Gas boilers gas consumption. How much gas consumes a gas boiler in a month and an hour - we calculate.

At arrangement heating system  and the choice of energy carrier it is important to find out the future gas consumption for heating a house of 150 m2 or another area. After all, in recent years there has been a clear trend towards an increase in prices for natural gas, the latest price increase of about 8.5% occurred recently, on July 1, 2016. This led to a direct increase in heating costs in apartments and cottages with individual heat sources using blue fuel. That is why developers and homeowners, who only select a gas boiler, should calculate the heating costs in advance.

Initial data for calculations

To perform a preliminary calculation, you need to find out the following parameters:

• calorific value of natural gas supplied in your area;
• The efficiency of the boiler, which is planned to be installed in the house or apartment.

The calorific value of the fuel is taken from the value of the net calorific value of the main gas.

Theoretically, when burning 1 m³ of blue fuel, 9.2 kW of thermal energy is released. In practice, this value is different and, as a rule, in a smaller direction. In connection with the same rise in price, some unscrupulous suppliers dilute the gas with air, why its calorific value can be reduced to 7.5-8 kW / m³.

To determine the gas consumption for heating the house, it is better to know the caloric value in management company, and when this is not possible, put in the figure with a margin: 8 kW / m³. If you share information about the specific heat of combustion and give a figure expressed in other units, kcal / h, you can convert it to Watts by multiplying by a factor of 1,163.

Another important indicator that directly affects fuel consumption is the thermal load on the heating system, which consists of heat losses through the building's building structures and losses for heating the ventilation air. The best option  - perform or order an accurate calculation of all heat loss, but in the absence of another output, the load can be determined by enlarged methods:

1. If the ceiling height does not exceed 3 m, then the heat consumption of 0.1 kW per 1 m² of the heated area of ​​the building is accepted. Thus, for a house of 100 m2, about 10 kW of heat, 150 m2 - 15 kW and 200 m2 - 20 kW of heat energy are needed.
2. Put on 1 m³ of the volume of the heated room 40-45 W of heat. The load is determined by multiplying this value by the volume of all heated rooms.

The efficiency of the heat generator, which affects the efficiency of combustion of fuel, is indicated in its technical passport. If the unit is not yet purchased, the efficiency of gas boilers of various types can be taken from the list:

• gas convectors - 86%;
• boilers with open camera  combustion - 88%;
• heat generators with closed camera - 92%;
• condensing boilers - 96%.

Performing calculations

Preliminary calculation of gas consumption for heating is made by the formula:

V = Q / (q x EFFICIENCY / 100).

• q - calorific value of fuel, by default it is assumed 8 kW / m³;
• V is the required main gas flow, m³ / h;
• Efficiency - the efficiency of burning fuel by a heat source, expressed in%;
• Q is the load for heating a private house, kW.

As an example, it is proposed to calculate the gas consumption in a small cottage with an area of ​​150 m² with a heating load of 15 kW. It is planned that the heating task will be performed by the heating unit with a closed combustion chamber (efficiency 92%). Theoretical consumption of fuel for 1 hour in the coldest period will be:

15 / (8 x 92/100) = 2.04 m³ / h.

During the day the heat generator will consume 2.04 x 24 = 48.96 m³ (rounded-49 cubes) of natural gas - this is the maximum consumption in the coldest days. But during the heating season, the temperature can fluctuate between 30-40 ° C (depending on the region of residence), so the average daily gas flow will be half that of about 25 cubes.

Then, on an average for a month, the turbine boiler is used to heat a house with an area of ​​150 m², located in the central strip of Russia, 25 x 30 = 750 m³ of fuel. In the same way, consumption for cottages of other sizes is calculated. Based on the preliminary calculation, it is possible even at the construction stage to carry out activities aimed at reducing consumption: insulation, the choice of more efficient equipment and the use of automatic controls.

Autonomous heating of private houses with liquefied propane or its mixture with butane has not lost its relevance in Russian Federation, although in recent years has risen markedly in price. It is all the more important to calculate the future consumption of this type of fuel to homeowners who plan such heating. For calculation, the same formula applies, but instead of the net calorific value of natural gas, the parameter value for propane is set: 12.5 kW with 1 kg of fuel. The efficiency of heat generators when burning propane remains unchanged.

