In many regions there are places that are characterized by unstable electricity supplies. This is a serious problem - today living without a stable power supply is extremely uncomfortable. The fact is that most of the systems installed in your own home depend on electricity - and if there are problems with it, you will have to deal with it.

One of the systems traditionally tied to electricity is heating, which, in the absence or unstable supply of electricity, will not be able to work properly. There are many options for heating equipment - there are various options for solid and liquid fuel boilers, when using which the problem with electricity disappears by itself.

However, if a gas main is connected to the building, then the most best solution there will be a gas boiler. Most modern gas boilers are tightly tied to electricity - but you need to get rid of this dependence if the electricity supply is unstable. Help solve the problem, which will be discussed in this article.

Types of non-volatile boilers

All non-volatile gas boilers heating can be divided into two main groups:

1. Combined. Such devices are produced only in a floor format, which is directly related to the large weight of the equipment, which indicates the impossibility of creating and using wall-mounted non-volatile gas boilers. combined type. There are single-circuit and double-circuit combined boilers - the first option is intended only for heating, and the second allows you to also provide residents with hot water.
2. Gas. This category of devices works only due to gas. There are devices with one and two circuits, and the format of the boiler can be both floor and wall.

Choosing a non-volatile boiler

When choosing a boiler that does not depend on electricity, a number of factors must be taken into account:

• Ability to work with any method of coolant circulation. Natural circulation in the heating system is provided by physical laws, due to which cold water is displaced by hot water. Forced circulation is provided by a pump that creates the necessary pressure in the circuit, but requires electricity to operate. A good boiler will be able to work with equal efficiency both with natural and forced circulation - but if we are talking about not being dependent on electricity, then you need to select a unit suitable for working with gravity circulation.

• Ability to work with any heat carriers. Most often, ordinary water passed through a filter is poured into heating systems, but sometimes the circuit is filled with antifreeze, which has an increased resistance to cold. A good non-volatile wall-mounted double-circuit gas boiler can work with both the first and second options.
• Pressure in the gas line. The standard pressure value for domestic gas pipelines is 1.270 MPa, but it always makes sense to clarify this point. The documentation for the boiler always displays the pressure at which it is able to work stably, so you need to check both values ​​for compliance.
• Possibility of retrofitting. Most boiler models are suitable for conversion to another type of fuel. For example, in many solid fuel units it is possible to replace the igniter and install gas burner.
• Operating pressure range. When cold weather sets in, the pressure in main gas pipeline may decrease - which means that the operating pressure in the boiler will also drop. This moment must also be taken into account when choosing a boiler and choosing just such a unit that can work in such conditions.

All wall-mounted double-circuit non-volatile gas boilers are highly reliable and easy to operate. In addition, if properly installed, such equipment has a high degree of safety. Thanks to the built-in automation emergency situations the boiler just shuts off. Also, the design of the boilers includes a thermostat that monitors the temperature of the coolant and automatically starts the heating mode if necessary.

On the market you can find a lot of models of both domestic and foreign production. Choice of the most suitable option cannot be called obvious - for example, foreign devices are more economical and efficient, but they are also more expensive. Domestic non-volatile wall-mounted gas heating boilers are also quite reliable, cheaper and often fit much better into domestic realities.

Installation

Any gas equipment can be installed and put into operation only if there is an installation project and after agreement with gas service. If the project is executed with errors, or if they were made during installation, the boiler will not be allowed to use.

In order for the boiler to work normally, a number of conditions must be met:

• A positive temperature must be constantly maintained in the boiler room;
• During the installation of the boiler, fire safety regulations must be observed (for example, the walls near which the boiler is installed must be protected with non-combustible materials);
• When installing the boiler on your own, for its first start-up, you must definitely invite a specialist who can make sure with an experienced eye that the boiler is installed correctly and that there are no errors in its operation.

When designing a boiler installation scheme, you need to think not only about the unit itself, but also about the installation of a chimney system. It is necessary to install a chimney in accordance with a number of requirements, which depend on the characteristics of the boiler and the characteristics of a particular building. Each individual boiler must have its own chimney, but if necessary, several boilers can be reduced to one chimney channel, the cross section of which corresponds to the sum of the cross sections of the outlets of each boiler.

According to the standards, if the chimney is led to the roof and installed at a distance of 1.5 meters from the ridge, then the height of the pipe must exceed 0.5 meters. In the event that the distance between the ridge and the edge of the pipe is from 1.5 to 3 meters, the chimney must be brought out at least on the same level with the ridge.

It is recommended to make the chimney completely straight, but if this is not possible, then several turns can be made (no more than three along the entire length of the chimney duct). The total length of the chimney must exceed 5 m. From above, the chimney is closed with a metal fungus, which prevents dirt and moisture from entering the structure.

A private version of the chimney is coaxial pipes, the possibility of using which is determined individually (it is advisable to consult a specialist). Coaxial chimneys can be installed at a low height and lead directly to the wall. Installation is inexpensive, and its technology is extremely simple.

Among the disadvantages of coaxial chimneys, one can note some dependence on forced air draft, which is created by an electric fan. When installing such a chimney in combination with a non-volatile gas boiler, the reliability of the system will be reduced. In addition, condensate constantly appears in coaxial chimneys, and the difficulty of removing it is also a disadvantage.

