Boiler "Zhitomir" - technical characteristics, owner reviews

General information

The modern gas heating boiler ATEM Zhytomyr has high performance and compact dimensions. The use of foreign automation allows us to achieve optimal performance.

The user has access to many settings, which allows him to maintain the desired temperature in the room. Sensors will ensure that everything works without interruption. Consumers love Zhytomyr boilers, and reviews emphasize the optimal price-quality ratio.

Advice! The cost of a Zhitomir boiler today is 12-45 thousand rubles. Moreover, products at the upper price range have high performance and are capable of heating large areas of premises, suitable for heating multi-storey private houses. For heating a small house or apartment, a modification in the middle price range, up to 20,000 rubles, is suitable.

The lineup

The company produces two types of gas heating boilers:

• floor,
• parapet.

Floor standing boilers

In turn, a floor heater is divided into:

1. single-circuit,
2. double-circuit.

A single-circuit floor-standing gas boiler only powers the heating system. It is extremely economical, thanks to the use of imported automation, which switches the system to energy saving mode as soon as the installation reaches the set temperature.

And at the moment when the temperature drops below a predetermined level, the single-circuit unit lights up at full strength. High-quality components allow you to withstand multiple on/off cycles throughout the heating season.

If you need to not only heat the premises, but also get hot water, you should buy not a single-circuit, but a double-circuit boiler Zhitomir. It has a higher cost, but can perform two options at the same time.

To connect the device, you will need to connect two additional pipes. In the product, the heating circuit operates independently of the hot water preparation circuit.

Advice! Choose a single-circuit boiler if you already have hot water supply. This will save money, because models with one circuit are much cheaper.

When choosing a floor-standing boiler in Zhytomyr, you should pay attention to the technical characteristics. So, all floor-standing models have:

• Efficiency 92%,
• maximum coolant temperature 90 °C,
• minimum operating gas pressure 635 Pa.

Moreover, each specific model has:

• power, ranging from 7 to 60 kW.
• the amount of coolant in the boiler ranges from 14 to 70 liters.
• natural gas is consumed in the range of 0.76 - 6.8 cubic meters per hour.
• If we consider a double-circuit floor-standing boiler, then its DHW capacity is in the range of 175 - 1400 l/s.

Wall boilers

Just like a floor-standing boiler, a hanging boiler can have one or two circuits. The entire model range has the same efficiency characteristics, maximum coolant temperature and minimum operating gas pressure - 90%, 90 °C, 635 Pa, respectively:

• The power range of wall-mounted boilers is from 5 to 15 kW.
• The amount of coolant in the boiler is from 5 to 17.5 liters.
• natural gas is consumed in the range of 0.56-1.67 cubic meters per hour, depending on the specific model.
• The suspended double-circuit boiler has a capacity for the hot water preparation circuit ranging from 160 to 345 l/h.

As you can see, the wall-hung and floor-mounted single-circuit boiler Zhitomir can operate in conditions where the gas in the mains has low pressure. The disadvantages of the products of the brand in question include the low permissible coolant pressure in the heat exchanger:

1. floor-standing versions have an indicator of up to two kgf/m2,
2. wall-mounted – up to zero point seven kgf/m2.

For comparison, foreign boiler models can operate with pressures of up to three kgf/m2. This indicates that Zhitomir gas units are more suitable for independent heating systems of a small house, the number of which is no more than two.

Range of gas parapet boilers

The parapet-type gas boiler “Zhytomyr” is an inexpensive device for organizing water heating of a small country house with an area of ​​up to 150 m². It successfully combines elements of turbocharged and atmospheric boilers - a closed combustion chamber and a coaxial chimney in the absence of a blower fan.

The movement of gases through the coaxial chimney of a parapet heat generator occurs naturally, without a fan or smoke exhauster

Principle of operation. The heat generator, suspended from the wall near the floor, burns natural or liquefied gas without pressurization. Combustion products are thrown out through an internal short pipe passing through the wall. Air enters the firebox through the external channel (outer pipe) naturally. New versions are equipped with 2 separate pipes - smoke and air.

