Autonomous gasification of cottages, private houses and even small villages is an effective solution to the problem of independent energy supply, including heating and hot water supply. Therefore, every year more and more supporters find liquefied gas (LPG) boilers.
More affordable and safer fuel for many parts of the country can be used from cylinders or underground storage. The gas itself is a propane-butane mixture in a liquid state - it is convenient to store and transport to the place of use.
Gas holder for liquefied gas supply
Principle of operation
LPG boiler , by design and principle of operation, it is a conventional gas heat generator - due to the combustion of gaseous fuel, the necessary heat is released and heats the heat exchanger. The coolant "takes" and transfers thermal energy along the contours of the heating system.
Distinctive features - this is the ability of the boiler to function without failures at a reduced pressure of gaseous fuel and in the installation of a special nozzle (the diameter of the jet holes for a propane-butane mixture will be smaller than for natural gas). Many manufacturers initially supplement their devices with a set of injectors in order, if necessary, to transfer the boiler to liquefied gas . In addition to installing special nozzles, for the efficient operation of the equipment, the parameters in the electronic board of the heat generator are changed and the gas valve is reconfigured.
It is possible to ensure the uninterrupted operation of a thermal device by connecting several cylinders to it (up to 15 units can be combined into a group), or an underground reservoir - a gas tank. The gas pipeline is connected to the boiler through a reducer, which can provide a gas flow rate of 1.8-2.0 m 3 \ h.
The harness must also include a safety block : pressure regulator, safety valves, flame sensors, pressure and temperature control.
The principle of operation of boilers on liquefied gas
Choosing a gas boiler for liquefied gas
When buying a heat generator, you should consider its technical characteristics:
- Power. This is one of the most important parameters - it depends on the power whether the equipment can cope with heating the entire area of the building and whether it will provide hot water in the required volume.
- Boiler type. The equipment may differ in the method of installation (wall or floor), the possibility of providing hot water (single or double circuit), the type of combustion chamber (open or closed).
- efficiency. The higher the efficiency, the more efficient and economical the operation of the equipment. On sale, you can choose boilers with an efficiency of 90 to 94%.
- Gas pressure. The heating unit must be designed to operate in a low gas pressure network - the minimum value in the range of 3-5 mbar must be indicated in the passport. The lower the value, the more gas will be produced from the cylinders, without any residue.
- Gas consumption. For the production of 1 kW of heat, the consumption of a liquefied gas boiler is approximately 0.12 kg / h. This means that for a heat generator with a thermal output of 15 kW, the consumption of liquefied fuel will be about 1.7 kg/h. The given figures are conditional, since the intensity of gas consumption depends on many factors: the power of the equipment, its efficiency and the level of automation, the required temperature in the premises and outside air, the need for hot water supply and the heat loss of the heated building.
Before buying thermal equipment for working on bottled gas, the necessary calculations are carried out that can show the profitability of installing, operating and maintaining such a heating system.
Overview of popular models of liquefied gas boilers
The market presents models of both imported and Russian manufacturers in different price ranges.
Almost all companies offer gas boilers that can be reconfigured to work on liquefied gas:
| Manufacturer | Model | Maxthermal power, kW | Efficiency, % | Overall dimensions (HxWxD), mm | Description and distinctive features | price, rub. |
| Baxi | ECO Four 1.24 | 24 | 90,9 | 730x400x299 |
|
38 000 |
| MAIN 5 14 F | 14 | 92,9 | 730x400x299 |
|
42 000 | |
| Protherm | Cheetah 11 MOV | 11,0 | 88,4 | 742x410x311 |
|
34 900 |
| Panther 25 KTV | 24,6 | 92,8 | 742x410x311 |
|
42 000 | |
| ZhMZ | Comfort AOGV-11.6-3 | 11,6 | 86,0 | 850x310x412 |
|
15 200 |
| Station wagon AKGV-17.4-3 | 17,4 | 88,0 | 1050x420x480 |
|
21 500 | |
| Concord | DON KS-TG-16/20S | 20 | 90 | 775x405x1070 |
|
23 700 |
If you need to create a heating system, but you do not have the opportunity to connect the boiler to the main gas pipeline system, and it is too expensive for you to use electricity as fuel, then you have landed on the page you need! Here we will talk about how to choose a boiler that uses liquefied gas for operation, its advantages and disadvantages.
