Gas installations for heating a home are economical. In addition, the automatic heating process almost completely eliminates the involvement of human labor. The total benefit of using gas heating systems is calculated individually.
For example, the gas consumption for heating a house of 150 m2 depends on the power indicators of the equipment. The higher the power, the greater the fuel consumption. The total amount of gas consumption can be calculated by multiplying the power of the equipment by 720 (the average number of hours in a month). You should remember about the approximate correctness of the data obtained, because the time of use directly depends on the temperature, latitude belt, insulation of the house.
In most calculations, it is recommended to calculate the monthly average consumption - for this, the total number from the previous formula is divided in half.
Is it beneficial to install autonomous heating?
The cost of acquisition, installation and commissioning of autonomous heating equipment that runs on a mixture of propane and butane is much lower than the connection to the mains.
This system also significantly reduces the risk of a sudden drop in pressure. Autonomous heating is equipped with tanks that support the possibility of using fuel after it ends in the main tank.
In the event of a power outage or gas supply, the safety system will block the solenoid valve. After resuming the feed, restart the system.
Opinions of experts
Profitable solutions are offered by Forumhouse. The gas consumption for heating a house of 150 m2, according to experts, depends on the efficiency of the boiler, the correctness of the installed system, and the manufacturer of the equipment. For the most detailed costing, consider:
- the cost of combustible materials;
- operating costs;
- the cost of equipment, its delivery and installation;
- air temperature during the cold period;
- mode of residence in the house (temporary or permanent);
- the degree of modernization of the building (material of construction, the presence of insulation, etc.).
Example: Forumhouse user used the calculated data:
- house area - 150 m 2 ;
- the duration of the heating period is 6 months;
- System efficiency - 0.5;
- the specific power of the climate zone is 1.5 kW.
After calculations, the following results were obtained:
- the average volume of raw materials to obtain 1 kW / h of heat is 0.1 m 3 ;
- gas cost (approximate) - 5 rubles / m 3 ;
- the cost of 1 kWh of gas - 0.5 rubles .;
- heating costs per season - 11,000 rubles.
Advantages and disadvantages of using gas boilers over large areas
Gas heating has its advantages:
- When using this fuel, the boiler walls are not damaged by corrosion. This factor increases the life of the equipment.
- Gas is an environmental material. When it is burned, harmful substances practically do not enter the atmosphere.
- Due to the small amount of sulfur, high gas combustion efficiency is achieved.
The use of gas boilers is also beneficial:
- Installation of equipment is much cheaper than connecting to the trunk;
- Gas in cylinders has the best properties.
- The operation of the boiler does not depend on pressure and breakdowns in the main.
- Significantly reduced gas consumption for heating a house of 150 m2 in winter.
- Modern equipment is equipped with various security systems. This is important, because gas is a fire and explosive substance.
The disadvantages include:
- the need for continuous replacement of cylinders;
- dependence on atmospheric pressure;
- shutdown of system automation in case of lack of electricity.
Important! Regardless of which system the boiler is powered on (autonomous or main), at the beginning of the heating season it is necessary to check and adjust the settings. Repair should only be done by a specialist. Do not forget about the mandatory ventilation of the room and compliance with safety precautions.
The effect on the gas flow of the gas tank in the house from 150 square meters. m
The main parameter that affects the gas consumption for heating a house of 150 m2 from a gas tank is the evaporation mirror.
A gas tank is a special tank for storing gaseous substances.
Evaporation Mirror - the area of natural gas evaporation inside a gas tank. The larger the area, the greater the amount of heat.
The gas consumption and heating efficiency is influenced by the climatic conditions of a particular area. Therefore, specialists should be involved in the calculation and selection of equipment.
One refueling tank with a capacity of 4.8 tons is enough for about 160-240 days of work. Moreover, the consumption per 1 m 2 is from 20 to 30 liters per year. In the warm period, the amount of fuel used is significantly reduced.
When calculating gas consumption, one should take into account the basic set of equipment, losses in the gas pipeline, additional modules (number and area of radiators, floor heating, etc.).
The average rate of gas flow from the gas tank is given in the calculations.
Approach to the choice of a heating installation of a house with an area of 150 square meters. m
It should be determined:
- the most affordable energy carrier in the region;
- ease of use (area of the house, complexity of equipment, etc.).
After - calculate the costs of using various types of fuel. For example, which is smaller in volume - the cost of diesel fuel, wood, coal or gas consumption for heating a house is 150 m2.
It is also necessary to consider the environmental friendliness of the product, the availability of its delivery.
How to reduce gas consumption
Each fuel saving measure per 1 square meter can significantly reduce the gas consumption for heating a house of 150 m2. These include:
- Wall insulation (inside or outside), as well as floors and roofs, window replacement.
- The use of various methods to optimize the heating process (for example, automatically reducing the amount of fuel supplied, turning off the system, etc.).
- Organization of the launch of heated air into the system. More than half of the energy spent on heating cold air, which enters the building from the outside.
- Application of the "Warm floor" system. In this case, the coolant is heated to about 50 °, and in the radiator system to 90 °.
Example gas flow rate calculation
In reality, for heating 1 square. m of the room requires approximately 50 watts of energy per hour. Accordingly, the gas consumption for heating a house of 150 m2 will be 7500 W / h, or 7.5 kW / h.
To calculate the required amount of fuel for a given area, the formula is used:
L = Q / (qh x 0.92), where:
- L is the amount of fuel consumed in 1 hour, m 3 .
- Q - power required for heating, kW.
- qh is the lowest heat of combustion of the fuel (for this case, 10.175 kW / m 3 ).
- 0.92 - the efficiency of the boiler installation.
Thus, the gas consumption for heating a house of 150 m2 in cubes looks like this:
- 7.5 / (10.175 x 0.92) = 0.80 m 3 / h of natural gas.
Next, calculate the amount of fuel that is used per day:
- 0.80 x 24 = 19.2 cubic meters, and per month - 19.2 x 30 = 576 cubic meters.
Consumption per 1 m2 per month will be: 576/150 = 3.84 cubic meters.
Balloon gas consumption for an area of 150 m2
In order to calculate what the gas consumption for heating a house of 150 m2 expects the owner, it is necessary to calculate the gas consumption in kilograms, and then translate the value in liters.
For example, the calorific value of gas in the amount of 13 kW / kg. Substitute in the formula above, and get:
7.5 / (13 * 0.92) = 0.62 kg / h.
One liter of liquefied gas weighs approximately 0.55 kg, which means that an hour of heating the house will require: 0.62 / 0.55 = 1.12 liters. Per day - 27 liters, and per month - 811.
Given the standard volume of the cylinder (42 l), you can calculate their required number for 30 days: 811/30 = 19 pieces.
Important! By choosing the right equipment for heating and combustible materials, you can significantly save on utility bills. Warming a house further reduces heating costs.