TOP 15 best floor standing gas boilers: 2024-2025 ranking by price / quality

Gas boilers are by far the most convenient way to heat any room.To simplify the search for the right device, we analyzed the models presented in online stores, studied their functionality and features, got acquainted with the technical characteristics and reviews of the owners. Below is a ranking of the best, quality and reliable floor standing boilers for 2024-2025, grouped by the most popular request categories.

Rating of the best outdoor gas boilers

Place	Name	Price	Rating
The best floor gas boilers by price / quality for 2024-2025
1	Protherm Bear 20 KLOM	Ask for a price	4.9 / 5
2	Lemax Premium-30B	Ask for a price	4.8 / 5
3	ZHMZ AOGV-23.2-3 Station wagon N	Ask for a price	4.7 / 5
The best floor gas single-circuit boilers
1	Protherm Bear 40 KLOM	Ask for a price	4.9 / 5
2	Lemax Premium-20N	Ask for a price	4.8 / 5
3	BAXI SLIM 1.400 iN	Ask for a price	4.7 / 5
The best floor gas double-circuit boilers
1	Lemax Premium-25B	Ask for a price	4.9 / 5
2	Conord AOGVK - 11.6-1	Ask for a price	4.8 / 5
3	Siberia 23К	Ask for a price	4.7 / 5
The best non-volatile floor gas boilers
1	Lemax Premium-12.5N	Ask for a price	4.9 / 5
2	Signal S-TERM 12.5	Ask for a price	4.8 / 5
3	Siberia 17	Ask for a price	4.7 / 5
The best inexpensive gas floor boilers
1	Conord AOGV - 11.6-3	Ask for a price	4.9 / 5
2	Lemax Gazovik AOGV-6	Ask for a price	4.8 / 5
3	Siberia 11	Ask for a price	4.7 / 5

How to choose a floor gas boiler?

From this article you will learn how to choose a floor gas boiler. It must be remembered that for 2024-2025, floor-standing gas boilers for a private house are still a more powerful way to heat a room, and are also reliable and durable compared to most of their counterparts.

Criteria worthy of attention:

• Thermal power. On average, 1 kW of power of the device is able to warm up about 8 m2. Calculate the total area you need to heat and divide by 8 to get the required number. Add another 1 kW for water heating. At the same time, one should not forget about additional parameters when calculating: the thickness of the walls, their material, the quantity and quality of windows and doors, the presence of an attic, etc.
• Number of circuits. Gas floor boilers are single-circuit and double-circuit. Single-circuit only heat the room, and double-circuit in addition to this heat the water. The cost of dual-circuit models will be only 10-15 percent higher.
• Heat exchanger material. Models made of cast iron are not subject to acid attacks and thermal shock. The heat exchanger made of steel is light and durable, not prone to cracking, resists deformation. Copper models are rare due to the high cost. Differ in heat conductivity, resistance to corrosion.
• Combustion chamber type. May be open or closed.In boilers with an open chamber, air will be taken from the room where the boiler is located, so there must be a chimney where it is located.
• Principle of operation. Convection boilers are ordinary appliances that accumulate thermal energy by burning gas in a combustion chamber. Some of the heat is lost. The condensing type is more expensive and advanced, with an additional heat exchanger that accumulates the heat of condensate from the exhaust gases. At the same time, the temperature of the latter is very low, and the energy accumulated by the additional heat exchanger is spent on heating the return line.
• Control. There are two options: manual and automatic. Automatic is safer, does not require constant monitoring by the owner, however, such a model will be more expensive.

The best floor gas boilers by price / quality for 2024-2025

1. Protherm Bear 20 KLOM

Protherm Bear 20 KLOM is a gas single-circuit boiler of automatic type. It must be installed in accordance with all indents from nearby walls. In the conditions of domestic networks, the device performs well and gives an efficiency of up to 92%, which is an indicator of an excellent level. Heat is generated from the combustion of gas, since this is a convection type device.