The line of parapet models "Zhitomir-M" includes 5 single-circuit and 4 double-circuit boilers, designated by the abbreviation AOGV-SN and ADGV-SN, respectively. Thermal power of the devices is 5, 7, 10 and 15 kW. Let's reveal the design features of heaters:

• the material of the main heat exchanger is steel, the secondary heat exchanger for hot water supply is copper;
• combustion chamber – completely closed;
• burner - tubular type, safety automatic - gas valve SIT 630 made in Italy;
• ignition – piezoelectric, from a button on the valve;
• 4 fittings DN40 for connecting the heating system - two on each side of the housing.

The boiler comes complete with a gas-air unit (otherwise known as a coaxial pipe), a flexible pipe for connecting to the gas main, fasteners and an asbestos sealing cord. The cost of a single-circuit unit with a power of 5 kW (heated area - 50 m²) is 270 USD. e., double-circuit 15 kW - 475 USD. e.

New version of wall heat generator with separate pipes for air and flue gases

Reference. Up-to-date information on the pricing policy and offered models of heat generators can be found on the official resource at: shop.atem.ua.

Specifications

The Zhitomir-M parapet boiler has the following operational parameters:

• fuel efficiency (EF) – 90%;
• minimum inlet gas pressure – 6.4 mbar, maximum – 17.6 mbar;
• operating pressure in the heating system – 1.5 Bar, maximum permissible – 2 Bar;
• coolant temperature at the outlet of the heat exchanger – no more than 90 degrees;
• the amount of water in the boiler jacket is from 5 to 19 liters;
• maximum pressure from the cold water supply – 6 Bar;
• The dimensions of the largest device in the line are 360 ​​x 495 x 825 mm (LxWxH).

Floor-standing boilers "Zhytomyr-3"

The reliability of the stationary units of the model range has been tested by many years of practice. Heaters “Zhitomir-3” are among the most popular; they are recommended to be purchased by gas service technicians.

Explanation. Gas workers really “love” the floor-standing boiler models of the Zhytomyr brand. The design is simple and reliable, malfunctions occur extremely rarely, and accordingly, the technician has less work to do.

The line includes 18 devices - 9 single-circuit models KS-G-SN and 9 heat generators KS-GV-SN with an additional water heating heat exchanger. Main characteristics of boilers:

• range of covered powers - 7...60 kW, efficiency - 92%;
• the material of the main heat exchanger is carbon or stainless steel, the secondary coil is copper;
• burner – tubular micro-flare from Polidoro, combustion chamber – open type;
• there is a constantly burning igniter, which is ignited by a piezoelectric element button;
• operating coolant pressure – 1.5 Bar, maximum – 2 Bar, permissible pressure in the water circuit – 6 Bar;
• recommended temperature schedule - 60...80 °C, maximum - 90 degrees, at 95 °C the overheating sensor is triggered;
• removal of combustion products through a traditional chimney with natural draft.

Note. The KS-G-045SN and KS-GV-045SN units with a power of 45 kW are designed for higher coolant pressure: operating pressure - 2 Bar, maximum - 3 Bar.

Design Features

According to the requirements of the regulations, the Atem floor-standing boiler is equipped with an automatic safety system that interrupts the fuel supply to the igniter and the main burner based on four factors: a drop in gas pressure below 6.4 mbar, spontaneous extinguishing of the flame, lack of chimney draft and overheating of the coolant. The shutdown function is performed by an automatic gas valve, whose model depends on the performance of the unit:

1. 7…16 kW devices are equipped with 630 SIT automation.
2. Heat generators with a capacity of 22.5…31.5 kW are equipped with 710 MINISIT valves.
3. Boilers with a power of 40 kW and more are equipped with automatic gas blocks SIT 820 NOVA.

Reference. The latest series of Italian valves 820 NOVA is equipped with a connector for connecting weather sensors and room thermostats. You will find more information on the operation of gas boiler automation in our separate review.

The second important feature of domestic heaters is the design of the DHW circuit. The heat exchanger is a copper coil immersed in the water jacket of the apparatus. Therefore, the temperature of the water going to the hot water supply depends on the degree of heating of the coolant in the boiler tank.

In the summer, the operation of the water supply circuit is ensured by piping the boiler - a pipe jumper with a tap is placed between the supply and return. When the heating of the house is turned off, this tap opens, and the heating system is cut off by other fittings. The coolant begins to circulate in a small circle, as shown in the diagram.

