In our age of scarcity of energy resources, the question of their economy is particularly acute. For example, today it will not be possible to burn thousands of cubic meters of gas without thoughtlessly to heat the house, without being ruined at the same time. Therefore, the special popularity of long-burning furnaces with a water circuit.
Long-life stoves
In principle, long-life burning furnaces with a water circuit have few differences with solid-fuel boilers - both in the first and in the second use the same pyrolysis principle, that is, not only fuel burns, but also gases that are released. Structurally, this furnace represents two chambers united in one body, one of which slowly burns out fuel and the other gases. Fuel for it can serve as firewood, sawdust, coal, peat, pellets. These furnaces are made of sheet steel and cast iron, that is, materials whose characteristics allow them to withstand the pressure of water vapor. The heat exchanger in them is usually built into the interior of the furnace or chimney, which allows achieving the maximum efficiency. Circulation of the coolant in such systems is due to natural processes, which makes them autonomous from power supplies. But for faster heating and reducing fuel consumption, it is recommended to install a circulation pump. Among all long-burning furnaces, gas-fired furnaces with a water circuit are particularly distinguished, characterized by high efficiency and small dimensions. Their drawbacks include the need to equip a special chimney and high requirements for fuel quality.
Manufacturers of long-burning furnaces
For those who wish to receive a truly reliable long-burning furnace with a water circuit and are willing to spend an appropriate amount on this, it is worth paying attention to the products of European manufacturing companies: AVX, Schmid, EdilKamin, La-Nordica. A little will yield to them in parameters, but domestic furnaces of firms "Vulkan", "Termofor", "Ermak" will less blow on a pocket.