water heating period is from 3 seconds to 2 minutes. Depending on the model, a flow-through gas water heater supplies the consumer with 10 to 27 liters of hot water per minute.

The main advantage of a instantaneous gas water heater is its ability to supply hot water in a volume not limited by the tank. Also, unlike storage gas water heaters, instantaneous water heaters are relatively small and, as a rule, do not require specially equipped premises.

However, during operation instantaneous water heaters it is necessary to pay attention to pressure drops in the water supply system. An insufficient amount of water can lead to overheating of the heat exchanger and, accordingly, activation of the protection and blocking of the burner. Thus, until the pressure in the water supply is normalized, it will be very difficult to heat the water.

Instantaneous water heaters consume fuel only during use, that is, direct heating of hot water, which makes them more economical than storage water heaters.

Gas combustion chambers in a water heater

Gas water heaters, regardless of the principle of heating water, are equipped with combustion chambers, which, depending on the nature of the removal of waste fuel, are of two types - closed and open. In open-type combustion chambers, the fuel combustion process occurs under the influence of natural draft, which entails the need to ensure a continuous flow fresh air to the room where the gas water heater is located.

The main disadvantage of a water heater with an open combustion chamber is that after its installation in residential premises that are not equipped with additional ventilation, there may be a lack of air, a feeling of stuffiness and congestion. carbon monoxide. For this reason, it is necessary to allocate a separate room for such equipment.

In gas water heaters using a closed combustion chamber, air is supplied outdoors using the so-called coaxial chimney, which is the simplest design"pipe in pipe"

During operation in such a chimney, gas combustion products are ejected through an internal, narrower tube, while the air for operating the chamber flows through external pipe. The movement of combustion products of fuel and air is carried out using a small electric fan.

Ignition of gas in a water heater

Gas water heaters use different kinds ignition of gas in the burner, which, in general, can be divided into 2 groups:

1. Ignition of gas with a pilot wick.

In water heaters with a pilot wick, a semi-automatic system (piezo ignition and electric ignition) is used to ignite gas. In this case, ignition is carried out at the touch of a button.

Water heaters with this type of ignition consume more fuel, part of which burns in the duty wick.

2. Ignition of gas without a wick.

In this case, ignition occurs automatically using hydrodynamic or electronic ignition. In this case, the signal to turn on and start heating water will only be the consumer opening the tap.

In general, ignition without a wick is the most convenient and beneficial for the consumer, as it provides gas savings of up to 15%.

Automation.

Gas water heaters various types equipped with control and protective automation of varying levels of complexity.

Protective devices, as a rule, are automatic valves that instantly cut off the fuel supply to the main burner. Protection is enabled automatically in the following cases:

— stopping the flow of water through the heat exchanger or reducing the pressure in the water supply system;

— failure or malfunction in the gas ignition system;

- absence or weakening of draft in the chimney.

Besides protective automation Experts recommend installing stabilizers on gas water heaters, which help control the power of water flow, maintain the temperature set by the consumer, and also, to a large extent, the noise level of the equipment.

Control automation systems that are installed on water heaters include thermostats and command controllers. Thermostats are designed to regulate the temperature of hot water and are usually an additional control panel on the body of the water heater. But in some models of gas water heaters, thermostats look like a remote control with a moisture-repellent coating.

Command controllers allow the consumer to set the temperature for specified periods of time and completely turn off the water heater when hot water is not required. These devices, as a rule, are installed only on storage water heaters.

Features of placement, installation and maintenance of gas water heaters

When purchasing a gas water heater, the consumer is faced with the need to prepare the point where the system will be installed. Depending on the type and dimensions of the water heater, this may be separate room or a specially equipped place (part of a wall, corner, etc.).

The room intended for installation of a water heater must have a ceiling height of at least 2.2 m, and a volume of at least 8 m3 for equipment with an open combustion chamber and at least 6.5 m3 for a system with a closed chamber.

Regardless of the type of combustion chamber, there should be a ventilation duct, extending outside the room, or at least an indirect opening for air flow (gap between the floor and the door, grille, etc.).

The room in which the water heater will be installed must be heated and protected from frost. Otherwise, the water in the water pipes and tank will freeze, which will lead to equipment damage.

The wall on which the water heater will be mounted must have a non-flammable coating so that heating does not lead to a fire.

In general, it should be noted that the most optimal place for placing small gas water heaters is the kitchen or room next to the water points. For large-volume storage water heaters, basements and semi-basements are best suited.

Manufacturers and suppliers of gas water heaters often require that installation of the equipment be carried out exclusively by their service personnel. It should be noted that such a requirement is quite justified, since employees who are familiar with the company’s water heater models can perform high-quality and safe installation of the system.