For summer operation of the DHW circuit, the manufacturer suggests looping the supply with the return, maintaining the connection between the boiler and the expansion tank

Advantages and disadvantages

The main advantage of floor-mounted heat generators “Zhitomir-3” remains high reliability at low cost of equipment. A single-circuit boiler with a thermal power of 7 kW will cost approximately 300 USD. e., with a water circuit – 340 USD. e.

The remaining advantages of water heating devices look traditional for the Atem brand:

• simplicity of design and unpretentiousness in operation;
• non-volatile – the boiler does not require power supply;
• long service life;
• models with automatic SIT 820 NOVA can be connected with external control devices - thermostats and weather sensors.

Addition. The new generation of KS-G-SN models with a power of 10...30 kW is equipped with an Atem-Start lightweight ignition system. The start button is located on the front panel of the boiler.

The units are adapted to work in open-type gravity and pump heating systems. Use as part of a closed circuit with forced circulation is allowed, provided that the operating pressure of the coolant does not exceed 1.5 Bar (short-term - 2 Bar). Let us remind you: the KS-G-045SN modification can withstand 2 and 3 Bar, respectively.

The disadvantages are similar to those of parapet boilers, except for blowing the burner through a coaxial chimney. If the flue pipe is built correctly - the cross-section (diameter) and the height of the rise of the channel are maintained, then problems with draft will not arise.

Rules for filling the system with water before turning on the gas boiler

Before lighting a gas boiler and turning on the heating system, it is first filled with cold coolant, which, after heating, will circulate through the pipes and radiators. During the first launch, everything is carefully checked so that further operation is uninterrupted and the equipment does not require repairs.

The unit body has a special tap located near the pipe to supply coolant to the system. During the filling process, the pressure in the system is monitored thanks to the presence of sensors and pressure gauges. In modern boilers they are already installed and there is no need to purchase them additionally. When the device is filled with water, the mark on the sensor rises. When it reaches the 1.5-2 atmosphere mark, the water supply is shut off and thus completing the filling.

These pressure parameters can be changed as they depend on the manufacturer's requirements for the operating pressure in the heating system. But filling with cold water does not end there, since replenishment will be required after the structure is freed from air pockets.

Floating gas boilers "Atem"

Gas heating equipment of the Atem Zhytomyr enterprise have gained great popularity among interested sections of the population and are well known in neighboring countries. Inexpensive, reliable models are distinguished by simple technical equipment, and the number of complex elements is reduced to a minimum. The most complex part of a heating boiler is the automatic valve, but thanks to the high-quality workmanship of the Italian manufacturer, this element is as reliable as possible, so failures and breakdowns in automatic systems of heating equipment in Zhitomir practically do not occur.

How to start a gas boiler for the first time

What is the reason? Won't it be torn apart? The unit is not leveled correctly or the heating system is clogged. The device has nothing to do with it. A floor-standing boiler Zhitomir 3 Atem KS-GV SN 12.5 kW, Eurosit was installed, after 8 years of operation it stopped turning off when heated and began to work continuously, raising the temperature to over 80 degrees. You have a problem with the automation, that is, the thermostat does not work, you will have to change the automation completely. I turn on the new Zhitomir parapet boiler.

Everything is working. I turned it on in the evening, everything worked until night.

We woke up in the morning and the boiler had gone out. And already three times. Before this, they turned it on once, everything was fine, and then it got warmer, and they turned it off, and the second time there were such problems. There is a craving. He worked for at least exactly three hours.

You most likely have oxidation of the draft sensor; it does not see the contact and because of this it quickly goes out. You need to clean the connections until they are shiny and the boiler is working. It began to go out at low and medium throttle. From 1 to 5 it will work and the gas supply will be turned off. It works fine on 6 and 7. The second season has worked, the circulation pump is installed. It even happened that the igniter did not light up, cleaned the terminals, worked normally for about a day and began to turn off again. In principle, it’s already spring and I don’t want to call an unfamiliar gas worker.

Yes, maybe I can figure it out on my own. Can anyone tell me what the problem might be and its solution? The igniter flame - the root third is bluish, the middle and top are yellow, fluctuates quite strongly. In general, in the fall there was a strange symptom: if you turn on the igniter and immediately turn on the burner, the gas supply turns off after a minute or two. And if the igniter burns for five minutes, the gas supply does not turn off.

