In the absence of central communications, heating and hot water supply is provided by the use of gas boilers. This article discusses floor-standing heating boilers, lists the criteria by which a heating device is selected, lists the most proven brands that produce floor-standing units, lists the best gas heating boilers depending on the power and type of performance.
| A place | Name | ||
| 1 | Protherm Wolf 16 KSO |
| 2 | Lemax Premium-12.5 |
| 3 | BAXI SLIM 1.230 iN |
| 4 | Lemax Leader-25 |
| 5 | DeDietrich DTG X 23 N |
| 6 | Pechkin KSG-12.5 |
| 7 | MORA-TOP SA 20 |
| 1 | Lemax Premium-12.5B |
| 2 | Kiturami STSG 13 GAS |
| 3 | Lemax Premium-30B |
| 4 | Pechkin KSGV-20 |
| 5 | Navien GA 35KN |
Criteria for choosing a good floor standing gas boiler
For the correct choice of a heating device, the following characteristics must be taken into account.
- Boiler power - the most important characteristic required for choosing a heating device. In a house with external wall insulation and a ceiling height of 2.7 meters for heating 10 sq. m. premises usually need 1-1.2 kW of power. Additionally, you need to add a 20% power reserve to quickly warm the room. With a double-circuit design, it is required to add another 30% of the capacity for heating water.
- Heating area Is the maximum area in which the boiler will work efficiently. If the heated area exceeds the capabilities of the heating device, the room will slowly warm up, the temperature will not rise to the optimal value. The boiler itself will constantly work at the maximum capacity, which will reduce its service life. When calculating the heating area, it is necessary to take into account all the rooms that will be heated, regardless of the presence of batteries or warm floors there.
By the number of circuits, gas boilers can be of two types:
- single-circuit - involved only for heating the building;
- double-circuit - used for heating and hot water supply.
When installing a single-circuit water heater, hot water supply can be provided by additional installation of boilers.
Gas heaters are available with two types of burners.
- Open atmospheric burner... For the combustion process, it uses oxygen from the room in which it is installed, which requires the installation of supply ventilation. To remove smoke, a vertical chimney with a length of at least 4 meters is used.
- Closed burner... The process of air supply and smoke removal is forced by means of fans. Often, a coaxial horizontal chimney is used for this. Through it, both smoke removal and oxygen supply from the street take place at the same time.
Heat exchanger material... The main materials for the manufacture of heat exchangers for floor-standing gas boilers are steel and cast iron. There are also models with copper or aluminum parts.
- Cast iron... Excellent corrosion resistance, durable and reliable material. The disadvantages are its inertness, that is, a slow change in temperature, as well as the possibility of cracking when cold water gets into a hot heat exchanger.
- Steel... Steel heat exchangers will not suffer from sudden changes in the temperature of the coolant. However, steel is susceptible to perforating corrosion.
- Non-ferrous metals... Copper and aluminum are widely used in the manufacture of boilers. They are maintainable, reliable, resist corrosion and are not afraid of temperature extremes.
- Adjustability... The wide possibilities of adjusting heating devices allow them to work in optimal economical modes, to ensure a constant comfortable temperature and safety of the boiler itself. Modern programmers can be customized in many ways. However, they require a constant power supply. There are non-volatile regulators. These are simple and reliable devices, but their set of adjustment functions is minimal.
The best manufacturers of gas water heaters
The reliability and quality of heating equipment directly depend on the brand. The most famous manufacturers of gas floor boilers are the following companies.
- Lemax - a Russian manufacturer of heating equipment from Taganrog. Gas heaters of this company are highly reliable and affordable.
- BAXI Is an Italian manufacturer of heating equipment. The history of the company dates back to 1924. The products of this brand are distinguished by the highest quality, confirmed by various world certificates.
- Protherm - manufacturer from Slovakia. The brand is relatively young, however, due to the quality of its products, it is among the top manufacturers of heating equipment. The company belongs to the German giant Vaillant Group. To improve the quality of products, it uses the assembly technology "one boiler - one master".
- MORA - Czech company, part of the Gorenje Group corporation. Its history begins in 1825. During this time, it has established itself as a first-class manufacturer of heating technology.
