Heating with Wood Pellets

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Wood Pellet Heating-Systems

Since nearly a decade, there is a boom going on in burning pellets made from pressed wooden filings. Especially in Germany pellet-heating brought back the very first burning material wood, after it had been less attractive for the last decades, except as chopped firewood for the fireside. In Sweden and in Austria wood pellet heating systems are already one of the popular renewable sources for heat-energy.

Although the price for wood pellets went up with increased demands, the compressed wooden pills costs - compared to their fuel value - about the same as it would cost with fossil oil. And demands are still rising.
Wood-pellet heaters can cover the energy supply for small family houses as well as big office buildings. Heating with wood pellets is quite economic.

Wood-Pellet Heating-Systems

The wooden pellets come by tank wagon, similar to an oil delivery, and are pumped into a storage, mostly located in the cellar, from where the pellets roll automatically into the heater as soon as there is any need. The owner simply sets timer and heat thermostat for desired temperatures and all the rest will operate by itself.

Useful materials to produce compressed wood pellets can be used natural wood and bard from new and old wood. The dryer the main material is, the smaller will be the amount of energy you have to invest to generate pellets. Besides fresh wood from plantings, mostly wooden leftovers, wood filings and sawdust from sawing companies and from furniture manufactures are used for the pellet production. After all wood has been cut into smallest pieces, huge pressure and hot water steam compresses the whole mix without using any glue materials. The whole pulp gets pressed though stencils and cut in norm-size pieces. After cooling off the pellets, 100% made of wood, are ready for transport. To assure safety, hazard and efficiency of the pellet-heating system should be transported and stored very expertly and extremely dry.

How to install a Wood Pellet Heating-System

You should install your wood-pellet heating system right next to the pellets storeroom. It is a big advantage, if the storeroom has one side next towards the street to guarantee the delivering tank wagon can access the storage and pump the pellets directly. For reasons of safety and hazard there are no electrical installations allowed in the pellet storage area.

The storage's floor should be slippery with a angle of inclination of about 45° degrees towards the pellet-heater side. This is essential to guarantee the heating system operating trouble-free. A storage area narrow, long-shaped and parallel to the angle of inclination provides best refilling conditions. If you've just exchanged your oil-heater with a pellet system, you can use the former oil-tank room after removing the tank and preparing the above mentioned adjustments. Under dry and perfect conditions you can store wood-pellets several years.

A pellet-heater refills automatically and burns the pellets nearly without any leftovers or lots of ash. To clean out ashes about twice a year might be enough under normal heating capacities. The fact that pellets are 100% made of wood, lets them release only that amount of carbon that the wood had absorbed during growing. So far, no additional carbon emissions reach the atmosphere and pellet-heaters give only back to the biological cycle what had been absorbed before.

But the huge increase in demands for this comfortable, renewable-energy source has already started to change firewood markets. Forests will be cleaned and fast growing plantings with poplars, willows and pine trees have to be planted to satisfy the growing demands of the new firewood market. When big power plants will follow burning wood and wooden products, it is high time to think about a more eco-friendly methods and energy sources.

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Heating with Wood Pellets