Wall-mounted boilers for liquefied gas
At present, perhaps, gas boilers with a wall-mounted installation option are in greatest demand among Russian consumers. This is due to the fact that such models occupy a minimum of room space; many modern models can be mounted even in residential areas (kitchens, hallways, bathrooms). Single-circuit devices will help create an autonomous heating system, and double-circuit heating boilers will also provide hot water in the house.
Where to buy wall-mounted heating boilers
Moscow is a large city with many physical stores specializing in the sale of climate control equipment. But modern users are increasingly giving preference to shopping online without leaving home. The MirCli online store offers its visitors the most comfortable and profitable purchase conditions. Our catalogs contain only the best original models of goods. We bring to your attention the rating of the most popular manufacturers of heating equipment presented in our online catalog:
- BaltGaz is a domestic manufacturer that has been selling for over 20 years
- Baxi is an Italian brand with a history of more than 150 years.
- Fondital is another Italian company that has been selling climate control equipment for almost 50 years.
- Bosch is a German manufacturer of household and industrial appliances
- Rinnai is a company from Japan with almost 100 years of history, rightfully won many awards for its inventions.
You can buy heating units from these and many other companies in the MirCli online store. In the matter of choice, highly qualified specialists will help everyone. The price of all wall-mounted boilers will please every user, and numerous promotions will allow you to make a better purchase.
So I ask, WHERE are the "ambushes"!IMHO, especially to save money / time will not work. If it works out at all. Yes, and Tech. Without. comply with propane, also costs money + transport costs / risks.
::: it's clear that freebies won't work, but if the same money is obtained with firewood, but there is less gimor - "why pay more", i.e. why work as a stoker?
It is not a fact that everything will be stable with the filling of cylinders. In Irkutsk, after explosions of household gas in residential buildings (gas was in cylinders), it is forbidden to fill cylinders at gas stations. The gas supplied by the Regional gas burns very badly, there is a lot of condensate, they are filled into a 18 kg cylinder. and it's a pleasure
costs 560 rubles. To date, the price of gas at gas stations is already 13 rubles.
So, it is not known what tomorrow is preparing!::: There can be ANYTHING in our Russia - you won't be insured... But EVERYTHING will rise in price - and on average the proportions will be preserved. Here is bad gas - yes, it can be a problem, but a gas station is nearby (a couple of kilometers), the workers cooked and heated all the time on this bottled gas - there were no complaints ... 25 liters was enough for everything for a month ... Safety precautions must be observed and correctly mount the system - there should be no problems (and we are all non-smokers)
You have real figures for electricity last year. For gas, they will be exactly the same. Then you convert kWh to liters and see the money. For gas, the efficiency can be 5-10% less. By the way, 10-12 thousand rubles. - how many kWh?
::: I have a house in SNT - so I pay for electricity as if I have gas - to the maximum. Last year it was 2.30 RUB/kWh
Now I switched to a two-tariff one - at night 1 ruble, in the afternoon (8-21) - 2.90. Now in the summer for ALL electricity it turns out about 1000 rubles / month (electric stove, washing machine, dishwasher, light, household appliances). I use energy saving lamps. It was last winter, but I had to drown myself not when I wanted to, but when I could (before going to bed and in the morning). And the dns were VERY uncomfortable on wet and windy days ... Turn it on, but it’s better not to look at the meter without validol. And in January 2009 they paid 18,000 rubles (holidays, damn it ...). I used your numbers when calculating, but the fact that a gas boiler allows you to save fuel by consuming as needed is for sure. Naturally, on cold days (-10 -15 degrees), consumption will be a little more, and if the windows are not kept open, then you can’t really go broke ...Once again, THIS IS MY THOUGHT. So far I haven't heard ANY compelling argument against it. All problems are solvable and do not require investments "incompatible with life" ...
My thoughts:::
1. With a cold winter - I can handle it - I make an extension to the house, insulate it, bring a small heating radiator there, make a natural hood with a valve ..
The house is heated - the gas house is also heated.
2. When it's hot, I removed the cylinders and went to the garage ... Plus - by the end of the heating season, you can fill ALL cylinders - keep them to a minimum.
Last winter, I heated a little with an Italian gas heater with a 25 liter cylinder (remained from past summer seasons) - stoker - "tashket" ...
But "this smell" ... And in the summer he calmly stood in the house in the boiler room and "did not ask to eat" ... Although the heat outside was under 40.