Popular boiler models

As mentioned above, there are many different non-volatile boilers with a wide range of characteristics and additional features. In all this diversity, there are several models that are most in demand among users. It is worth familiarizing yourself with these models in order to have a clear example of the most sought-after characteristics.

Boiler Viadrus G36 (BM)

This model of a copper is issued with a power range from 12 to 49 kW. It is necessary to select a specific modification taking into account the requirements for individual characteristics heating system and buildings.

Viadrus G36 is a wall-mounted gas boiler that can work without electricity. The design of the boiler has a special thermoelement that ensures uninterrupted operation of the gas valve. The system is also equipped with a sensor that prevents various abnormal situations arising from traction.

The boiler of this model is quite efficient and can heat the coolant to temperatures from 45 degrees. If necessary, a circulation pump can be connected to the boiler, which provides forced circulation of the coolant in the system. If the supply of electricity in the local network is not stable, then the system should be supplemented with a good uninterruptible power supply.

It is best to install such a unit together with a separate chimney, but if this is not possible, then a coaxial pipe is quite suitable. The boiler has special pipes to which an indirect heating boiler can be connected to provide residents with hot water.

Boiler Protherm Bear TLO

Another popular line of non-volatile boilers is Protherm Bear TLO. The power of the units of this line varies from 18 to 35 kW, and both main and liquefied gas can be used as fuel. Such boilers have a lot of positive characteristics, which determines their popularity among users.

Protherm boilers can be used in heating circuits open type. The design of the boilers includes a piezo ignition system, an open combustion chamber, a stainless steel gas burner and a cast iron heat exchanger. All these elements and high-quality assembly allow boilers of this brand to provide efficiency from 87% to 92%.

Power adjustment is carried out stepwise. It is possible to transfer the boiler to summer and winter mode. Fine tuning and adjustment of the boiler operation is carried out automatically due to the built-in electronic unit. The draft level of the chimney is also adjustable.

What is important, Protherm devices have a lot of protective features. So, the heat exchanger is reliably protected from the effects of condensate. The boiler has built-in overheating protection, a system that controls the level of the flame, and a device that monitors the pressure and temperature of the coolant in real time, and also maintains them at the proper level.

All these characteristics allow us to talk about the high quality of these boilers. In addition to the advantages described above, Protherm Bear TLO boilers are distinguished by their small size, pleasant design, as well as ease of installation and use, which even an inexperienced owner can handle.

Conclusion

Non-volatile boilers are the optimal solution for not paying attention to interruptions in the supply of electricity. It is necessary to select the boiler depending on the specific operating conditions so that it can fully show its capabilities.

Non-volatile floor gas boilers are heating equipment that can operate without being connected to a power source. They do not need an electrical network, which makes it possible to operate in buildings without electrification. They are also suitable for heating households in countryside, where power outages are frequent due to the depreciation of electrical networks.

Advantages and features of non-volatile boilers:

• Provide heat in the complete absence of electricity;
• Simple design without unnecessary electronics;
• Fully automatic operation;
• No extra electricity costs.

Non-volatile boilers are used in many Russian households. They are characterized by stable operation and do not require unnecessarily frequent maintenance. To ignite the gas, they use pilot burners, ignited using a piezo ignition system. Boilers automatically support certain temperature coolant, creating a comfortable atmosphere.

Non-volatile boilers are divided into single-circuit and double-circuit. Single-circuit models are simple, they are designed only for space heating. Their dual-circuit counterparts are equipped with additional heat exchangers for the preparation of hot water. Thanks to this, consumers get rid of the need to buy water heaters. There is also a division into models with open and closed combustion chambers - the latter require coaxial chimneys that provide air intake and removal of combustion products at the same time. Open chamber models connect to traditional chimneys and require an inflow fresh air into the room.

Floor-standing non-volatile gas boilers are commercially available in a variety of models from Russian and foreign manufacturers. When choosing heating equipment, be guided by the number of circuits, thermal power and performance of the DHW circuit (if any), as well as the type of heat exchanger (steel or cast iron). Non-volatile gas boilers are a reliable and elegant solution for those who want to decouple heating from the mains and ensure its stability. Many models of these boilers can run on liquefied gas, which allows you to heat buildings built far from electrical networks and gas mains.

You can buy a floor gas non-volatile boiler in the Teplodvor online store. For the services of customers, we have prepared a large catalog, which presents heating equipment from well-known brands. Delivery services are provided - in Moscow, the Moscow region and throughout Russia.

Alas, even in the Moscow region, not all cities and towns have a high-quality and reliable power supply, to say nothing of settlements remote from the center. The voltage in country houses often differs from the nominal voltage by tens of percent, emergency interruptions in the supply of energy can last for weeks. In such conditions, it is very reckless to create a heating system based on a volatile boiler. It is wiser to use a non-volatile methane boiler that does not consume electricity from the network. What are the features of this technique and what does the market offer?