Below is an example of calculation for the same building of 150 m², only heated with liquefied fuel. Its consumption will be:

• for 1 hour - 15 / (12.5 x 92/100) = 1.3 kg, per day - 31.2 kg;
• on the average for a day - 31,2 / 2 = 15,6 kg;
• on average for the month - 15.6 x 30 = 468 kg.

While calculating the consumption of liquefied gas for heating the house, it is necessary to take into account that fuel is usually sold by volume measures: liters and cubic meters, rather than by weight. This is how propane is measured when filling cylinders or gasholder. Hence, it is necessary to translate the mass into a volume, knowing that 1 liter of liquefied gas weighs about 0.53 kg. The result for this example will be as follows:

468 / 0,53 = 883 liters, or 0,88 m³, propane will have to be burned on average for a month for a building of 150 m².

Given that the retail cost of liquefied gas is an average of 16 rubles. for 1 liter, heating will result in a considerable amount, about 14 thousand rubles. a month for the same cottage for one and a half hundred squares. There is an occasion to reflect on how best to warm the walls, and take other measures aimed at reducing gas consumption.

A lot of homeowners expect to spend fuel not only for heating, but also for providing hot water supply. These are additional costs, they must be calculated, plus it is important to take into account the additional load on the heating equipment.

The thermal power required for DHW is not difficult to calculate. It is necessary to determine the required volume of water per day and use the formula:

Q DHW = cm (t 2 - t 1).

• c - heat capacity of water, equal to 4.187 kJ / kg ° C;
• t 1 - initial water temperature, ° С;
• t 2 - final temperature of heated water, ° С;
• m - amount of water consumed, kg.

As a rule, economical heating occurs to a temperature of 55 ° C, and it must be substituted into the formula. The initial temperature is different and lies in the range 4-10 ° C. For a day, a family of 4 people needs about 80-100 liters for all needs, provided that they are economical. To translate the volume into mass measures is not necessary, since in the case of water they are almost identical (1 kg = 1 L). It remains to substitute the obtained value of Q DHW into the formula given above and determine the additional gas flow in the DHW.

Hardly anyone doubts that heating the house with gas, not counting electrical systems, is the most convenient and clean, compared to other options. If everything is done correctly, the efficiency (read economy) will also be at a height when it is, of course, the connection to the mains networks, and not about the propane tanks. But in any case, in order to make a final decision, all developers want to know what will be the real gas consumption for heating the house, whether there is an opportunity to optimize energy costs. It's not hard to find out.

How to calculate the demand for gas for the heating season

Nominal equipment performance

The first thing to do is to determine what capacity the boiler needs to be installed. It is important for us that gas heating in the house it was guaranteed to provide a comfortable temperature regime in the rooms even on the coldest days of winter. The most reliable thing is to conduct engineering surveys (if the building is already in operation), or calculate the heat loss to be filled (if construction is in progress)

Gas boiler in the heating system of a private house

There is a simpler option, you can use the well-known rule, which states that for every square meter of a dwelling area there should be about 100 watts of power of a heat generator, that is, 1 kW per 10 m 2. It does not matter, gas heating apartment building  or a small private cottage, such a formula is applicable to well-insulated buildings. In square meters, the average person is comfortable thinking, but more important is the cubic capacity, so simplified calculation is suitable only if the ceiling height in the rooms does not exceed 2.7 meters.

Important! If the boiler also heats the water for the DHW circuit, then it is necessary to provide a reserve of thermal capacity of 2-3 kilowatts.

So, as an example: for a house of 200 square meters you need to buy a heating device with a capacity of at least 20 kW.

How much gas burns the boiler for every 1000 watts of heat

Heating devices on the market may differ significantly in terms of technical specifications, in particular on energy efficiency. However, there are averaged indicators, which are quite suitable for calculations. So, for each kilowatt of heat produced, modern gas boilers for heating the house use about 0.112 cubic meters of natural gas per hour.

