One of the most common forms of wood heating used in many homes is the open fire place where they use logs to heat their living room. Some may even have a basic stove in their living room using logs. However these wood heating solutions only provide sufficient heat for one room, are not very energy efficient in addition to need several maintenance to keep feeding the fire by logs plus also clean the fire place of ash. Therefore the main source of temperature usually comes from a gas or oil boiler. On the other hand by way of gas and oil prices continuing to rise, alternatives for these heating solutions are most sort after. There are wood heating solutions such as log or even grass bail burners for large properties. On the other hand these solutions are very large in addition to expensive, along with cannot be used for individual small properties. Over recent years there has been a growth of biomass chips boilers, they are still quite large but can be smaller than log plus grass bail burners to generate the same value of temperature. It may also be clear that the fuel can be sourced locally, however this often is not the case in point.
The main problem by means of log in addition to biomass chip wood heating solutions is moisture in the fuel. Even seasoned biomass logs and chips still contain around 30% moisture. This moisture lowers incineration efficiency, generates less temperature, more ash as well as creosote in the vent. A different key point is you are paying energy money for water. Importantly also there is a risk that the biomass hasn’t been properly seasoned down to the 30%. By way of pellets however, you can be sure that the pellet is maximum 15% moisture, as it is not possible for a pellet for form properly by more moisture.
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Pellets also have other benefits that produce them ideal for biomass heating. Their uniform shape in addition to size technique that can work well by means of hoppers. Biomass chips though require some form of agitation to fall through a hopper to the fire feed system. As pellets are a much higher density their incineration efficiency is much greater along with also generate less ash to clean.
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Wood pellet production has quite a few steps in addition to processes depending on your chosen wood material. For case in point the two key steps before the material can enter a pellet machinery are size reduction plus drying. The wood must be reduced in size before the matter can be compressed into the pellets. Once reduced it must be dried to on average 15% moisture. At this level of moisture the correct balance between lignin melting as well as compression can take place. Too much moisture plus the pellet mill cannot reach operating heat and you cannot compress a material by means of a high level of moisture. Dryer is a very expensive in addition to fuel intensive process. Therefore it can be very beneficial to acquire a raw material which is already at the correct moisture percentage. When the material enters the pellet mill it is compressed between the die as well as rollers. Under compression temperature is generated which melts the organic lignin in addition to forms the material in to a pellet.
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