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:

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.

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.

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.

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.

Why might the burner go out at all?

• the draft in the chimney has decreased or disappeared;
• the gas pressure in the supply line has dropped;
• The flame in the burner has gone out.

Moreover, these processes can occur both due to internal failure and due to the influence of external factors.

If we consider floor-standing models (manufacturers: Danko, Aton, ROSS, Zhitomir), then they have a primitive internal design. Therefore, if you look into them, there is nothing special to break in them. Attenuation in this case occurs most often due to strong wind outside or other external factors.

Floor-standing gas boilers are simple in design, so eliminating the cause of their attenuation will not be so difficult

But wall-mounted gas boilers in their design already resemble an autonomous mini-boiler room, and therefore there may be more options for stopping the operation of a gas boiler:

• the coolant circulation was interrupted or did not start after repairing the circuit (the flow sensor reacts);
• The air supply has decreased/stopped (the pressure switch is triggered);
• voltage drops occur;
• power outage.

If a mounted heat generator goes out, it is not easy to restore its operation. However, it is still quite possible to eliminate some malfunctions on your own. Find out how to do this below.

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.

The gas boiler is blown out by the wind, what should I do?

Often the reason why a gas heating boiler stops working is due to wind blowing. Its shutdown in winter is a very unpleasant surprise for the owners. This can lead not only to a sharp decrease in the temperature inside the house, but also to damage to the entire heating system. Let's deal with the problem.

If your gas boiler suddenly turns off, do not panic and first rule out such a possible cause as a sharp decrease in gas pressure in the pipeline. To do this, you can simply turn on the gas stove and look at the flame, its size, and check how quickly the water boils. You will immediately notice low gas pressure on the hob. In this case, your boiler is definitely not to blame; call the gas workers and find out the causes of the problem. Most likely, not only you have it, but also all your neighbors.

In addition, check and eliminate the possibility of gas leaks using a soap solution, which is applied with a sponge or spray bottle to the joints of pipes and parts. There is no smell or bubbles, which means there is no leakage.

However, often the reason for the gas boiler turning off is obvious - there is a hurricane wind outside, which simply whistles in the pipes. Strong gusts of wind entering the chimney cause reverse draft, the valve is activated, and the flame in the boiler automatically goes out.

You should think about preventing the risk of the boiler blowing out even at the stage of installing the chimney. It is highly advisable to take into account the wind rose in your region. A chimney that is incorrectly located relative to the wind pressure zone significantly increases the risk of the boiler burner blowing out. Incorrect chimney pipe configuration can also cause this problem.

A deflector installed on the head of the chimney pipe copes well with the problem of the boiler blowing out. This is a fairly simple design that increases draft in the chimney, protects it from precipitation and blowing. Be sure to think about installing a deflector or immediately purchase a design with such a device.

Important! Actions with gas equipment require coordination with the relevant service. Therefore, before installing a deflector or weather vane, consult with gas specialists. The cause of a gas boiler blowing out can also be the burning of a metal chimney pipe

As a result of burning, a hole is formed into which air flows - problems with the chimney appear. Only replacing the pipe will help cope with the situation. In the case of coaxial chimneys, there is no risk of burnout, because the hot gas from the boiler flows through the internal pipe, cooled by the oncoming cold air flow

The cause of a gas boiler blowing out can also be a burnout of the metal chimney pipe. As a result of burning, a hole is formed into which air flows - problems with the chimney appear. Only replacing the pipe will help cope with the situation. In the case of coaxial chimneys, there is no risk of burnout, because the hot gas from the boiler flows through the internal pipe, cooled by the oncoming cold air flow.

Two more possible reasons for a gas boiler blowing out:

Ice formation on the chimney. This often happens with coaxial structures in frosts of -10..-15 °C. Hot steam comes out of the chimney, gradually cools, turns into water droplets, condensation, which freezes, forming icicles and a thick layer of ice. This leads to a disruption in draft, the boiler automation is triggered, and it stops working. If such a problem arises, do not rush to knock off the ice build-up - you can damage the chimney itself. It is best to remove the head and upper part of the pipe and bring it into a warm room so that the ice melts naturally. Before removing and cleaning the pipe, the gas supply must be turned off! Additional insulation of the chimney helps to avoid the appearance of ice;

Poor ventilation in the boiler room can lead to problems with the operation of the atmospheric boiler. It will help to install forced ventilation in the room or holes with a fine mesh at the bottom of the boiler room door.

Manipulations with the pipe help to cope with the boiler blowing out - the diameter of its outlet can be reduced or increased in length. A chimney opening that is too large can be reduced by installing an additional inner pipe. Remember that the vertical chimney must be 50 cm higher than the roof ridge.

In this case, too long a chimney can cause excessive, strong draft, which will literally tear the flame away from the boiler burner.

We strongly advise you to call specialists if problems arise in the operation of your gas boiler! Only they will be able to accurately determine the reason for the device shutdown and eliminate it.

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.