The comfort in the house throughout the entire heating season - as much as half a year of life - depends on the method and quality of heating. The available natural gas in this case becomes the best choice for a private house and a country cottage. You can connect your home to gas by joining the main line, or using cylinders. Next, consider the pros and cons of the gas system.

Types of gas heating of a private house

For the organization of home heating, main gas or bottled liquefied gas is used.

1. Main gas. The system is considered more environmentally friendly and functional. This type of heating allows you to build underfloor heating indoors and so on. A significant drawback is the mandatory coordination of papers with official bodies. You will also need to install a boiler room and a chimney. More stringent rules apply for backbone systems fire safety regular preventive maintenance is a must.
2. Balloon gas. Suitable for any type of boiler, even models originally designed for trunk systems. If you install a balloon system, you will need single-circuit or double-circuit boilers of the appropriate power. Most models are also capable of switching to liquefied gas, it is enough to replace the burner.

The lower the pressure value in the boiler, the more economical and practical the device will be in operation. The optimal value of the boiler efficiency is 90-95%. It is this indicator that is important when choosing a model for liquefied gas, in contrast to trunk systems.

Benefits of gas heating

Main gas is the most profitable fuel for heating a private house.

1. High efficiency and low cost of gas make gas heating the most profitable way to heat a private house or country cottage.
2. Modern gas boilers allow heating large objects.
3. The automatic operation of the system ensures that even if the flame goes out, the sensor will work and start the ignition system. As a result, the user does not need to constantly monitor the boiler.
4. Double-circuit gas boilers combine two functions: to heat rooms and supply hot water.

Disadvantages of gas heating

A gas leak can lead to disastrous consequences. Be vigilant and install leak monitoring equipment.

1. It is necessary to install an automatic system for tracking possible leaks. The system depends on the power supply.
2. The atmospheric burner has an open flame. The security of this device is controversial issue for some users.
3. The use of a gas boiler is impractical if the area of ​​​​the room is less than 100 square meters. Such an installation is not economically viable and is considered less environmentally friendly.
4. When installing a gas boiler, a chimney is also required to allow exhaust gases to be removed. In this case, the boiler room is installed in a separate room. Another condition is good ventilation and supply of fresh air to the premises, the presence of a separate exit to the street. The latter is obligatory for installations with a gas burner.
5. If the gas pressure drops or the burner is worn out, the efficiency decreases and soot may appear.
6. The model of a gas boiler should be chosen taking into account the characteristics of the climate. Since gas pressure in Russia can “jump” a lot, foreign devices simply cannot withstand the loads. Therefore, the burner of an unadapted installation is able to “burn itself out” when the pressure drops to the limit. Such equipment quickly fails.
7. The need to coordinate the project and installation with the Gaztekhnadzor service. To install a gas system, you will have to obtain permission and invite an inspection officer to sign documents and inspect.

Please note that Gaztekhnadzor requires a copy of the service organization's license. If different firms are responsible for the stages of work, licenses are required for each type of activity.

Heating scheme of a private house with a gas boiler

Heating systems come with natural and forced circulation. In the first variant, the coolant circulates due to the density difference between hot and cold water. In the second case, the pump provides circulation.

The main difference between systems with natural and forced circulation of the coolant is circulation pump.

Note that artificial circulation is directly dependent on the supply of electricity, air locks may appear in such a system and uneven heating of radiators is possible.

The gas heating scheme in a private house also includes heating wiring, which is divided as follows:

A two-pipe heating system, although more difficult to design and install, is still preferable, since it heats all radiators equally.

1. Single pipe. It is suitable for do-it-yourself heating equipment, it is considered easier to perform. It is rarely used for private houses due to the temperature difference in the located radiators - in the first and last. The last batteries are colder, as already cooled liquid enters them, which is why the rooms in a large private house will warm up unevenly. This option is only suitable for small houses with a limited number of rooms.
2. Two-pipe, which requires a large number accessories and consumables, suitable for temperature control in individual rooms. The heating of radiators in different rooms can be regulated by means of shut-off valves. The main advantage of this system is batteries are heated evenly in all rooms. However, planning and installation are more complex and costly.

A prerequisite for single-pipe wiring is the installation of the boiler below the level of the radiators and the natural slope of the water supply. To solve the problem with uneven heating, install jumpers and increase the number of sections. Sometimes a circulation pump is included in a single-pipe system.

We calculate the gas consumption for heating the house

For autonomous gas heating of a private house, gas consumption is calculated according to the following scheme. To get 1 kW of thermal energy, it is necessary to spend 0.1 m³ of gas per hour. For a room of 200 m², you will need a 20 kW boiler. In this case, the consumption of such a boiler will be 20x0.1 = 2 m³ / hour.

The standard heating season includes approximately two identical intervals: three very cold and three moderately cold months (round up to 100 days each). As a result, 100 days the system operates at full capacity and the same number at half load or less. Thus, the average gas consumption for the cold season will be: 20x0.1x24 = 48 m³, for the next period this figure will drop to 24 m³. Eventually total consumption for the entire heating period will be (48x100) + (24x100) = 7200 m³. Most often, the final numbers come with a good cape and turn out to be larger.

