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TOP 10 best floor-standing gas boilers for heating

Gas is most often used to heat a private house; this fuel is beneficial for residents of Russia. Since heat generators are expensive, you need to know how to choose the right one. The choice of a boiler for the heating system is an important and responsible procedure that determines the microclimate of the house for the coming years.

It is necessary to clearly understand the structural features of gas boilers, to be able to determine the most successful parameters and a set of functions.

Single-circuit and double-circuit floor standing boilers

The basic function of any boiler is to heat the heating medium (RH) for the heating circuit. It is possessed by all models, regardless of what additional capabilities they have.

There are units designed only for the preparation of the coolant. These are single-circuit boilers performing a single, main task. In addition, there are double-circuit boilers capable of preparing hot water for domestic needs simultaneously with heating the heating agent. They are equipped with an additional heat exchanger, which uses part of the excess thermal energy of the heat carrier.

These units are called double-circuit. They allow you to get the maximum set of functions, but they have some limitations in the performance on the DHW circuit. Heating occurs in a flow-through mode, therefore, it has not yet been possible to achieve a uniform and stable temperature.

Convection or condensation?

The traditional method of heat transfer of a gas boiler is heating the coolant in a flow-through mode. It passes through the heat exchanger, and the gas burner heats the liquid in accordance with the specified operating mode.

This type of boiler is called convection boiler. Relatively recently, a new design of units has appeared - condensing. It uses preheating of the coolant from the heat generated during the condensation of the exhaust smoke.

The temperature of the liquid rises by a small amount, but this is enough to make it possible to reduce the heating mode of the main heat exchanger.

As a result, a positive effect is achieved:

  • reduced fuel consumption;
  • the load on the burner and heat exchanger is reduced;
  • the service life of the boiler is increased.

With properly organized operation of the unit, fuel economy reaches 20%. However, there are some specific conditions that severely limit the scope of application of condensing boilers.

The reason is that the condensation process can only take place when the temperature of the walls of the condensation chamber is higher than the return flow temperature. This is only possible on underfloor heating systems or radiator circuits with a low degree of heating.

It is calculated that the operation of the first stage is possible only when the difference between outside and inside the house is no more than 20 °. For Russia, such a ratio is simply not feasible. If condensation is not possible, the boiler operates as a conventional convection model.

Rating of floor-standing gas boilers

Protherm Wolf 16 KSO

A company from Slovakia produces a wide range of gas boilers. The Wolf 16 KSO model is a 16 kW single-circuit boiler. He is successfully able to heat a house with an area of ​​160 sq. m.

The boiler heat exchanger is two-pass, made of stainless steel.

Main characteristics:

  • Efficiency - 92%;
  • coolant temperature - 30-80 °;
  • system pressure - up to 1 bar;
  • gas consumption - 2.1 m3 / h;
  • dimensions - 390x745x460 mm;
  • weight - 46.5 kg.

All series of boilers from Protherm are named after different animals. By their appearance, you can determine the belonging of a given model to a certain group of equipment.

Lemax Premium-12.5

Floor standing single-circuit gas boiler of Russian production. With a power of 12.5 kW, it is capable of heating rooms up to 125 sq. m.

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 3 bar;
  • gas consumption - 1.5 m3 / hour;
  • dimensions - 416x744x491 mm;
  • weight - 55 kg.

Non-volatile units allow to increase the reliability of operation and relieve worries about the safety of heating in the winter.

Lemax Premium-20

Russian floor heating boiler. The power of the unit is 20 kW, which is a good choice for owners of houses up to 200 sq.m.

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 3 bar;
  • gas consumption - 2.4 m3 / hour;
  • dimensions - 556x961x470 mm;
  • weight - 78 kg.

Single-circuit non-volatile models have the most simple design, which increases the reliability and stability of their operation.

BAXI SLIM 1.230 iN

Italian engineers have developed a high-quality and efficient model of a 22.1 kW floor-standing gas boiler. This allows the unit to heat an area of ​​up to 220 sq. m.

Main characteristics:

  • Efficiency - 90.2%;
  • coolant temperature - up to 85 °;
  • system pressure - up to 3 bar;
  • gas consumption - 2.59 m3 / h;
  • dimensions - 350x850x600 mm;
  • weight - 103 kg.

BAXI boilers belong to the group of elite heating equipment and are one of the leaders in European heating technology.

Lemax Premium-25N

Another representative of domestic heating equipment manufactured in Taganrog. This is a single-circuit non-volatile gas boiler designed for floor mounting.

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 3 bar;
  • gas consumption - 3 m3 / hour;
  • dimensions - 470x961x556 mm;
  • weight - 83 kg.

The warranty for Lemax boilers lasts 36 months, which increases the manufacturer's technical support by one and a half times and allows the user to receive specialized repair or maintenance of the units.

Siberia 11

Products of the Rostov firm "Rostovgazoapparat". The power of this floor-standing non-volatile unit is up to 11.6 kW, allowing you to heat the house up to 120 sq. m.

All control is mechanical, power outages on the heating system will not be reflected in any way.

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 3 bar;
  • gas consumption - 1.18 m3 / hour;
  • dimensions - 280x850x560 mm;
  • weight - 52 kg.

In the arsenal of the company there are single and double-circuit models of boilers of this series.

MORA-TOP SA 20

Czech floor-standing boilers with a cast-iron heat exchanger provide high reliability and stability of heating the house. The MORA-TOP SA 20 model has a power of 15 kW and is designed to work in rooms up to 150 sq. m.

Main characteristics:

  • Efficiency - 92%;
  • coolant temperature - 85 °;
  • system pressure - up to 3 bar;
  • gas consumption - 1.6 m3 / hour;
  • dimensions - 365x845x525 mm;
  • weight - 99 kg.

The heat exchanger is sectional and consists of 3 compartments. The boiler is non-volatile, but equipped with two types of branch pipes - for natural and forced circulation.

Lemax Premium-10

Floor-standing non-volatile gas boiler with a capacity of 10 kW. Able to heat a house up to 100 sq.m.

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 1 bar;
  • gas consumption - 1.2m3 / hour;
  • dimensions - 330x748x499 mm;
  • weight - 48 kg.

The boiler is single-circuit, all control works on a mechanical principle.

Lemax Premium-16

Floor standing gas boiler designed to service the heating system of a private house up to 160 sq. m. Its power is 16 kW

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 3 bar;
  • gas consumption - 1.9 m3 / hour;
  • dimensions - 416x744x491 mm;
  • weight - 55 kg.

This model is one of the most demanded on the market, since its capacity is optimal for most private houses.

Lemax Clever 30

Single-circuit floor-standing gas boiler. Its power is 30 kW, which allows heating 300 sq. m. useful area. The unit is volatile, has electronic control and a comprehensive protection system.

Main characteristics:

  • Efficiency - 90%;
  • coolant temperature - 90 °;
  • system pressure - up to 2 bar;
  • gas consumption - 1.75 m3 / hour;
  • dimensions - 470x961x556 mm;
  • weight - 85 kg.

The power of the unit is excessive for one residential building, therefore, owners often purchase such boilers in a joint and use them to work in 2 systems.

User preferences are quite justified - if the area of ​​the room allows, it is necessary to purchase the most stable and reliable heating equipment. You should not get carried away with the additional capabilities of the boiler.

The main selection criterion should be basic functions, their stability and continuity.

 



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