We had a similar situation. During assembly, the thermal breaker was not completely screwed into the magnetic valve. Apparently the contact between them was not initially the strongest, and over the two seasons of work the contact worsened. And apparently, there was not enough contact, but there was enough. We tightened it a little more and everything became normal. I had the following problem: the Zhitomir-M parapet gas boiler, installed last year, began to go out. The most interesting thing is that it goes out in position 2 and 1 in position 3 lights up without problems.

This happened just yesterday, before that everything was normal.

About the boiler

Chimney boilers that are characterized by very high operating efficiency combined with time-tested design reliability and an attractive price. Thanks to successful design solutions and many years of experience of engineers, Zhytomyr-3 boilers have long been the most popular series of boilers among buyers. During the production of the series, these boilers have already been chosen by more than 1,000,000 customers.

Malfunctions

Let's consider possible malfunctions of Zhitomir gas boilers that may appear during use, and options for solving them.

All problems with gas communications and the gas boiler valve must be repaired only by authorized specialists.

Disruption of water movement

If the circulation of water is difficult or there is no water at all in the heating system, the reason may lie in:

• insufficient amount of fluid in the system;
• presence of air in the heating system;
• water leakage from the heating system;
• significant scale deposits.

You can resolve this issue by taking the following steps:

1. Refill the heating system with water.
2. Release the air by filling the heating system with coolant from below.
3. Detect and repair fluid leaks.
4. Clean and flush the system.

Reduced heating efficiency and increased gas consumption

If such a problem occurs, the reason is most likely the following:

• the heating system is installed incorrectly;
• Too much scale has been deposited.

To get the system working, you need to:

1. Correctly install the heating system.
2. Clean and flush the boiler.

Condensation forms

If drops of water form and flow onto the main burner, then most likely the reason is the low temperature of the coolant. To eliminate this problem, you need to warm up the boiler.

The burner goes out

The Zhitomir gas boiler does not ignite, which means the possible reasons are:

• weak heating of the thermocouple;
• low gas pressure in the system;
• damage to the safety automatics or gas valve;
• loosening of the thermocouple.

This malfunction can only be resolved by calling a gas service specialist.

Cotton when igniting

If a pop is heard when the boiler is ignited, then most likely this indicates a poor fire connection between the ignition and main burners. Gas pressure is too low.

In this case, only a specialist will help.

Burner extinction

If the Zhitomir gas boiler goes out, both the main and pilot burners, then the reason is poor draft. How to fix this problem? Insulate the chimney and remove air suction.

These are the main reasons why malfunctions may occur with a domestic unit.

Currently, Atem Zhitomir gas boilers are sales leaders in their position. Excellent technical parameters, excellent quality and budget price make the brand’s products very popular. Having decided to purchase a Zhytomyr unit, the buyer will be satisfied with the purchase. Because such equipment will make it possible to organize reliable and stable heating of the house.

Design Features

The main elements of the Zhitomir boiler are:

• a housing in which the main components and equipment are installed;
• gas burner unit located in the firebox. Here gas combustion occurs and heat flow is released;
• recuperative heat exchanger, in which heat exchange occurs between combustion products and coolant;
• gas exhaust system, its responsibilities include removing combustion products outside the boiler and releasing them into the chimney.

Construction of the Zhitomir boiler In order to increase the efficiency of heat transfer, the gas boiler Atem Zhitomir 3 has the following design features.

1. The heat exchanger pipes made of heat-resistant steel have a rectangular cross-section; this device allows you to increase the contact area of ​​the flue gas and the coolant.
2. The counter movement of coolants was organized, this solution made it possible to increase the efficiency of the heat exchange device to 92%;
3. To increase the area of ​​interaction between combustion products and the coolant, as well as to prevent the accumulation of soot on the surface of the steel pipes of the ATEM boiler heat exchanger, turbulators are installed. Soot accumulates on the lower surface of the turbolizers, while the pipe walls remain clean. To remove soot, you need to periodically remove the turbolizers and clean them of soot.
4. Gas double-circuit turbocharged boilers in Zhitomir have a coil of copper pipelines around the heat exchange heating pipes.

