Among the large number of boilers that work on gas, it is hard to find a suitable model. More detailed information about the device of a single-circuit, two-circuit gas boiler for the heating of a private house, the criteria for their choice and the top of the best models are presented below.
What is gas boilers
Gas boilers are considered effective, the necessary devices for the heating organization of a private house, apartments or cottages, if there is no central heating system.Device and principle of operation
The standard boiler includes a heat exchanger with a controller, a gas striking device, a gas unit, a circulating pump, a safety valve, a panel and a housing. It can have electronic su, diagnosis and protection. Each heating boiler is a complex adjustable system that converts burnt gas energy into a useful heat . It works simply. When the user sets the heating temperature of the room or water, the burner starts working. It begins to warm the liquid in the thermal exchange. After heating the fluid, the circulation pump spreads it along the contour. When cooled the tank, the process is repeated anew.
How to choose a gas boiler for a private house
Before you choose and buy a gas boiler in a private house, it is necessary to determine the type of boiler, the type of placement, the type of contour, the material of the heat exchanger, the combustion chamber device, the type of smoke removal, the type of gas burner, desired by the efficiency and the indicator of the minimum required power.
Outdoor or hinged
The difference between outdoor and wall boilers is to organize personal space. With a lack of place in the house, the wall apparatus is selected . However, its service life is less than that of the floor gas boiler heating.
Convection or condensation
From the type of boiler will depend on the principle of operation of the system and its effectiveness. The convection model accumulates the thermal energy indicator from gas burning in the combustion chamber. In this case, part of the heat goes into chimney together with the exhaust gas.
The condensation model of the boiler is more perfect, effective. It comes an additional heat exchanger that accumulates condenser heat. As a result, a 50 degree energy is accumulated in the thermal exchange, which goes to heated the direct and reverse contour line. In the second case, the efficiency is higher and lower fuel consumption. However, the cost of condensation models is higher than convection several times.
Single-mounted or double-circuit
One-connecting machine is needed only to heat the room. Double-circuit equipment warms water with room. The choice of the boiler for a given criterion must be carried out, pushing away from personal needs.
Heat exchanger material
The durability, reliability and efficiency of the model affects the heat exchanger material. Products made inexpensive. They are characterized by ease, plasticity, fear of temperature differences and strong corrosion exposure, despite the presence of a good anti-corrosion coating. Steel boilers serve no more than 15 years. Stainless steel boilers belong to a budgetary and middle class. Such products are durable and can be repaired.
Copper models expensive. They differ in thermal conductivity, resistant to rust. Work for about 18 years. Refer to the middle class. Durable to use. Capable to give warmly well.
note ! Cast iron models are the cheapest. They are capable of generating warmth. However, there are 90% efficiency. They differ in bulky. This fact complicates the installation process. There are such products for no more than 12 years.
On video : Choosing a gas boiler.
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The combustion chamber device and the types of smoke
According to the method of receipt of oxygen, which is required in the system to maintain gas burning and recycled fuel, there is a two-round gas boiler atmospheric and turbocharged.
Open combustion chamber and natural traction
Then oxygen for the operation of the boiler is taken out of the room, through the housing holes. The output of the recycled fuel is carried out through part of the traditional vertical chimney pipe. According to the safety technique, the functioning of such a boiler requires a chimney arrangement of at least four meters high. Because oxygen from the house is spent quickly with the equipment that has an open combustion chamber with a natural burden, then in such a space it is necessary to have well-equipped ventilation.Closed combustion chamber and forced traction
The boiler functions in this way: oxygen for home heating is taken from the street. Then, after passing the loop cycle, decay products are removed through a coaxy chimney. Such models with a forced product and a closed gas combustion chamber can be used in a room with poorly organized ventilation. . They are suitable for installation in the kitchen and in the bathroom. These are the only devices that may be put in apartment buildings.
Gas burners varieties
Gas burners in boilers are atmospheric closed. There are models with a burning stall and electronic ignition. Atmospheric gas burners operate from natural oxygen inflows. They have a simple design, low noise, high reliability and energy-dependence. Closed burners are used in turbocharged boilers. It is placed in a special chamber of the coaxial chimney. It launches the operation of a powerful fan and the entire heating system. It is difficult to arrange, has a high cost and an increased noise level.
By ignition type there are models of gas burners that work from electronics and automation. In the first case, the risi of the boiler carries out a high-voltage converter, and in the second - the user matches with a piezoelectric.
Kpd.
Efficiency coefficient is the ratio of volume Recessed fuel to the highlighting heat, the efficiency of the boiler. The optimal performance of the work is 92% of the efficiency. But, the efficiency when buying should be a penultimate selection criterion. It is necessary to pay attention only to the boiler indicator below 86%. If the equipment has such effectiveness, it means that it does not completely and fuel consumption will notice.
