Boiler "Zhitomir" - technical characteristics, owner reviews

Heating equipment of the Zhytomyr brand “Atem” is widely known in the countries of the former USSR. The plant's products are famous for their reliability, simplicity and affordable price tags. Let us highlight another important advantage - the manufacturer is as honest as possible with the buyer. The documentation for the Zhitomir solid fuel or gas boiler reflects the real operating parameters of the equipment, no overestimation of efficiency or other marketing techniques.

We decided to collect all the heat generators of the Atem model range in one publication and make a detailed review of each line of boilers. The task is to lay out the technical characteristics, identify the strengths and weaknesses of the units. At the end we will attach reviews from owners who use this equipment for heating private houses and apartments.

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.

Characteristics

Today, products represented by Zhitomir boilers are the most modern and in demand. To understand why this particular brand has received consumer recognition, it is necessary to consider the model range in more detail. Each individual piece of equipment has a huge advantage over similar devices from other manufacturers. There are disadvantages in Zhitomir boilers, as in any product, but the presence of advantages outweighs the significance, showing that the equipment has much more advantages.

Gas boilers "Zhitomir" have a number of advantages, due to which they are in high demand on the market.

• The heat exchanger of the device is steel. Thanks to this, the water receives maximum heat that is generated during the combustion of gas.
• The design of the burner is thought out to the smallest detail. It is this feature that helps to increase the productivity of the device, and the level of emission of harmful impurities is minimal.
• Imported automation of each boiler allows us to achieve the most suitable characteristics.

• Ease of device management. There are no unnecessary buttons or switches.
• The design of the equipment is developed according to the latest fashion. The boiler does not take up much space, and in appearance it looks like a small bedside table that fits into any environment.
• During the production process, each individual model undergoes several stages of international standard testing. And after completing all tests, he receives a quality certificate.

Many settings in the Zhytomyr boiler system allow you to choose the optimal and comfortable state for yourself. Special sensors, which the system is also equipped with, monitor the safety of the device and uninterrupted operation. Considering all the advantages described above, we can safely say that Zhitomir boilers are ideal for heating private houses and will do their job well in apartments and other rooms. It is worth noting that not only the beautiful design and ease of use attract consumers, but also the price issue.

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.

Specifics of the mechanism

The norms for the use of boilers allow us to say that the floor-standing device from Atem turns off automatically.

It works in the following cases:

• The pressure decreases and is less than 6.4 mbar.
• The flame goes out for unknown reasons.
• There is no draft in the chimney.
• The coolant is heated to maximum temperatures.

An automatic gas plug is responsible for heating. Its model meets the characteristics of the device:

• If the device has 7-16 kW of energy, then it has a SIT design.
• Model 710 Minisit plugs are installed in cases where the heat generator produces 22.5-31.5 kW.
• If the boiler has a throughput capacity of more than 40 kW, then an automatic gas model Sit 820 Nova is built into it.

The device is also equipped with a hot water circuit. The heat exchanger is immersed in a water jacket.

The first is made of copper and has a serpentine design. The temperature of the water is affected by the level of heating of the coolant placed in the tank.

In summer, the circuit operates on the principle of piping. The return work and feed in the middle contain a pipe in which there is a tap.

After the heating systems are turned off, the tap turns on. The heating mechanisms are disconnected by a second frame.

In summer, the operation of the water supply circuit is ensured by piping the Zhitomir 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 moves along a small oval. The whole process is shown in the diagram.

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).

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.

Clarification. All types of combination boilers are produced in a floor-standing version.

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.

Comment. When operating on coal and wood, the boiler produces less heat than on gas, which is noticeable in terms of efficiency. Example: the KS-G-016SN / AOTV-12 unit in the first case develops a power of 12 kW, in the second - 16 kW.

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.

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.

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.

User manual

Before starting to use the Zhytomyr equipment, it is necessary to carry out high-quality installation of the product and check the pipes, especially if the boiler is a double-circuit boiler.
Next, the first launch is made. And after that the boiler enters the standard operating process. According to the standard scheme, you need to turn on the device, light the wick, then adjust the heat supply. After these manipulations, you can change the settings to reduce heating or, conversely, increase it. At the end of the cold season, the boiler must be turned off for the warm period, since it is not needed, which will eliminate unnecessary waste of the device’s potential. In some cases, after a warm period during connection, it is not possible to light the boiler, the igniter goes out. This may be due to weakened draft, weak gas pressure, or a malfunction of the valve responsible for the gas supply.

It is very rare that the gas valve fails to start during use. The reasons for this may be broken contacts, poor quality of the pilot burner, or an incorrectly installed thermocouple. Troubleshooting is simple - you just need to check the contacts

It is necessary to pay attention to the height of the flame. It should be at least 2.5 cm. You can try to reinstall the thermocouple or replace it altogether

Then check and light the boiler the first time

You can try to reinstall the thermocouple or replace it altogether. Then check and light the boiler the first time.

As for the model range of Zhytomyr boilers, in general you can hear only positive reviews. Ideal heating and the ability to regulate the temperature allow you to feel comfortable throughout all the cold weather. A fairly simple mechanism for turning on and setting - just a few knobs and pointers that tell you what needs to be done.

