It is worth noting the following advantages:
Prices for long-burning solid fuel pyrolysis boilers primarily depend on the policy of manufacturers, as well as the situation on the foreign exchange market.
When using gas-fired boilers for wood, solid fuel must meet certain requirements. First of all, we are talking about the presence of a large amount of light substances in the composition and the absence of high humidity (no more than 30%). For boilers with a similar mechanism of operation, the following fuel options are suitable:
In other words, this heating equipment is capable of using a large number of different types of fuel, which makes such a purchase quite versatile, since you can easily use such equipment in any region of the country.
The price of a long-burning solid fuel pyrolysis boiler also primarily depends on the rated power of a particular model. The choice of a suitable option depends on the quadrature of the heated room, as well as the characteristics of the climate, the thermal insulation of the room.
You can also buy a pyrolysis boiler in St. Petersburg at the company's representative offices, the contact details of which you can easily find on the website.
Using a long-burning pyrolysis boiler with a water circuit for heating, you can also provide your home with hot water.
Pyrolysis boilers in our online store are represented by both domestic samples and imported models. The final choice depends entirely on your individual preferences.
The price of a wood-fired pyrolysis boiler in the Tekhnodom online store is distinguished by its objectivity, the absence of unreasonable trade margins. You will find all the necessary information about a particular model in our catalog, which contains detailed descriptions, specifications and photographs.
In our catalog you can buy a solid fuel gas-fired boiler in 1 click. If you still have specific questions regarding the features of using the models of heating equipment you are interested in, call the indicated numbers and you will receive comprehensive answers to your questions.
Gas-generating boilers are one of the types of solid fuel, usually water-heating devices. The essence of his work is that the fuel and volatile substances in it burn out separately. In other words, solid fuel pyrolysis occurs, which is why boilers are also called pyrolysis boilers. Especially this heating equipment is effective when working on firewood, wood briquettes, borax and some coal fractions.
Use gas boilers to heat your home
The design of the gas generating boiler is a furnace with two chambers, which are separated by cast-iron grates. The first chamber is designed for pyrolysis of firewood, and the second - for burning the emitted gas. In some designs, the gas chambers are connected to cooking stoves. The main parts of such a device are:
In this video, we will consider the principle of operation of gas-generating boilers:
In addition, to ensure the safe operation of boiler equipment, the design contains: safety valves, pressure sensors, air supply regulators. General control and adjustment of the operational process is carried out using an electronic control unit. Some models of boilers have a remote control.
During the combustion of any solid fuel, carbon monoxide is released. From the experience of using gas generators, it has been proved that the release of this gas in especially large quantities occurs during the combustion of wood.
Hence the conclusion that it is best to heat this unit with firewood. In modern boilers, their ignition and further combustion process is fully automated. At the same time, certain requirements are imposed on such fuel.
The moisture content of the wood used should not exceed 20%, otherwise it will have to be dried beforehand. At the same time, it is worth choosing only the most solid types of wood: beech, oak, acacia. You can not use coal in those models where this option is not provided, since the unit may fail.
During combustion, solid fuel begins to release gas, which continues to support this process. Wood-fired gas-fired boilers are designed in such a way that they cannot burn quickly as in conventional stoves. This happens because carbon monoxide burns in a separate chamber. Thus, the whole process is divided into several stages:
As a result, the fuel is separated into two components: a solid fraction and a gaseous substance. The removal of these parts from the boiler takes place separately, and when the gas and carbon come into contact during combustion, the smoke is purified from harmful substances.
Currently, gas-fired boilers for wood and other solid fuels are widely represented on the market for space heating equipment. They differ from each other both constructively and in cost. Among them it is worth noting the following models:
The following models are also considered popular and inexpensive: Divo-10, Bourgeois-K STANDARD-20, Wattek PYROTEK 36, etc.
The main advantage of such units is the high efficiency of solid fuel combustion. Compared to simple wood-burning stoves, when using a gas generator, the efficiency is usually much higher.
Most of these installations are non-volatile devices and can be installed at facilities that are not supplied with electricity. Such units were previously successfully installed on cars. In addition, boilers that do not need electricity are much cheaper.
To operate this device, you can use any type of wood, even waste from its production. Another significant advantage of such heating is that the boiler is able to work for a long time from one portion of solid fuel.