The minimum required power
You need to choose the gas model, last time, pushing out the power indicator. All modern models are heat produce. To protruding the average house without insulation in the suburbs, you need 1 kilowatt by 10 square meters. As a result, to heat the house in 100 square meters, 13.5 or 14 kilowatts are required (power reserve is 30% added).
note ! If there are many panoramic windows, doors, balconies and loggias in the house, the minimum required power should be considered with a power reserve of 50%. For more accurate data, use a special calculator.
Additional criteria and what else should be taken into account when choosing
When the boiler selection, it is necessary to take into account the reliability of gas supply and electrical supply. It is also necessary to take into account the cost of providing housing with warmth, remoteness from the city. It is worth thinking about the possibility of arranging the chimney, which would have the necessary height. Each factor should be considered separately.
The mounted boiler is in demand because it is compact. It can be hung anywhere, observing certain conditions. The wall boiler has a high level of automation. It is characterized by comfort. The turbated model is undemanding to the thrust. But, along with the advantages, every boiler has its drawbacks. They should also be considered when buying.
Top 8 best known manufacturers and models: characteristics, prices, reviews
The best manufacturers of boilers are Baxi, Vaillant, Navien, Protherm, ZhMZ and Condoord.
G. Azov boilers of the specified brands are compact, economical, safe and autonomous in operation . They do not need regular care. They do not need fuel refueling. Below is the rating of the best single-circuit and double-circuit models.
Single-mounted
Single-mounted gas boilers go with one thermal exchanger and connected to water. Apply only to dampen the room . If there is a need to obtain hot water, it is required to embed equipment in a boiler system that carries out indirect heating. While the coolant needs to be used technical fluid or antifreeze.Article on the topic: Electric boiler for the heating of a private house
BAXI ECO FOUR 1 24
Single-mounted wall gas model having a capacity of 24 kW. Suitable in order to organize heating in an apartment, a private house and in the country. It works from natural or liquefied balloral gas. Adjusted by flame electronics. Supplemented by an automatic diagnostic system. Suitable for the total gas pipeline and water supply. According to user reviews, it is distinguished by the presence of a liquid crystal display, a built-in flow sensor, a water filter and a compact housing in a length of 49 centimeters.
Protherm Panther 25 who
Protherm Panther 25 KTO (2015) 25 kW is characterized by compactness, built-in pump, heating up to 250 square meters and optimal combination of price and quality. It is considered the most reliable, economical and safe wall-mounted single-circuit boiler. . The presence of power in 25 kilowatt allows you to drop 250 square meters. Burns about 2800 cubic meters of gas per hour. Controlled electronically using the display. It comes with a 10-liter expansion tank and pump. It is enough to organize heating a three-story house. Water heats up to 85 degrees.
According to the reviews, the device is highly reliable, efficiency. It copes with a pressure pressure in a three-story building. It has energy dependence. Automation with the nanoscope functions from the AC network. Therefore, in places with interruptions in electricity it is better not to put it.
Attention ! The advantages are in the compactness of the installation, the capabilities of heating 250 square meters, installation efficiency, the availability of the pump and the built-in tank. Cons consist depending on electricity.
VIESSMANN VITOPEND 100 W A1HB 24 kW
A German cauldron, which has a reference quality, closed the combustion chamber and the efficiency of 91%. Different with the presence of separate heat exchangers. Designed to work at a working pressure of 3 bar. Performance is distributed between contours of a three-way valve with all protective systems. A special difference between the German boiler lies in the programmer. Using it, you can set the boiler settings for 7 days. As a result, you can lower the gas consumption.
The disadvantages of the model lies in the vulnerability to the voltage drop. The boiler must be necessarily connected to the voltage stabilizer. Rarely when the flame sensor or burner module can clog. The minus is the fact that the boiler needs to be regularly cleaning and replacing the gas filter.
BAXI DUO TEC COMPACT 1 24
One-connecting boiler with maximum thermal power in 24 kilowatts, wall placement and single-phase electrical network type. It is made of chromium, nickel, stainless steel. Equipped with a circulation pump. Its pressure is enough to serve a two-storey cottage.
Due to the fact that it supports two temperature range, it can be used in the heating system "Warm floor". The list of its advantages includes flexible adaptability of work, chimney characteristics, burner functionality, simple installation of boiler, ease of use and continuous electronic flame modulation. According to the response, the plus is the reduced content and the possibility of reconfiguring work under liquefied gas.
Rinnai Br UE30.
Reliable single-mounted model designed for 30 kilowatt. From the useful functions of the apparatus, it is possible to name the presence of a warm floor mode, a border tuning temperature, accelerated heating of the room and the preheating mode of the fluid.
The advantage of the unit, which is called users, is the availability of active gas and electricity savings, a weekly programmer, a night regime for a comfortable sleep and voice navigator. In addition, the device is controlled by a remote. Has high efficiency and increased environmental safety of recycled fuel.