Double-circuit gas unit Zhytomyr Atem To organize a stable gas combustion process, a POLIDORO gas burner device is used. Its distinctive feature is a single-stage atmospheric burner. The edges of the burners themselves are made of heat-resistant steel, which allows you to maintain the combustion mode at different gas supplies to the firebox. Even at low gas consumption, the heating of the edges is sufficient to maintain stable combustion.

Turbulent heat exchanger "Atem" - maximum heat

The process of transferring heat from gas combustion to the heating system occurs precisely in the boiler heat exchanger, so how it copes with this task directly affects the gas consumption and efficiency of the boiler. In boilers of an outdated design, developed when no one was thinking about saving yet, the heat exchangers are built in such a way that half of the heat simply flies out into the chimney, practically without lingering in the boiler. Unlike boilers of outdated design, the heat exchanger of the Atem boiler is built in such a way as to ensure maximum operating efficiency combined with reduced gas consumption. The efficiency of Zhytomyr-3 boilers reaches 94%, which is a very high indicator belonging to the premium segment boilers.

The design of the Atem heat exchanger provides two operating modes: calm and turbulent. In “quiet” mode, with relatively warm weather outside, hot gases smoothly pass all the way through the heat exchanger and manage to transfer heat to the heating system. When the temperature outside begins to drop below, the draft in the chimney increases significantly, which leads to an increase in the rate of extraction of hot flue gases and then the heat exchanger goes into a “turbulent” operating mode, in which the hot gases begin to actively mix, ensuring efficient heat transfer to the heating system. While in boilers with a conventional heat exchanger, as the draft increases, the efficiency can drop sharply, the efficiency of the Atem boiler with a turbulent heat exchanger remains very high in any operating mode.

How much does a gas boiler cost in Zhytomyr?

If you look at the reviews of the Zhitomir gas boiler, it becomes obvious that many users are attracted by the optimal combination of quality and cost. At the moment, the price of the Zhitomir boiler is in the range from 12,000 to 45,000 rubles. And the higher the cost, the correspondingly higher the performance, which means the equipment is able to heat a larger area. The product of this company is ideal for heating private multi-storey residential premises. If you need to heat a small house, then a boiler will be sufficient, the cost of which is up to 20,000 rubles. Thus, prices for gas boilers in Zhytomyr are quite reasonable.

Solid fuel units

In recent years, the Zhytomyr plant has mastered the production of boilers operating on solid fuel. There are 2 lines of heat generators available for the buyer to choose from:

1. Classic heaters of the AOTV and AKTV series, designed for burning coal, anthracite and firewood.
2. Pure wood-burning long-burning boilers “Zhitomir-D”.

The first line includes 18 models with a heat output of 12...25 kW with a steel fire-tube heat exchanger. The AKTV series is equipped with a cast iron hob, while the AOTV-V modifications are equipped with a copper coil that heats water for household needs.

Let us list the features and operating parameters of traditional coal boilers:

• combustion of fuel and emission of flue gases occurs due to natural draft in the outlet channel;
• the air supply and combustion intensity are adjusted manually with a special screw on the ash pan damper or with an automatic draft regulator on a chain (optional);
• the secondary copper DHW coil is located in the boiler tank;
• the manufacturer declares an absolutely real efficiency indicator - 78%;
• operating coolant pressure – 1.5 Bar, in versions with a round body – 1 Bar;
• the weight of the device is from 88 to 208 kg, the volume of the fuel chamber is 44–69 liters, depending on the power of the specific model;
• burning duration of 1 load of anthracite – 8 hours, firewood – 6 hours;
• The highest permissible supply coolant temperature is 90 °C.

Note. The heat generator comes with a poker and a scoop for scooping and cleaning the ash chamber.

In the operating instructions, the manufacturer directly states: solid fuel units are designed to operate in heating networks with natural circulation of water and an open expansion tank. In fact, adding a circulation pump is quite acceptable provided that the coolant pressure does not rise above 1.5 Bar.

The circulation pump in the gravity system is placed on the bypass

In closed heating systems, TT boilers must be used with a buffer tank (heat accumulator). Otherwise, in case of overheating, the pressure in the pipeline network will reach 3 bar, which is why the water jacket of the unit may swell and crack. The warning equally applies to long-cycle heat generators “Zhitomir-D”, whose characteristics are presented below:

• the line includes 3 thermal units with a capacity of 12, 16 and 20 kW, the main fuel is wood;
• the minimum duration of work from 1 full bookmark is 8 hours;
• the firebox volume is increased to 140, 195 and 250 liters, respectively;
• boiler tank capacity – 78 l;
• unit weight – 200, 250 and 290 kg;
• other parameters are identical to heaters of the AOTV series.