This feature makes it easier to operate these units. But still, these devices have a number of disadvantages, based mainly on the mandatory presence of a person during their maintenance.
This is especially important when choosing such devices in comparison with gas units. Besides, the gas generator needs to be serviced periodically, clean from soot and soot, since decay products exist in them.
Despite the high cost, after the purchase, a gas-fired solid fuel boiler helps to save on heating by reducing fuel consumption by 15-20%. An additional advantage is the long operating time of the gas generator from one tab.
Automatic boilers on, operate in a completely autonomous mode. The whole process, from air supply to combustion waste removal, is controlled by automation.
Household gas-generating solid fuel heating boilers of domestic production are less whimsical to the quality of the wood used. In models with vertical loading and, it is allowed to use firewood with a moisture content of 30 to 42%.
In addition to the European factories that have already proven themselves, domestic companies have established the production of gas-generating boilers. To facilitate the choice, all models can be divided into several groups on a territorial basis:
Domestic boilers can be found starting from 30 thousand rubles. For a high-quality gas generator, similar to European models, you will have to pay about 80 thousand rubles. (Prices are approximate based on 30 kW output).
Gas-generating boilers have no analogues among other models, regarding the duration of work from one bookmark, heat performance characteristics and other operating parameters. Somewhat limit the popularity of models - the high cost and features of operation.
Classic solid fuel boilers have two significant drawbacks: short operating time from one tab and low efficiency. To solve this problem, certain changes were made in the design and internal structure of the boilers.
As a result of improvements, gas-generating boilers for wood appeared. The principle of operation of a boiler with gas-fired combustion of firewood is based on the use of physical laws.
In wood fired gas boilers, rapid combustion of the fuel is prevented by reducing the oxygen supply and removing CO to a separate afterburner.
Combustion, in the full sense of the word, is carried out only at the very beginning, when the fuel is ignited and the temperature necessary for gas generation is injected in the combustion chamber. After that, the air flow is sharply reduced, which causes the fuel to literally smolder.
Compared with a traditional boiler, a gas-fired wood-fired boiler has the following differences:
The moisture content of firewood for burning in a gas-generating boiler should not exceed 20%. The problem is that when fuel with a high moisture ratio is heated, a drying process occurs. Accordingly, gas generation does not start.
Some domestic models, in this regard, use the design of the boiler with a vertical laying of firewood and the principle of lower combustion. Such a boiler works on wood even with high humidity. Due to the high combustion temperature, the firewood located at the top of the chamber gradually dries out.
Depending on the design of the boiler, firewood burns for 6-12 hours. Some manufacturers offer heat generators with the ability to work from one tab for several days. But, as a rule, such models are much more expensive, which limits their popularity.
The greatest difficulty for most consumers is the correct combustion of the boiler. Unit manufacturers recommend the following sequence of actions:
Wood requirements are as follows:
Heating costs are reduced by burning quality wood. During the combustion process, more thermal energy is released, which increases the efficiency, energy efficiency and battery life of the boiler from one tab. Firewood consumption is reduced by approximately 30%.
The parameters of the moisture ratio in the wood are completely dependent on the design of the heat generator:
The energy efficiency of the boiler depends on the quality of the fuel. With natural drying, 20% humidity is achieved after a year of drying firewood.
It will not be superfluous to pay attention to the presence in the design of a backup heat source, in the form of an electric heater.
Two-circuit units are suitable for heating and hot water. In some models, there is no DHW circuit. Then, they are additionally purchased and connected to the indirect heating structure, which requires additional costs. All this is taken into account even before purchasing the boiler model you like.
Calculations are made according to the formula 1 kW = 10 m². This ratio takes into account the parameters of a building with an average amount of heat loss and a ceiling height of no more than 2.7 m. Additionally, the following aspects are taken into account:Domestic boilers Bastion, ZOTA, Topol M are significantly inferior in terms of their thermal performance and service life to Western counterparts.
The cost of a German-made gas-fired wood-burning heating boiler, per 20 kW, will cost approximately 100-120 thousand rubles. Domestic analogue of approximately 40 thousand rubles.
In the design of European units, new technologies are widely used that increase the comfort of operation, make kindling and combustion control as convenient as possible.