The heat exchanger here is cast iron, durable, but heavy and inert (it takes a long time to cool down and heat up for a long time). Auto ignition ignites the burner and turns it off using a specific algorithm, so that fuel will be saved significantly. This is also facilitated by the modulation of the flame burner.The control of the model is electronic, which does not require your constant supervision, but is dependent on power surges (it can turn off in case of strong drops).

There is a thermometer and a pressure gauge to monitor the indicators inside the boiler. Among the protections there is a gas control that stops the gas supply when the flame goes out, automatic switching on at abnormally low temperatures to warm up the device, as well as self-switching off if too high temperatures are reached during heating.

Specifications:

• type of heating boiler: gas, convection;
• thermal performance: 12-17 kW;
• thermal load: 13.50 - 19 kW;
• Management: electronic;
• primary heat exchanger material: cast iron.

2. Lemax Premium-30B

Lemax Premium-30B is a double-circuit gas boiler that must be installed on the floor, observing the distance from the walls. Heat is generated by burning gas, the efficiency of the apparatus is not bad, up to 90% in the conditions of domestic networks. The advantage of this model is that it does not need an electrical network, it is turned on manually, and the coolant circulates without a pump.

A small drawback is the uneconomical operation of the boiler. The device is controlled manually, it has few parameters, it also guarantees cheaper repairs and greater reliability compared to most automatic counterparts. The thermometer will show the temperature, and to avoid overheating, the boiler will turn off when the water gets too hot.The safety system cuts off the gas supply if the burner flame goes out.

The heat exchanger is made of steel, which is lightweight and shock-resistant material, the cost of which is low. However, there are also disadvantages: a greater susceptibility to corrosion and a shorter service life compared to other materials.

Specifications:

• type of heating boiler: gas;
• Max. thermal performance: 30 kW;
• control: mechanical;
• primary heat exchanger material: steel.

3. ZHMZ AOGV-23.2-3 Universal N

ZhMZ AOGV-23.2-3 Station wagon N is a single-circuit floor-standing gas boiler that must be installed taking into account all the necessary distances from the walls. Its efficiency is at a good level, although not the most impressive, in Russian networks it reaches 88%. Heat is generated from the combustion of fuel, the boiler operates on both natural and liquefied gas. The inclusion is carried out manually, there is no possibility to spend less gas during operation, but at the same time, the reliability is much higher than that of automatic colleagues.

Another plus is a more budgetary repair due to the lack of electronics and a small number of control parameters. There is a thermometer to control the temperature of the coolant. Of the protections, there is an air vent, which dumps part of the air when the pressure in the heating system rises. Gas control automatically stops the gas supply when the flame goes out. The coolant circulates without a pump.The combustion chamber is open, so it is better to install the device in a special boiler room with good smoke removal.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 23.20 kW;
• Management: mechanical.

The best floor gas single-circuit boilers

1. Protherm Bear 40 KLOM

Protherm Bear 40 KLOM is a single-circuit gas boiler of automatic type. It is installed on the floor, taking into account all the necessary distances to the walls. This is a convection-type device, that is, heat is generated from the combustion of gas. Under the conditions of work in domestic networks, the efficiency of the device reaches 92%, which is an excellent indicator.

The primary heat exchanger is made of cast iron, a material that is durable, reliable and resistant to corrosion. Of its minuses, one can note weight, instability to too sharp temperature changes and inertia (heats up for a long time, cools down for a long time).

Electric ignition extinguishes and turns on the burner according to the algorithm if necessary, which significantly saves fuel. The modulation of the burner smoothly regulates the flame, which also gives a plus to the economy of gas consumption. The boiler is controlled electronically, on its body there is a display and a connector for connecting additional devices (programmer, thermostat, etc.). There is a thermometer and a manometer for monitoring the parameters of the coolant. A large number of protections: gas control, protection against freezing, overheating and blocking.

Specifications:

• type of heating boiler: gas, convection;
• thermal performance: 24.50-35 kW;
• thermal load: 27 - 38.50 kW;
• Management: electronic;
• primary heat exchanger material: cast iron.