=============================================================Using my example and your statements, we are trying to find a CONVENIENT BUDGET option for heating a house in this "gas-rich (and not only) country of victorious terry capitalism with a Soviet-gangster mug"
The use of liquefied gas in gas boilers is becoming increasingly popular. This trend has only recently begun. Liquefied gas has a number of advantages:
- Reducing the volume of gas by 600 times during its liquefaction while maintaining the same energy intensity.
- Ease of transportation and storage.
- Purification of gas from impurities in the process of liquefaction.
A large number of gas boilers can be retrofitted to operate with liquefied gas. To do this, you should change the standard nozzles to special ones with a much smaller diameter. If there is no pressure regulator in the boiler automation, then a reducer will need to be installed at the outlet. But the downside of such an upgrade is that gas consumption by a gas boiler and its use will directly depend on weather conditions and the quality of home insulation. Usually, liquefied gas from a cylinder is not completely selected, and some of it remains at the bottom.
Recommended! To use all the gas in the cylinder, you should choose gas boilers that can operate at reduced pressure. You can also resort to the method of heating the cylinder, which speeds up the process of gas formation.
Calculation of the efficiency of gas boilers on liquefied gas
A gas boiler running on liquefied gas does not require re-equipment when switching to a centralized gas supply. Therefore, the transition process will be minimally costly. To understand how much gas a gas boiler consumes, it is necessary to estimate the heated area. Usually, for an average country house, the consumption per month is from 3 to 8 cylinders. Some people combine cylinders into cassettes using combs, but this does not allow in the future to provide the house with a constant supply of a new portion of gas. (See also: )
For houses in which long-term use of liquefied gas is planned, an underground tank with a volume of up to 6 thousand liters can be provided. For such construction projects, special regulations are provided and it is necessary to obtain a permit for the construction of such premises.
The cost-effectiveness of using liquefied gas and its consumption depends on many factors. But in any case, the cost of heating from a liquefied gas boiler will be more than for a centralized gas supply.
A mandatory procedure when using gas boilers on liquefied gas is to clean the holes of the jets. They periodically become clogged, as aggressive sulfur compounds are present in liquefied gas.
If a choice is made in favor of using columns operating on liquefied gas, then it is necessary, first of all, to calculate the economic efficiency of such a solution. Except when this option is the only one to achieve optimal heat transfer in the house. When choosing gas boilers, you should pay attention to such manufacturing companies as Gazlux and Immerges.
Gas wall-mounted boilers Gazlux
Gazlux equipment is supplied from China, where it is manufactured at Macro and Roc heating equipment manufacturing plants. Currently, wall-mounted gas boilers and instantaneous gas water heaters are presented on the modern market.
Heating gas boilers Gaslux are excellent for use in cold climates. They have an annular valve design, which is provided with a closed combustion chamber and exhaust of combustion products. It is this design that does not allow the boiler to freeze during a power outage.
Types of wall-mounted boilers Gazlux
Double-circuit boilers for liquefied gas Gazlux are divided into three classes:
- Economy - boilers with mechanical control with LED indicators, a pump, an expansion tank and the necessary safety elements. Boilers of this model have a capacity of 7.5 kW to 18.2 kW and can heat up to 11 liters of water per minute.
- Standard - boilers equipped with touch control, LCD display, timer, pump, tank and biometric heat exchanger. They have power adjustment from 11 to 24 kW and can heat 13.7 liters of water per minute. Such gas boilers for liquefied gas have similar features with Economy model boilers.
- Premium - these are boilers that are produced with an expansion tank, pump, timer, LCD screen and touch control. The power of these boilers reaches readings of 30.2 kW. They heat up to 17.1 liters of water per minute.
Gas boilers Immergas
Wall-mounted gas boilers Immergaz are manufactured by an Italian company located in the city of Brescello. This manufacturing company was founded back in 1954. Wall-mounted gas boilers have been manufactured for over 30 years.
A wide range of Immerges gas boilers is presented on the modern market, which includes 78 models, among them there are single-circuit and double-circuit boilers. In the CIS countries, boiler models such as Zeus, Star KW, Mini and others are sold. These boilers are most of all adapted to domestic conditions of use. These models of boilers have both forced removal of combustion products and natural.
Types of wall-mounted gas boilers Immergas:
- NIKE and EOLO STAR are boilers with one heat exchanger.
- NIKE and EOLO MAIOR - with 2 heat exchangers and 2 electric boards.