Using gasholder, you can stock up with liquefied gas for the whole season

To calculate consumption for heating the house with liquefied gas, it is necessary to proceed from the following data:

• efficiency factor of the heat generator,
• the calorific value of the gas (the composition and quality of the mixture can vary greatly from one supplier to another).

Depending on these conditions, the generation of one kilowatt of heat may require from 0.085 to 0.12 kg of liquefied propane per hour. On the average, a flow rate of 0.1 kg / h is substituted in the formulas.

How many days in a year will gas heating work at home

The duration of the heating season depends on the climatic features of the region. According to the tables of SNiP 23-01-99 "Construction climatology", the following is taken into account in heat engineering calculations: air temperature (peak, average daily, in the coldest five-day period, amplitude), prevailing direction and speed of winds, precipitation, relative humidity.

Depending on the specific region, the heating season lasts on average in Russia from 210 to 250 days. Approximately from October to April inclusive. If a dwelling is realized heating system, it is of no small importance what kind of temperature in the rooms the residents of the house consider comfortable.

Approximately so the temperatures in Moscow and the region are distributed. It is interesting that the absolute minimums were registered at the end of the year before last and the beginning of the last century, and in the 21st century record highs

Total volume of energy carrier for the heating season

So, we consider all the necessary gas for the house in 200 squares (according to the floor area of ​​the heated premises). A boiler with a capacity of 20 kilowatts will burn 2.24 cubic meters of gas per hour. A day will require 53.76 m 3 of fuel (24 X 2.24). For the heating season at 7 months - 11289.6 (210 X 53.76).

Do not rush to get scared, the gas boiler for heating the house does not make sense to operate at full capacity for seven to eight months. Such cold days are only a few dozen, the rest of the time, consumption is much less. Taking into account the controlled decrease in heat generator output, in the central strip of Russia the estimated seasonal gas consumption is divided in half. That is for our object will need about 5645 cubes (11289,6: 2).

For systems where the liquefied gas is used as an energy source, the formula will be similar. The 20-kilowatt aggregate uses approximately 2 kg of fuel per hour. In a day - 48 kilograms, for the entire season - about 5 tons.

Important! One liter of propane-butane in the liquid phase weighs about 550 grams (propane - 510, butane - 580). It is also worth noting that the cylinders for storage and transportation for safety reasons never completely fill up.

Propane consumption for some types of LPG-based heating appliances

Now, knowing the tariffs of suppliers, we can translate abstract figures into banknotes that we will have to part with.

How to optimize gas consumption

The above calculations show the averaged hypothetical fuel consumption. But it does not mean that these indicators are easy to get by themselves. The real results can be affected by the mass of various factors, overdelivery of gas relative to the calculated - not uncommon. Approaching the figures obtained on paper is not easy, and it is even more difficult to achieve significant savings. Let's try to formulate some practical advice.

Choosing the right gas boiler for heating the house

• The power of the heat source must correspond to the needs of the building in the replacement of heat losses. It would be a mistake to think that "a good stock will not be superfluous". Too productive boiler, working half-strength, can consume more than the one that is suitable for calculations. In turn, too weak a heat generator will work at the limit of its capabilities. Both modes are far from optimal, for which manufacturers just point out the efficiency.

Important! It is believed that the most economical will be a boiler with a small margin of productivity, of the order of 25-30 percent.

• Choose models with the best efficiency. Real performance indicators start at 90 percent, on average it is 92-95 percent. Now there are gas generators of heat, which allow to extract heat, which usually goes along with water vapor (about 20% in the extracted combustion products), which are in the waste gases. Additional energy is collected by condensing the vapors in the secondary heat exchanger. These innovative boilers are called condensing boilers. The efficiency of these devices can approach 108 percent, which allows you to quickly recoup the relatively high initial costs and save up to 15-20 percent of gas.

Condensing boiler unit

Important! Acquire heat generators of famous firms. Unfortunately, not all manufacturers honestly indicate characteristics in passports and catalogs.