Please note that the calculation is made without taking into account the cost of household needs such as cooking. These figures should be included separately.

Design and installation of gas heating

One of the main requirements for a boiler room with a gas boiler is proper ventilation.

Before proceeding to action, a special project is being developed for the heating system, taking into account the characteristics of the house. If the installation of a heating system in a private house and minor work can be done independently, then design is the stage at which you should not save. The design will allow you to calculate the characteristics of the equipment, reduce the cost of consumables and materials, calculate the final cost of work and installation. The project includes:

• sketch;
• technical and economic development;
• drawing up wiring diagrams;
• drawing up a working draft.

The final data is affected by the thickness of the walls, the height of the ceilings, the condition of the windows, the number of people living in the house, the presence and area of ​​\u200b\u200bwarm floors, the number of bathrooms.

Step Actions

The procedure is as follows:

1. Drawing up and approval of the project and constituent papers. The gas service gives approval for the installation only after the provision of the boiler house project, a contract with the installation team, it is also required to conclude an agreement on the powers and responsibilities of the parties. Most often, gas workers are responsible for supplying gas, while the design, installation and service is carried out by a service organization.
2. Purchase of gas equipment, components and consumables. Although the project puts forward requirements for equipment, the buyer chooses the price category. Excessive savings can lead to additional expenses or repairs.
3. Insertion into the gas pipeline and connecting the house to a common line.
4. Installation and connection of the boiler to the system.
5. Supplying coolant to the system, performing test runs and checks.

An alternative to gas heating in a private house

A wood burning boiler is the best alternative to a gas boiler.

Gas stoves for heating a private house are leaders in this sector. Such a device can only be replaced stove heating wood burning or electrical equipment. The first option is forced, most often distributed in rural areas or in areas where there are no gas lines. The second is considered more expensive, electricity bills may well exceed the price of expensive gas equipment.

If you have the opportunity to conduct gas heating in a private house, we recommend choosing this option. The owner of the house installs expensive equipment once and saves a lot by using cheaper gas.

Video

Gas prices are constantly rising, but heating with this type of fuel is still one of the most inexpensive. But we are talking about monthly expenses - modern boilers have a high efficiency - 95-98%, which reduces costs. A high degree of automation also adds popularity - you can leave the house for quite long periods without much risk (if the electricity is not turned off). That is why many people consider gas heating of a private house in the first place.

Gas heating private house, so far, still the most economical

What can be gas heating

Two types of gas can be used for heating - main and liquefied. Main gas under a certain pressure is supplied through pipes to consumers. It is a single centralized system. Liquefied gas can be supplied in cylinders of different capacities, but usually in 50 liters. It is also poured into gas holders - special sealed containers for storing this type of fuel.

Cheaper heating - using mains gas (not counting the connection), the use of liquefied gas is only slightly cheaper than the use of liquid fuels. These are general statistics, but specifically it is necessary to count for each region - prices differ significantly.

Water heating

Traditionally, in private houses they make a water heating system. It consists of:

Exactly this general description water gas heating systems of a private house, because there are still many additional elements that ensure operability and safety. But schematically, these are the main components. In these systems, heating boilers can be on natural or liquefied gas. Some models of floor boilers can work with these two types of fuel, and there are those that do not even require a burner replacement.

Air (convector) heating

In addition, liquefied gas can also be used as fuel for special convectors. In this case, the premises are heated with heated air, respectively, heating - air. Not so long ago, convectors appeared on the market that can operate on liquefied gas. They require reconfiguration, but can work on this type of fuel.

Gas convectors are good if you need to quickly raise the temperature in the room. They start heating the room immediately after turning on, but they also quickly stop heating - as soon as they turn off. Another disadvantage is that they dry the air and burn out oxygen. Therefore, good ventilation is required in the room, but there is no need to install radiators and build a pipeline. So this option has its advantages.

Types of wall-mounted boilers for home heating

First of all, it is worth dividing the gas heating equipment by functionality: it will be used only for heating or also for preparing hot water for technical needs. If water heating is expected, a double-circuit boiler is needed, only a single-circuit boiler works for heating.

Wall-mounted gas boilers - a small cabinet that is fashionable to install in the kitchen

Next, you should decide on the type of smoke extraction. There are gas boilers with atmospheric chimneys and open combustion chambers, there are turbocharged boilers (they have a closed combustion chamber). Atmospheric ones require a good chimney and draft in it, oxygen for combustion comes from the room in which the unit is installed, therefore there must be an air inflow channel and a working chimney (all this is checked when the system is started).

Boilers with forced draft (turbocharged) can be installed without a chimney. The smoke outlet of the boiler through a coaxial pipe (also called a pipe in a pipe) can be output directly to the wall. At the same time, smoke comes out through one pipe (it is pumped by a turbine), through the second, combustion air enters directly into the combustion chamber.