Application area

Non-volatile gas-fired boilers are used in heating systems with natural or forced circulation of the coolant, as well as in hot water systems. Prepared water can be used as a coolant, or - if it is not prohibited by the manufacturer - household antifreeze such as Hot Blood, Dixis, Warm House-65, Olga. Most often, non-volatile gas boilers are operated in the residential sector - for heating apartments, country houses permanent residence. Less often - they are used for heating small commercial buildings.
All devices that have successfully passed certification in the Russian Federation operate on natural gas with a nominal pressure of 1274 Pa (130 mm of water column) in accordance with GOST 5542–87. When replacing nozzles (main burner and igniter), some models can operate on liquefied (cylinder) gas.

The most widespread in the Russian Federation are single-circuit non-volatile boilers designed for heating. The heat exchangers of the heating circuit are made of cast iron or steel. Models of boilers with cast-iron heat exchangers are designed for 20–25 years of operation, the service life of more affordable boilers with steel heat exchangers usually does not exceed 10–15 years.

Double-circuit models are also used - the presence of a second circuit allows you to simultaneously use them for both heat supply and domestic hot water supply (with a low intensity of water consumption). The secondary circuit coil, as a rule, is made of a copper pipe; its heating occurs due to contact with the coolant.

Injection atmospheric burners are used as burners in non-volatile gas boilers.

Safety, reliability, simplicity and ease of operation of non-volatile boilers are largely ensured by the use of modern non-volatile automation units. In boilers with imported (primarily Italian and German) automation, the most significant savings in gas consumption are achieved due to the automatic modulation of the burner power. Boilers with Russian-made automation usually turn out to be the most attractive at the purchase price.

The user adjusts the temperature by setting the boiler water thermostat based on personal feelings "hot - cold". But some models can also be paired with a room thermostat mounted in the control room, which monitors temperature fluctuations and gives commands to reduce or increase the gas supply to the main burner.

In areas where in winter the gas pressure at the entrance to the house is significantly reduced, experts strongly recommend the use of non-volatile boilers that can operate stably when the pressure drops (up to 300 Pa and below), without turning off, but only proportionally reducing heat output. It is unacceptable to leave the operating device unattended for a long time, since in the event of an emergency shutdown of the gas and the boiler stopping, the heating system may defrost or other property will be damaged by the cold.

Placement and installation of a non-volatile boiler, as well as gas supply to it is carried out by a specialized construction and installation organization according to a project agreed with the operating enterprise / gas industry trust. At the same time, the requirements of the equipment manufacturer for air temperature and ventilation of the room, as well as the requirements for the characteristics of the enclosing structures, next to which the boiler is mounted, must be strictly observed. Self-activity here is unacceptable, as it is fraught with serious consequences, up to the complete destruction of a heated house as a result of a gas explosion!

During the installation of a non-volatile boiler, the closest attention should be paid to chimney. The device of the chimney to which the device is connected must comply with SP 42-101-2003 "General provisions for the design and construction of gas distribution systems", meet the requirements of the "Fire Safety Rules for residential buildings, hotels, hostels, buildings of administrative institutions and individual garages. PPB-08–85” and the requirements of the “Rules for the production of work and repair of furnaces, chimneys and gas ducts”.

The chimney, as a rule, should be located in the internal main wall of the building (although options are possible). Its minimum open area is determined by the boiler manufacturer and in most cases should not be less than ½ × ½ brick. The height of the chimney above the roof of the building depends on the horizontal distance from its axis to the ridge and should be:

♦ not less than 0.5 m above the ridge, if the pipe is located at a distance of up to 1.5 meters from the ridge;
♦ not lower than the level of the ridge, if the pipe is located at a distance of 1.5 to 3 meters from the ridge;
♦ not below the line drawn from the ridge down at an angle of 10° to the horizon, if the pipe is located more than 3 meters from the ridge.

It is important that the smoke channel is strictly vertical, smooth, even, without turns and narrowing. Its height from the lower level of the apparatus must be at least 5 meters. Connection of other heating devices to the chimney of a non-volatile boiler is not allowed.

Some models of non-volatile boilers, including parapet models, have a closed combustion chamber and communicate with the environment using a horizontal coaxial chimney. It is mounted in through hole in the outer wall and is supplied with a windproof cap. The coaxial chimney simultaneously carries out both the removal of flue gases and the supply of air for combustion.

Using a coaxial chimney allows you to install non-volatile boilers in rooms without a vertical chimney. This significantly expands the scope of non-volatile boilers. However, during operation, non-volatile boilers with a coaxial chimney are more often than devices connected to vertical smoke channels, are turned off due to gusts of wind blowing out the flame of the burner, or freezing of the gas duct (especially models without modulation, operating in the “ON / OFF” mode and allowing condensation to form in the chimney).

Often problems arise due to the destruction of the masonry of the wall through which the coaxial chimney passes through the condensate.

When using a heating system with natural circulation coolant the heated coolant from the boiler supply pipe rises through pipes to the upper floor, where it passes through the heating radiators, then descends to the lower floors, where it also gives off part of the thermal energy in the radiators, after which it enters the return pipe of the heat generator. Such heating systems are also called gravitational.

It should be noted that it is necessary to create a heating system with natural circulation of the coolant "with knowledge of the matter", correctly selecting the diameters of the pipes, maintaining the necessary angles of inclination in the horizontal sections of their laying. When building a system with natural circulation, it is necessary to take into account the requirements and recommendations of the boiler manufacturer, since the guarantee for the device depends on this.

