Solid fuel pyrolysis boilers for long burning can work on wood, briquettes, as well as sawdust. Many models are very different in appearance, but they have the same internal structure.
Pyrolysis boiler device
In the center of the boiler there is a special heat exchanger, which is responsible for the temperature. There is also a direct loading chamber for stacking fuel. At the top of the boiler is an electronic control unit. Under the loading chamber is a compartment for burning fuel. It is connected to the primary air channel, which is made of heat resistant steel. On the sides of the combustion chamber there is a lining of mullite-corundum concrete. The scheme of a pyrolysis boiler for long burning is shown below.
How does a pyrolysis boiler work?
For the pyrolysis boiler to work, it is first necessary to place fuel through the loading chamber on a special grate. Some call it the grate. Through this lattice, a stream of air will subsequently pass. Further, the fuel is ignited, and oxygen access is limited. As a result of this, the combustion process is very weak and pyrolysis gas is released. Then it enters the afterburner, where there is a lot of air. As a result of their interaction, heat is generated. The best long-burning pyrolysis boilers are able to hold it for 8 hours.
Homemade pyrolysis boilers
It is very difficult to make a self-made pyrolysis boiler for long burning on your own. However, there are many examples of how to build its classic version. To do this, you need large metal circles, electrodes for welding, steel sheets and a profile pipe. Additionally, special fireclay bricks and a fan are used. Of the tools you will naturally need a welding machine. A drill is used to connect steel sheets. To clean all the edges of the boiler, a grinder is indispensable.
Classic pyrolysis boilers using the technology of Vadim Belyaev are in great demand. In this case, you can save a significant amount of money. However, it is important to understand that a home-made pyrolysis boiler of long burning can ultimately pose a great threat to human health.
Responses of owners of a boiler "Trayan T-10"
Responses of owners of pyrolysis coppers of long burning "Trayan T-10" are quite good. Most consumers consider this model to be universal. It keeps heat perfectly for a long time. If you completely fill the loading chamber with firewood, then this is enough for 7 hours. You can also optionally use coal and briquettes. According to the owners, these pyrolysis boilers of long burning can heat an area of up to 90 sq.m. At the same time, a water heating system should be installed in the house. It can be with both natural and forced circulation. The shells of these pyrolysis boilers are very durable, because they are made of heat-resistant steel. Moreover, the thickness of the metal in different places is different. In addition, the owners noted the compact size of this pyrolysis boiler, given its power of 10 kW.
Assessment of experts and characteristics of the boiler "Trayan T-10"
These pyrolysis boilers for long burning expert reviews deserve good. Many experts argue that the power of this device is quite enough for heating a house with an area of not more than 100 square meters. At the same time, the height of the ceilings should be no more than 3 m. The dimensions of this model are quite acceptable. The width of the pyrolysis boiler is 380 mm, the length is 670 mm, and the height is 860 mm. Furthermore, the total weight of the device is 180 kg. According to experts, the volume of the heating system is very large. Its maximum indicator reaches 0.25 cubic meters. Moreover, the coefficient of performance is 82%. You should also know that the maximum operating temperature is 90 degrees. In turn, the volume of water in the boiler is at around 18 liters. Also, experts noted convenient connectors at the system output. The diameter of the pipe in this place is 1.2 cm. The pressure inside the boiler is maintained in normal condition.
There should be no problems with connecting the chimney. The diameter of the connector in this place is 130 mm, which is quite convenient for installation. On average, the chimney should have a size of at least 7 m. It should be borne in mind that the flue gases will reach a temperature of 130 degrees. In this case, the maximum performance is 150 degrees. The loading chamber of this pyrolysis boiler is quite large. It allows you to put firewood there in a size of not more than 450 mm. At the same time, the size of the furnace door leaves 220 by 200 mm. The volume of the furnace, in turn, is equal to 0.055 cubic meters. The cost of the boiler is 44,000 rubles. quite justified.
Reviews about the boiler "Trayan T-15"
Feedback from owners of long-burning pyrolysis boilers "Traian T-15" suggests that many people like them thanks to the installed draft regulator. In this case, everything happens in automatic mode, and the temperature is maintained in the house at a stable level. The power of this pyrolysis boiler is large and amounts to 15 kW. According to customers, this is enough to heat a house of 130 sq.m. One bookmark of firewood is able to provide heat for 8 hours. All this will significantly save fuel costs.