This type of equipment is good for everyone, except that in winter the coaxial is overgrown with frost, which worsens traction. In case of poor draft, the automation extinguishes the boiler - so that combustion products do not enter the room. Switching on is possible only when traction is restored, that is, you will have to upholster or remove snow growths in some other way.

There is also a separate type of boilers - condensing. They are distinguished by very high efficiency due to the fact that heat is taken from the flue gases (they condense vapors). But high efficiency is achieved only when operating in low-temperature mode - in the return pipeline, the coolant should not have a temperature above +40°C. If the temperature is even lower, even better.

Such conditions are suitable for water heating warm floors. So if you have conceived such gas heating of a private house - with warm floors, then a condensing boiler is what you need. It has few disadvantages - a high price (compared to conventional ones) and caustic condensate, which places special demands on the quality of the chimney (made of good stainless steel).

Floor standing gas boilers

If you need more power, the wall-mounted option will not work - they have a maximum performance of 40-50 kW. In this case, put a floor boiler. Here they are of high power, and there are also models that can work in a cascade. In this way, large areas can be heated.

Some of the floor boilers can operate not only from main gas, but also from liquefied gas. Some can still work with liquid fuel. So these are pretty handy units. Their body is made of steel, and the heat exchanger can be steel or cast iron. Cast iron weigh and cost more, but have a longer service life - by 10-15 years. Inside the case there is a burner, automation and a heat exchanger.

When choosing, pay attention to functionality automation. In addition to the standard set - control of the presence of gas, flame and thrust, there are many more useful functions:

• maintaining the set temperature,
• the ability to program modes by day or hour,
• compatibility with room thermostats;
• adjusting the operation of the boiler to the weather,
• summer mode - work for heating water without heating;
• the ability to work in parallel with solar panels or other alternative heat sources, etc.

The wider the functionality of the automation, the more expensive the boiler and its maintenance. But also many programs allow you to save fuel, which is no less important. In general, you choose.

Home gas heating schemes

We will talk about water heating using gas. Immediately it is worth deciding on the type of circulation of the coolant. It can be natural (such systems are also called gravity) or forced (with a mandatory pump).

Gravity systems require the installation of a large-diameter rub, that is, there is a lot of coolant in the system. The second point is that due to the fact that the coolant moves through the pipes at a low speed, the heating efficiency is not very high. Far radiators in long branches can be cold. It's about disadvantages. There are many of them, but there is one big plus - systems with natural circulation do not depend on electricity. This is important in those regions in which the power is often turned off.

Diagram of a natural circulation system

Now a little about systems with forced circulation. They are more efficient - the coolant moves at a given speed, delivering heat to all corners of the system. The presence of a pump allows the use of pipes of small diameters. This means that there is not much coolant in the system and it warms up quickly. In general, they provide a greater level of comfort, but have a serious disadvantage - they require electricity to work, that is, backup power is required. If the light is rarely turned off, it is enough to install an uninterruptible power supply unit with several batteries. They can ensure the operation of the boiler for tens of hours. If the light is turned off often and for a long time, you will also have to build a generator into the system. In any case, these are additional costs and considerable.

There are also combined systems - they are designed as gravity, but have a built-in circulation pump. Such a solution can be called ideal from the point of view of practicality: while there is light, the heating works as a forced one, as soon as the power supply is gone, everything works like a gravitational system. In general, a good option, except that the pipes will be large and too visible.

Wiring method

There are three types of systems - one-pipe, two-pipe and beam. In single-pipe radiators, they are connected in series to one pipe. This wiring method is economical - fewer pipes are required, but it is difficult to compensate - it is difficult to achieve the same heat transfer from radiators. The thing is that the coolant enters the first radiator in the hot branch - immediately from the boiler. It goes through it, cools down a little, hits the next one, cools down a little more. So throughout the thread.

It turns out that the coolant comes to the last radiator much colder than to the first one. The only way out is to take this phenomenon into account when designing the system and increase the number of sections in the radiator as you move away from the boiler. But the last radiators will still remain the coldest.

It is more or less easy to balance the system shown in the photo above. In it, on each radiator there are thermostats - devices that allow you to change the amount of coolant passing through the radiator. In order not to "crush" the circulation in the entire system, a bypass is placed under each radiator - a jumper through which the coolant flows, which did not go through the radiator.

In a two-pipe system, radiators are connected in parallel - to the supply and return pipelines. In this system, the consumption of pipes is much higher, since two threads are pulled at the same time. But in this case, a coolant with the same temperature is supplied to each heater, due to which the heat transfer of the radiators will be the same (if you put the same batteries).

In this scheme, you can also install thermostats, but this does not require bypasses - only the flow to one radiator is regulated. So despite the greater consumption of pipes, two-pipe systems are more popular.