When installing a non-volatile boiler in a heating system with forced circulation of the coolant system configuration, pipe diameters and their slopes during installation are usually not so critical. But in this case, the pressure in the heating system in working condition should not exceed the allowable one. In order to avoid destruction of the boiler heat exchanger, it is necessary to provide a safety valve in the system.

Without energy

For the operation of the automation of a non-volatile boiler, electricity supplied from outside is absolutely not required. In the simplest case, the control of the gas valve of the boiler is carried out due to the voltage that occurs when the thermocouple is heated, which is in the flame of the pilot burner, which, in turn, is manually ignited using a piezoelectric element. The voltage on the coil of the solenoid gas valve keeps it open, providing gas to the main and pilot burners. When the ignition burner goes out, the gas valve instantly stops the gas supply to the boiler, thus ensuring complete safety in operation.

What does the market offer?

When choosing a technique, it is logical to first consider the possibility of using a non-volatile boiler with cast iron heat exchanger. Unlike boilers with steel heat exchangers, where it is necessary to constantly maintain the temperature of the heating water above the dew point, when operating cast iron boilers, even at a heating water temperature of about 30 ° C, there is no fatal damage to the heat exchangers by low-temperature corrosion.

Most models equipped with a cast-iron heat exchanger are supplied to Russia from EU countries. European technique trademarks- these are Alphatherm Delta (Hungary), Alphatherm Beta (Slovakia), Attack (Slovakia), Beretta (Italy), Electrolux (Sweden), Protherm (Slovakia), Viadrus (Czech Republic), Fondital (Italy).

So, floor-standing non-volatile gas boilers Electrolux FSB-P are supplied in the power range from 14 to 60 kW. This is a fairly new line of high efficiency floor standing boilers with a cast iron sectional heat exchanger made of lamellar gray cast iron with high performance.

Thanks to the application new technology DROP STOP The heat exchanger of the Electrolux FSB-P boiler is resistant to hydraulic shocks and thermal deformations.

The use of NANO FLAME technology, even at a gas pressure of 350 Pa, ensures stable ignition and long-term uninterrupted operation of an atmospheric gas burner. This technology allows the boiler to continue to work even when the pressure in the line drops to 220 Pa.

The burner of the Electrolux FSB-P boiler is protected from burnout by preventing the surface of its flame tubes from heating to critical temperatures.

Manufacturers of non-volatile gas boilers with cast-iron heat exchangers from Russia and the CIS countries often create devices using imported components, which makes it possible to obtain equipment of sufficiently high quality, the price of which is approximately 10-15% lower than that of imported products with similar characteristics.

As an example, we can cite a line of cast-iron non-volatile boilers "Titan N" from CJSC "Gaztekhprom" (Ryazan) with a nominal heat output of 25 to 60 kW, which are equipped with gas valves and control units SIT (Italy) with a full safety group corresponding to all domestic and European requirements.

Coppers "Titan" are completed with atmospheric torches of firm POLIDORO (Italy) with fire pipes from stainless steel.

Here we also mention the Taganrog boilers "Lemax Leader GGU-ch" with a capacity of 19 to 55 kW, equipped with a VIADRUS heat exchanger (Czech Republic) made of high-quality gray cast iron 4 mm thick, as well as gas boilers Siberia KCHGO with an imported cast-iron heat exchanger, burner and automation unit, manufactured in Russia at the enterprise CJSC Rostovgazoapparat in the city of Rostov-on-Don.

Separately, it is worth mentioning cast-iron floor gas boilers KCHG from LLC Servisgaz, Ulyanovsk. These boilers use a high efficiency cast iron heat exchanger with an acicular convective heating surface, heat resistant slotted stainless steel main burners. The gas pressure stabilizer built into the gas block ensures uniform combustion of the gas-air mixture on the main burners with a constant heat output, regardless of the gas pressure in the network, without requiring adjustment.

Well-known to many buyers are KChM-5-k boilers from OAO Kirovsky Zavod, equipped with non-volatile SABK automation (version 17; 23; 36). Their undeniable advantage is their versatility - the boiler, originally designed to run on gaseous fuels, can later be easily converted to run on solid or diesel fuels, and even on waste oil.

To the main advantages of gas floor standing non-volatile boilers with steel heat exchangers can be attributed to their small weight, which is important when installing equipment in houses with "weak" walls and ceilings, increased resistance to hydraulic shocks and thermal loads, low inertia (devices quickly respond to changes in heat demand) and even more democratic than boilers with cast iron heat exchangers, price.

Among the imported equipment, we note single-circuit non-volatile floor-standing gas boilers Dakon of the P lux series, the maximum power of which is in the range of 18–50 kW. The devices are designed for heating various premises and can be integrated into both natural and forced circulation systems. The internal space of the steel heat exchanger of P lux boilers is formed by sections with nested economizers for the fullest use of the thermal energy of the combustion products.

DAKON P lux boilers are equipped with HONEYWELL CVI automatics and are manufactured in two modifications - “ON / OFF” (modification Z) and with two-stage power control “HIGH-LOW” (modification HL). One of the functions of the P lux boiler is a quick stop when using draft regulator, it significantly increases its safe operation.