Most of the work when installing a gas water heater consists of connecting gas and cold water to the equipment, as well as installing and adjusting the automation. Gas is supplied to the system using copper or steel pipes, equipped gas taps and mechanical filters against pollution. A shut-off valve must be installed on the pipe through which cold water flows, which is closed during an equipment failure. In addition, they install on the gas water heater system check valve, preventing the return of heated water to the water supply system.

The quantity and configuration of equipment that can be additionally installed on a gas water heater depends on its type, type of combustion system and characteristics of the fuel (natural or liquefied gas).

Gas water heaters, like any complex ones technical devices, require periodic inspections to ensure they are efficient work. Service can be carried out both by the seller’s specialists and by employees of the company providing such services.

The frequency of technical inspections depends on the complexity of the equipment, but cannot be less than once a year.

To summarize this article, it is worth saying that gas water heaters are ideal for providing hot water on an ongoing basis and compare favorably with others in their efficiency, convenience, durability and independence from the electrical network. Gas water heaters are equally successfully used for both domestic and economic needs in the presence of natural or liquefied (cylinder) gas.

On Russian market presents a wide range of domestic and foreign manufacturers with a large selection of models.

It is necessary to purchase gas water heaters only in new condition, checking that the seller has all certificates and permits. Installation of equipment should also be entrusted exclusively to qualified specialists who have licenses and work permits.

WITH flow heaters all clear - geysers They work much more efficiently than their electric counterparts.

Flow-through, storage and combined boilers - selection and operating features

And from the point of view of paying bills, “gas” hot water supply looks more attractive than the “electric” option. Any homeowner will agree with this opinion.

However, in the case of storage heaters - boilers - such a unity of judgment is not observed. Therefore, in this article we will try to find out which is better: a gas or electric boiler.

Gas water heaters

Round One – Design Review

Any boiler consists of identical components:

• A storage tank into which cold water flows. Moreover, the supply of cold water and the removal of hot liquid is carried out using special fittings.
• A heating element that increases the temperature of the water in the tank.
• Thermostat - a control and regulatory element that turns on the heater when minimum temperature and turning off when reaching the specified degrees.
• A control panel that allows you to calibrate the thermostat by raising or lowering the set temperature in the tank.

At the same time, a gas boiler differs from an electric storage water heater only in the design of the heating element. An electrical appliance uses a heating element as a heater - a tubular conductor with high resistance that heats up when connected to the network.

Heater gas appliance is more complex. It consists of a gas burner built into a cylindrical combustion chamber, which is also a flue - a pipe that discharges combustion products outside the housing. In this case, the gas duct is built into the storage tank - it penetrates through it, like a samovar pipe. That is, the burning gas heats the air in the flue, which, in turn, transfers the temperature to the water in the tank.

Diagram of the internal structure of a gas water heater

As you can see: a heating element an electric boiler is simpler than a similar unit of a gas appliance. However gas-burner works for years without burning out or rusting from water. And the surface area of ​​the flue is much larger than the similar parameter of the heating element.

As a result, a gas boiler operates more efficiently than its electric counterpart. While the heating element heats a couple of liters, a gas burner can boil 3-4 times the volume of liquid.

So this round is left to the gas boiler.

Round two – comparison of installation processes

The dimensions and weight of an electric and gas boiler, designed to serve the same volume of liquid in the tank, are approximately equal. Therefore, the process of attaching the boiler to the supporting surface will be absolutely identical in both the “gas” and “electric” cases.

The boiler is connected to the hot and cold water supply network according to a standard scheme, common for both gas and electric storage water heaters.

Installation of a gas water heater

But the connection of the “energy line” is implemented according to completely different schemes.

An electric boiler is simply “plugged” into an outlet without asking permission from the energy company. The gas boiler is connected to the gas pipeline, with the support of the appropriate service.

Moreover, both connection schemes are equally simple - even a novice electrician or gas fitter can master them. However, due to excessive bureaucracy, installing a gas boiler will be much more difficult than installing an electric water heater.

Therefore gas storage boiler loses this round outright.

Round three - safety

An electric boiler may receive an electric shock or explode due to a failure of the safety valve that releases superheated steam. The gas tank may catch fire or explode due to gas leakage. So, with the same bad luck, both owners of electrical appliances and owners of gas analogues will have problems.

Therefore, in the third round we have a clear draw. Moreover, a gas leak from the burner is just as unlikely as a “breakdown” of electricity to the tank body.

Round four – model prices

Electric boiler Vaillant VEH 200/6

with a tank volume of up to 200 liters and a thermal power of 8.5 kW.

Electric boiler Vaillant VEH 200-6

Costs almost 80,000 rubles.