Double-circuit
Dual-circuit boilers help to pull the room and heat the water. Better than one-contact gas boilers, since they are connected to two main systems and have several heat exchangers. . Water for household needs accumulates in the surface of the tank, flow heater or boiler. A significant disadvantage of the system is the lack of simultaneous operation of the contour.BAXI ECO 4S 24F
The advantages of the two-door model is the presence of 24 kilowatts, an efficiency of 92.9%, hanging on the wall, the heating of a room in 240 square meters, the possibility of connecting the warm floor and the optimal ratio of the criterion price and quality. A powerful two-year Italian boiler entered the list of the best thanks to performance, reliability. It is compact. Its dimensions are equal to 400 at 730 and 299 millimeters. Weigh the device 30 kilograms. It is heating 240 square housing meters. At the same time, it is able to warm water to perform everyday home needs. Its heating is 13.7 liters per minute to 25 degrees. It is suitable for work with a liquefied gas. It is built into its device a 6-liter tank with circulating pump.
Thanks to the efficiency and silence of work, the device will be able to warm the room, to provide it with warm water. In addition, it has autodiagnostics, protection against freezing, overheating and pumping blocking. There is gas control with lifting, modulation of flame, built-in filter for water and safety valve. A configured device work automatically. It does not require additional operator actions and special controls.
Attention ! According to reviews, the device has a high-quality assembly, quiet work, suitability for repair, ease of installation and reliable components. The disadvantage is the absence of energy consumption.
BAXI LUNA 3 240 FI 25
High-performance model that guarantees management comfort. It has a gas double bucky with modern electric wave, self-diagnosis mode, programming capability and a guarantor of high reliability of the boiler. The following advantage includes simplicity, maintenance. The boiler is supplemented with a large liquid crystal display with displaying all the information on the functioning of the device.
According to user reviews, the device is good because it has a smart self-diagnostic system and blocking. Equipped with bucki wall-mounted advanced protection against freezing. Supplemented by the press space and safe for ecology by a traction sensor.
Article on the topic: Electric boiler for the heating of a private house
Vaillant Turbofit VUW 242 / 5-2
Vaillant Turbofit VUW 242 / 5-2 23.7 kW is a German apparatus, a wall-mounted appart, having an adjustable modulated burner, forcibly working smoke. The device is designed for insulation of 240 square squares. Differs in a closed combustion chamber. The equipment is placed not only for insulation of the house, but also water supply. It is economically in work, its efficiency is 93.5%. However, the double-circuit wall boiler is hard to configure and install. Master help is needed. Familiar is not always ready to help. Spare parts are also expensive at repair.
The model is recommended for the heating of a private house with a difficult placement of chimney. It can be placed in a residential place.
According to reviews, the apparatus, like other single-mounted wall boilers, easy to use. May be placed in a small and quiet place. The main disadvantage is in the presence of expensive spare parts. Pluses are in the silence of work, ease of operation, classical assembly and efficiency of 93.5%.
Final price comparison table and reviews and selection of the best model
| Model | Efficiency,% | Maximum gas consumption, m3 per hour | DHW performance in liters per minute | Cost in rubles |
| BAXI ECO FOUR 1 24 | 91.5 | 1.6 (1,17) | 8.0 | 36550-40067 |
| Protherm Panther 25 who | 93. | 2.06. | 10 | 40590-58590 |
| VIESSMANN VITOPEND 100 W A1HB 24 kW | 93. | 2.77 | 14.7 | 39442-43359 |
| BAXI DUO TEC COMPACT 1 24 | 105.7 | 1,92 | 7. | 61634-84760 |
| Rinnai Br UE30. | 92. | 2,87. | 7.5 | 59900-89000 |
| BAXI ECO 4S 24F | 92.9 | 2.73 | 9.8. | 31200-43200 |
| BAXI LUNA 3 240 FI 25 | 90.8. | 2. | 8.0 | 48500-64930. |
| Vaillant Turbofit VUW 242 / 5-2 | 93.7 | 2.66 | eleven | 35000-43200. |
Installation of gas boiler heating
Installation of the heating gas boiler is carried out in seven stages:
- Initially, a wall mount is prepared.
- Then the pipes of the heating system are connected.
- After connecting the boiler to the water loop.
- Then the device is connected to the gas highway.
- The device is connected further to the power supply.
- Then the chimney is decorated.
- At the end, prepare for the first launch of the device.
Attention ! When installing the gas boiler, the heating must be taken into account the requirements of fire safety.
Why the gas boiler goes like?
Many users ask why heating gas boiler rushes. It can be fused for various reasons. In it can be clogged nozzles or a burner filter, a faulty thermocouple, chain contacts or an electromagnet. It may also have a lack of oxygen for gas incineration, reduced pressure in the highway. It is often the reason that the heating boiler swears and goes out, becomes an icy cap or chimney tube, a faulty fan or turbine.
As a result, the boiler is an indispensable equipment for heating at home, water heating and a complex-adjustable system. Select it easy. When buying, it is necessary to repel the excellent preferences, the purpose and technical characteristics of the device. You can also make a choice, pushing out from the list of the best devices.