2. Lemax Premium-20N

Lemax Premium-20N is a single-circuit gas boiler designed for rooms up to 200 sq.m. This is a convection type device, so heat is generated from the combustion of gas. Under the condition of functioning in domestic gas networks, the efficiency reaches 90%, which is an indicator of a good level of heating.

The heat exchanger of the device is made of steel, it is a lightweight material of budgetary cost, tolerant of shocks and external damage. The downside is a slightly greater tendency to corrosion and a slightly shorter service life compared to other materials.

Non-volatile operation does not require connection to electricity, ignition is done manually, and the coolant circulates naturally (the pump is not provided here). The lack of electronic saving algorithms is the main disadvantage of this type. The boiler is controlled mechanically, has a thermometer to measure the temperature of the coolant. The gas control will shut off the gas flow if the burner flame goes out.

Specifications:

• type of heating boiler: gas;
• Max. thermal performance: 20 kW;
• control: mechanical;
• primary heat exchanger material: steel;

3. BAXI SLIM 1.400 iN

The rating is supplemented by a single-circuit boiler for space heating up to 400 sq.m - BAXI SLIM 1.400 iN. It must be installed in compliance with the required distance from the walls. Heat is generated from burning gas, since the device is of the convection type. The device works on natural and liquefied gas. In the conditions of domestic networks, most likely it will not work to get the maximum power, since the pressure in them is less, respectively, the efficiency will also differ from the declared one.

The heat exchanger is made of reliable and durable cast iron, resistant to corrosion. But it is worth noting that it does not tolerate sudden changes in temperature very well, and also gains temperature for a long time and does not cool down for a long time. The weight of cast iron is also large compared to other materials.

Auto ignition turns the burner on and off, which saves fuel. Flame modulation allows gradual adjustment and also helps to save gas. The boiler is controlled electronically, which is a plus if you do not want to constantly monitor it, but there is a minus, since it can turn off during a sudden voltage drop.

Specifications:

• type of heating boiler: gas, convection;
• thermal performance: 20.60 - 40 kW;
• thermal load: 23 - 44.10 kW;
• Management: electronic;
• primary heat exchanger material: cast iron.

The best floor gas double-circuit boilers

1. Lemax Premium-25B

The Lemax Premium-25B model entered the TOP floor gas double-circuit boilers for space heating up to 250 sq.m. The model is placed on the floor, subject to all the necessary distances to the walls. A separate room is required for installation, since the presence of an open chamber implies the presence of a good smoke exhaust. The heating comes from burning the gas as it is a convection model. The boiler runs on natural gas. Under the conditions of Russian networks with reduced gas pressure, the device gives an efficiency of 90%, which is a good indicator.

The device does not need to be connected to the mains, but the ignition must be done manually, and the coolant will circulate without a pump. Of the minuses, one can also note the absence of electronic algorithms, for example, weather electronics. The heat exchanger of the device is made of steel, it is a lightweight material of budgetary cost, tolerant of shocks and damage from the outside. The downside is a slightly greater tendency to corrosion and almost the longest service life compared to other materials. The device is controlled mechanically, there are few parameters and they are configured manually. Minus — the inability to save fuel.

Specifications:

• type of heating boiler: gas;
• Max. thermal performance: 25 kW;
• Management: mechanical;
• primary heat exchanger material: steel.

2. Conord AOGVK - 11.6-1

Conord AOGVK - 11.6-1 is a two-circuit model designed to heat a room up to 110 sq.m. It is placed on the floor, taking into account all the necessary distances to the wall. A separate boiler room should be provided for installation, since the presence of an open combustion chamber implies an additional system for removing combustion products.

The type of device is convection, which involves heating by burning fuel, which is natural gas. The temperature of the coolant can reach 50-90 degrees. Non-volatile operation does not require connection to the electrical network, which is an undoubted advantage. In this case, the inclusion will be carried out manually, and the coolant will circulate without a pump.