Gas storage boiler Vaillant VGH 220/5 XZU

Vaillant VGH 220-5 XZU

With a tank volume of 220 liters and a heating power of 8.5 kW.

Costs 90 thousand rubles.

That is, taking into account a 10 percent excess of volume gas heater Compared to the electric analogue, the difference in price is almost imperceptible.

However, for small volumes the difference in price is still noticeable. For example, a 150-liter boiler

Ariston ABS PRO ECO PW 150V

Ariston ABS PRO ECO PW 150V

costs no more than 20 thousand rubles.

Ariston SGA 150 R

Ariston SGA 150 R

will cost 35 thousand rubles.

The difference in cost is obvious. However, almost all “small” boilers - up to 150 liters in volume - work not only as water heaters, but also as heating boilers.

Gas boiler Baxi NUVOLA 3 Comfort 280 Fi

Wall-mounted boiler BAXI NUVOLA-3 Comfort 280 i

not only heats a room of up to 280 square meters, but also stores a supply of water of up to 60 liters.

Taking into account this nuance, the price is 66 thousand rubles

no longer seems exorbitant, since for 40-50 thousand (the balance minus the cost of a 60-liter boiler) you can’t buy a decent boiler with a thermal power of up to 28 kW.

Consequently, after a stubborn struggle, having received unexpected reinforcement from manufacturers, the gas boiler snatches the lead from electric heaters.

Round five – cost of operation

It's time to consolidate your success. Gas water heaters go on the offensive and knock out electric water heaters! Judge for yourself: the already mentioned Ariston ABS PRO ECO PW 150V spends 4.5 hours to heat a 150-liter tank to 45 degrees Celsius, consuming 11.2 kW of electricity. That is, the cost of heating, taking into account 2015 tariffs, will be 55 rubles.

And the more expensive Ariston SGA 150 R spends just over an hour (71 minutes) to heat the same 150-liter tank to the same temperature, consuming no more than 720 grams of liquefied gas or 0.8 cubic meters main fuel. That is, the cost of heating will be only 25 rubles.

As a result, the Ariston SGA 150 R gas boiler simply knocks out the Ariston ABS PRO ECO PW 150V electric water heater, leveling out the difference in cost over 600 hours of operation.

Break: let's summarize

At the end of five rounds, the gas boiler leads the score. It's more effective electric heater(water heating speed reaches 20 liters per minute), but more difficult to install (official permission required gas service). But in terms of safety, neither model has any advantage. In terms of price, with a slight stretch - the trick of the manufacturers who combined a heating boiler and a boiler - the gas appliance wins.

In terms of operating costs, electric water heaters are a clear loser - a gas boiler costs half as much and heats water four times faster. As a result, gas storage heaters defeat their electric counterparts by an “economical” knockout in the fifth round after leading the overall standings throughout the “match.”

Storage gas water heater - floor-mounted, wall-mounted

Gas non-volatile storage water heater does not require connection to electricity. The ability to operate at low water and gas pressure, the device has no restrictions on the minimum water pressure, has low hydraulic resistance, the pressure at the point of water intake is almost equal to the pressure at the inlet. The ability to connect a recirculation line allows you to reduce the time of supplying hot water to remote water collection points. The capacitive design of the water heater (large heat exchange surface) reduces the process of scale formation, allowing preventative work long time operate the device. The presence of a flame is monitored by a thermocouple, which turns off the gas when the flame goes out. The device is adapted to work with low quality water.

• Non-volatile, does not require connection to electricity;
• Piezo ignition - simplifies ignition of the pilot burner without the use of matches;
• Ability to operate at low gas pressure;
• Has no restrictions on minimum water pressure;
• Has low hydraulic resistance;
• Increased heat exchange surface allows to reduce heating time;
• The magnesium anode provides protection for the container;
• Lime Fighter® technology uses inlet water turbulation to reduce scale deposits;
• The updated Honeywell automation and combustion control system provides an increased service life and greater accuracy in control (only in the “G61” 151 and 189 liter models);
• The LED indicator provides information about current work water heater and malfunctions (only in models “G61” 151 and 189 liters);
• Safety valve with thermostatic insert (10.5 bar; 98°C).
• Possibility of cascade connection of several water heaters;
• Possibility of connecting a recirculation line;
• Convenient water connection from above and from the side.
• Steel tank with multi-layer enamel coating;
• Magnesium anode;
• High density polyurethane foam insulation;
• Steel casing;
• Flue gas deflectors;
• Traction stabilizer;
• Gas valve with built-in DHW thermostat;
• Piezoelectric element with pilot burner;
• Stainless steel burner;
• Safety valve with thermostatic insert (10.5 bar; 98°C);
• Drain tap.