- Pechkin - a manufacturer of heating equipment from Russia. The enterprise is located in the city of Taganrog. The products of this company are highly reliable and unpretentious.
The best single-circuit heating boilers in 2020
Single-circuit boilers are intended for space heating only. The advantage of this type of heater is its simplicity and reliability. The most proven single-circuit heating devices are shown below.
The best 16 kW convection boiler. Designed for systems with natural circulation of the heat carrier. The maximum area of the room in which the heater will operate efficiently is 160 sq. m Non-volatile, gas is ignited by a piezoelectric element. Heater control is mechanical, one-stage. The heat exchanger is made of steel. Equipped with indicators of temperature and pressure of the coolant. The device is protected by draft sensors, flame sensors and a safety valve.
Advantages:
- reliability;
- simplicity of design;
- does not require a power source.
Disadvantages:
- the need for manual control.
In general, the unit has proven itself only on the positive side. The heater is simple and reliable. There are no weak points that can fail.
A good single-circuit convection heater with a power of 12.5 kW. The device effectively copes with heating rooms up to 120 sq.m.Equipped with a cylindrical steel heat exchanger and a burner from the Italian manufacturer SIT.
The heat exchanger is coated with an anti-corrosion compound. The heating device is protected against interruption of draft, overheating, soot formation, and blowing out of the boiler. The boiler can be converted to run on LPG.
Advantages:
- non-volatile;
- simplicity of design;
- ease of cleaning the boiler.
Disadvantages:
- minimum settings.
Reliable and powerful heater. Works almost silently. The set temperature is maintained automatically. Convenient to maintain and manage.
Single-circuit heating boiler with a capacity of 22.1 kW. It copes well with heating rooms up to 220 sq. m. The device is equipped with electronic modulation of the flame and a self-diagnosis system, which significantly improves its performance.
Heat exchanger material - cast iron, burners - stainless steel. It is possible to connect an external boiler for hot water supply. The device is equipped with a smooth ignition, a wide range of automatic adjustments and protections.
Advantages:
- autonomy of work;
- the ability to connect a timer;
- high reliability and safety.
Disadvantages:
- requires constant power supply;
Expert conclusion: Together with the purchase of this boiler, you need to take care of the acquisition of a chimney. The heater itself is reliable and not whimsical. Able to work for a long time without outside interference. The need for power supply is more than compensated by the ability to work from two car batteries through an inverter.
Single-circuit gas boiler. Power 25 kW, capable of efficiently heating rooms up to 250 sq. m. The device does not require external power supply. The heat exchanger material is gray cast iron, which has excellent performance characteristics.
The heater is manufactured using Italian components: a SIT burner and gas valve, a POLIDORO micro-taper burner. The device is equipped with a set of protections against overheating, blowing out, traction interruption, soot formation.
Advantages:
- reliability;
- energy independence;
- security.
Disadvantages:
- minimum settings;
Easy to operate heating unit. The performance fully complies with the declared characteristics. High degree of protection and imported components ensure reliable and trouble-free operation.
Single-circuit cast-iron heater equipped with auto-ignition. Power 23 kW, maximum efficiency for space heating up to 230 sq. m. Equipped with a wide variety of protections and adjustments, control of ignition and extinguishing of the flame, limitation of natural draft when the heater is turned off.
The heat exchanger with special heat-removing wedges and a washed firebox is made of eutectic cast iron.
Advantages:
- ease of maintenance and operation;
- a wide range of settings and protections;
- does not require constant monitoring.
Disadvantages:
- requires a constant power supply.
Expert opinion: Economical and unpretentious heater. It works reliably in a given mode, automatically adjusting the parameters for weather conditions. The ductile cast iron heat exchanger does not worry about the return water temperature.Easy to install.
Floor-standing gas boiler with a capacity of 12.5 kW. It copes well with heating rooms up to 120 sq. m. Can be used in systems with natural and forced circulation of water.
The heat exchanger is made of steel and is a water jacket that surrounds the combustion chamber. Mechanical control is carried out through the regulator on the front panel. The device is equipped with modern protective automatics.
Advantages:
- energy independence;
- large heat transfer surfaces;
- reliable, simple design.
