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Wood Pellets: Advantages, Uses, and Why They Are Ideal for Your Home

What are pellets?

Pellets or pellet fuel belong to the category of solid fuels and are classified as natural heating sources, making them an eco-friendly fuel. Pellets are the result of a technologically demanding process that involves drying sawdust (from wood or plant residues) and then compressing it under high pressure. The result of this process is small granules with a diameter of 6-14 mm – pellets, which can replace conventional heat sources, such as firewood. No additional additives are used in this manufacturing process, making it a clean ECO fuel. The low moisture content and high-quality sawdust ensure high calorific value and a low percentage of ash, which can also be used as fertilizer.

Content of the article

  • What are wood pellets
  • Plant-based pellets
  • Wood pellets vs. Plant-based pellets
  • Advantages of heating with pellets
  • Ash as fertilizer
  • Calorific value of pellets and price
  • Consumption, heating requirements, and pellet storage

Wood Pellets

Wood and wood waste are classified as solid biomass, and they make up 100% of the base for wood pellets. Due to high pressure and heating, the cellulose in the wood transforms into a natural adhesive, and after cooling, the pellets hold their shape. No additives, glues, or chemicals are required. When burned, they produce a minimal amount of ash, which can be used in the garden as natural fertilizer since it is pure burned wood. All wood fuels, including wood pellets, are considered renewable energy sources.

Plant-based pellets

Plant-based pellets, also known as alternative pellets, are made from surplus agricultural production such as straw, hay, alfalfa, special feed sorrel, and waste generated during grain cleaning, oilseeds, and legumes. Compared to wood pellets, they typically have a higher ash content (5%). Plant-based pellets – agro pellets – are a significant source of renewable energy and represent considerable potential for rural economic development. Alternative pellets can only be burned in special boilers designed for this purpose.

Wood pellets vs. Plant-based pellets

Both types of pellets are natural heating sources, also known as eco-fuels. The main difference between wood pellets and plant-based pellets lies in the components from which they are made. Wood pellets are made from wood and wood sawdust, while plant-based pellets are made from agricultural waste. This leads to another significant difference – the combustion of the different types of pellets. For this reason, only certain types of boilers are suitable for plant-based pellets, for example (https://ekokotle.sk/kotly/automaticke-kotly/vento-bio/). Since plant-based pellets produce 5 to 10 times more ash, it is necessary to remove ash every day or every other day. On the other hand, a major advantage of plant-based pellets is their lower price compared to wood pellets.

Advantages of heating with pellets

Thanks to their size and packaging in bags, handling pellets is much easier compared to traditional wood. Pellets are ideally burned in a pellet boiler. These are mostly automatic boilers that have their own dispensers, which adjust the amount of pellets consumed. As a result, the boiler does not overheat, and heating efficiency with pellets is maximized. Refilling is very simple and, compared to wood or coal, much cleaner – which is why pellets are a good choice for home heating in small boilers or stoves.
  • Pellets are small, compact, and easy to dose.
  • Easy handling of pellets thanks to bag-bag packaging.
  • 100% prírodný produkt s minimom popola
  • Popol z dreva môžete využiť ako minerálne hnojivo do záhrady

Popol ako hnojivo

Zloženie popola vzniknutého pri spaľovaní dreva, brikiet alebo keď spaľujete drevené pelety zodpovedá vysoko kvalitným minerálnym hnojivám, ktoré nájdete v obchodoch. Podľa štúdie Českej poľnohospodárskej univerzity v Prahe a údajov českej firmy BIOMAC v sebe môže mať takýto popol z peliet, brikiet alebo dreva až 30% vápnika, 10% draslíka, 5% horčíka a 3% fosforu. Väčšina týchto živín sa do dreva dostala z pôdy počas rastu stromu, a tak sa teraz po jeho spálení môže prirodzene vrátiť späť.

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