Technical characteristics and operating instructions for Ochag gas boilers + owner reviews

The use of gas boilers for heating private houses or apartments is becoming common.

Homeowners do not want to indulge the appetites of the owners of resource companies, who are constantly increasing housing and communal services tariffs.

Some villages are located in remote areas, their networks are not able to provide new subscribers.

These reasons have caused an increased demand for heating equipment, which is represented not only by European, but also by domestic manufacturers.

Consider gas boilers from Ochag.

Gas boilers from Ochag

, which is the owner of the Ochag brand, is located in Ulyanovsk. The beginning of its activities is considered to be 1993.

Today the company produces a wide range of heating equipment and individual components for it of its own design . There are many standard sizes and designs of gas boilers in production, capable of heating rooms from 70 to 1000 V. m.

The company carries out its activities based on the principles of simplicity, reliability, and stability of its equipment. The main advantage of Ochag boilers is their low cost, which makes them preferable and accessible to the mass buyer.

At the same time, the functionality and quality of the boilers are at a high level, which confirms the high demand and positive user ratings.

The boilers are non-volatile, which for the Russian user is a guarantee of reliability and continuous operation of the heating system.

Designations

When designating heating devices, a letter abbreviation is used. Each letter contains certain information:

• K – boiler.
• G – gas burner equipment is included.
• T – can be used as solid fuel.
• C – steel.
• M – installation of heating elements and an expanded firebox is provided.
• B – there is a water heater.

Knowing the meanings of the letters, the user can decipher the basic information about the proposed options using the abbreviation.

Kinds

The Ochag company produces different structural types of boilers:

• Floor-standing . They do not require any special installation as they can be placed directly on the floor. This expands installation options compared to wall-mounted models.
• Wall mounted . They require hanging installation on strong, preferably load-bearing walls. Temporary or plasterboard partitions are not suitable for this. The specifics of the installation require reducing the weight and reducing the size of the boiler, which affects power and performance.
• Parapet . They can be used both as part of a heating circuit and as an independent heat source.

By functionality:

• Single-circuit . Designed only to supply the heating circuit with hot coolant.
• Dual-circuit . Capable of simultaneous heating of coolant and preparation of hot water (DHW) for domestic needs.

By type of combustion chamber:

• Atmospheric (open) . Smoke removal occurs through a common house chimney using a stove-type draft, and combustion air is taken directly from the room.
• Turbocharged (closed) . Smoke removal and air supply are carried out by a special turbocharging fan. Possible only on energy-dependent models, but independent ones can also be modified using an external turbo nozzle.

There are many design options for Ochag boilers; the user can choose the most suitable option for his or her purposes.

Device

Their feature and advantage is the ability to adapt to any heating system. The user can:

• reinstall the front door depending on the need - on the right or left;
• supply the coolant from a convenient side - from behind or from the side, thanks to two return lines.

Consists of the following components:

• housings;
• automation;
• heat exchanger;
• second circuit (provided that the boiler is double-circuit);
• security systems.

Design in three parts:

• The lower part contains a combustion chamber, which is closed from the side and back by a water jacket. Above the firebox is a heat exchanger. Thanks to the flame tubes of the latter, efficient heat transfer and heat exchange between exhaust gases and water is ensured.
• The upper part contains a smoke eliminator and a built-in draft stabilizer.
• The middle part has a partition that ensures stable operation regardless of the ambient temperature.

The tandem of a smoke eliminator and a heat exchanger makes the boiler intellectually self-sufficient - it can function without any user intervention, without the need for manual adjustments. Stability of operation during traction instability is ensured by the stabilizer rod.

In the firebox there is a burner manufactured by ServiceGaz. Components - front panel, burner pipes, safety sensors - flame and draft, SABK AT control unit. Under the pipes there is a grille damper that supplies secondary air to the burner.

Important! Installation of the device indoors should be carried out with free access of air through the bottom of the device to the burner pipes.

Series and models

The Ochag company produces several model lines:

• Premium . The series is represented by single- and double-circuit floor-standing models AOGV and AKGV with a power from 8 to 29 kW. There are models with different types of automation - Italian SIT or the company’s own development.
• Standard . A series of floor-standing single- and double-circuit gas boilers. The power of the models is in the range of 7-20 kW. EUROSIT or SABK-AT automation was used.

The most common models are KSG 7, 10 and 15.

They have a power of 7, 10 and 15 kW, respectively, which makes it possible to provide thermal energy to rooms with an area of ​​70, 100 and 150 m2, which allows heating private houses of the most common sizes.

These are non-volatile floor-standing boilers, designed in a modern compact style and fit perfectly into the interior of any room . There is a possibility of conversion to liquefied gas.