• The efficiency of the heating system depends heavily on how the gas burner of the boiler for heating the house is arranged. For example, burners that allow smoothly adjusting the power in the entire range (modulated) will be more economical than multi-stage ones, for which two modes are usually available - maximum and "waiting" (about 30-40 percent of capacity). A multistage, as a rule, is more advantageous than single-stage ones, which when they reach the set temperatures are simply switched off or on.

Unambiguously, multi-fuel burners designed for the use of gas and liquid fuels are less efficient than mono-fuel burners - designed only for burning gas.

• Open (natural draft) or closed combustion chamber. In boilers with a closed combustion chamber, air for creating a combustible mixture is forced by means of a fan burner. The gas in such heat generators is burned more fully, and the "exhaust" is obtained purer. Often horizontal coaxial chimneys, in which the supply air masses are first heated from the outgoing smoke before entering the furnace. It can hardly be calculated how much more economical the boiler will be with a closed camera, most likely, it will be seen from the efficiency.
• If it is necessary to heat water for hot water supply, consider the option of installing a boiler indirect heating. Often in terms of energy consumption, this solution proves to be more profitable than using a dual-circuit boiler.

Scheme of the indirect heater

Use of automation

One of the main functions of automation is to move the boiler into an economical mode of operation. The more technologically and sensibly it is, the less gas it will be consumed. To this end, feedbacks between the heat generator and the system (and the environment) are established through sensors and controllers. Receiving information from sensors, the boiler can react to the heating level of the coolant, or to the temperature of the air in the rooms or even on the street. You can control the equipment remotely, for example via a remote control or a smartphone / PC.

Essential gas savings can be achieved if it is possible to program the operation of the boiler using a timer. For example, without compromising on comfort, you can reduce system performance at night or in the "business" time (from 8:00 to 15:00) when there is no one at home.

Important! It is believed that reducing the temperature in the rooms by only one degree will save from 3 to 5 percent of gas for heating the house.

Many modern boilers are equipped with an informative control panel with an LCD display

Warming of enclosing structures

Even heating with gas in a private house can be unprofitable if the heat freely leaves on the street. Improving the insulating characteristics of the building, approaching the concept of "zero house", you can reduce gas consumption.

In addition to warming the walls and roof, the cottage should take care of the heat loss through the basement overlap, as a rule, the most powerful cold bridges are balcony slabs "cutting" the outer wall. Vulnerable sections are considered door and window openings, for example, do not get involved in large areas of glazing, no matter how high-quality the door, it is recommended to provide a tambour in the entrance area. Special attention should be paid to ventilation, for example, to install a heat recovery system.

Additional heat source

An alternative to gas heating at home is relevant, not only if there is no possibility to crash into the main pipe. The fact is that in order to stimulate savings in some countries, gas tariffs for the population are higher, the higher the consumption. In fact, a preferential price is set for a certain amount of gas used per month.

Therefore, in order to stay within the limits of a specific tariff category, it makes sense to integrate an additional heat source into the heating system, for example, some modification of the solid fuel boiler, solar collector  or an air heat pump.

Combined gas / coal heating system

Optimizing the operation of the heating system

Practice shows that a correctly designed and qualitatively assembled heating system is the most important condition, without which one should not expect to save resources. In this case, the following points are considered:

• type of wiring,
• arrangement and method of tying the heating devices,
• selection of suitable heaters,
• cross-section of pipelines in various sections,
• nomenclature and characteristics of shut-off and control valves.

One of the main features of a quality system is the possibility of accurate balancing, where the user can distribute heat evenly in all rooms. Or, on the contrary, with the help of cranes or thermograms, consciously transfer heating in some rooms from a comfortable working room to a standby mode. For example, it is possible to heat unused guest rooms, a closet, a wardrobe.

Adjustable thermal head with electronic control

Working on the project, specialists compulsorily produce hydraulic and thermal calculations, as a result, the customer receives the necessary diagrams and drawings for mounting, as well as specifications for equipment and components. It is proved that the money spent on professional design will pay off in the first heating season.