The disadvantages are the high cost of products (especially German and Czech boilers), as well as high requirements for fuel quality. The operating experience of a domestic consumer shows that the use of gas-generating equipment in the conditions of Russian realities is not only a possible, but also an economically viable solution.
Solid fuel boilers are a very relevant topic today, especially in areas far from electricity and gas pipelines. The variety of boilers differs only from the fuel used and the combustion technology. Solid fuel gas-fired boilers are those boilers that use a rather innovative principle of solid fuel combustion - pyrolysis. How does such a device differ from similar ones that work on the principle of combustion of wood, coal and other types of solid fuels?
Rice. oneThe solid fuel gas-generating boiler differs from the rest in the principle of combustion. Most likely, this cannot even be called combustion - it is pyrolysis or smoldering.
By design, the boiler has two combustion chambers:
It turns out that in a solid fuel gas generator boiler, two types of fuel are used in parallel at once. Actually, solid fuel, which smolders, releases heat and combustible gas released during the pyrolysis process. This type of solid fuel gas generating boilers combines gas and solid fuel boilers.
For the correct operation of a solid fuel gas-generating boiler, fuel is required that meets certain characteristics. It is necessary that it contain a large amount of light substances, not be too wet (no more than 20-30%), and water vapor should not interfere with smoldering.
The fuels listed below are suitable for pyrolysis boilers:
As you can see, the variety of solid fuels for solid fuel gas-generating boilers is large. This makes their use widely available in many areas of residence.
In addition to the variety of applications for different types of fuel, the geography of the use of gas-fired solid fuel boilers is also wide.
Among other advantages:
Taking into account the listed significant advantages, we can say that the purchase of solid fuel gas-generating boilers is a good purchase. But there is no technology completely without some shortcomings, and a solid fuel gas-generating boiler is not without them.
However, some disadvantages of boilers operating on the principle of pyrolysis are also inherent in some boilers that use coal, gas or wood as fuel. The ratio of advantages - disadvantages speaks in favor of solid fuel gas-generating boilers.
The gas generating pyrolysis boiler has two combustion chambers. The first serves as a gas generator, where smoldering wood or coal emits combustible CO gas. In the second, gas is burned. It uses energy from both cameras. Since gas combustion is easier to control, automatic dampers are used to regulate the flow of gas after pyrolysis and oxygen from the air. This makes it possible to regulate the temperature of combustion and the return of energy to the coolant over a wide range.
Rice. 2When modernizing modern solid fuel gas-generating boilers, all the errors of early similar devices were taken into account. There are models that work completely independently. For example, the removal of harmful substances remaining after pyrolysis can occur without electricity. A safety water circuit has been created to prevent overheating of the boiler. Thanks to modernizations, the efficiency of the pyrolysis boiler is high. It is enough to load the first chamber with solid fuel once a day.
Special requirements for the installation of a solid fuel gas-generating boiler:
By entrusting the installation of the boiler to specialists, you will be sure of the correct and efficient operation of the equipment for many years to come. Do not risk and neglect the safety of your home.
When developing solid fuel gas-generating boilers, first of all, attention was paid to the volume of combustion chambers and the amount of solid fuel consumed. But because of this, they achieved a slight increase in the efficiency with increasing overall dimensions and weight of the boilers. No one took into account that during pyrolysis a gas is released that was not effectively used in the chambers of previous models of boilers for wood or coal.
As a result of lengthy experiments, it became clear that it was necessary to use the properties of organic substances, which, with a lack of oxygen, emit combustible gas - pyrolysis. The use of solid fuel not for the main heat release, but for the production of CO made it possible to make a boiler that combines the combustion of solid fuel and gas. The solid fuel gas generating boiler increased the effect of heating, combined savings and low cost of fuel, using the pyrolysis process.
By purchasing a solid fuel gas generating boiler, you get a highly economical heater capable of regulating the temperature of the heat carrier (heating water) over a wide range. Economy is essential. It is enough to load firewood or coal once a day. This frees you from the obligation to monitor the fuel level around the clock.
The use of automation will save you from manual control of the dampers. If gas supply will cost you too much or it is not available at all, then this is the best way to provide heating for a private house using cheap coal or firewood.
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