A durable stainless steel burner is used.

IMPORTANT!

All models of Ochag boilers are manufactured in accordance with the requirements of the European standard ISO 9001-2011.

Advantages of boilers from ServiceGaz

Automation makes using boilers from the Ulyanovsk plant comfortable. Heat consumers completely shift the task of maintaining a given mode to the electronics. Advantages of all modifications of “Hearth”:

• Economical gas consumption. The developers have included a stabilizing device in the design to equalize fuel pressure. Thanks to the stabilizer, gas consumption is reduced by 30%.
• Environmentally friendly. Minimal emissions of harmful substances. In this regard, the equipment from ServiceGaz is not inferior to its European counterparts, which is quite unusual for domestic gas equipment.
• Precision temperature control.
• Three levels of security:

— protection against unexpected flame extinction in the burner;

— shutdown in the absence of traction;

— protection against lack of gas in the system.

• Steel heat exchanger. High efficiency.
• Simple but stylish design. Fits well into modern interiors, does not look like a foreign body, bulky or ugly.
• The design uses innovative technologies. High technical equipment.
• Low price. Simple and cheap maintenance.
• No additional energy sources are needed.
• High quality build. Multi-level quality control.
• Adaptation to domestic gas supply conditions.
• Italian automation EUROSIT.
• Compactness.
• Temperature adjustment.
• Remote control system. Can be controlled using a mobile phone. An electric horn and the ability to connect to a “smart home” system are also provided.
• The package includes a passport and instructions.

Specifications

Let's consider the parameters of gas boilers Hearth:

How to choose?

Options for the material of manufacture of the heat exchanger - the container where the coolant is heated:

• Steel. Good ductility, minimizing the likelihood of cracks due to thermal stress. Used in budget models. The service life is short due to susceptibility to corrosion.
• Cast iron. Heavy weight. They cost more than steel ones. Minus - they react to temperature changes. They don't rust - a plus. They serve for about half a century.
• Copper. They weigh little. Corrosion resistant. They are usually found in wall-mounted versions.

Advantages and disadvantages

The advantages include:

• Durability, reliability, stable operation of boilers.
• A wide selection of models allows you to obtain the optimal design and power of the boiler.
• The energy independence of the units ensures uninterrupted operation of the heating system in all situations.
• High performance boilers.
• Simplicity of design, ease of management and maintenance.
• Low fuel consumption.
• Attractive appearance, compact size.
• Low price.

The disadvantages of Ochag boilers are::

• Difficulty igniting.
• The need to ensure a slope of the system to ensure coolant circulation.
• For more stable operation, the use of external devices is required - a circulation pump and a turbo nozzle.

For non-volatile boilers, these disadvantages are quite typical and are, rather, design features.

Boiler Ochag Premium

Consider the Premium series AOGV and AKGV. This line has a power from 10 to 35 kW, and serves as a heating device for a residential building up to 300 square meters. The devices are characterized by high performance and reliability. The manufacturer provides for the equipment to operate on natural or liquefied gas. In case of planned connection to a liquefied gas cylinder, it will be necessary to purchase an additional set of nozzles with subsequent adjustment of the equipment.

Specifications

Operation and setup

Operation of gas boilers Hearth occurs practically without human intervention, in automatic mode.

The owner is only required to:

• Filling and draining water from the system.
• Switching the boiler to summer/winter mode.
• Periodically clean the housing from dust and dirt.

The operating mode is configured during installation and initial startup. Boilers are sold already configured and adjusted .

At startup, only adjustments are made to the factory settings for the most efficient operation under the given conditions.

The setup must be performed by a specialist from the service center with the appropriate approval and qualifications.

Any independent intervention in the boiler design automatically terminates the warranty agreement . In addition, an inexperienced user with his actions can permanently damage the boiler.

Gas boiler Hearth

The gas boiler Ochag KGS is part of a wide range of products. The Russian manufacturer produces gas burners, control units and gas burners. The Ochag KGS boiler is the result of the implementation of innovative strategies combined with the technical experience accumulated by the largest specialized plant over many years. Just imagine, 63 types of boilers this company can offer!

Don’t be alarmed, our review today will only cover the standard and premium versions of boiler equipment from the Ulyanovsk plant:

Boiler Hearth standard

Specifications

The gas boiler Ochag KSG is operated in automatic mode. Maintains the temperature of the coolant in the heating unit at the same level set by the consumer. Provides multi-level protection in case of emergency situations. In particular, the sensor system monitors the flame attenuation on the ignition burner and monitors the occurrence of a lack of draft situation - in each case, the gas supply is immediately blocked.