In addition, owners note the convenience of servicing such boilers. To do this, just open the door of the loading chamber and get the ash. This should be done only once every two weeks. Directly, the firebox is large and convenient to use. At a time, you can put more than 6 kg of firewood. The camera door opens well and closes tightly. When installing this pyrolysis boiler, there are also no problems. However, its size is very impressive. The cost of this model is 50,000 rubles.
Reviews of experts on the boiler "Trayan T-15"
Experts believe that the size of these long-burning pyrolysis boilers "Trayan" are quite large. Their width is 480 mm, their length is 760 mm, and their height is 910 mm. Moreover, the weight of this model is as much as 230 kg. All this brings certain problems in the installation of the chimney.
According to experts, the volume of the furnace is impressive. All this makes it possible to use coal bookmarks with great efficiency. In this case, the pyrolysis boiler will be able to keep the heat for 8 hours. In turn, the wooden tab will burn faster. The height of the chimney when installing the boiler must be at least 7 m. In this case, the diameter for its connection, which is only 135 mm, must be taken into account. And the diameter of the cooling circuit is 12 cm. In general, the efficiency of these solid fuel pyrolysis boilers of long burning "Troyan" have 85%. According to experts, all this was reflected in the volume of the heating system. This indicator for this model is at around 0.37 cubic meters.
Boiler "PROTHERM PLUS 3"
Reviews of owners of long-burning pyrolysis boilers "PROTHERM PLUS 3" are good and many customers praise them for their design. Moreover, their size is average, and the efficiency is as much as 70%. According to customers, this boiler works fine on coal, fuel, and briquettes. Additionally, you can use chips and keep the house temperature at a good level.
The control panel of this boiler is very convenient. The temperature of the coolant can be adjusted at any time. Additionally, it can be paired with other boilers and save money. Many owners liked the convenient and intuitive thermometer on the top panel. The power controller, in turn, works without delay. The boiler body itself is not subject to corrosion. The chimney draft damper is very quiet. Plus, it prevents gas from entering the house. This does not happen even when firewood is thrown into the loading chamber. The cost of this model is 55,000 rubles.
Expert opinion on the boiler "PROTHERM PLUS 3"
All experts agree that this boiler is quite powerful, but has its drawbacks. When loading coal, the thermal power is 17 kW. At this time, if you use firewood, then this indicator will be at the level of 13 kW. Ultimately, this was reflected in the temperature control range. The maximum can be set only 90 degrees. With such power, it is quite small.
In addition, experts noted a low pressure in the lower chamber, which equals 3 bar. In this case, the output for the connector has a diameter of 12 mm. It should also be noted that the height of the loading compartment is at the level of 28 cm. All this can create certain difficulties in the operation of the pyrolysis boiler. The combustion chamber, in turn, has a volume of 32,000 cubic meters. see, and only 22 liters of water are placed in the boiler.
It should be borne in mind that the dimensions of this model are far from compact. Its height is 107 cm, width - 52 cm, and depth - 36.5 cm. In this case, the total weight is at around 190 kg. This boiler is made in absolutely any color. Additionally, it is possible to note the reliability of the inner sections, which are made of cast iron. The average metal thickness is 4 mm. Among the shortcomings, experts note the lack of the ability to install a simple accumulator. At the same time, the built-in automation leaves much to be desired.
New model "PROTHERM 20 DLO"
Reviews of owners of long-burning pyrolysis boilers "PROTHERM 20 DLO" are very different. Some consider this model to be quite universal. At the same time, its power of 20 kW is enough to heat a room of 150 sq.m. It should also be borne in mind that a convenient thermomanometer is installed here, which is located on the front panel.
As the owners note, traction control is very simple. In this case, the chimney flap works smoothly. The power controller also successfully copes with its tasks. Additionally, it is possible to note the ability to quickly select the temperature of the water inside the boiler. For convenience, a power regulator was installed away from the combustion chamber. In this case, hot air will never fall on hand. All this creates the comfort of operation of the device. The damper itself is easily adjustable. The boiler body has a smooth shape and looks great. Its surface is completely protected from corrosion and thermal shock. All this was achieved with the help of uniform distribution of heat in the inner sections.
Disadvantages of boilers "PROTHERM 20 DLO"
Of the shortcomings, the owners distinguish a large firebox. At the same time, it is sometimes very difficult to clean it. Ashes are usually clogged to the back wall and it is not easy to get it. Additionally, you need to monitor the moisture content of firewood. If this indicator exceeds 20%, then it will be impossible to use such fuel. Installation of the boiler, in turn, requires special training. All this is connected mainly with the connection of the chimney. In general, these pyrolysis double-circuit boilers of long burning "PROTHERM 20 DLO" are quite practical and economical.