Video: how to reduce gas consumption by boiler

Gas in the house

Gas is used today, almost in every home. With its help water for domestic purposes is heated, food is prepared and the house is heated. Gas supply allows making life comfortable, and household chores are less burdensome. But what is the price of the question? It is especially important for heating the building. After all, the cost of gas for heating the house is the lion's share in the overall cost structure. You can not call this type of fuel the most expensive, but it has never been a gift. Therefore it is desirable to calculate the gas consumption even at the stage of designing the heat supply system.

Advantage of gas as fuel

Given the established consumer price, we can say that gas is by far the most economical fuel for most regions of the country. Its composition is characterized by an insignificantly low content of sulphurous constituents, which largely determines the efficiency of blue fuel. When burning, very few air polluting compounds are released, which makes it possible to talk about its environmental friendliness.

Blue fuel is characterized by another positive factor - it does not cause corrosion of the metal parts of the boiler when water is heated. And regarding soot and soot, it has no equal compared to other types of energy resources (except electricity). Consequently, there is no need to clean the chimneys. The overall picture is organically complemented by the durable work of all types of gas heating appliances.

Example of calculation of gas consumption

According to the regulatory data obtained as a result of the practical use of heating systems, in our country, about 1 kilowatt of energy is required to heat 10 square meters of living space. Proceeding from this, a room of 150 square meters. can heat a boiler with a capacity of 15 kW.

15 kW * 30 days * 24 hours a day. It turns out 10 800 kWh. This figure is not absolute. For example, the boiler does not work all the time. Moreover, with a rise in temperature outside the window, you sometimes even have to turn off the heating. The average value in this case can be considered acceptable.

That is, 10 800/2 = 5 400 kW / h. This is the rate of gas consumption for heating, which is quite enough to provide a comfortable temperature in the house for one month. Taking into account that the heating season lasts about 7 months, it is calculated required amount  gas for the heating season:

7 * 5400 = 37 800 kW / h. Taking into account that the cubic meter of gas generates 10 kW / h of thermal energy, we get - 37,800 / 10 = 3,780 m3. gas.

For comparison - 10 kW / h (according to statistical data), you can get from burning 2.5 kg of oak wood with a moisture content of not more than 20%. The rate of firewood consumption in this example is 37,800 / 10 * 2,5 = 9,450 kg. And pine need more.

Ways to save gas

Method of saving gas - economical mode of the boiler

The data in the example are given in order to clearly calculate the heating of the house. But they do not take into account the need for heating water for domestic needs and cooking. In each case, an adjustment of the result is necessary. Its value depends on the number of inhabitants of housing and their individual needs.

You can save on heating, which consumes the lion's share of gas, in the following ways:

1. Warming of walls and ceilings, installation of energy-saving double-glazed windows, sealing the outline of the entrance door.
2. Use of technological gas equipment.
3. Installation of efficient automatic control systems for heat supply. Producers tirelessly say that its payback does not exceed 2 months.

The simplest and most feasible way is to reduce the temperature of comfort in the room. One-two degrees for the human body is not very noticeable, and according to the results of the heating season, a very decent figure will turn out.

Related Posts

Heating the house with natural gas is considered the most convenient and economical for the consumer. The facilities in use provide modern heat generators, with a high degree of automation, protection from leaks, a drop in pressure in the system and a reduction in draft in the smoke exhaust system. Economicality is ensured by the relatively low cost of blue fuel and the high efficiency of modern heating boilers. The final consumption of blue fuel depends on the power and efficiency of the boiler unit and, as a consequence, the financial costs of the homeowner. That is why most of our compatriots are interested in the average gas consumption for heating the house.

What affects the consumption of gas mixture

As already mentioned above, the fuel consumption is affected by the power and efficiency of the boiler. But experts say that a greater impact on the consumption of blue fuel is provided by:

• climatic features in the region where equipment is expected to be used;
• the construction of the building, its volume and architecture;
• heat losses at home, which are calculated based on the thermal conductivity of building materials;
• the quality of insulation of the bearing exterior walls of the house;

The capacity of the heating device is calculated in accordance with the regulatory requirements for each room in the house, taking into account all of the above factors. These calculations are rather complicated and are made at the stage of designing the heating system of the building.

