Description of the device and the principle of operation of the boiler Hearth

Heating equipment of various modifications and capacities is produced in Russia. Among them are gas heating units, in particular boilers Ochag. They are reliable in operation and have a low price for this class. This contributes to their widespread use for heating estates and country houses located far from the main heating networks.

Advantages and disadvantages of boilers Hearth

The owner of the Ochag equipment brand, ServiceGAZ, has been operating since 1993. The design of the units was developed by the specialists of the design bureau, here it is constantly being improved, with the introduction of new technologies and materials. Individual units can be purchased at the enterprise if it is necessary to replace them. All equipment is manufactured in accordance with the requirements of the ISO 9001-2011 standard.

The advantages include the following characteristics:

• a wide range of models, providing a choice of the optimal look;
• stable work;
• energy independence from external sources;
• high performance;
  
• ease of installation and management;
• low fuel consumption;
• low price;
• compact size and pleasant appearance.

The units have features of work:

• the piping system should be located at a slope to ensure the circulation of the coolant;
• to operate the boiler, it must be equipped with a water pump and a turbo nozzle.

For heating systems of this type, additional equipment ensures uninterrupted operation and is not a disadvantage.

Device and technical characteristics

The heating boiler can be single-circuit, double-circuit or combined.

Single-circuit boiler

It has a cast-iron heat exchanger, natural gas is used for heating. This is a complex configuration and requires a lot of parts to install. Its functions include only heating. For hot water supply, a boiler is additionally installed.

Double-circuit boiler

Equipped with two heat exchangers. Used for central heating and hot water. Natural gas is used for heating. This is a compact installation, it works in an automatic mode. For simultaneous heating of heating batteries and obtaining hot water, a heat accumulator is installed.

In the absence of a heat accumulator, when the hot water tap is opened, the pressure in the heating system drops, the temperature decreases. If the boiler is located far from the place of consumption, hot water will not appear immediately.

Combined installations

These are universal boilers with a steel heat exchanger (KSTG, KSTG). The unit can operate on fuel oil, solid fuel, natural gas. It is used for heating rooms with an area of ​​400 m2 and hot water supply, has an internal water heater. Equipped with gas automatics, which reduces the gas supply when the pressure rises.

Gas boiler Hearth has the following technical characteristics:

The parameters of three commonly used brands of heating unit Ochag are given.

Boiler marking Hearth

The boiler brand has letter designations, which are deciphered as follows:

• K - boiler;
• C - material of the heat exchanger steel, C - cast iron;
• T - used to work on solid fuel;
• Г - equipped with gas burners;
• B - has a water heater in the design;
• M - heating elements and an extended firebox can be mounted to it;
• the figure indicates the power of the boiler, the first figure is for solid fuel operation, the second for gas.

For example: KSG-7AT is a boiler with a steel heat exchanger, equipped with a 7 kW gas burner, with SABK-AT automation. Modification of KCHTG-16: a boiler with a cast-iron heat exchanger operates on gas and solid fuels, with a capacity of 16 kW without installing automation.

Ignition sequence

Heating systems The hearth is equipped with an automatic system that regulates its operation and facilitates ignition. To start the unit with SABK-AT automation, perform the following procedure:

1. Open the gas supply valve.
2. Place the handle in the "Ignition" position.
3. The "Start" button is turned on and held for 10 seconds.
4. The piezo ignition button is pressed several times; in its absence, the gas is ignited with a match.
5. The "Start" button is held for 20-25 seconds until the thermocouple warms up. In this case, the magnetic plug holds the gas valve in the open position.
6. The handle of the block is turned to position 5 and stable combustion of the gas burner is achieved.
7. The required temperature is set on the gas block.

The ignition algorithm for other brands may differ in the position of the block handle, which is indicated in the instructions for the automatic system.

Possible malfunctions

The main problems during the operation of the boiler are associated with the operation of the burner: the flame goes out or burns weakly. This could be due to the following:

• reverse thrust;
• draft;
• strong wind outside;
• lack of gas in the line;
• gas valve malfunction;
• clogged nozzle;
• problems with gas equipment.

In the event of any malfunction of gas heating, you cannot independently find out the cause or perform repairs. The first step is to shut off the gas supply from the mains and call the gas service. Repair of gas equipment must be carried out by a specialist.

Model overview

Characteristics of the most popular modifications of the Hearth equipment:

• Boiler KNG 24. Compact wall-mounted unit, double-circuit. Its modern design allows it to be installed in a residential area, it works silently. Maximum productivity is 24 kW, gas consumption is 2.5 cubic meters / hour, efficiency is 90%.
• Model KSG-11. Floor-standing, steel heat exchanger, capacity 11 kW, gas consumption 1.34 m3 / h, efficiency 90%. The design allows the use of automatic equipment EUROSIT 630, SABK-AT.
• KSTG-16 boiler. The simplest single-circuit floor-standing unit, power 16 kW, runs on coal and gas, efficiency 74%, not equipped with automation. Designed for heating rooms up to 160 m2.
• Model KSG-10 AT. Floor heating installation with a power of 10 kW. It runs on natural gas, you can change the jets for heating with liquefied gas. Compact, lightweight, equipped with SABK-AT automatic control devices.
• Boiler KSG-7 E. Budgetary, the choice of functions is limited, the power of the unit is 7 kW, the efficiency is 85%. Heats a room of 80m2 area. Single-circuit, floor-standing, works stably at low pressure in the network. Small size, modern design, low cost makes it popular for heating small buildings.
• Parapet modification. Wall mounted. The smoke is evacuated through the supplied pipe. Available in two types - single-circuit KSGZ and double-circuit KSGZV.The boiler body is covered with a layer of mineral wool insulation, which can be removed to remove scale from the heater. Productivity 85%.

Ochag boilers are not the best among modern heating equipment. Their advantage is low cost, simple design and maintenance. It is possible to purchase units with a wide configuration and capabilities, with full control automation at a higher price. This budget option does not imply long-term operation, the service life of the brand is 10-15 years.