Interesting models of non-volatile floor-standing boilers "Wolf KSO", equipped with a steel heat exchanger, are presented in the Russian Federation by Protherm. The boilers are assembled at the plant in Taganrog under the close attention of Protherm employees, which, according to the manufacturer, guarantees high quality and reliability. It is worth paying attention to AOGV - Beretta with a heat output of 11 and 17 kW, which were developed in accordance with the requirements of GOST 20219 "Household gas heating appliances with a water circuit".

In Russia, the positions of domestic manufacturers of non-volatile floor-standing boilers with steel heat exchangers are traditionally strong.

For example, the Russian non-volatile heating devices of Zhukovsky are well known. machine-building plant- single- and double-circuit heat generators of the "Economy", "Universal" and "Comfort" series with heat output from 11 to 63 kW. The devices are reliable and durable. The use of a steel heat exchanger with turbulators, a modern atmospheric slot burner and high-quality automation units in the apparatus, according to the representatives of the plant, made it possible to improve environmental parameters and increase their real efficiency.

All non-volatile boilers of the Zhukovsky Machine-Building Plant are certified by the State Standard of Russia, have a sanitary and epidemiological conclusion and a decision of the Gosgortekhnadzor of Russia for manufacture and use.

In the city of Borino, Lipetsk Region, a factory of household gas equipment Since 1997 OJSC Borinskoye has been producing non-volatile boilers equipped with a steel heat exchanger with a capacity of 12.5, 25, 31.5, 40, 50, 63, 80 and 100 kW. The plant provides warranty and post-warranty maintenance of its equipment, a "wide geography" of service centers and quite an adequate price both for the boiler itself and for its maintenance and repair.

Demand among buyers is enjoyed by thermal equipment Siberia manufactured by CJSC Rostovgazoapparat. In terms of thermal performance and design, these non-volatile boilers are not inferior to many foreign analogues. Siberia boilers use a carbon structural steel heat exchanger with a developed heat exchange area, Eurosit automation, and a WORGAS burner. Boilers are resistant to large gas pressure drops, have high efficiency. Basalt fiber is used for thermal insulation of the boiler.

A variety of non-volatile boilers with a steel heat exchanger is considered to be single-circuit and double-circuit parapet boilers. They are equipped with a closed combustion chamber and connected to a horizontal coaxial chimney. The boiler is mounted on the floor outer wall, in which a hole is previously made (with a diameter of about 300 mm) for the release of a coaxial chimney.

V large volume parapet boilers are delivered to Russia from Ukraine. As an example, we can mention DANI parapet AKGV 7.4-U-S (new) - a double-circuit parapet gas boiler with a sealed combustion chamber with the removal of combustion products through a horizontal chimney. This model is an updated series of Dani parapet boilers with the ability to connect to the heating system both on the right and on the left side. Supplied with a coaxial chimney kit.

We also note the Ukrainian parapet boilers "ThermoBar KS-GS-7.0 S" (OJSC "Bar Machine Plant"), characterized by a long service life and an efficiency of at least 90%. The operating pressure of the boilers up to 2 kgf/cm² allows them to work with natural and forced circulation of the coolant. The boilers are equipped with a multi-section atmospheric stainless steel burner.

Parapet boilers of Impulse and BeleTo trademarks are spared from many shortcomings of parapet boilers from other manufacturers. Their heat exchangers are made of anti-corrosion steel 3–4 mm thick, which significantly increases reliability and service life (in some other parapet boilers, the heat exchanger is made of steel only 0.8–1.2 mm thick).

The BeleTo boiler can take combustion air from both outside and indoors. When taken from the room, air is sucked into the boiler body from above, and not from below, which prevents clogging of the burner. Thanks to the two-section burner, the Impulse boiler has a power control range from 20 to 100%, and the BeleTo boiler 40 -100%, which is important for the Russian winter with its wide range of outdoor temperatures during the heating period.

We hope that this information will certainly help you. We wish you success with the repair and arrangement of your home! We will be grateful for the likes in social networks, and of course subscribe - there will be many more interesting things.

The choice of a gas boiler without the lack of certain knowledge about these units is difficult. There is always a risk of purchasing a device that does not meet the requirements. You have to rely on experts. But there are risks here too - recently there have been too many "professionals" who consider themselves true gurus, but do not have experience and knowledge. In this review, we will tell you how to choose non-volatile gas boilers, and at the same time we will tell you about the most popular models - you can buy them in domestic online stores.

Features of non-volatile boilers

Heating boilers are divided into two broad categories - volatile and non-volatile. The first has many advantages:

• More accurate temperature control.
• More service features.
• Ability to work on the program.
• High level of security.

There are also disadvantages - they create additional costs for electricity, they have too fragile electronic filling, they do not work in the absence of electricity.

It would seem that having a modern double-circuit boiler in the house is cool and convenient. But behind the convenience lies the need to have an auxiliary source of electricity. The role of such sources are generators and uninterruptible power supplies on batteries. In any case, the consumer will face additional costs for fuel and batteries.

Non-volatile heating boilers are able to work without electricity. They use mechanical control systems that control the temperature of the coolant and the operation of all nodes. Their efficiency index may be lower than that of electronic models, but there are also quite energy-efficient samples (such distortions are observed in all lines of heating equipment).

Advantages of non-volatile gas boilers:

• No dependence on power sources - if the lights go out in the house, the heating will continue to work.
• A simpler internal device - without flimsy electronics that are not resistant to power surges.
• They can work both for heating and for hot water supply - double-circuit gas boilers are on sale.
• The ability to work in homes without electrification - for example, in rural areas or in the outback.

Many well-known brands are engaged in the release of non-volatile models - these are Protherm, Lemax, Baxi, MORA-TOP, Atem, Electrolux and many others. Both floor and wall models are on sale, including gas boilers with cast iron heat exchangers.

Non-volatile wall-mounted double-circuit gas boilers are rarely found on sale - most often their floor counterparts are presented in the windows.

Popular Models

A gas boiler without electricity is a smart choice for those who do not want to mess with electronics. The formula “no light - no heating” is unacceptable for many consumers, so non-volatile heating equipment was developed for them. Consider the most popular and rating models.

Before us is a fairly powerful outdoor sample. Its power is 35 kW, which corresponds to up to 350 square meters. m of heated area. This is a non-volatile single-circuit boiler with a durable cast-iron heat exchanger, designed to work with natural gas. Its efficiency is up to 92%, the maximum flow rate is up to 3.9 cubic meters. m/hour. The temperature of the coolant in the circuit warms up to +85 degrees.

The gas boiler does not require a connection to electricity and has extremely simple controls - a thermometer with a pressure gauge is visible on its panel, as well as a knob for adjusting the level of heating of the coolant. According to user reviews, the device is stable and does not require any control. The model does not highlight unpleasant odors, can operate at reduced pressure, ensures the rapid achievement of the required air temperature in heated rooms.

This non-volatile boiler was created by the industry leader - Protherm. It is designed for floor installation and has a thermal output of 16 kW. The device can operate on only one type of gas fuel - natural gas. The heated area is up to 160 sq. m, Maximum temperature in the heating circuit - up to +80 degrees. The pressure in the system must not exceed 1 bar.

• Completely non-volatile operation scheme.
• Two-way steel heat exchanger - responsible for efficiency (up to 92.5%).
• Gas protection.
• Overheat protection.
• The pressure in the gas line is up to 14 mbar.

The weight of the device is 46.5 kg.

This single-circuit floor non-volatile unit is not a boiler or a rocket - it is a gas boiler from a domestic developer. With a power of 11.6 kW, it can heat up an area of ​​​​up to 110 square meters. m. Due to its elongated shape, it is compact and suitable for installation in small boiler rooms. A small city house or a country cottage building is the main scope of this unit.

The main feature of this non-volatile boiler is that it can operate on two types of gas fuel - natural and liquefied gas. In the latter case, a reconfiguration associated with the installation of jets will be required. Natural gas consumption is up to 1.3 cubic meters. m / h, liquefied - up to 0.86 kg / h. The temperature of the coolant in the circuit can reach +90 degrees.

Despite the Russian origin of the gas boiler, it is built on the basis of the Italian Eurosit automation.

Solid non-volatile boiler from famous brand. Is different modern design case and good technical characteristics. The gas boiler is built according to a single-circuit scheme with a cast-iron heat exchanger. It can run on natural gas with a consumption of up to 3.68 cu. m / h and on liquefied gas up to 2.69 cubic meters. m/hour. The model turned out to be hardy, it remains operational when the pressure in the circuit rises to 4 bar.

The cast iron heat exchanger of the non-volatile gas boiler from Baxi is resistant to thermal overload and corrosion. It provides fast heating of the coolant, and its solid heat capacity prevents its rapid cooling. The model is reliably protected from overheating, equipped with protection against gas extinction and a safety valve. A little embarrassing is its inflated price - an average of about 50 thousand rubles. But this Baxi is one of the most reliable brands in the world.

Before us is a non-volatile boiler, created according to a double-circuit scheme. It provides not only heat, but also hot water. The device does not need an electrical network and a traditional chimney - combustion products are removed through a coaxial chimney that goes right outside the wall. Automation on board is mechanical, non-volatile, different high level reliability. Thermal power the device is 10 kW, the heated area is up to 100 square meters. m.

The DHW circuit in a non-volatile boiler turned out to be not the most productive - up to 3.8 l / min at ∆t = 35 degrees. The pressure in the shower may be weak, but it will still be possible to take hygiene procedures. The primary heat exchanger in the device is made of durable steel, the secondary one is made of high-quality copper. This combination provides good corrosion resistance. Type of heating boiler - parapet, with a coaxial chimney outlet outside the wall. The ignition here is non-volatile, with batteries.

The presented gas boiler is very similar to those models that were produced back in the days of the Soviet Union. It is made in a rounded case, standing on three metal legs. The view is not the most modern - it is inherited from the old days. The chimney is connected through the upper central part. The scheme of work is non-volatile, with two circuits for heating and hot water. The affordable cost, which is about 17 thousand rubles, is also pleasing.

The performance of the hot water circuit is small - up to 3.5 l / min, this is enough for only one consumer. Natural gas consumption does not exceed 1.76 cubic meters. m / h, liquefied gas - 1.21 kg / h. The maximum heated area, according to the manufacturer, is up to 200 square meters. m. It looks extremely strange, since the indicator does not correspond to the power of the unit and the requirements for a small margin (usually 10-20% is left).

At first glance it may seem that this is a floor-mounted water dispenser. But in fact, this is a double-circuit floor-standing non-volatile gas boiler built according to a non-volatile scheme. It is equipped with an open combustion chamber and a steel primary heat exchanger. The secondary heat exchanger preparing hot water is made of copper. With a unit power of 10 kW, the capacity of the DHW circuit is 4.1 l / min. The heated area is up to 100 sq. m.

Other features of the gas boiler:

• The simplest control.
• Overheat protection.
• Gas control system (will prevent its leakage when the burner is attenuated);
• Efficiency - up to 90%.
• Mechanical non-volatile control.
• Natural gas consumption - up to 1.11 cubic meters. m/hour.

Great model for country house or cottages.

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A non-volatile gas boiler is recommended for areas with unstable power supply. Modern equipment connected to the power grid often breaks down and fails due to power surges in the network. This can become a serious problem in winter time. So that the heat in the house does not depend on the vagaries of the power grid, consumers choose heating devices that work without electricity.

What are non-volatile boilers?

Combined non-volatile boilers operating on two types of fuel are available only in the floor version. Gas heaters powered by gas are available in two versions:

• Floor. This option is more popular than the wall option. Boilers that work without electricity are preferred by the owners of private houses. The floor-standing type of equipment has a simple device and is available in a wide range of capacities. There are heaters that can heat more than 200 m². They are installed in a special room with good forced ventilation.
• Wall. These models are chosen by consumers who cannot allocate space for a furnace. Manufacturers not so long ago began to offer the market wall-mounted non-volatile devices. They are good for their compactness, are equipped with coaxial chimneys and are in no way inferior in performance to their floor counterparts. wall variant usually choose for a small area.

What are the features?

Previously, if the gas heater was not connected to the mains, it lost its functionality and safety. Much has changed today. Modern boilers that do not depend on electricity networks have an additional device that generates electricity - it works from the heat released during the combustion of fuel. The resulting energy feeds complex automatic systems providing stability and safety of work.

In non-volatile systems, there is no forced circulation of the coolant. The latter circulates under the influence of natural forces, it moves according to physical laws. If there are problems with electricity, circulation pumps cannot be used - the stability of the heater depends on the constancy of the coolant pressure. They produce two types of devices that work without electricity:

• single-circuit - they are bought to organize heating for a house or apartment;
• double-circuit - for heating, in parallel they provide the house with hot water.

Manufacturers also offer parapet models. A parapet boiler is a low-power apparatus. It has a closed combustion chamber. Suitable for small spaces. It can be with volatile or non-volatile automation.

Principle of operation

The autonomous heater has an igniter and a main burner. The igniter is pre-ignited, then the main burner ignites, which heats the coolant to a temperature set by the user. Having reached the set value, the device stops the fuel supply. As soon as the temperature drops to a critical value, the gas supply begins, which ignites from a burning igniter. In the absence of traction, the fuel supply is automatically cut off. In the system of the heater, independent of the mains, there is expansion tank, which is necessary for a liquid expanding due to heating. Ignition is carried out using a piezoelectric element, which is triggered by pressing a button.

Advantages

• The ability to work without electricity is their main plus. There is no need to do wiring, install a socket, this saves money.
• Simple design and safe use.
• Versatility - suitable for heating houses and apartments of different sizes.
• Silent operation - no pumps making noise.
• High efficiency.
• Durable heat exchangers.

Flaws

• It is not possible to achieve full circulation in the system. There can be many reasons, for example, the calculation of the thickness of the pipes. In such a system, it is extremely important to correctly calculate the diameter of the pipes and install them at a special angle. As a result, uneven heating of the room is possible.
• For correct operation, a chimney with strong draft is required. Lack of draft will cause the equipment to stop, the reverse draft valve will operate. The chimney must create a vacuum in the furnace from 16 to 20 Pa.
• Efficiency at the level of 90%, the average volatile boiler has an efficiency of about 93%.
• The temperature is controlled manually.

How to choose?

It is not so easy to choose a non-volatile boiler of foreign or Russian production on the market - there are too many brands, models, and design options. Imported ones are considered more economical, domestic ones are more affordable and better adapted to operating conditions. When choosing a model, it is necessary to take into account the pressure in the gas pipeline, at what minimum pressure a particular model is able to function. Next, the power is determined - 1000 W per 10 m².

When choosing a model, it is important to pay attention to the material of the heat exchanger. There are copper, steel, cast iron. Preferably - cast iron, it is stronger than steel and it has a longer service life. Cast iron heat exchangers can last up to 30 years. The walls of cast iron elements are thicker than those of steel counterparts, and they are more resistant to corrosion. Another criterion worth paying attention to is that a device that does not depend on electricity cannot be with a closed combustion chamber. Turbocharged models do not work without electricity, as they need forced circulation of the coolant, air injection and exhaust gas removal.

Non-volatile or volatile - which is better?

