Versatile Wood Boiler Systems
Matured Wood Gasification Systems Logs up to 120 cm Waste Wood Whole Pallet For Small Straw & Miscanthus Bales. A German made rugged and indestructible boiler Fool proofed operation robust and easy to use control Good natured combustion behavior even with wet wood Rangingfrom15kW-180kW&130-450kW
Why heat with wood?
Why heat with wood?
Because it's economical:
Forests across Europe are capable of producing far more wood than can be used at this time. That means we can rely on the price of firewood remaining stable for the foreseeable future. You'll find trees growing close to home, and logs are easy to transport and easy to store. Wood is a great fuel and a wood fire produces a cosy, homely atmosphere.
Because it's environmentally friendly:
During the growth period, trees store solar energy for us to release when we burn logs in winter. All this energy comes to us free from the sun year after year.?Burning wood in central heating systems releases just as much carbon dioxide to the atmosphere as would be generated if the wood were left to rot on the forest floor - no less and no more.
Renewable forest agriculture ensures that this greenhouse gas is reabsorbed into the growth cycle.?Clean-burn wood combustion, therefore, is environmentally neutral and does not contribute to the greenhouse effect. The introduction of a CO 2 tax on firewood is unlikely in the extreme. Woodburners have to be state of the art, however, in order to ensure the clean-burn conditions to produce flue gases consisting almost entirely of water vapour and carbon dioxide - precisely what we exhale ourselves.
Because it's easy:
You lay the wood in the gasifier/feed chamber(1); this is where the wood gas is generated.?This chamber is narrow at the top, widening further down. This is the ideal geometry to keep the flames from burning up into the centre of the wood stacked above the fire. The primary air supply(2)is from both sides, and this helps ensure that the stack burns away close to the bottom along left and right, so the wood in the stack will keep feeding gradually down into the fire.
Because it's clean:
The ceramic liner(3)significantly increases the?temperatures at the inner wall. That means the entire?chamber is hotter, so the wood gases more?effectively. The firewood, therefore, can have a higher moisture content than usual and doesn't have to be split. The temperature at the inner walls of the feed chamber is too hot for tar deposits or the acids that can damage the boiler to form. The wood gases are drawn through the slotted orifice(4)and into the ceramic swirl combustion chamber(5), where the intensive swirl mixes it thoroughly with the super-preheated secondary air introduced from the rear, and combustion takes place. The subsequent path of the fuel gases through the superheated afterburn chamber(6)underneath the swirl chamber is long in order to allow adequate reaction time for the combustion process.
The hopper and gasification chamber is completely lined with a special ceramic plaster achieving high temperatures. High temperatures increase the gasification process and avoid precipitation of coal tar and aggressive acids.
Due to this Herlt boilers may use wet timber withahigher contentwaterthanthe normally recommended 20%.
Despite of this good behavior of all Herlt boilers you should know that wet timber eats your money!
E.g. a boiler wastes 0.68 kWh to evaporate 1 kg of timber bounded water.
It provides 4 kWh of energy burning 1 kg of wood (conifers or hard wood) with a water content of 20 %. However, the same boiler provides 2 kWh only if burning freshly cut wood with a water content of 50 %.
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