The beam method of wiring is the most expensive in terms of the number of tubes. In them, to each radiator there is a separate supply and return pipe. It is connected to a collector - a device with one input and several outputs. In this case, adjustment is possible both on the collector and on the radiator using a thermostat.

Gas heating of a private house made according to this scheme will be the most reliable: if one of the pipelines is damaged, all the others will work. Therefore, this method is often chosen if the pipes are hidden in a screed.

The concept of "autonomy" implies independence. If we talk about heating, then there is still a dependence - fuel. To date, the most popular "refueling" is gas. Therefore, to create such a system, you will need a gas boiler, which will be located in the house or an extension to it. Autonomous heating should be considered at the stage of buying or building a home. This is what is worth talking about.

Furnishing equipment

The creation of any heating system requires an investment of finance. But a lot depends not only on the quadrature, but also on the gas itself. When it is possible to connect to the central highway, then there are no particular problems with “refueling”. But what to do when there is no such option?

The main task is to think over the delivery and storage of gas. Today it has become very popular to install gas tanks in their areas. They are large metal containers, where gas is pumped through special equipment. Such a "barrel" is dug in on the site so that it is below the freezing point of the soil. But in some cases, they can make an exception and install a container on the surface (if the region has mild winters or the gas tank is protected from frost). As for volumes, it all depends on fuel consumption.

It’s worth saying right away that the gas tank is not cheap, and it’s extremely difficult to install it yourself. In order to somewhat reduce the cost of arranging such an autonomous system, it is possible to agree with the owners of adjacent plots on a joint acquisition. Having calculated the individual gas consumption, you can choose the optimal volume of the gas tank. Then a specific installation point is simply determined.

Also, other mandatory elements will be present in the autonomous gas system:

1. Gas heat generator. The power of the boiler depends on the size of the house that it has to heat. There are two main types of installation - on the floor or on the wall. This does not affect the functionality of the equipment in any way. Floor models are chosen by those who, for some reason, cannot mount the boiler on the wall, for example, if it is framed with plasterboard.
2. System of pipes and batteries. These elements affect almost every room in the house. Here it is worth paying attention not only to the price, but also to the performance characteristics. To do this, you first need to decide on the boiler, because each model has its own heating range. Today, the most optimal material for pipes is metal-plastic. Well, as for radiators, then everyone chooses them himself, focusing on aesthetic preferences.

1. Stop valve. It is mounted in a circuit to enhance the savings effect. It is designed to control the supply of coolant and open the circuit. The main elements are shut-off and ball valves for radiators, needle valves and gate valves. Although these elements are small in size, the reliability of the entire system depends on their quality.
2. Systems for monitoring and adjusting work. Such elements allow you to achieve even greater savings in heating. Automation provides control over gas consumption, focusing on the temperature in the rooms. The pressure control system in the boiler also helps to optimize the work. Modern equipment, in most cases, already has these systems built in. But if you wish, you can purchase a simpler model and gradually improve it.

It is important not only to want to make the house warm, but also to make miscalculations from the standpoint of economic feasibility. This will require a plan. It indicates all the mandatory components of the system, up to the name of the equipment and its capacity. If you wish, you can do this work yourself. But if there is no elementary understanding, then it is better to entrust all the work to professionals.

Autonomous heating options

Electric and air heating systems are popular abroad. Water or antifreeze is used as a coolant. The main problem is to choose a heat source. The most popular options for boilers are gas, electric and diesel. But there are also combination devices.

For private houses, it is important to choose such heating so that it not only fits into a certain financial framework, but also pays off as quickly as possible. There are three main options:

1. Radiator heating. In this case, batteries and gas convectors are used, through which the heated coolant will flow. Heating radiators are devices of the convective-radiant principle. In their design there are sections of a round or elliptical shape, which are located separately from each other. They can be made of cast iron, steel, aluminum or bimetal. If we talk about convectors, then these devices work on the principle of convection. But radiator heating sets the air in the room in motion, which raises all the dust.

1. Warm floor. A system of pipes is installed in the floor through which the coolant will circulate. With this option, the room is evenly heated. But here it will be necessary to carry out capital work - they level the rough base, calculate the length of the coil, fill concrete screed, lay the final coating. Here the coolant will have more low temperature than in the previous version, due to which fuel consumption is reduced.

   And the cost of installation is 15-20% lower than that of radiator heating.

1. Air heating. Here air acts as a heat carrier. This approach is relevant for rooms where there is high humidity, such as a pool or garage. In this case, financial investments will be the most minimal. But the air mobility here is the highest, and the largest heat losses are also observed.

For maximum effect, it is better to try to combine all the above options into one system. Just choose the type of heating for each room.

Turnkey Services

When there is no desire or knowledge to do all the work with your own hands, then there is always the opportunity to turn to professionals. Competent and trained people will not only provide a finished project or carry out the entire installation, but will also offer to purchase all the elements at once from the company. Of course, all this will cost money.