Boiler Hearth Advantages

• Laconic design;
• High efficiency up to 92%;
• Gas blocks of own design of the ServiceGas concern;
• Completely non-volatile. There is no need to connect to the electrical network;
• Possibility of conversion for further operation on liquefied gas;
• Stable operation of the device in case of low gas pressure;
• Heat-resistant stainless steel burner.
• The gas pressure and draft stabilizer is built into the Hearth boiler;
• Regular maintenance using easily removable turbulators in gas passage channels adds ease of operation;
• Easy installation with a choice of one of two gas connection options.
• Thermocouples serve as additional protection against operational breakdowns;
• Service maintenance due to the special mounting of the smoke collector does not interfere with convenient work with the flue part;
• Small pipe diameters = 1.5 inches contribute to reducing financial installation costs;
• Service life of at least 15 years;
• Warranty period from the manufacturer is 2 years.

The floor-standing gas boiler Hearth KSGV serves as a heat supply device for rooms with an area of ​​up to 160 m2, taking into account that the ceiling height does not exceed 2.7 m. Higher ceilings will most likely require a more accurate calculation of heating equipment. The two-circuit model provides the consumer with heat in combination with hot water supply, as indicated by the “B” index.

Explanation of the abbreviation KSGV S -12.5 AT

The letter designations that the Ochag boiler has are intuitive and not difficult to decipher: “K” – boiler “C” – steel “G” – gas “B” – possibility of supplying hot water (a water heater coil is installed) “12.5” – boiler power in kilowatts “A” – a – possibility of operation as a solid fuel “E” – EUROSIT automation “C” – SABK-AT automation

The device uses a gas pressure stabilizer designed to regulate the network pressure and ensure a uniform and stable flame on the main burners without changing thermal performance. A new heat-resistant stainless steel burner of atmospheric type is used. It is installed at the bottom of the heat exchanger, maintaining a uniform thermal zone in the combustion unit. The design has a uniform placement and prevents zonal overheating of the heat exchanger and its failure.

The built-in draft stabilizer balances the pressure at the entrance to the ejector of the main burners and at the exit from the slot grooves. This ensures constant discharge and stable combustion of the gas-air mixture in the firebox without additional regulation.

Boiler Ochag Premium

Consider the Premium series AOGV and AKGV. This line has a power from 10 to 35 kW, and serves as a heating device for a residential building up to 300 square meters. The devices are characterized by high performance and reliability. The manufacturer provides for the equipment to operate on natural or liquefied gas. In case of planned connection to a liquefied gas cylinder, it will be necessary to purchase an additional set of nozzles with subsequent adjustment of the equipment.

Specifications

Boiler Hearth device:

Structurally, the Hearth boiler is designed in such a way that it can be integrated into any heating system. The front door can be adjusted according to need and opens either on the left or right side. Two return lines, on the side and behind, make it possible to supply coolant from a convenient installation side.

The Hearth boiler consists of:

• Boiler body
• Automatic control
• Heat exchanger
• Second circuit (if the boiler is double-circuit)
• Safety system

In the lower part of the body, there is a combustion chamber, closed on the sides and rear by sections of the water jacket. A heat exchanger is located above the combustion chamber. High efficiency of heat transfer and heat exchange between flue gases and coolant is achieved due to the developed convective part of the heat exchanger, consisting of “flame” pipes.

At the top of the heat exchanger there is a smoke collector with a built-in draft stabilizer. In the front part of the smoke collector there is a draft sensor, in the upper part of the smoke collector there is a boiler outlet pipe. When installing a boiler into a chimney, it is necessary to coordinate the diameter of the outlet pipe with the cross-section of the chimney. The technical parameters of the chimney must correspond to the technical parameters specified in the operating manual.

In the middle part of the smoke collector, there is a partition plate to ensure stable operation of the device regardless of weather conditions. The heat exchanger, complete with a smoke collector, ensures efficient operation of the boiler without consumer intervention and without requiring manual adjustments. The stabilizer draft contributes to stable operation of the boiler during unstable draft.

A gas burner device manufactured in Russia by the Service Gas company is installed in the combustion chamber of the apparatus. It consists of a front panel, burner pipes, safety sensors (flame sensor and draft sensor), and the SABC AT control unit.

An easily removable distribution grid is mounted below the burner pipes. Designed to supply secondary air for combustion. It is very important when installing the Hearth boiler in a room to ensure free access of air through the lower part of the boiler through the distribution grid to the burner pipes.

The boiler must be installed with clearance at the height of the legs relative to the floor. The Hearth boiler is connected to the gas main on both the left and right sides. This can be done by the design of the SABC AT block. A temperature sensor is installed on the front panel, which indicates the room temperature.