The lack of algorithms for saving fuel is the main disadvantage of this type of boilers. The heat exchanger of the device is made of steel, it is a lightweight material of budgetary cost, tolerant of shock and damage. The downside is a slightly greater disposition to corrosion and a slightly shorter service life compared to other materials. Gas control will automatically turn off the gas supply when the burner flame goes out.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 11.60 kW;
• control: mechanical;
• primary heat exchanger material: steel.

3. Siberia 23K

Siberia 23K is a gas double-circuit boiler, which is installed on the floor in compliance with all distances and walls. It can heat a room up to 250 sq.m.Heat generation occurs when fuel is burned, since this is a convection type boiler.

The heat exchanger of the device is made of steel, a lightweight material of budgetary cost, tolerant of shock and damage. Its disadvantage will be a slightly greater susceptibility to corrosion and a slightly shorter service life. The control of the device is mechanical, which implies manual setting of the necessary parameters. Its advantage will be greater fuel economy and lower repair costs in case of breakdowns.

The non-volatile principle of operation does not require a connection to the mains, the ignition is also done manually. The disadvantage will be the lack of systems for saving fuel of the electronic type. The thermometer allows you to control the temperature in the boiler and avoid overheating or hypothermia. The gas control cuts off the gas supply when the burner is off.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 23.20 kW;
• control: mechanical;
• primary heat exchanger material: steel.

The best non-volatile floor gas boilers

1. Lemax Premium-12.5N

Lemax Premium-12.5N is a single-circuit gas boiler for heating rooms up to 125 sq.m. It is installed on the floor in the boiler room, since the open combustion chamber implies a system for removing combustion products.Under the conditions of operation in domestic networks, the efficiency will not be as high as the manufacturer promises, due to the reduced pressure. Its value will reach 90%, which is not the worst result.

Heat is generated by the combustion of fuel. The heat exchanger of the device is made of steel, it is a lightweight material of budgetary cost, tolerant of shocks and chips. Its disadvantage will be a slightly greater disposition to corrosion and a slightly shorter period of operation. The control of the device is mechanical, which implies manual setting of the necessary parameters.

Its advantage will be greater fuel economy and lower repair costs in case of breakdowns. The non-volatile principle of operation does not require connection to electricity, the ignition is also done manually. The disadvantage will be the lack of systems for saving fuel of the electronic type.

Technical specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 12.50 kW;
• control: mechanical;
• primary heat exchanger material: steel.

2. Signal S-TERM 12.5

Signal S-TERM 12.5 is a non-volatile floor gas boiler for heating rooms up to 125 sq.m. It has a bright design, compact size and convenient operation.

Heat is generated by the combustion of fuel. The heat exchanger is made of steel, a light material of budgetary cost, well tolerated by shocks and mechanical damage.The disadvantages of the material will be a higher susceptibility to corrosion and not such a long service life. The control of the device is mechanical, which implies manual setting of the necessary parameters.

Its advantage will be greater fuel economy and lower repair costs in case of breakdowns. The non-volatile principle of operation does not need to be connected to the mains, the ignition is also done manually. In domestic networks, the efficiency of the device reaches 90%, which is not the worst indicator. A separate boiler room is needed to install the appliance, since an open combustion chamber requires a separate good smoke exhaust system.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 12.50 kW;
• control: mechanical;
• primary heat exchanger material: steel.

3. Siberia 17

Siberia 17 is a gas double-circuit boiler, which is installed on the floor, observing all distances from the wall. It can heat a room up to 250 sq.m.

Heat is generated by burning fuel, since this is a convection-type boiler. The heat exchanger is steel, made of lightweight material of budgetary cost, well tolerated by various mechanical damage.

Its disadvantage will be a slightly greater tendency to corrosion and a shorter service life compared to some other materials. The control of the device is mechanical, which implies manual setting of the necessary parameters.

