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For many years there was very little alternative in available biomass boilers. The heating market for the last 50 years has been dominated with oil, gas as well as electric boilers. These fossil duel derived energy solutions provide minimum convenience, in addition to for many years the price of oil and gas has made it impossible for wood boilers to compete. However at the start of the 21st century it became very noticeable that the charge of fossil fuel was mounting. This rise in cost continues, and will continue to rise for more than a few reasons. Firstly the resource of oil plus gas is controlled by way of only a handful of nations, as well as many of these nations have an uneasy relations with many western countries. Conflict in some of the oil nations further adds to supply problems in addition to price instability. The rapid growth of Chin as well as India in the global economic market also adds to the demand for fuel, putting further strain on the limited resources. Finally, as you will clearly know, fossil energy energy is regarded as one of the key contributors to global warming. Therefore more future taxes will be placed on the use of fossil fuels. These factors are making it possible for wood boilers as well as particularly lower maintenance wood pellet boilers to compete by means of fossil fuel heating solutions. Wood boilers are increasing in popularity.

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Biomass pellet boilers are predominately focused on incineration biomass pellets. This is to be expected as wood residues from timber processing have been abundant along with cheap, in some cases the pellet manufactures have been paid to take the sawdust away. Wood pellets also necessitate the least amount of maintenance. The issue is the pellet market cannot meet future demand on these same wood resources, and the timber processors now see the value of their waste in addition to are charging for it. To meet future demand and keep pellet fuels affordable, more biomass resources have to be utilized. For example, straw can also be used for fuel pellets. Suitable grasses include switchgrass as well as reed canary straw. These resources grow extremely rapid, as well as can produce large volumes of fuel by very little land space. These materials can then be turned into energy pellets for biomass boilers.

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The most common form of pellet fuel is the premium wood pellet. Premium biomass pellets are formed from selective softwood plus hardwood resources. These resources must not only free from any paint or resins, but also must not contain bark, as bark can amplify the ash content of the energy. The ash content of premium biomass pellets is generally around 0.5%, much lower than any other type of wood fuel pellet. Yet, these resources are in more demand, in addition to there is only a limited reserve leading to premium pellets being the most expensive fuel pellets there are. Other lower grade biomass pellets can be used in some pellet stoves as well as boilers, though some will struggle with the higher ash content. This is why the alternative of pellet burner is very important for energy flexibility.

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