How to light a boiler?

In order to ignite the Hearth boiler, you need to turn the control knob clockwise until the point is opposite the pointer. Then press and hold the start button. Press the piezo ignition button until you hear a characteristic click. At this time, the igniter lights. We continue to hold the start button pressed while the thermocouple heats up. The gas block operates automatically on the igniter. Next, turn the knob counterclockwise to the required temperature.

The Hearth boiler achieves high efficiency due to efficient combustion of fuel and high heat transfer from flue gases through “flame” pipes to the coolant and a developed firebox. The manufacturer guarantees a service life of at least 15 years. Factory warranty for the product is 24 months.

Watch a video on how to light a gas boiler with Eurosit630 automation

How to light a boiler

The procedure for igniting a gas boiler with automatic SABK-AT:

1. Open the gas tap.
2. Place the gas block handle in the “Ignition” position.
3. Press the “Start” button, hold it for about 10 seconds, then press the piezo ignition button 2-3 times until it clicks (ignition is possible through the viewing window using a burning match).
4. Hold the “Start” button for another 20-30 seconds to warm up the thermocouple. The gas valve can then be held open by a magnetic plug.
5. Turn the gas block knob to position 5 and make sure the burner flame is stable.
6. Set the desired temperature on the gas block.

To ignite the burner of boilers with automatic EUROSIT, the same steps are performed, only in step 5 the handle must be turned to position 7.

Download instructions

Download instructions for the gas boiler Ochag.

Model overview

If communications are connected to your home, you can always provide it with heat and hot water. More than 50% of boilers installed by domestic consumers are gas. Among them, ServiceGaz products are not the least important.

KSG-7AT

If you are looking for the cheapest option, pay attention to the non-volatile single-circuit device KSG-7AT. Its estimated cost is 10,600 rubles. Manufacturing material – steel. Floor-standing option Simple and convenient operation. Saves fuel. Capable of heating 80 square meters. Specifications:

• Maximum power - 7 kW.
• High efficiency – 85%.
• Water pressure – 0.1 MPa.

Stable operation even at the lowest pressure in the gas pipeline. Equipped with a gas block. There is a built-in pressure and draft stabilizer. Compact heat exchanger made of steel. Burner material is heat-resistant stainless steel. Convenient to maintain - the lining can be easily removed. Gas connection - on either side. There is a device that collects condensate.

According to users, the model has excellent characteristics. If you replace the burner nozzles, you can use liquefied gas as fuel.

KNG 24

Approximate price 25,000 rubles. Dual-circuit. Wall. Compact device with stylish design. The latest technical advances have been implemented. Absolutely silent operation - can be installed directly in the room, it will not disturb the residents in any way. The front panel has an LCD screen to display current settings. The boiler can be used for heating rooms equipped with a water heating system and for heating water. Technical specifications:

• Efficiency – 90%
• Can heat rooms with a total area of ​​220 square meters.
• The maximum heating power is 4.6-24 kW.
• There is automatic ignition.
• Gas consumption - 2.6 m3/h.

You can connect a heated floor. Closed combustion chamber type. Capable of operating on natural or liquefied gas. There are several stages of automatic protection. Weighs 36 kg.

KSG-11

Purpose – heat supply of premises for various purposes. Design Features:

• Convenient installation - gas can be connected from any side.
• Floor.
• The door can be reinstalled on the user-friendly side.
• Condensate collection device.
• Steel heat exchanger.
• Thermal insulation – 30 mm.
• Combustion type: low flare.
• Quiet operation.
• It is possible to use the EUROSIT 630 or SABC-AT control unit.

Technical specifications:

• Heating capacity 11 kW.
• Heating area – 125 sq. m.
• Efficiency – 90%.
• Gas consumption – 1.34 m3/h.
• Weight 48 kg.

KSTG-16

Combined single-circuit boiler with a maximum heating power of 16 kW. Can run on coal or gas. Designed for heating 160 sq. m. Floor installation. Without auto-ignition and flame modulation. Efficiency – 74%.

KSG-10 AT

Floor installation. heating capacity 10 kW. Heats an area up to 100 square meters. m. Fuel consumption - 1.11 m3/h. Price – 11,000 rubles. It is possible, by replacing the burner jets, to burn with liquefied gas - 0.88 kg/h. Consumers note the compactness of the device, its dimensions are 25x47x75 cm. Weight is 48 kg. Tank capacity – 18 liters.