The recommended capacity of the boiler is always higher than the calculated parameters required for heating a particular house. For example, if the documentation recommends the use of a boiler with a capacity of 15 kW, then the heating system actually needs 10-12 kW of heat. It is the real data that must be used when calculating the gas flow.

For approximate calculations, it is possible to use a simplified method where for heating 10 m 2 of a private house, 1 kW of thermal power produced by a heat generator is required.

Example for centralized heating

Important! The initial data are taken for a G 20 gas mixture. It is it that enters the houses from a centralized highway.

V= Q / (Hi  x Efficiency)

where:

V  - fuel consumption m 3 / h;
Q  - estimated thermal power, necessary for heating the house;
Hi  - the lowest value of specific heat at combustion of fuel. In accordance with the standard DIN EN 437, for fuel grade G 20 this value is equal to 34.02 MJ / m 3.
Efficiency  - the efficiency of the boiler, the value of which shows the efficiency of using the heat energy released during the combustion of the gas mixture, to heat the coolant.

If a highly efficient condensing boiler is used for heating, the value of Hi for G 20 gas is 37.78 MJ / m 3.

1. The first thing to do is to translate the joules into cotton wool. To do this, you need to know that 1 kW = 3.6 MJ. For G 20 gas, the heat of combustion will be 34.02 / 3.6 = 9.45 kW.
2. The value of 10 kW is the amount of heat that will be required to heat the house under the most unfavorable conditions. During the rest of the heating season, much less power is required to heat the house. Proceeding from this, for correct calculations it is necessary to use half of the recommended power. In our case, half is 5 kW.

We substitute the obtained data: V = 5 / (9.45 x 0.95) Total: gas consumption for heating the house 100 m 2 is 0.557 m 3 / h. Based on the received data, it is easy to calculate the consumption of main gas per day and for the entire heating season, which in most regions of Russia lasts 7 months.

• Within 24 hours, 0.557 x 24 = 13.37 m 3;
• For 30 days 13.37 x 30 = 401.1 m 3;
• For 7 months (heating season) 401.1 x 7 = 2.807.7 m 3.

Knowing the tariffs for paying a cubic meter of "blue fuel" you can calculate the financial costs of heating for the billing period quite accurately.

Example for standalone building heating

Each owner a country house knows that gas is the most affordable energy source for the organization of the heating system. However, it is by no means always possible (including financial) to tap into the main gas pipeline. In order not to abandon all the opportunities that gas heating opens, many homeowners use liquefied gas, which is stored in specialized tanks - gas tanks or cylinders.

In order to really assess the consumption of liquefied propane-butane mixture, and at the same time its financial costs for heating the building, it is possible to make a simple calculation based on the formula that was described above. For example, let's take the conditional structure we have already considered, with an area of ​​100 m 2, the efficiency of the heat generator is 95%.

For the calculations, the following data will be needed: balloon gas is a mixture of grade G 30. It has a density of 0.524 kg / l. Heat released during combustion 1 kg. of this mixture is 45.2 MJ / kg.

1. For simplicity of calculations, translate the value of the heat released from the combustion of fuel from kilograms to liters: 45.2 x 0.524 = 23.68 MJ / l.
2. Translate the joules into more understandable watts: Recall that 1 kW = 3.6 MJ. Total: 23.68: 3.6 = 6.58 kW / l.
3. For correct calculation, take 50% of the recommended boiler output. 50% of 10 = 5 kW.

So, when heating the house gas cylinders, the flow rate of the fuel mixture G 30 will be V = 5 / (6.58 x 0.95); V = 0.8 l / h.

For a day, the heating of a country house with balloon gas will pull the consumption of the latter: 0,8 x 24 = 19,2 liters.

• For the month: 19.2 x 30 = 576 liters;
• For the heating season (an average of 7 months) - 576 x 7 = 4032 liters.