- NIKE and EOLO MINI - with 2 heat exchangers and 1 electric board.
- VICTRIX and HERCULES are condensing boilers.
- AVIO and ZEUS MAIOR - with a 60 liter heat exchanger.
- EXTRA - boilers designed for outdoor installation.
- EOLO and ZEUS ECO are ecological boilers.
- NIKE and EOLO SUPERIOR - boilers with microboiler.
Nike Star and Eolo Star gas boilers are boilers with a power of 23.4 kW. They have compact dimensions, which makes them suitable for any interior. With their help, you can not only heat the room, but also heat the water.
Nike Star - boilers equipped with an open combustion chamber. Eolo Star - closed camera. Such a gas boiler Immergaz has a built-in microprocessor, which controls the electronic circuit. The design of the boiler uses a biothermal heat exchanger, which allows you to quickly heat and supply hot water. To simplify the use of the boiler, a minimum pressure switch, an automatic by-pass and a hot water limiter are built into it.
The Nike Mini boiler model has an open chamber, while the Eolo Mini model has a closed chamber. The built-in microprocessor is responsible for controlling the electronic circuit of the boiler.
The Nike and Eolo Maior kW gas mounted boilers are available in 24 kW, 27 kW and 32 kW nominal outputs. In total, nine models of such boilers have been developed and are being produced. This range includes EOLO Maior boilers with a closed system and forced outlet, and NIKE Maior boilers with an open chamber and natural outlet.
The new Immergaz gas boilers of the NIKE and EOLO Maior kW models are mainly distinguished by external data, smooth design forms, good adaptability to any interior, ease of installation and compact dimensions. At the request of the client, a remote control can be connected to the boiler. The Avio and Zeus Maior models are 22-30 kW boilers. They are used for space heating and water heating.
Avio Maior - boilers with an open chamber, and Zeus Maior - with a closed chamber and an additional boiler with a volume of 60 liters.
Features of IMMERAS gas boilers are a modern appearance, compactness, adaptability to domestic conditions of use, a wide range of models, accurate control of heating and water temperatures, high safety.
Choosing the right gas boiler model
Next, we describe how to choose a gas boiler for liquefied gas. Among the presented models of gas boilers, it is not easy to choose the right and suitable boiler. Arriving at the gas boiler store, the unsolvable question arises, which one to choose? By choosing a high-quality boiler, you will save your money and stay warm in any bad weather.
So, what should you pay attention to. First, power. Depending on the area of \u200b\u200bthe room, the power of the gas boiler is selected. In order to make the right choice, it is worth making a thermal calculation. This process is complex, so you should entrust it to a specialist. Secondly, it is worth deciding on the type of boiler. There are floor and wall boilers. Floor models are simple, reliable and do not yet require an electrical connection, which is very convenient. Wall-mounted boilers are more comfortable and economical compared to floor-standing boilers. They provide the premises not only with heating, but also with hot water. If you still decide to purchase a floor gas boiler, but you also need hot water supply, then an alternative solution would be to use a wall-mounted gas water heater.
Forbidden! Boilers operating on liquefied gas must not be installed in basements and semi-basements, in bathrooms and in rooms with an area of less than 12 m3!
Most modern private sector houses are equipped with liquefied gas heating boilers, and summer residents use such gas in cylinders, although they do not quite understand what the concept of liquefied gas means. This is a kind of mixture of gas, consisting of such components: butylene, isobutylene, propylene, propane, isobutane and N-butane.
If you increase the pressure, the gas turns into a liquid, which is easier to store and convenient for transportation. And if you lower the pressure or raise the temperature, then the reverse process will occur: the liquid mixture will turn into a gas.
Not so long ago, for autonomous gas supply systems, including heating devices, the use of methane natural gas was widespread, which was justified only in multi-storey buildings. This, associated with the need for large cash costs, a certain number of technical difficulties, turned out to be unacceptable in the new conditions. Therefore, butane and propane for technical purposes began to be used for the mixture.
Use of liquefied gas
Not only the amount of investments required for the production and processing of this gas has decreased, but, what is remarkable, when using such a mixture, there are very few harmful emissions that pollute the natural environment. Therefore, gas is used not only in enterprises, but also for the manufacture of various household items.
A combination of propane and butane is also used in aerosol preparations, and as a fuel for various heating devices, and for refueling a car.