Price autonomous heating depends on the following factors:

• the size and number of storeys of housing with which to work;
• what is the total power of all additional elements (pool, bath, sauna, etc.), if any;
• whether it is necessary to carry out extra work, for example, to increase the length of the gas pipeline or dig pits;
• whether the client wants to create any other protection systems, in addition to the standard set;

• if the client has specific wishes for equipment firms.

All these points will affect the final figure of the project. But usually firms already have standard development plans.

On average, services look like this:

• purchase of a gas boiler with average technical indicators - the price is 25,000 - 50,000 rubles;
• all materials and components of an autonomous system - 35,000 - 50,000 rubles;
• materials and components for creating a hot water supply system - the price is 7,000 - 10,000 rubles;
• installation of radiators - from 1000 rubles apiece;
• installation and connection to the heat generator system: wall type - from 7,500 rubles, floor type - from 10,000 rubles;
• fixing and connecting a boiler for heating water: ordinary - from 1800 rubles, indirect type - from 5000 rubles;
• replacement of old batteries - from 2000 rubles apiece;
• piping of the boiler room (up to 40 kW) - from 15,000 rubles;
• installation and connection to the collector's radial heating system - 2500 rubles apiece;
• manifold with standard equipment (mixing unit and pump) for underfloor heating (installation and connection) - 2600 per sq.m.;
• arrangement of an internal cabinet for a collector - 1200 rubles apiece;
• arrangement of a water floor with a substrate - 250 rubles per sq.m.;
• installation of an underfloor radiator - 3500 rubles apiece;
• installation of a single-circuit heat generator together with an indirect boiler - 7500 rubles apiece;
• installation of a pipeline for a heating system: from metal - 125 rubles per meter, PPR - 85 rubles per meter, cross-linked polyethylene - 60 rubles per meter, from copper - 125 rubles per meter;
• piping of a single-circuit floor-standing boiler - 2500 rubles;
• piping of a wall-mounted double-circuit boiler - 2000 rubles;
• arrangement of heating points - the price is 40 rubles per point;
• pipeline insulation - 40 rubles per meter;
• installation of a floor-standing gas boiler - from 8,000 rubles apiece;
• arrangement of a combined type boiler room - from 15,000 rubles;
• piping with copper boiler room - from 7500 rubles;
• creation of a pumping group - the price is 3000 rubles;

• installation of a chimney pipe: turbocharged type - from 2000 rubles, galvanized - from 5000 rubles;
• boiler house project - from 3000 rubles;
• installation and adjustment of boiler equipment - from 7500 rubles;
• paperwork for an autonomous system - 45,000 rubles.

All the above figures are approximate, since a lot depends on the image of the company and the region.

Creation of autonomous heating with a gas tank

Today, a lot of people prefer complete independence. To this end, they install a special gas container on their site - a gas tank. Depending on the volume, such a filling can be enough for at least 2-3 years. In terms of financial investment, this is a very good option. But how much will the arrangement cost?

Project for a house 50-100 sq.m.:

• purchase of a gas tank for 2700 liters - from 150,000 rubles;
• installation in a finished pit (gas main, concrete slab with clamps, consumables, basement entry) - from 60,000 rubles;
• installation with earthworks using equipment - from 78,000 rubles;
• installation of condensate bonic - 10,000 rubles;
• purchase of a gas boiler: single-circuit - from 29,000 rubles, double-circuit - from 33,000 rubles.

Total: approximately 400,000 rubles.

Project for a house of 100-350 sq.m.:

• purchase of a gas tank for 4850 liters - from 175,000 rubles;
• installation in a finished pit - 64,000 rubles;
• preparation of a pit using equipment - 79,000 rubles;
• gas protection system - 6,000 rubles;
• gas cut-off valve - 6,000 rubles;
• installation of a pressure gauge - 4,000 rubles;
• equipping the system with anode-cathodic protection - 12,000 rubles;
• purchase of a gas boiler: single-circuit - from 29,000 rubles, double-circuit - from 37,000 rubles, single-circuit condensing - 62,000 rubles.

Total: approximately 415,000 rubles.

Project for a house of 350-500 sq.m.:

• purchase of a gas tank - from 240,000 rubles;
• installation without ordering earthworks - from 64,000 rubles;
• installation with excavation using the company's equipment - from 84,000 rubles;
• installation of condensate bonic - 14,000 rubles;
• gas protection system - 6,000 rubles;
• gas cut-off valve - 6,000 rubles;
• installation of a pressure gauge - 4,000 rubles;
• equipping the system with anode-cathodic protection - 12,000 rubles;
• purchase of a gas boiler: single-circuit - from 29,000 rubles, double-circuit - from 33,000 rubles, single-circuit condensing - from 62,000 rubles.