Important point. The manufacturer strongly recommends using long-burning boilers in conjunction with an accumulating buffer tank that can hold 0.35–1 m³ of coolant.

The long-burning boiler "Zhitomir-D" has an enlarged firebox, which makes it high

Positive and negative aspects of operation

In terms of ease of use and reliability, Atem TT boilers differ little from other heat generators in the budget segment:

• the heat source operates without electricity;
• combustion duration and efficiency strongly depend on the quality of the fuel (wood, coal) and operating mode;
• cleaning the firebox and ash pan is not difficult; access to the fire tubes is through the front door;
• If the operating rules are followed and there is no overheating, the device will last 10-15 years;
• you can cook food on AKTV series boilers;
• burning wood is a priori more economical than using other energy sources (excluding natural gas in the Russian Federation).

The most important advantage of Zhitomir-D heaters is the large volume of the fuel chamber, which determines the combustion duration. It is very difficult to find boilers of similar capacity among equipment from other brands. The real competitor is the Lithuanian Stropuva 20 kW with a firebox volume of 260 liters, which is significantly more expensive.

For piping a unit with a large firebox, the manufacturer recommends a classic scheme with a buffer tank (heat accumulator)

There is no point in listing the disadvantages inherent in all wood and coal boilers. Let us note the specific disadvantages of Zhytomyr devices:

1. The low threshold of the maximum coolant pressure does not allow the TT boiler to be safely operated as part of a closed heating system, where the water pressure can reach 3 Bar.
2. According to the manufacturer's recommendations, the temperature in the return pipeline should not fall below 45 degrees, otherwise condensation will form in the firebox. With natural circulation, it is unrealistic to use a classic piping scheme with a bypass and a three-way valve that protects against cold return.
3. Manual air supply control does not allow you to implement the optimal operating mode and maintain the desired temperature. The draft regulator only partially solves the problem. Request for the manufacturer: equip 2-3 models with an automation unit and turbocharging.

Combined models

In addition to traditional heating equipment, it produces 3 combined series of boilers:

1. Electric gas heat generators KS-G-SN / KE with a heat output of 10-12 kW.
2. Units "Zhytomyr-9" burning coal and natural gas. Designation - KS-G-SN / AOTV, power - 10, 12 and 15 kW.
3. Heating and hot water installation “two in one” KS-G-SN, otherwise – “Zhitomir-10”. The range of models covers the range of 7…30 kW.

The line of gas-electric boilers is built on the basis of Zhytomyr-3 units and does not differ in appearance from conventional floor-standing units. The design is complemented by a control unit and an electric heater placed inside the water jacket. 2 types of heating elements are installed - with a power of 4.5 and 9 kW. Important feature: both heating methods can be turned on one by one or simultaneously.

Electric-gas (left) and coal-gas (right) boiler

The coal-gas heat generator “Zhytomyr-9” has the following parameters:

• on the left side of the body there is a firebox with a volume of 47 or 70 liters for storing anthracite or firewood;
• to the right of the solid fuel chamber there is a gas firebox with a Polidoro burner and an SIT 630 automation unit, a common heat exchanger, and separate smoke exhausts;
• efficiency on gas – 92%, solid fuel – 78%, operating water pressure – 1 Bar (Max 1.5 Bar);
• work in a closed system is allowed, condition - installation of a safety group with a 1.5 bar safety valve;
• duration of 1 coal combustion cycle – 6…8 hours;
• There are modifications with a DHW water circuit.

The operating algorithm is simple: while the coolant is heated by coal, the gas burner does not ignite. When the sensor detects a drop in temperature, the gas supply will open and the right side of the heat generator will start working. The main thing is that the pilot light is lit.

Watch this video on YouTube

The gas installation “Zhytomyr-10” consists of two separate sections - a boiler furnace and an instantaneous water heater. Burners, safety devices and heat exchangers are completely separated. In fact, the gas water heater and the boiler are combined in one housing. The goal is to increase water consumption for hot water supply to a comfortable level without compromising heating efficiency.