In addition, Zhitomir boilers have a protection system against lack of draft in the chimney system, as well as protection against overheating of the device. In all cases, the gas supply is shut off, which is a big difference in the troubleshooting process. Otherwise, Zhytomyr gas boilers are a shining example of quality and reliability. They are in great demand on the world market. The technical characteristics of Zhitomir boilers allow connection to be made in almost any designated place. Boilers “Zhitomir” are, first of all, a concern with which you can forget about the costs of heating your home using electric radiators, as well as excellent quality at an affordable price.

A review of the Zhitomir gas boiler is in the next video.

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.

Circulation pump

The boiler circulation pump requires special attention during startup.

Air often accumulates in it, and its blades sometimes seem to get stuck (the boiler will display a corresponding error).

It is recommended to rotate the shaft manually before starting.

To do this, you need to remove the front panel of the housing, unscrew the central bolt on the pump and use a straight-bladed screwdriver to turn the shaft in the direction indicated by the arrow.

An air vent is installed above the pump. You need to pull the bright lid and let the air escape.

Read about the installation features of combined heating boilers in the following material.

Conclusion

At first, the system may make gurgling sounds, all because during startup it is impossible to bleed air down to the last atom. It will gradually be removed through the expansion tank valve. Periodically check the pressure on the pressure gauge - it should be within the operating range. Temperature adjustment and other boiler settings are described in the instructions for each model.

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.

Make your boiler electric with Atem Electroreserve

Now, when you buy an Atem gas or solid fuel boiler, you have the opportunity to make it electric at any time. The boilers provide a place for installing a heating element, which you can purchase in a store in your city. Atem boilers are compatible with heating elements, or others that correspond to the installation dimensions. Read more about installing the electric heating element in the instruction manual.

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.

Organizing a home heating system without gas or electricity

To select alternative heating options for a non-gasified electrified home, with a low power consumption limit of up to 5 kW, several effective heating sources can be offered. To heat a house, you will need to choose one of the heat supply schemes using the following modern technologies:

1. Long-burning boiler, with two heating circuits for heating and domestic hot water and a tank for indirect heating of hot water. Available and cheap solid fuel can be used as fuel for such a design: firewood and its waste, coal or anthracite and any other fuel product in the form of briquettes/pellets.
2. The boiler is a double-circuit boiler, powered by liquefied gas obtained from a cylinder or gas holder installation.
3. Gas convectors running on liquefied gas.
4. Double-circuit liquid fuel boiler: heating oil, diesel fuel or oil processing.
5. Renewable natural sources: wind power plants, solar collectors and various heat pumps.

Once a heating source has been selected, the home owner will need to carry out organizational measures to ensure that the circuit becomes operational.

The stages of organizing a heating system in a simplified form can be represented as follows:

1. Before heating a house without gas, they carry out a heating project and develop diagrams of in-house heating systems.
2. Obtaining approval from regulatory authorities to begin operating boiler equipment. In this case, these are approvals from the gas service for connecting to a gas tank or installing liquefied gas cylinders, distribution systems and water utilities.
3. Invitation to a specialized organization for installation and commissioning of the boiler and other boiler equipment.

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.

Varieties

Today, several types are involved in the production of Zhytomyr boilers - parapet (wall-mounted) and floor-mounted. In turn, floor products also have divisions into single-circuit and double-circuit.

Floor-standing

If a gas boiler is needed only for heating purposes, attention should be paid to single-circuit models. They are unpretentious, practical and economical. Equipping a single-circuit boiler “Zhitomir” primarily involves imported components

Thanks to them, the device can be turned on and off if necessary. And if there is a need, in addition to heating, to have hot water in direct access, you will need to choose from dual-circuit options

The equipment of the single-circuit boiler “Zhitomir” primarily involves imported components. Thanks to them, the device can be turned on and off if necessary. And if there is a need, in addition to heating, to have hot water in direct access, you will need to choose from dual-circuit options.

In terms of their technical characteristics, floor-standing boilers mostly have the following similarities:

• the maximum temperature limit is +90 degrees;
• efficiency is 92%;
• gas pressure – 635 Pa.

But when choosing a model you definitely like, you need to consider its specific characteristics and capabilities.

Wall mounted

The same separation as in floor-standing boilers is also present in wall-mounted boiler models. They can also be single-circuit or double-circuit. The efficiency of all devices is the same. The same applies to gas pressure.

But it’s still worth considering their characteristics in more detail:

• the power of parapet boilers must be no less than 5 kW and no more than 20 kW;
• the coolant in the device is no more than 17.5 liters;
• depending on the chosen model, natural gas consumption is considered; according to the standard - 0.56–1.67 cubic meters per hour;
• profitability due to imported automation.

For its part, the manufacturer provides a wide range of boilers to choose from, but the Zhitomir-3 KS-G-020 SN model is still in great demand. This device differs from its counterparts not only in terms of availability in terms of price, but also has clear technical data. The design of the device is designed in a minimalist style; the appearance of the boiler looks like a cabinet. It should only be placed on the floor. On the front of the model there is a small door behind which hides a button for turning on and adjusting the device settings. In the same part there is a control window, with the help of which you need to monitor the performance indicators of the boiler.

The basic package includes a housing, which also includes heat exchanger elements. On the outside, it is covered with heat-insulating material and a casing made of steel. The burners are presented in two pieces: one is the main one, and the second is the ignition one. The package includes a gas duct and an automatic gas valve, which is responsible for safety during operation.