Total: approximately 460,000 rubles

Project for a house of 500-700 sq.m.:

• purchase of a gas tank for 9150 liters - from 350,000 rubles;
• installation in a finished pit - 69,000 rubles;
• preparation of a pit using equipment - 89,000 rubles;
• installation of condensate bonic - 14,000 rubles;
• gas protection system - 6,000 rubles;
• gas cut-off valve - 6,000 rubles;
• installation of a pressure gauge - 4,000 rubles;
• connection of a remote equalization meter - 15,000 rubles;
• equipping the system with anode-cathodic protection - 12,000 rubles;
• purchase of a gas boiler: single-circuit - from 30,000 rubles, double-circuit - from 39,000 rubles, single-circuit condensing - 65,000 rubles.

Total: approximately 600,000 rubles.

Projects with gas tanks are much more expensive than the arrangement of a simple gas heating system. Although you can compare prices from different representatives, the difference here will not be significant. But they completely create autonomy from any gas pipelines. True, the maintenance of such equipment must be carried out every year, and from the company that was engaged in the installation of the equipment.

The most economical resource for heating today is natural gas. In addition, it is the most affordable. That is why the most the best option The device of the heating system in a private house is the gas heating of a private house. Even if the supply of an energy carrier is impossible, then there are alternatives(gas cylinders, gas tank).

Gas is the most popular resource for heating

And if a gas main passes in the area, then the installation of gas heating of a private house is greatly simplified. There are several optimal schemes for heating private houses with gas. One of the great options for permanent use in a private home is a gas boiler.

How to choose a gas boiler

Gas boilers differ depending on different indicators. By power, they are: low power (up to 65 kW), medium (up to 1700 kW) and large (up to 15000 kW). Low and medium power are perfect for heating a residential private house. Large power boilers are usually used in industrial facilities.

In terms of functionality, gas boilers can be single-circuit and double-circuit.

Single-circuit boilers are only for use in heating systems. Double-circuit boilers are also designed for heating water in CO and for the needs of residents. Double-circuit boilers can be of a flow type. Such boilers are used only when the volume of hot water consumed is negligible. Double-circuit boilers with a built-in boiler provide full-fledged heating in a private house with gas and hot water supply. There are also boilers to maintain temperature regime water in pools, etc. (in this case, these are specialized solutions).

Scheme of a double-circuit gas boiler

Burners in gas boilers can be atmospheric and ventilation. Atmospheric burners are the most common option for heating private houses. Ventilation burners are usually used in industrial facilities.

According to the type of draft, boilers come with natural draft (there must be a chimney here) and with forced draft (gases are removed using a fan).

Depending on the installation method, the boilers used by the gas heating system of a private house are floor and wall-mounted. Floor boilers have a higher power, their dimensions are larger. They are also more durable and their cost is slightly higher. Wall-mounted gas boilers are relatively inexpensive appliances, they are compact and have less power. Also, wall-mounted boilers are less durable.

Water gas heating system of a private house

The most common heating system is water: the role of the heat carrier is performed by water, which circulates through a closed pipeline loop. In the boiler, the water is heated, then it transfers heat through pipes and radiators (batteries) for heating.

Such a gas heating system of a private house has several advantages:

• water is an effective heat carrier;
• the circulation system is closed, therefore, after the initial filling, the volume of water should not change;
• water gas heating of a private house video, which can be viewed below, will show that such a system can be equipped independently;
• in such a system, it is easy to create a circuit that provides a uniform supply of heat to each room.

Among the disadvantages of a water gas heating system:

• heating radiators must be constantly kept clean, since when covered with dust, the heating efficiency of the premises will be lower;
• in comparison with air heating, water after switching on will not be able to provide the same rapid heating of the air;
• elements that are included in the water heating system can often crack, corrode, etc. This can not only worsen the microclimate in the house, but also cause damage to the interior of the premises;
• to the quality of the heat carrier - special requirements: the amount of salts in the water must be minimized;
• heating cannot be simply turned on and off in winter, when it is very cold outside, as this can lead to freezing of water, which will increase in volume and burst pipes. Therefore, gas heating of private houses of this type is not suitable for summer cottages, where the owners do not visit often, especially in winter.

Heating schemes for a private house

Depending on how the coolant circulates inside the closed circuit, there is CO with natural and forced circulation. In the first case, circulation occurs due to the difference in the density of cold and hot water, and in the second case, the pump works. If you want to produce a heating system for a private house on your own, then you need to carefully calculate the optimal CO scheme.

Heating wiring is an important element in the system. It is of two types:

• single-pipe. It is not often used in private homes, since with such a wiring, the temperature in the radiators varies. This option is suitable for houses that are small and have few rooms;
• two-pipe. This option is quite resource intensive. But for temperature control in individual rooms, the system is suitable.

The single-pipe gas heating scheme of a private house has one significant drawback - the lower radiators heat up less, since slightly cooled water enters them. And if you have a two-story private house, then rooms on different floors will also warm up unevenly. If you want to equip gas heating with your own hands, then such a scheme will be much simpler.

In addition, when laying the pipeline, few materials are spent. The problem of uneven heating of radiators is solved by installing a jumper and increasing the number of sections. And in order for the coolant to circulate faster, a circulation pump is used.