Among gas heating equipment, the famous South Korean manufacturer has long and successfully offered its line of products. Let's consider gas boilers Daewoo, let's study what their features are, how they are connected, what problems they have.

1. Two common models
2. Daewoo DGB-100MSC
3. Daewoo DGB-250MSС
4. Comparison of two models plus problems

Of course, like everything done under the Daewoo brand, boiler equipment this brand is also produced at top level. The following advanced technologies are used in the design of Daewoo units.

• enhanced, diverse emergency control system;
• power is regulated using infrared sensors;
• there is an electronic burner adjustment;
• applied various technologies to reduce operating noise;
• there is protection against wind blowing into the chimney;
• The gas supply is stabilized by a special valve.

All these advantages provide additional comfort to consumers and simplify the rules for operating Daewoo gas boilers. Among the units of the described Korean brand, the following families are common:

To finally make sure how high-quality, multifunctional and safe equipment Daewoo produces, we will analyze in detail two specific brands of boiler equipment.

Two common models

We selected for study two popular wall-mounted models with two heating circuits. That is, these devices are installed on the wall, they have two circuits - for heating and for hot water supply.

1. Daewoo DGB-100MSC with a power of about 11 kW, the prefix “DGB” denotes the full name of the corporation “Daewoo Gasboiler”.
2. Daewoo DGB-250MSC with a power of more than 25 kW.

Let's look at the intricacies of operating these two copies of the brand, and at the same time examine typical faults similar Daewoo gas double-circuit boilers. First of all, it should be noted that the models that we have selected are the most frequently sold among all modifications of the described Korean brand.

Daewoo DGB-100MSC

This Daewoo gas double-circuit boiler is mounted on the wall, it provides heating of hot water supply, its power is 11.6 kW, and the area of ​​​​the room that it can absorb with heat is 130 square meters. m.

Let's see what main qualities are inherent in him.

• high-speed heat exchanger for hot water supply of plate type;
• when the gas pressure decreases, the unit operates stably;
• built-in power supply protects equipment from voltage surges;
• there is a remote control remote control, liquid crystal display.

These advantages indicate that Daewoo equipment is truly multifunctional and comfortable to operate.

The detailed instructions for the described Daewoo gas boiler contain all the necessary operating information.

The main provisions of the instructions are as follows.

1. Installation is carried out in accordance with the recommendations and sketches.
2. Before starting operation, the heating system is filled with water.
3. During the first start, the air is gradually removed. If the coolant pressure drops with an increase in the temperature of the heating circuit, add water.
4. The display panel uses a symbol system.
5. The boiler is activated by the control panel.

There are also several innovations applied in this model.

1. U circulation pump dry rotor and magnetic coupling, which ensures its durability.
2. The gas burner is adjusted using a patented mechanism.

It is clear that all these advantages cannot but affect the price; the cost of such equipment is also not small, but we will talk about this later.

Daewoo DGB-250MSС

This is also a wall-mounted dual-circuit device with a closed chamber for gas combustion, the power here is higher - 29.1 kW.

Accordingly, a room can be heated over a larger area, namely up to 290 square meters. m.

The advantages of this device, in principle, repeat those inherent in the previous model.

1. There is also a built-in power supply.
2. The unit is also configured for reduced gas pressure.
3. The only thing that makes this brand of heat generator stand out is that it is extremely compact and very powerful.

The instructions for use for this Daewoo gas boiler essentially repeat the instructions for the previous model.

Here are the main features.

1. After filling the system with coolant, a test run is done.
2. The boiler is controlled remote control using buttons, indication is carried out by conventional icons.
3. Codes possible errors specified in the detailed manual.

These codes indicate typical faults gas boiler Daewoos in which gas combustion is most often blocked:

• problems with the smoke removal system;
• lack of water;
• pump failure.

Comparison of two models plus problems

Now let’s summarize the information received on two Daewoo units into the table below. Here she is.

From this table it is easy to understand that the cost of the described equipment is not so high when compared with the price of equipment from other famous brands, in particular, those of German or Italian origin.

Now let's talk about typical malfunctions Daewoo gas boilers.

Gas storage water heaters

What is more common and how to deal with it.
Most cases of contacting repairmen, as years of operation of this equipment have shown, are associated with an incorrect first start. Therefore, special attention should be paid to this stage during installation. It is necessary to follow every letter of the instructions supplied with the equipment.

Although there are few common breakdowns.

1. There are cases of failure of the circulation pump, but this is more often due to untimely cleaning of the heat exchangers.
2. Crashes electronic system controls are possible, but occur quite rarely, judging by the reviews.