KSG-7 E

Floor. Single-circuit. It features stable operation at low pressure in gas supply pipes. Approximate price – 11,900 rubles. Efficiency 85%. Consumers are attracted by compactness, efficiency and stylish design. Heats up to 80 sq. m. Weighs 37 kg. Open combustion chamber. No auto-ignition. There is no flame modulation. Budget version with a limited set of functions.

Parapet modifications

Their distinctive feature is the absence of a chimney. Smoke removal is carried out through a pipe supplied in the kit. Installation – wall. A hole is made in the walls in advance - the chimney pipe is inserted into it. The heater can be mounted on a wall facing the street. Two modifications of the parapet type are available:

• KSGZ - with one circuit;
• KSGZV - with two circuits.

The body is thermally insulated with mineral wool and can be easily removed to access parts of the heater that need cleaning. 89% efficiency. The heat exchanger is protected from salts and scale.

Why does a gas boiler go out?

The extinction of a gas boiler flame can be caused by external or internal reasons.

External reasons include:

• The occurrence of reverse thrust . The most difficult case, practically impossible to eliminate by conventional means. Sometimes eliminating drafts and opening or closing some doors or windows helps.
• Strong gust of wind outside . Cases of flames being blown out by the wind are frequent; they are the result of an unsuccessfully located chimney or low height above the roof surface.
• Drafts in the room . This situation is completely solvable, the main thing is to determine the source of the draft and close it.

Internal problems may be:

• Stopping the gas supply to the mains.
• Gas valve failure, problems with gas equipment.
• Burner nozzles are clogged with soot and combustion products.

If such problems occur, you should call the gas service and clarify the reasons for the lack of gas. The fuel supply valve must be closed before doing this.

Call a specialist from the service center and entrust him with the repair of gas equipment.

It is prohibited to try to repair the gas block yourself; this can cause very dangerous and even fatal consequences.

Basic faults

The main malfunctions of gas boilers Hearth are problems with the burner - weak flame, extinction after a few seconds of burning, frequent flame failures for unknown reasons.

There can be many reasons for the malfunction of gas equipment; to eliminate possible problems, you need knowledge of the design and operating features of the equipment.

All work must be carried out by service technicians who are certified to work with gas equipment.

The only possible independent procedure may be to clean the burner nozzles from soot.

Boiler Hearth Advantages

• Laconic design;
• High efficiency up to 92%;
• Gas blocks of own design of the ServiceGas concern;
• Completely non-volatile. There is no need to connect to the electrical network;
• Possibility of conversion for further operation on liquefied gas;
• Stable operation of the device in case of low gas pressure;
• Heat-resistant stainless steel burner.
• The gas pressure and draft stabilizer is built into the Hearth boiler;
• Regular maintenance using easily removable turbulators in gas passage channels adds ease of operation;
• Easy installation with a choice of one of two gas connection options.
• Thermocouples serve as additional protection against operational breakdowns;
• Service maintenance due to the special mounting of the smoke collector does not interfere with convenient work with the flue part;
• Small pipe diameters = 1.5 inches contribute to reducing financial installation costs;
• Service life of at least 15 years;
• Warranty period from the manufacturer is 2 years.

The floor-standing gas boiler Hearth KSGV serves as a heat supply device for rooms with an area of ​​up to 160 m2, taking into account that the ceiling height does not exceed 2.7 m. Higher ceilings will most likely require a more accurate calculation of heating equipment. The two-circuit model provides the consumer with heat in combination with hot water supply, as indicated by the “B” index.

Explanation of the abbreviation KSGV S -12.5 AT

The letter designations that the Ochag boiler has are intuitive and not difficult to decipher: “K” – boiler “C” – steel “G” – gas “B” – possibility of supplying hot water (a water heater coil is installed) “12.5” – boiler power in kilowatts “A” – a – possibility of operation as a solid fuel “E” – EUROSIT automation “C” – SABK-AT automation

The device uses a gas pressure stabilizer designed to regulate the network pressure and ensure a uniform and stable flame on the main burners without changing thermal performance. A new heat-resistant stainless steel burner of atmospheric type is used. It is installed at the bottom of the heat exchanger, maintaining a uniform thermal zone in the combustion unit. The design has a uniform placement and prevents zonal overheating of the heat exchanger and its failure.

The built-in draft stabilizer balances the pressure at the entrance to the ejector of the main burners and at the exit from the slot grooves. This ensures constant discharge and stable combustion of the gas-air mixture in the firebox without additional regulation.

Price range

The average prices of Ochag boilers are in the conventional range of 12-20 thousand rubles. Before purchasing, you should clarify what additional devices and accessories will be needed for the normal operation of the boiler itself and the entire system as a whole.

In addition, you will need to conclude a warranty agreement in order to be able to urgently restore the system’s functionality.