Note that a natural circulation circuit will be suitable if the boiler can be installed below the level of the radiators. Also, for the normal passage of the circulation process, a natural slope of the supply and return pipelines is needed.

As for artificial circulation, the use of a pump is necessary here. Such schemes are quite simple to install, but they have several disadvantages. These include all the same uneven heating, as well as the appearance of air congestion and dependence on electrical supply.

Very often you can find such an option as Leningrad wiring heating system(Leningrad). The meaning of this system is that water circulates in a pipe closed on the boiler. Heating equipment (radiators) is connected to it, through which the coolant will flow in parallel to the supply circuit. The system is quite effective for a private house.

The next scheme is two-pipe. In this case, the radiators will heat evenly, but the cost of laying pipes will be higher. The heating of individual heating radiators can be regulated using special shut-off valves.

A two-pipe system with natural circulation and bottom wiring is well suited when the boiler is located in the basement.

Stages of arranging a gas heating system in a private house

Gasification of a private house is an important and responsible process. Gas heating equipment includes several stages:

1. Preparation and approval of design and permits. The gas heating project of a private house should be created by specialists, as this is an important element on which further arrangement depends.
2. Purchase of the necessary equipment and materials.
3. Inserting a house system into a street gas pipeline.
4. Distribution of gas networks inside the house, arrangement of a special room for a gas boiler.
5. Installation of gas equipment.
6. Filling the heating system with heat carrier.
7. Trial run. It is better if it was produced with working and increased pressure.
8. Acceptance of the finished system.

Gas heating schemes must be thought out to the smallest detail, so projects must be carried out by professionals.

One example of a professional heating plan

When choosing equipment for gas heating, remember that the main indicator is the area of ​​\u200b\u200bthe heated room. The volume of equipment, the number of radiators, the footage of pipes, fittings, valves and valves, plugs depend on it.

In the process of choosing a method for laying heating pipes and installing them, remember that the lines of cold and hot breeding should be carried out with a slight slope directly towards the flow of hot water.

Experts recommend installing taps on each battery. Thanks to this, it will be possible to control the supply of hot water to a separate room of a private house. If you use an expansion tank from 20 to 30 liters, then it must be installed at a height of 3 meters above the heating boiler.

Conclusion

Gas heating of a residential private house is the most efficient and affordable option if there is a highway in the area of ​​\u200b\u200byour house. In this case, fuel is consumed economically, gas equipment is easy to operate, and you can equip such a system yourself.

Autonomous heating requires compliance with the standards for the premises where equipment should be installed and pipelines should be installed. Let us briefly summarize these requirements.

Boiler room

A separate room in which a gas heating boiler and other auxiliary equipment is installed. It is forbidden to install gas equipment in living rooms. Boiler requirements:

1. an area of ​​at least 6 m² (based on at least 4 sq. m per boiler), a volume of at least 15 m³, a ceiling height of at least 2.2 m;
2. the presence of at least one window with an area of ​​​​0.5 m²;
3. innings fresh air through a hole in the door or from the street;
4. free access to equipment for maintenance;
5. gas, electricity, water supply. Electrical network: current single-phase, nominal, 220 V, 20 A, grounding, circuit breaker;
6. communication characteristics must comply with regulatory requirements;
7. sewerage for removal of emergency drains and chimney condensate;
8. plastered walls, finishing with combustible materials is prohibited;
9. flat floor made of non-combustible materials;
10. door with a minimum width of 0.8 m.

The requirements for ventilation and chimney of the boiler room can be viewed in detail in the National Security Service 4.03.01-98, taking into account the changes in edition No. 8, introduced from 2008-03-01.

Furnace

Built-in or attached room for installation, usually up to two gas heating boilers up to 100 kW each. Any floor, including basement, basement, attic. The furnace may be a separate building that meets certain requirements that apply to equipment with an open combustion chamber. If the combustion chamber is of a closed type (which is typical for almost all modern boilers), then there are no restrictions in the furnace room.

The minimum volume of the furnace, depending on the power of the equipment:

1. up to 30 kW - 7.5 m 3;
2. up to 60 kW - 13.5 m 3;
3. up to 200 kW - 15 m 3.

Furnace room dimensions:

1. height not less than 2.2 m;
2. the width of the passage between the most protruding point of the equipment and the opposite wall must be at least 1 m;
3. the minimum room perimeter and area can be determined by volume and height.

Supply and exhaust ventilation in the furnace should be provided:

1. a window with an area of ​​0.25 sq.m to the street;
2. hood to the adjacent room with a grate at the bottom of the wall or door with an area of ​​​​0.02 sq.m.

How to make gas heating of a private house with your own hands

Do-it-yourself installation of autonomous heating is quite within the power of a person who has the skills of such work. Various installation schemes are considered in detail, attention is paid to individual details.

You can independently perform all work on the installation of a home heating system, except:

Insertion and design are performed only specialized organizations licensed.