Its advantage will be greater fuel economy and lower repair costs in case of breakdowns. The non-volatile principle of operation does not require the need to connect to the mains, the inclusion is made without automation. The disadvantage will be the lack of systems for saving fuel of the electronic type. The thermometer allows you to control the temperature in the boiler and avoid overheating or hypothermia. You need to put the device in the boiler room, because you need a smoke exhaust system.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 17.40 kW;
• Management: mechanical;
• primary heat exchanger material: steel;

The best inexpensive gas floor boilers

1. Conord AOGV - 11.6-3

Conord AOGV - 11.6-3 is a single-circuit gas boiler, which is used to heat a room up to 116 sq.m. It is installed on the floor at a certain distance indented from the walls. A separate boiler room should be provided for installation, since the presence of an open combustion chamber implies an additional system for removing combustion products.

The type of device is convection, which involves the generation of heat by burning fuel, which is natural gas. Energy independence does not imply connection to the electrical network, which is a definite plus. In this case, ignition will not be carried out automatically, and the coolant will circulate without a pump.

The lack of algorithms for saving fuel is the main disadvantage of this type of boilers.The heat exchanger is made of steel, it is a lightweight material of budgetary cost, tolerant of shocks and deformations. The downside is a slightly greater tendency to corrosion and slightly less durability. Gas control will automatically turn off the gas when the burner flame goes out.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 11.60 kW;
• control: mechanical;
• primary heat exchanger material: steel;

2. Lemax Gazovik AOGV-6

Lemax Gazovik AOGV-6 is a budget model of a gas single-circuit boiler for heating 50 sq.m. Like all floor models, it is installed in compliance with indents from nearby walls, and should be located in a boiler room with a good smoke exhaust system.

In domestic networks, its efficiency is 89%, which is not very much compared to other models, but it fully corresponds to the cost. Heat is generated from the combustion of gas fuel, the boiler runs on natural gas. The device does not need to be connected to electricity for operation, ignition is done manually, the coolant circulates without a pump.

The primary heat exchanger is made of steel, it is a lightweight material of budgetary cost, tolerant of shocks and deformations. The downside is the predisposition to corrosion and a shorter service life compared to other materials. The boiler is controlled mechanically, it has few settings, and everything can be changed manually. The advantage of this method will be its reliability and less expensive repairs in the event of a breakdown. Of the protections, there is only gas control, which allows you to stop the gas supply in the event of the burner flame fading.

Specifications:

• type of heating boiler: gas;
• Max. thermal performance: 6 kW;
• control: mechanical;
• primary heat exchanger material: steel;

3.Siberia 11

Siberia 11 is a single-circuit gas boiler belonging to the budget segment, which is designed to heat a room up to 110 sq.m. This floor model is installed with the required distance from the walls and should be placed in a boiler room with a good smoke extraction system.

Heat is generated from the combustion of gas fuel, the boiler runs on natural gas. The device does not need to be connected to electricity for operation, ignition is done manually, the coolant circulates without a pump. The heat exchanger is made of steel, it is a lightweight material of budgetary cost, tolerant of shocks and deformations.

The downside is a slightly greater tendency to corrosion and slightly less durability. The boiler is controlled mechanically, it has few settings, and everything can be changed manually. The advantage of this method will be its reliability and inexpensive repair in the event of a breakdown. In the conditions of domestic gas networks, the efficiency of the device is 90%, which is a very good result.

Specifications:

• type of heating boiler: gas, convection;
• Max. thermal performance: 11.60 kW;
• control: mechanical;
• primary heat exchanger material: steel;

Which firm to choose?

The most reliable and trusted floor boiler manufacturers for 2024-2025: Baxi, Siberia, Protherm, Lemax.

Conclusion

You can choose a floor-standing gas boiler among a variety of models if you pay attention to the characteristics and criteria that you need. If you decide which room is heated and what power of the device you need, then the search will not be long, and the result in the form of a purchase will bring pleasure from long-term use.

Useful video

In this video, you will get acquainted with the rating of the best outdoor gas boilers: