Features and nuances of installation, connection rules

When performing installation, it is important to strictly observe and take into account a number of requirements. In principle, 80% of all work is performed in the same way as in the case of installing a conventional gas appliance, but there are some differences:

1. Installation of a device that runs on LPG must be done in a room with an area of ​​at least 8 m2;
2. The ceiling height in the boiler room is not less than 2.3 m;
3. The distance from any side (not the front) of the boiler to the wall is from 0.7 meters;
4. The premises must have high-quality natural ventilation, at least one opening window, wide passage.

Provided that all requirements regarding the selection, installation and connection of the heating device are strictly met, further operation of the device using liquefied gas will delight you with stability and safety, cost-effectiveness and operational efficiency.

Gas heating boilers occupy a leading position in the consumer market, and this is not surprising, because a household water heating boiler operating on liquefied gas has compact dimensions, various options installation, ease of maintenance and operation and attractive cost. Year after year, Moscow is being built up with new buildings that require new heating systems, and our online store has in its assortment gas heating boilers of different capacities that satisfy different needs - they provide autonomous heating hot water and the heating process of your premises with the onset of cold weather.

Despite the fact that using a gas boiler requires the presence of a chimney, it is very affordable to maintain - the price of fuel is quite low. Buy gas cylinder for cooking or dressing heating boiler is not difficult.

Gas heating boilers - what are the advantages

Gas heating boilers have a lot of advantages, after studying which, you want to buy such a device without delay. As mentioned above, the price of this type of fuel is quite low, so heating season will not be a serious test for your wallet, and the presence of heat in the house and hot water in the bathroom will make your home comfortable and cozy.

Gas heating boilers, the price of which is quite attractive even if you choose a store in the center of Moscow for purchase, are equipped with a serious protection system that can prevent an accident. The heating boiler has automated system maintaining combustion - air and fuel are supplied without any human intervention or control.

And if you have chosen a household heating boiler using liquefied gas with the ability to connect to climate control devices, then “smart” modern equipment will be able to automatically select the operating mode. You can leave yours country house, equipped with a gas boiler, for a long time without fear that trouble will happen. Moreover, it should be noted that the presence of a protection system practically does not change the price of such boilers. Almost all gas boilers are equipped with a gas pressure control, which stops the equipment when the pressure drops or after a sudden stop in the fuel supply, as well as a flame control, which stops the gas supply if the flame goes out. You can also buy a domestic gas boiler with overheat control, which will instantly stop operating the equipment if the coolant circulation stops or leaks. This way you will avoid fire or breakdown of the boiler itself.

A gas boiler allows you to regulate the combustion intensity, which means that hot air is supplied evenly and the temperature in the living quarters always meets your expectations. In addition, such boilers are the most environmentally friendly, because the emission of harmful gases during operation is minimal, and Moscow greatly values ​​equipment that does not harm the environment and atmosphere.

Gas heating boilers - pitfalls

Boilers operating on liquefied gas also have several so-called disadvantages. First of all, this is energy dependence - after all, gas heating boilers are mostly equipped with microprocessor control, a fan and an air supply valve servomotor. All these components are electrified and are responsible for the efficiency of the device.

Gas boilers with closed combustion chambers are also equipped with an electric fan, because they operate on the principle of forced removal of flue gases. Thanks to the operation of fans and constant air circulation, a gas boiler for heating a house is quite noisy, although it does not exceed established noise standards. If you want to avoid noise as much as possible, choose models with noise reduction, although keep in mind that you will not be able to avoid noise 100 percent.

Also, all gas boilers have electric ignition. Please note that the Internet still offers completely energy-dependent boilers, their price is somewhat lower, and their operation is “lame” in comparison with others.

Heating boilers operating on liquefied gas, require strict adherence to safety rules during installation and operation - after all, an explosive substance is used to heat the room, so you should trust professionals when installing and connecting the equipment.

Gas heating boiler - the hot heart of your home

The above-described pros and cons of using a gas boiler will allow us to draw a very clear conclusion - heating a room using boilers of this type ideally meets the price-quality ratio. You pay for complete set The equipment has a very affordable price, but you get the opportunity to most carefully regulate the air temperature in your home.

When buying a gas heating boiler with an open or closed combustion chamber (in open version- this is a classic floor-standing boiler with a cast-iron heat exchanger and a conventional chimney; when closed - a wall-mounted boiler with a copper heat exchanger and a coaxial chimney, which is a pipe in a pipe), you provide your home with heat for for many years. The gas boiler is easy to operate and maintain and operates automatically without the constant intervention of specialists or the owner.

Even though gas heating is the cheapest and convenient option space heating, in Russia there are still non-gasified settlements, where homeowners have to heat their homes with wood, coal or fuel oil. If your house or cottage also does not have a gas pipeline, you can quickly solve the problem using a liquefied gas heating system.

In this article:

Economic feasibility of switching to LPG

To assess economic efficiency, you can use the method simple comparison liquefied gas with other types of fuel.

Natural gas, coal and wood can be discarded, although they are considered the cheapest. The problem is that it is the lack of natural gas that forces homeowners to purchase liquefied gas, and coal and firewood cause too much trouble, reducing all the benefits of saving “no”.

Let's compare the monetary costs of heating a private house with an area of ​​300 square meters. m.

As you can see, the cost of heating a private house with liquefied gas is significantly lower than if you used alternative heat sources for these purposes. You can find out how much gas the boiler consumes from the device’s passport, and how much gas heating will cost you - on your own, armed with it.

Advantages

LPG can be used in any area. At proper organization systems, the change of seasons will not affect the heating autonomy of the building in any way.

Autonomous heating of a private house with liquefied gas

From an environmental point of view, gas heating is second only to electric heating in terms of cleanliness environment. Liquefied gas is free of all the disadvantages that are inherent in solid fuels– dust, burning, smoke.

And, most importantly, the durability of the system, which is due to low wear and tear of the equipment.

Flaws

Without negative points can't do without:

• the greater the boiler power, the more often you have to worry about replenishing fuel reserves;
• at low temperatures not the entire volume of gas is produced;
• gas cylinders are a source of increased explosion and fire hazard.

Operating principle of liquefied gas boilers

Propane or butane is used for heating.

Liquefied under high pressure the gas is placed in a container that is connected to a reducer (this device reduces the pressure). The drop in pressure causes the gas to revert from the liquid phase to the gaseous phase. In this state, it enters the heating boiler, where it is burned.

Boilers designed to operate only on LPG are not produced.

Pay attention to an important parameter of the boiler - it must be able to operate at low pressure (from 3 to 4 mbar). At the same time, the efficiency of the boiler must be high, otherwise heating ceases to be cheap, and therefore economically profitable.

Otherwise, the choice depends on the tasks assigned to the equipment:

• if the boiler is intended only for heating, you can purchase a single-circuit one;
• if it must simultaneously provide the house with hot water supply, take a double-circuit one ().

Device connection rules

Must be firmly understood next rule: the boiler cannot be connected to a source of liquefied gas (gas holder or cylinder) without switching it to this type of fuel. Otherwise it's too much large number gas flowing through the nozzles large diameter, can lead to equipment failure or even an explosion.

Converting a heating boiler to a gas boiler is carried out by replacing the standard burner nozzle with a sprayer with a smaller diameter.

Many models of gas boilers are equipped with such nozzles. The sprayer, like the burner, can be purchased separately. On some models, the gas valve also has to be replaced.

The gas cylinder is connected to the boiler through a special reducer, providing gas consumption of 1.8 - 2 cubic meters per hour. Conventional gearboxes are designed for only 0.8 cubic meters / hour, so they are not suitable for LPG.

If your device has two circuits, to connect .

Security requirements

In houses with pits and basements LPG cannot be stored

Liquefied gas is considered quite safe, but only if certain safety measures are followed:

• Do not leave LPG containers in the sun;
• LPG storage tanks must be in good working order;
• the air temperature in the room where the cylinders are located should not exceed 45°C;
• Cylinders should not be placed in close proximity to radiators and gas stoves;
• It is strictly prohibited to store gas containers in buildings with basements and pits. Propane is heavier than air, and if it leaks, it can accumulate in dangerous quantities at lower building elevations, which can lead to an explosion.

How to store fuel

Storage of LPG is allowed in cylinders, mobile and underground gas tanks.

Gas cylinders together with the collectors, they are placed in special steel boxes that can be mounted against the wall of the house, but under one condition: the fire resistance of the wall must be at least class III.

The maximum permissible quantity of LPG in boxes is no more than 600 liters. When heating small buildings, 1-2 cylinders are allowed to be installed inside the house.

For heating a small private house or cottage, it is more productive to use mobile gas tanks.

The installation is a container with liquefied gas pumped into it (minigas holder), which is attached to a car trailer. The container is equipped with a heating system, which is part of the general heating system. Mobile gas tanks are placed at a distance of 10 meters from a residential building.

For heating big houses apply stationary gas tanks– tanks with underground installation. Undoubtedly this is the most best option provision heating system gas. The container immersed in the ground does not require additional heating, and its volume can be selected so that one refill is enough for a whole year.

Minimum distances from underground storage LPG to a residential building:

• 10 meters - with a gas tank volume of 3 to 10 cubic meters. m;
• 15 meters - with a container volume of 10 - 20 cubic meters. m;
• 20 meters - with a gas tank volume of 20 - 50 cubic meters. m.

Owners of private houses can purchase liquefied gas at the nearest gas station. But “close” does not always mean “good”: there are cases where people purchased cylinders with an unacceptably high water content. So sometimes it’s better to go further, but you will buy high-quality LPG.

If you want to control temperature conditions at home, or while in another place (for example, at work), we recommend purchasing.

And for uninterrupted operation of the boiler you will need a power supply

Go to see diagrams for tying a heating boiler with polypropylene.

Heating a private house using liquefied gas

Choosing a liquefied gas boiler

An important criterion is power, measured in kW. The heated area is usually 9-10 times larger than this value. That is, by choosing a boiler with a capacity of 11.3 kW, you will heat a room with an area of ​​about 100 m2.

However, it is necessary to make an allowance for the fact that during prolonged and severe frosts, equipment of such power will not be able to maintain the set temperature. Therefore, experts recommend choosing a boiler unit with a reserve.

Other options:

• Boiler type. According to the method of installation, there are wall-mounted and floor-standing models, and according to functionality - single- and double-circuit (heat + hot water), with an open or closed combustion chamber.
• Efficiency. The higher the indicator, the more economical and efficient the installation will be. The parameter varies in the range of 90-94%.
• Pressure . A unit operating on liquefied fuel must operate at low pressure (3-5 mbar). A low value will ensure that gas is produced from the cylinders without any residue.
• Gas consumption. The figures indicated by the manufacturer are conditional and depend on the power and efficiency of the unit, the set temperature in the room and outside the window, heat loss of the building and other factors.

When planning to build a house, you also need to pay attention to the design of the heating system.

The right solution is to delegate the task to experienced designers who:

• calculate the amount of heat load;
• will develop recommendations regarding the selection of heating equipment and related materials.

Knowing the required parameters of the boiler, all that remains is to select the device according appearance and price. Russian boilers are the cheapest. Popular Japanese-made models are twice as expensive. And the “Germans” will cost even more.

Operating principle

Comparing conventional gas boilers and liquefied gas heating boilers, we can highlight the following differences in operating principles:

• Less pressure is required for normal operation. The gas-air mixture is supplied under pressure not exceeding 3-4 mbar. The main gas is supplied at a pressure of 0.8-1 bar.
• Conversion liquid fuel into gaseous The propane-butane mixture is transported as a liquid. It turns into a gas under certain conditions. Constant pressure in the pipeline is one of them. Creation necessary conditions, ensuring stable operation is the task of the gearbox mounted between the boiler unit and the fuel tank.
• Efficiency Heating boilers using liquefied gas operate with an efficiency of 92-95%.
• Injectors. They have a different (smaller) outlet diameter. This ensures a low supply rate of the gas-air mixture, approximately 0.86 kg/hour.

Features of operation

When choosing a boiler that runs on liquefied fuel, you should remember to follow the operating rules for these installations:

• It is prohibited to install boiler rooms in basement or semi-basement premises. Propane-butane mixture is fire hazardous. When mixed with air it becomes explosive. And since the gas is heavier than air, if there is a leak, it does not evaporate through the windows and ventilation, accumulating on the floor.
• If there is an underground storage facility for cylinders or a gas tank, it should be located no closer than 10 meters from the house.
• When installing a storage facility in the depths of the site, there will be a problem with getting a gas station to it. There is also a huge list of requirements that must be met. In connection with this, design and installation must be carried out by a specialized organization.
• It is mandatory to have a contract for maintenance installations.
• A double-circuit liquefied gas boiler costs much more than a single-circuit boiler. It is recommended to use the second option complete with a geyser. This way you will save money and will not be left without hot water if the boiler unit breaks down.

Situation with lack of energy resources

When choosing heating equipment, you should take care of the possibility of using other types of fuel.

Main reasons:

• To heat a house of 100 m2 with a boiler with an efficiency of 92%, you will need 18 liters of liquefied gas per day, i.e. one 50 liter cylinder is enough for 2.5 days. To ensure uninterrupted operation, 3 main tanks and 3 spare tanks are required.
• Replacing cylinders involves paying the costs of transporting and filling them.
• Frequently changing cylinders entails the risk of negligence in this procedure. As a result, leakage, fire, or explosion may occur.
• Equipping a gas tank requires compliance with a large list of requirements, preparation of design documentation and obtaining permits.

Small buildings

Cases when the boiler is the best option and searches alternative sources heat is not important:

• Building area up to 50 m2.
• If there are no people in the room, the temperature is maintained at 5-10 degrees.
• Operating the boiler at full power is necessary periodically.

Advantages of choice:

• There is no need to prepare project documentation and obtain permits.
• It is permissible to install a boiler unit low power any type (wall-mounted, floor-mounted). It is important to have the ability to switch to liquefied gas. There are no devices designed to operate exclusively on propane. All models of equipment on the market can operate on natural gas and liquefied propane.

Advice! To fill the system, choose a non-freezing liquid, which will avoid an accident.

How to convert a heating boiler to liquefied gas

Problems to be solved:

• Changing the fuel mixture feed rate.
• Replacing injectors by installing special jets.
• Changing operating parameters, setting up automation for them.

Most models of modern single- and double-circuit boilers are designed to operate on both main gas and liquefied fuel. It is enough to replace the nozzles and select a different operating mode.

When heating device is not designed to operate on liquefied gas, switch the boiler to this type fuels are somewhat more complicated. It is necessary to carry out work to reconfigure the control valves and automation.

It is important that all work on reconfiguring the equipment is performed by a licensed specialist!

What is the liquefied gas consumption of the boiler?

You can find out this information by studying the technical documentation. Each model consumption varies, as it depends on a number of factors:

• Burner type.
• Selected settings.
• Performance.

On average, to power a boiler with a power of 10-15 kW you will need 2 cylinders of fuel. Thus, it is more profitable to use main gas.

Converting the boiler to liquefied gas is only necessary in a number of cases:

• Temporary transfer. Registration of a new boiler, preparation of design documentation, connection of the installation to the main line - operations that can take six months. During this period, it is economically profitable to use an already purchased boiler in a different operating mode.
• Using a gas holder. This technique is more economical than using firewood, diesel fuel or electricity for heating the room. Important nuance: Incorrect settings result in a 15% increase in fuel consumption. You should seek help from a qualified professional.

It follows from this

It is advisable to use gas boilers for heating a private home, capable of running on liquefied fuel, for the following reasons:

• Economic component.
• High operational safety.
• The ability to switch equipment to one or another operating mode.

At the same time, operation of the boiler in this mode does not differ in comfort, since it involves constant material costs for refilling cylinders, and the expenditure of physical effort and time for connecting containers.

To heat an apartment, it is more profitable to use a conventional wall-mounted boiler connected to the central line.

A gas boiler is one of the most affordable, efficient and economical ways heating. For heating a house, apartment, warehouse can be picked up suitable model. Blue fuel in Russia is much cheaper than electricity. The only drawback of the technology was the need to connect to the main line. But a liquefied gas boiler does not require a network connection, so it is accessible to everyone.

How does a cylinder boiler work?

Mass construction country houses leads to difficulties with connecting the gas main. But this is not the only reason why propane boilers are in demand:

• The difference in the price of propane and centralized gas is not so significant.
• When gas is burned, only carbon dioxide is released.
• The security system monitors the operation of the device, preventing breakdowns.

The operating principle of both systems is practically no different.

Liquid gas equipment has the appearance of a rectangular steel body, which looks stylish and modern. Inside there are the following elements:

• burner;
• radiator;
• adjustment system;
• security system.

Propane boiler diagram:

The burner also ignites automatically or uses electric ignition. The only difference is the diameter of the nozzles. In this case the holes are narrower to compensate more pressure in a cylinder.

For your home, you can use a double-circuit and single-circuit unit. A device with two circuits is designed for heating and hot water supply (DHW). One circuit can only be used for heating.

Depending on the type of installation, there are wall and floor models. Each of them must be connected to a landline or coaxial chimney. Equipment with a closed chamber takes air from the street. An open chamber requires good ventilation in the room to maintain the flame in the burner.

How to calculate fuel consumption

When choosing, the question arises: how much propane is needed to heat a house? Do accurate calculations The operating instructions will help, which indicate the characteristics of your model.

It turns out that devices running on butane emit three times more energy. In this case, the gas is not necessarily stored in cylinders. These can be large tanks with a capacity of several thousand kilograms. They are installed in basements.

Let's take the averages. To heat an area of ​​100 m² with normal thermal insulation, the consumption of propane gas will be 2 cylinders for 7 days. For one month you will need 9–10 cylinders. To avoid frequently changing containers, a two-arm collector is used. 10 containers are connected to it simultaneously.

Can a regular gas boiler run from a cylinder?

Propane appliances are produced by domestic and foreign manufacturers. There are combined models that successfully connect to a common highway and, if necessary, switch to liquefied fuel.

You can modify the heating circuit by replacing the burner or nozzles. Of course, not all models can be converted to liquefied gas. The device should operate stably at a pressure of 3–4 mbar. The gas valve should flow up to 1.8–2 m³ per hour.

Condensing type boilers are great for conversion. Their already high efficiency will increase thanks to bottled fuel.

How to reconnect your device

• Change the injectors or cartridge (depending on the model).
• Connect a reducer that will reduce the pressure in the system. If the installation includes several tanks, each can have its own gearbox.
• Change the bypass valve if it does not suit the new system.
• When connecting 10 to 15 containers, use a special ramp. The organization is carried out either through separate gearboxes or through converters. As soon as one tank runs out of contents, the system will automatically switch to the next tank.
• Adjust the settings so that the device “adjusts operation” for propane. To do this, select G31 in the settings.

During operation, adhere to the following requirements:

• The tanks must be located in a room separate from the boiler or outside in a closet. The distance from the device is at least 2 meters. Additionally, the cabinets are insulated with a layer of thermal insulation to prevent the containers from freezing.

• If you do not refill the tanks immediately, store them outside the building.
• Carefully monitor the remaining fuel quantity. Complete elaboration of content is prohibited. A leak test is carried out every four years.

It is equally important to store gas containers correctly. If you decide to make a supply of cylinders, then place them in a separate room at a distance of 10 meters from a residential building. The room must be well ventilated and not have a basement. Propane is heavier than air, so if there is a leak, it will pool at the bottom. Under unfavorable conditions an explosion will occur.

Features of choice

Have you decided to buy? Then consider several criteria. It’s better to decide on some before going to the store.

• Type of installation and number of circuits.
• Efficiency. Convection devices achieve an efficiency of 90–95%, and condensing devices - 100–107%.
• Power and performance. Calculations are carried out individually for each room.
• Manufacturing company. We recommend choosing proven brands that provide reconnection: “ ”, “ ”, “ “.

Advantages and disadvantages of propane technology

Like any appliances, liquefied propane gas boilers have their pros and cons.

Advantages:

• Low price of gas compared to electricity.
• High efficiency.
• Easy connection.
• Environmentally friendly. Carbon dioxide when produced, it is converted by plants into oxygen.

Flaws:

• The need for constant monitoring of the balance in the container.
• Propane costs are rising, and you'll also have to pay shipping.
• The room must have good ventilation.
• Refilling and replacing the container is done manually.
• If you intend to re-equip the device, then the cost of a new burner will be 30–40% of the boiler price.

Popular models

As we have already written, there are boilers with automatic switching to another type of fuel. Let's consider several options.

ZhMZ AOGV-29-3 Comfort N

The floor-standing unit is capable of heating a room up to 250 m². Uses combined view fuel: liquefied gas - 2.17 kg/hour, natural gas - 3.18. This is a single-circuit device, so you can only rely on the heating function. But it is also presented with dignity: power is 28.9 kW, efficiency reaches 89%.

The advantage of -29-3 is that it is independent of electricity. Mechanical control is easy to operate. The combustion chamber is open, so a connection to a stationary chimney is required.

An external thermometer records the temperature in the room and adjusts the operation of the device. Gas control protection monitors to prevent fuel leakage. Dimensions: 420x1050x480 mm.

Cost - from 26,000 rubles.

Bosch Gaz 4000 W ZWA 24-2 K

The dual-circuit device will provide hot water DHW system and pipes on an area of ​​250 m². Compact dimensions (400x750x355 mm) and a hinged housing allow the model to be placed in any non-residential premises. It is necessary to ensure ventilation, because the Bosch Gaz 4000 W ZWA 24-2 K has an open combustion chamber.

Thermal power is 24 kW. Fuel is used in bottles and mains. A bithermal copper heat exchanger simultaneously heats water for both circuits. Control is represented by an informative display and convenient controls. Built-in self-diagnosis function.

Interestingly, the equipment is equipped with a remote controller. For example, it is located in the boiler room, and you can control the modes from home. Moreover, the regulator allows you to set the “Weekend” mode. When you are not at home, the device supports optimal temperature. And by the appointed time it raises it to a comfortable level.

The water in the circuit circulates forcibly thanks to the pump. The security system includes: expansion tank 8 liters, draft, overheating, ionization sensors, pressure relief valve.

Price - from 31,000 rubles.

Wolf CNG 35

Floor heating equipment different original design. German manufacturers decided to do without a control panel, equipping the CNG 35 with technical features:

• Operates on liquid propane/butane (3.03 kg/h), switches to main gas (4.72 m3/h).
• Connects to a low temperature system.
• Equipped with one circuit with a cast iron heat exchanger.
• The combustion unit is cooled with water.
• Cast iron burner.
• The efficiency reaches 93.5%.
• Combustion products contain a minimal amount harmful substances. For this, Wolf received the environmentally friendly Blue Angel label.
• Power 34.9 kW.
• Mandatory connection to the smoke exhaust shaft, open chamber.
• The indication informs about the startup and shutdown of the device.

Dimensions: 660x835x860 mm.

Cost - from 87,000 rubles.

When choosing combined equipment, you can connect to a common line or switch to propane tanks at any moment. To do this, just switch the mode and replace the nozzles. It is important to follow safety precautions and take into account the costs of delivering cylinders.

Installation gas technology- it's always a risk. But if you use it wisely, then this risk is justified. Make purchases from trusted dealers.