Work order

The principle of operation of water heating is as follows: water heated by a gas boiler naturally or forcedly circulates through pipelines, giving off heat to the premises. The optimal heating scheme for a two-story private house includes a system with underfloor heating on the first floor and radiator heating on the second floor. The circulation of the coolant can be natural (gravity flow) or forced (circulation pump).

Consider the procedure for installing autonomous gas heating using the example of a 2-storey building:

1. installation of the boiler in the boiler room on the ground floor;
2. installation of a security group, expansion tank, circulation pump
3. installation of a pumping and mixing unit for underfloor heating to circulate the coolant at the required temperature;
4. installation of a collector for a warm floor;
5. laying a warm floor (the specification of materials and the procedure can be found on the Internet);
6. installation of radiators and their connection to the collector in all rooms on the second floor;
7. at the end of the complete installation of the heating, the floor heating is poured with concrete.

Heating schemes for a private house with a gas boiler can be of two types:

1. Single-circuit heating scheme of a private house with a gas boiler (closed, designed only for space heating)

2. Double-circuit scheme using a special boiler (simultaneously heating and heating tap water)

Autonomous heating wiring diagrams

Heating wiring from a gas boiler is based on several typical schemes heating, which differ in the type of circulation of the coolant (usually water) and in the methods of piping. There are the following types of heating installation:

• Single-pipe heating distribution, in which the pipes are looped, and the radiators are arranged in series. The coolant, leaving the boiler, passes through each radiator in turn. The temperature of the coolant decreases as you move. It is primitive and imperfect, since the coolant temperature drops by the end of the cycle.
• The Leningradka system with dedicated bypass radiators is intermediate and allows you to eliminate some of the problems of a single-pipe circuit;
• Improved "Leningradka" system with shut-off and balancing valves;
• Two-pipe wiring represents supply and return pipes running parallel to each other. Allows the coolant used in the radiator to be returned to the boiler for heating. The supply of coolant to the radiator according to this scheme occurs without heat loss.
• Radial (collector) wiring distributes the collected coolant to individual radiators. The scheme is complex, used infrequently.

Heating schemes for a 2-storey private house can be as follows:

1. Open type heating system

Expansion tank - an open container with an inlet pipe connected to a supply riser. It is installed at the highest point of the heating system - the coolant does not overflow to the outside, and the expansion tank additionally acts as an air vent.

2. Closed type heating system

A sealed expansion tank is installed in the system, divided by an elastic membrane into water and air chambers. With thermal expansion, excess coolant enters the water chamber of the tank. The pressure in the air chamber increases, and when the pressure decreases, the coolant returns to the pipelines. The tank can be installed at any point, but usually it is mounted next to the boiler on the return pipe. Installed safety valve pressure relief.

Scheme with natural and forced recirculation, which are used when heating a two-story private house

How much does turnkey autonomous gas heating cost

Natural gas remains the most economical type of fuel for heating a private house. Gas can be supplied from a gas pipeline using a gas tank or gas cylinders. Connection to gas distribution networks will significantly reduce the amount of installation work.

The list of works on the installation of a heating system at home:

1. House survey. A specialist inspects the house, makes measurements of individual rooms, advises the homeowner on technical issues, recommends a scheme for placing equipment, etc.
2. Heating design. At the design stage, the specifications systems and the optimal set of equipment: the type of boiler and auxiliary equipment, its equipment, power and location of each element. How much a private house heating project costs is determined individually, based on the characteristics of the house and the choice of heating system.
3. Purchase of a boiler and other equipment. The necessary equipment is agreed with the customer and purchased.
4. Heating installation. Installation and piping of a gas boiler, installation of pipelines, connection of heating elements. Design and installation work turnkey are carried out strictly in accordance with technical standards, which is a prerequisite
5. Tests and start-up of heating. Testing, elimination of defects, start-up and adjustment of the system, putting it into operation.

Heating costs will depend on:

1. the cost of the selected equipment and materials;
2. amount of work on installation;
3. area and shape of the house, number of storeys and other features.

A few examples with turnkey prices for the installation of gas heating (economy class). The price includes a boiler made in the Czech Republic, Slovakia, China, radiators, pipes and work:

• house area 100 sq.m - from 260 thousand rubles;
• house area 200 sq.m - from 350 thousand rubles;
• house area 300 sq. m - from 500 thousand rubles.

In the "Standard" price category, heating is about 20% more expensive, in the "Premium" category - by 30-40%. Some companies also offer prices for the installation of individual elements of the system: installation of a boiler, radiators, pipes, etc. I’m talking about how to connect gas to a country house and how much it costs.

conclusions

There are many schemes for installing and distributing heating in a private house - it is impossible to consider all options within the framework of one article. The choice of an economical heating system for a private house depends on many components, including the number of storeys, area and architectural fore of the house in terms of. When designing home heating, specialists should set the task of offering not just the cheapest and most economical heating - the chosen scheme should also heat the house as efficiently as possible, and its maintenance should be quick and inexpensive. Below you will find a detailed video on how to do gas heating in a private house with your own hands.