Disadvantages:
- minimum settings.
An excellent option in terms of price-quality ratio. Simple, unpretentious and reliable heater. High build quality. The power corresponds to that declared by the manufacturer.
Single-circuit heating device, 15 kW. Maximum efficiency is achieved when heating rooms up to 150 sq. m. Heat exchanger material - cast iron, burners - stainless steel.
The ignition is carried out from the pilot burner. Electronic control, auto ignition, summer-winter mode. Single phase power supply required. Disconnection of electricity does not affect the operation of the device. Gas control is installed from the protective automatics.
Advantages:
- simplicity of design;
- silent work;
- high efficiency.
Disadvantages:
- volatility.
This heater is unpretentious, works effectively at low gas pressure, and power outages. Convenient adjustment allows you to work as economically as possible. The power of the device corresponds to the declared one, it quickly warms up the room.
The best double-circuit gas water heaters
If it is required not only to heat the building, but also to provide hot water supply, double-circuit heating devices are used. The best models of double-circuit boilers are shown below.
The best double-circuit convection boiler with a capacity of 12.5 kW. Maximum efficiency for space heating up to 120 sq.m. Equipped with a cylindrical steel heat exchanger and a burner from the Italian manufacturer SIT. The heat exchanger is coated with an anti-corrosion compound.
The hot water circuit is made of copper. The heating device is protected against interruption of draft, overheating, soot formation, and blowing out of the boiler.
Advantages:
- ease of service;
- security;
- energy independence.
Disadvantages:
- manual adjustment.
Expert rating: Simple and reliable heater. High degree of security. It copes well with heating and hot water supply.
A good double-circuit convection apparatus designed for heating and hot water supply. The power of the device is 16.8 kW. It copes well with heating an area of 160 sq. m.
The heat exchanger is made of stainless steel in the form of a coil, which prevents water from boiling in it. The boiler is equipped with a turbocyclone burner with a gas afterburning function. This allows the device to be as economical as possible. Safety is ensured by self-diagnostics, combustion and temperature control.
Advantages:
- small size and weight;
- wide customization options;
- electronic regulation.
Disadvantages:
- the need for a power source.
Reliable and safe model. Various protections and automation allow the device to work for a long time without outside interference. The device is easy to operate and environmentally friendly.
Non-volatile double-circuit heater. Power 30 kW, efficient heat supply for premises up to 300 sq. m. The heat exchanger is steel, cylindrical, treated with a special inhibiting compound that reduces the effect of aggressive media.
Components for burners and gas equipment of foreign production. A wide range of protective automation is provided.
Advantages:
- high security;
- ease of maintenance;
- does not require a power source.
Disadvantages:
- minimum settings.
Expert rating: Simple and powerful heater. It copes well with heating and hot water supply of large premises. Installation of an electronic control unit is possible, which significantly improves the capabilities of the boiler.
Double-circuit boiler with a capacity of 20 kW. It copes well with heating areas up to 200 sq. m. The heat exchanger of the device is made of steel and is a water jacket that goes around the combustion chamber.
The adjustment is made by a mechanical regulator on the front panel of the heater. Safety is ensured by modern protective automatic gas control and overheating protection.
Advantages:
- simple construction;
- silent work;
- small dimensions;
- energy independence.
Disadvantages:
- manual adjustment;
High quality and powerful unit. It copes with its task perfectly even when installed in rooms that are maximum for its characteristics. The boiler is characterized by high safety, quiet operation and power reserve.
A two-circuit unit made in South Korea with a closed combustion chamber. Power 35 kW. Effectively copes with heating buildings up to 350 sq.m. Heat exchanger and structural steel of the highest quality.
Exhaust turbocharged. It is carried out through a regular chimney or through a horizontal chimney in the wall. Microprocessor controlled. The set includes a russified control panel with LCD display, which allows remote control of the heater operation.
Advantages:
- convenient control;
- compact size.
Disadvantages:
- requires a constant source of electricity;
- high price.
This heater has a large power reserve. Copes with the function of hot water supply and heating. The device is reliable and of high quality. Able to work in automatic mode for a long time. Easy to manage.
How to choose a good floor standing gas boiler: video
