If it is impossible to connect to the main gas pipeline, heating units operating on liquefied gas are one of the options for efficient space heating. The use of a liquefied fuel mixture for heating buildings is similar to heating with mains gas, but requires constant cash costs for the purchase of fuel.
Design features of heat generators operating on liquefied gas
The difference between the design of a liquefied gas boiler and a conventional gas apparatus operating from a main gas pipeline is the use of a nozzle designed for a higher fuel pressure.
Some brands of boilers are initially designed for the possibility of switching to liquefied fuel by replacing the standard nozzle with a device of a smaller diameter. To carry out this event, you will need special nozzles and additional structural elements for the boiler. Sometimes they come with the unit, sometimes you have to purchase them yourself. The cost of replacing the nozzle with the purchase of the required parts will be approximately 2-3 thousand rubles. It should be noted that such reconfiguration of the boiler must be carried out by specially trained personnel.
Types and characteristics of liquefied gas
Until recently, the main fuel for LPG boilers was liquefied natural gas. But its storage and use required significant costs, which were justified only when heating entire residential complexes. Gradually, a more economical gas mixture of hydrocarbons began to be used to organize autonomous heating of individual housing. Its main components: isobutane, butylene, isobutylene, N-butane, propylene.
A slight increase in the pressure of the propane-butane mixture causes its transition to a liquid state, which makes it possible to easily transport and store. When the pressure is reduced and the temperature is increased, the mixture becomes gaseous.
Advantages of using propane-butane liquefied gas for heating or other needs of the population:
- The production and processing of this gas mixture is not associated with high costs or technical difficulties.
- Propane-butane gas is characterized by a small amount of harmful emissions into the atmosphere.
Difficulties arising from the use of liquefied gas for heating:
- When filling cylinders at a gas station, there is a possibility of purchasing a low-quality, diluted product, which will lead to unstable and inefficient operation of the unit.
- The replacement of the cylinder is carried out manually, this event requires the application of physical strength, so it can not be performed by everyone.
- Liquefied gas is an explosive product that must be handled with care.
- To ensure complete combustion of the propane-butane mixture, it is necessary to organize an effective ventilation system in the boiler room.
Features of the organization of autonomous heating using liquefied gas
When choosing a unit designed to operate on liquefied gas, it is necessary to pay attention to its ability to operate at low pressure. This will completely use up the gas pumped into the cylinder.
The high efficiency of the unit also plays a big role when choosing a conventional gas boiler, but for an apparatus operating on a liquefied gas mixture, this indicator is especially important. Installing a unit with low efficiency will make it economically inexpedient to use bottled gas.
Based on the results of calculations and analysis of practice, it can be concluded that for heating and supplying hot water to a housing construction area of about 100 m 2, an average of two cylinders per week is required. That is, approximately 8-9 cylinders of gas are consumed per month of the heating period. With the cost of refueling a cylinder of about 500 rubles, heating costs per month will be approximately 4.0-4.5 thousand rubles. If you need to hire a transport to deliver fuel, the costs will be even higher.
The liquefied gas heating system has both advantages and disadvantages. But if there is a prospect of supplying main gas, the use of bottled liquefied fuel is the most rational solution. Replacing bottled gas with main gas will be a simple, inexpensive and quick event.
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