In volatile models, unlike their non-volatile competitors, there are:

1. Circulation pump to ensure the movement of the coolant. It excludes air locks and uneven heating.
2. Fan for forcing outdoor air into the chamber of turbocharged boilers.
3. More advanced automation that selects the most economical modes for the device. It is possible to program the operation taking into account the time of day and days of the week. The operation of the boiler is controlled by internal thermostats located in the rooms.

Thanks to circulation and forced draft, less stringent requirements apply to energy-dependent versions:

• there are no strict requirements for room ventilation;
• you can use a closed expansion tank, placement is free;
• do not need to comply with slopes;
• It is allowed to use pipes of small diameter.

Can a volatile heater work without electricity? No, during a power outage, the device does not work, and the house remains without heat. This is the only downside. There is a solution, but it requires additional costs - connecting a generator. It turns out that volatile models are more perfect and convenient to use, and if there is a reliable power supply, then the choice would be unambiguous. Non-volatile analogues are indispensable in situations where uninterrupted and high-quality power supply cannot be provided.

Manufacturer's choice

Having decided on the type of boiler - single or double-circuit, wall-mounted or floor-standing, it remains to choose a brand. The reliability rating is predictably headed by German manufacturers, whose products have only one drawback - too high prices. That is why consumers often pay attention to cheaper Italian brands - and others. But the most popular, according to sales statistics, are domestic devices on the market - Rostovgazoapparat, Mimax KSG, Siberia KCHGO, Volk, Borinsky AOGV, AOGV and AKGV, Premium, ROSS AOGV. Also, products manufactured by Ukrainian factories have proven themselves well; Atem Zhytomyr is especially popular in Russia.

Model overview

Protherm Medved TLO

Floor single-circuit devices with an open fire chamber. Completely energy independent. Power range - 18–45 kW. Specifications and design features of "Proterm Medved" 20 TLO:

• power - 18 kW;
• heating temperature (min / max) - 45–85 ° С;
• dimensions (HxWxD) - 880x420x671 mm
• weight - 92 kg;
• maximum gas consumption - 1.9 m³ / h;
• heats an area up to 135 m²;
• piezo ignition;
• cast iron heat exchanger with condensate protection;
• single-stage power adjustment;
• modes "Winter" and "Summer";
• switching to liquefied gas is possible;
• automatic microprocessor control;
• Efficiency - 90%.

There is a built-in water heater. Reliable system safety: there is protection against a drop in gas pressure, against overheating of water and against flame extinction. It is compact, has a stylish design, will look good in the kitchen. Estimated cost - 55 000 rubles.

Baxi SLIM EF

Double-circuit floor version from the Baksi brand. Differs in stylish design - the gray case and the black adjusting panel. The burner is atmospheric. The heater device has a high sensitivity thermocouple, which promptly stops the gas supply when the flame goes out. They are connected to systems with natural circulation of the coolant. Their maximum power is 61 kW. Estimated price - 45 000 rubles. For example - BAXI SLIM EF 1.22:

• power - 22 kW;
• maximum temperature - 95 °C;
• dimensions (HxWxD) - 850x400x595 mm;
• weight - 101 kg;
• maximum fuel consumption - 2.64 m³ / h;
• heating area - 176 m².

Protherm Cheetah 23 MOV

Wall-mounted versions that work without an electrical connection are much more modest on the market. "Gepard" 23 MOV from the brand "Proterm" has two circuits. With a weight of 31 kg, it is easily fixed to the wall. Draft - natural, smoke removal - through a conventional chimney. The approximate cost is 33,000 rubles. Characteristics and design features:

• 23.3 kW;
• maximum gas consumption - 2.73 m³ / h;
• Efficiency - 90.3%;
• heats an area up to 230 m²;
• primary heat exchanger - monothermal;
• steel plate type heat exchanger for hot water supply;
• switching to liquefied gas.

Viadrus G36

Products of the Czech manufacturer. A steel atmospheric burner was supplied. In order for the gas valve to function smoothly, there is a built-in thermocouple capable of generating electricity in the right amount. There is also a sensor that prevents tipping of the thrust. Adapted to local conditions. You can connect a pump to increase the pressure of the coolant, and if there is a danger of power outages, an uninterruptible power supply is connected. You can also connect an indirect heating boiler. The price is about 52,000 rubles. Characteristics Viadrus G36 BM 3:

• 17 kW;
• heating - 45–85 °С;
• one circuit;
• Efficiency - 92%;
• heating - 128 m²;
• maximum gas consumption - 1.98 m³ / h;
• weight - 100 kg;
• dimensions - 935x485x733 mm.

Mounting Features

Gas heaters that do not consume electricity operate in conventional gravity heating systems which have many disadvantages. The main ones are insufficient temperature stability in the premises and high fuel consumption. That's the price for offline work. Since there is no forced circulation, such boilers are located at the lowest points of heated buildings so that water flows to the place of heating.

The heating circuit, independent of electricity, has a special wiring. The pipes must be of a larger diameter than in the case of circulation pumps. The location of the pipes - with a slope. It is necessary to strive for the optimal number of branches and turns so that the coolant pressure does not decrease below normal. An expansion tank is required: its absence can provoke a pipe rupture.