Those who are interested in the number of cylinders need to use the following calculation scheme: It is known that the capacity of standard propane-butane cylinders is 50 liters. For security reasons, they are fueled by no more than 85%, which is 42.5 liters. Now it's easy to calculate the number of cylinders you need:

• For a month 576 / 42,5 = 13-14 pcs.
• For the heating season 4032 / 42,5 = 95 - 100 pcs.

The obtained average value of the flow of liquefied gas will be useful for the calculation of financial investments only for heating the house  in the period of one heating season. When using a gas stove and gas appliances, the data will increase significantly.

Home owner, and the countryside especially, always in search of price and quality. At the same time energy supply of the house is the most important task from the list. I already wrote about that, and today I will tell you about autonomous gasification  private house.

The creation of a gas supply system is the only possible option to provide a warm house of 150-200 m2.

The idea of ​​an autonomous gas supply to a private house  at a modern level of technology development is becoming more attractive. This is perceived by many as a synonym for independence. To some extent, it is true.In autonomous gasification  independence is conditional - liquefied propane-butane gas should still be delivered, and the system should be serviced.

How much does an autonomous gas supply cost?

There are two levels of assessment  system of autonomous gasification - the initial and subsequent. First, we are amazed at the scale of costs and work, and then rejoice in the level of comfort and forget about costs.

However, the main thing in gas supply is security.

Security, of course, specialists will evaluate, but most of all tenants are interested in it, so do not save on equipment - it's better to save on gas volume.

Optimal price  safe system with high-quality equipment and gasholder for 4000 - 5000 liters will be 250 000 - 300 000 rubles. Of course, you can do less, but at the expense of the risk of using poor quality equipment.

Equipment

Autonomous gas supply consists of:

• gasholder;
• devices that control the gas holder;
• piping systems that feed gas to the house and distribute it inside the house;
• instruments for thermal expansion on pipes;
• stop valves.
• devices for automatic regulation of system operation.

The key moment in the choice of an autonomous system is, of course, gasholder. The final costs depend on its volume, device and installation.

The larger the gasholder, the greater the requirements for it.

Gas consumption

It all depends on the needs, the state of the house, climate and other sources of energy. If gas is the main source of heat, then the flow can be calculated by the formula:

1) the area of ​​living quarters is divided by 10, we get the capacity of the equipment;
2) this value is divided by 2, since usually the equipment is not used at full capacity;
3) the number obtained is multiplied by the number of days in a month (30), and by the number of hours in a day (24), this is the amount of energy in KW / h;
4) proceeding from the fact that a liter of gas gives out 11.2 kW / h, the previous value is divided by 11.2, which will be an indicator of fuel consumption.

For clarity  give examples of calculating the amount of gas per month.

The gas consumption for heating the house is 100 m2: 100/10 / 2x30 x24 / 11,2 = 321 liters.

Gas consumption for heating the house 150 m2: 150/10 / 2x30 x24 / 11,2 = 482 liters.

The gas consumption for heating the house is 200 m2: 200/10 / 2x30 x24 / 11,2 = 643 liters.

If the house has duplicating energy devices like the gas flow can be reduced.

The rate of gas for heating the house

Limitations in consumption utilities  can manifest themselves in minimum tariffs, permissible capacity and resource release rates. The need for the existence of norms appears where there are no counters for one reason or another.

Consumption norms  of natural gas are determined by the population in the following areas of its use:

• cooking meals per person per month;
• heating of water with autonomous gas and water supply in the absence or presence of a gas water heater;
• individual heating of living quarters and outbuildings;
• for the needs of keeping pets;

Norms of gas for heating  are calculated on the basis of the expenditure in equal shares by the months of the whole year. They are measured in cubic meters per 1 m 2 of heated area or per 1 m 3 of heated volume.

If a multi-storey building, then the calculation is made for each floor separately. As a rule, mansards, basement floors, and also some basements are ranked as heated rooms.

Normalization of gas use for heating of farm buildings  is produced in cubic meters of gas per 1 m 3 of the volume of the heated room. In large Russia, the rate of gas consumption for heating is carried out taking into account regional features, so they are formed and established in regional authorities.

On average, in 2015, in residential single-storey single-family houses, the norm of gas for heating ranges from 40 to 567.0 m 3 per month.