Liquefied gas is used as a heat source, similar to the main gas supply. The only thing is that you constantly have to buy gas, which is not cheap. But if the house is not connected to the general gas supply system of the population, then you will understand that it is most efficient and economical to use natural gas heating mechanisms. The advantages of this type of boilers, in comparison with electric or diesel ones, include the fact that you can equip the system according to one of the options of your choice: the first option is a flow heat exchanger, the second is a boiler.
What is the difference between a conventional heating mechanism that runs on liquefied gas and one that takes gas from cylinders? Essentially, there is no difference in design. Unless the presence of a nozzle, which is designed for a higher level of pressure, in a boiler that uses gas from a cylinder.
- Some brands of gas heaters, in the presence of additional nozzles and other spare parts, can be reconfigured to operate on liquefied fuel.
- For this, the gas pressure must be adjusted, which costs up to about 3 thousand rubles. Most boiler manufacturers, given the need to change the design of their mechanisms, supply special kits with which they can be reconfigured.
- Pay special attention to the fact that only specialists who can safely and accurately reconfigure your units can take on this job.
- It makes sense to use liquefied gas boilers only if there is a gas tank - a special place where you can store a large amount of gas.
- It is irrational to use gas cylinders for the operation of the heater, which are widespread in everyday life, since fuel is enough for a maximum of two days when working at full capacity, and a stationary medium-power boiler will work even less time.
It may be recommended to residents who do not have the possibility of a nearby connection to the integrated gas supply system to install an oil-fired floor heating device with a burner. To switch to gas heating, you just need to replace the burner.
Main characteristics
A machine connected to a gas cylinder can work productively, despite the low pressure, while the gas in the tank is completely exhausted, and this is the main indicator of such devices. Work at a pressure of 3 mbar can be called appropriate parameters.
- When the efficiency of a fuel-fired boiler is low, it is not cost effective to use bottled gas. This is one of the most important indicators, especially for autonomous installations, although it is also of great importance for a centralized gas system. Modern boilers can have an efficiency of 93-95%.
- To change the operating mode and switch to gas, it is necessary to install special nozzles on the heating device with a smaller diameter instead of constant ones. They can be bought in the distribution network, and some boiler suppliers complete the product with such spare parts.
- If we calculate how much gas is necessary in practice for the normal operation of the boiler, then approximately nine cylinders per month during the heating season are needed to heat a room with an area of about one hundred square meters, with a consumption of up to two cylinders per week.
- Since refueling a cylinder costs five hundred rubles, monthly gas costs will amount to four and a half thousand rubles. This is provided that the delivery of containers will occur independently. Of course, in the end it turns out quite expensive, but among all the options it is still the cheapest.
- It will be much more expensive to use an electric device, since with a very low efficiency of electricity, a lot is consumed, and this will be economically unprofitable. In the conditions of a holiday village, power outages often occur, which entails freezing of the heating system. Due to the constant need to purchase firewood and coal, such heating will also be very expensive.
There is still the possibility of savings when installing a boiler that runs on liquid diesel fuel. But even here there are many shortcomings. He needs special maintenance, because there are many breakdowns. There will be a need to install a powerful hood - after all, such an apparatus will smoke all the time. In addition, you will need to buy a sufficiently large tank to store fuel, put a filter for cleaning and a device for dehumidification. Ultimately, given the fact that the fuel itself is not cheap, this option also loses to the use of gas in terms of economy.
On the disadvantages of using bottled gas
You understand that there are a sufficient number of shortcomings in boilers that run on gas.
- Most often, containers are replenished at gas stations, where there is a possibility that the gas will be diluted. Of course, the boiler will be unstable and inefficient to work on such a mixture.
- Since the heating of a private house with an area of 100 sq.m. you need about 2 bottles a week, you will have to fill up the tanks with gas every 7-10 days - after all, it is difficult to organize a free room for storing spare power supplies. And you will have to constantly take care of the availability of natural gas for heating.
- It is necessary to apply a certain force in case of changing the cylinder, as this must be done manually.
- It is necessary to take care of fire safety, because gas is an explosive substance.
- To use the gas cylinder to the end, good ventilation of the room is necessary.
- In addition, gas prices are constantly increasing.
With a high probability, it is impossible to say that using bottled gas is the best way out, provided that you do not have a system connection. This option has both good and bad sides. But if in the future you have the possibility of connecting to an integrated gas supply system, then the transition from gas cylinders to a gas network will be cheap and simple, and therefore you should take a closer look at this type of heating.