With the approach of winter cold we are increasingly thinking about providing heat and coziness in the house. Someone in the first place will worry about the insulation of housing , and someone - about the heating system. Recently, among consumers, there has been a noticeable increase in demand for solid fuel boilers. These are, as a rule, pellet, wood and universal models that work on the appropriate types of fuel.
In turn, boilers on firewood are of different types - let's look at each of them in more detail.
Fuel boilers for wood for home
Boilers where wood is used as fuel can also differ. Depending on the principle of fuel combustion, there are three types:
- pyrolysis boilers;
- boilers of a glowing type;
- boilers of classical combustion.
One of the most common types of wood burning boilers today is pyrolysis. It is a very powerful unit with a complex organization system, whose work is based on the principle of gasified wood combustion. In practice, this means that the pyrolysis boiler first releases the so-called wood gas from the loaded wood, and then burns it in a separate ceramic furnace. This significantly increases both the burning time and the efficiency of the boiler itself (up to 90%).
Pyrolysis boiler heating on wood refers to long-burning stoves, because it allows you to load fuel once every 12-24 hours, and it is very convenient in everyday life. But this unit has its obvious disadvantages:
- high price;
- large weight and dimensions;
- small volume of the loading chamber for firewood, which have to be chopped into small logs;
- the need to use very dry firewood (their humidity should not exceed 20%, which corresponds to two years of preliminary storage).
The most popular models of pyrolysis boilers on firewood are the Czech "ATMOS" and "VERNER".
Boilers of the so-called smoldering type can use not only firewood, but also coal, and they work on the same load for up to 30 hours in a row. However, they are not so powerful and, like pyrolyzers, they do not allow loading logs at any time. The principle of operation of this type of boiler is as follows: a "shirt" is built throughout the height of the structure, and inside the chamber the fuel, after it burns, slowly smolderes like a candle, from the top down.
The Baltic trademarks "Candle" and "Stropuva" are very common in this variety of solid fuel boilers.
And, at last, the simplest boiler on wood is a boiler of classical burning. Such models are characterized by ease of maintenance and attractive price. Combustion occurs natural, and therefore - in an uncontrolled way, because of which the firewood burns out quickly enough. This can be prevented by a special air damper connected to a water temperature sensor in the boiler, or a heat accumulator tank (in more progressive models). Of the minuses of classic boilers, we note the relatively rapid combustion of fuel. The most purchased models include such as Galmet, SAS, Sime, ATON, Wichlaczh, Biasi.
According to the material of manufacture, the hot-water boiler can be cast iron and steel.
Cast iron boilers are durable, resistant to corrosion, and also have
In turn, steel boilers have less weight, they are shockproof and more convenient to maintain and repair. However, they are susceptible to corrosion and limited in capacity building.
As for fuel, all wood-fired boilers can work on wood briquettes and waste.