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TOP 5 best non-volatile gas boilers for heating

Autonomous heating systems based on gas boilers are considered the most convenient and efficient. They almost do not need constant attention, they are able to maintain a constant temperature, they have protection against possible problems - overheating, flame extinction, and other malfunctions. However, most units are too dependent on the availability and quality of power supply. Any voltage drops become the reasons for the failure of the control board or other devices, and a power outage completely stops the operation of the heating system. To solve these problems, non-volatile gas boilers are used.

Device

The main elements of non-volatile units are the primary (main) heat exchanger and gas burner. They provide the main function of the boiler.

In addition, the structure includes:

  • three-way valve, in which the temperature of the coolant is brought to the set value;
  • gas equipment providing control and fuel supply;
  • secondary heat exchanger (only for dual-circuit models);
  • temperature and pressure sensors.

The list of units is small, but this is the main advantage of non-volatile boilers. The fewer parts, the higher the strength and resistance to loads of the structure as a whole.

Views

There are not so many varieties of non-volatile boilers as there are more modern dependent models. For example, there are no turbocharged units (with mechanical air supply).

There are the following varieties:

  • single-circuit. Provide only heating of the heating agent for the heating circuit;
  • double-circuit. They perform two functions - heating the coolant and preparing hot water.

By installation method:

  • wall. They are installed in a hinged way on load-bearing walls or strong vertical surfaces;
  • floor. installed on the floor or on a non-combustible stand. Most non-volatile units are made in floor-standing design;
  • parapet. These are units that have the characteristics of several groups of gas boilers. They have a lot of features that make them practical and user-friendly.

Principle of operation

The operation of a non-volatile boiler is based on flow heating of the coolant in the flame of a gas burner. The liquid enters the boiler, goes through the heating stage and enters the three-way valve.

There, a colder "return" is mixed in a certain ratio. This allows you to give the coolant the temperature set by the mode. If the boiler is double-circuit, then a secondary heat exchanger is installed between the main heat exchanger and the three-way valve to prepare hot water supply.

Smoke is removed by natural draft, therefore, a connection to a communal chimney of sufficient length is required.

Liquid circulation also occurs naturally, which requires compliance with the standard slope when installing the system.

Rating of non-volatile gas boilers

5 Lemax Premium-12.5

Non-volatile floor-standing boiler of domestic production. The power of the unit is 12.5 kW, so the area of ​​the room should not exceed 125 sq. m.

The model is equipped with a steel heat exchanger, overheating protection and a gas supply controller.

Briefly about the product

  • Efficiency - 90%;
  • maximum heating water temperature - 90 °;
  • pressure in the heating circuit (max) - up to 3 bar;
  • natural gas consumption - 1.5 m3 / hour;
  • dimensions (W-H-D) - 416x744x491 mm;
  • weight - 55 kg.

Lemax gives a long-term guarantee for its boilers - the user receives technical support for 3 years.

4 Lemax Premium-20

Another floor-standing non-volatile gas boiler manufactured in Taganrog.

Its power is 20 kW, which is optimal for most private two-storey houses. The maximum area for this unit is 200 sq. m.

Briefly about the product

  • Efficiency - 90%;
  • maximum heating water temperature - 90 °;
  • pressure in the heating circuit (max) - up to 3 bar;
  • natural gas consumption - 2.4 m3 / hour;
  • dimensions (W-H-D) - 556x961x470 mm;
  • weight - 78 kg.

The single-circuit design is intended for heating the coolant, but if necessary, you can connect an external indirect heating boiler.

3 Lemax Patriot-12.5

Non-volatile parapet model from Taganrog. A boiler with specific capabilities.

Non-volatile unit, but a closed combustion chamber. Boiler power 12.5 kW, suitable for heating 125 sq. m.

Briefly about the product

  • Efficiency - 87%;
  • maximum heating water temperature - 80 °;
  • pressure in the heating circuit (max) - up to 2 bar;
  • natural gas consumption - 0.75 m3 / hour;
  • dimensions (W-H-D) - 595x740x360 mm;
  • weight - 50 kg.

The main advantage of parapet boilers is their low fuel consumption - almost half as compared to conventional models.

2 Siberia 11

Products of Rostov manufacturers of heating equipment. The units are available in single and double-circuit versions, which expands the choice.

The power is 11.6 kW, allowing you to heat a house with an area of ​​up to 125 sq. m.

Briefly about the product

  • Efficiency - 90%;
  • maximum heating water temperature - 90 °;
  • pressure in the heating circuit (max) - up to Bar;
  • natural gas consumption - 1.18 m3 / hour;
  • dimensions (W-H-D) - 280x850x560 mm;
  • weight - 56 kg.

Rostov units are positively assessed by specialists and ordinary users.

1 MORA-TOP SA 40 G

Czech gas non-volatile boiler with a capacity of 35 kW is designed for use in rooms up to 350 sq. m. The massive structure is equipped with a cast iron heat exchanger.

Briefly about the product

  • Efficiency - 92%;
  • maximum heating water temperature - 85 °;
  • pressure in the heating circuit (max) - up to Bar;
  • natural gas consumption - 3.9 m3 / hour;
  • dimensions (W-H-D) - 630x845x525 mm;
  • weight - 151 kg.

The cast iron heat exchanger has a sectional design of 5 sections. There are pressure and temperature sensors.

 



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