Useful information

Coniferous or deciduous pellets

Wondering whether to buy coniferous or deciduous pellets?

Most pellet consumers have one main criterion when buying pellets, and that is price. Everyone is looking for the lowest possible price, but in most cases this is the wrong approach. Low cost pellets are made from residual materials and are of low quality. Their bark content is high, which leads to a high amount of ash and increases the formation of slag. This is the reason for the low quality of the product and can cause costly damage to your heating system.

According to us and many other experts in the field, consumers must first pay attention to the ash content and caloric content of pellets, so they can make the right decision and enjoy a cozy and calm winter.

According to the experts from, deciduous pellets usually have a lower price than coniferous ones, but they have a higher ash content and are lower in calories. As already mentioned, the higher ash content is one of the criteria by which you can understand that the quality of the product is lower. The calorific value of pellets is another important factor in which coniferous pellets outperform deciduous ones. According to Biomass magazine, coniferous wood has a higher percentage of resin content than deciduous wood, which leads to the fact that coniferous pellets produce more heat per kilogram (which makes them more caloric). The burning temperature of pellets depends on their humidity. The moisture content lowers the lower combustion temperature because part of the energy reserve is used for its evaporation.

Zemen Pellets stands firmly behind the high quality of our product. Our pellets are one of the most caloric on the Bulgarian market. We also offer a guarantee for their quality. You can return the pellets if they do not meet the high standard we guarantee. We would like to specify that good pellets burn properly with a well-tuned heating equipment. If your technician claims that the problem is in the pellets, we suggest you contact us to discuss the settings of your heating equipment.



How to test the quality of the pellets?

  • Your pellets should smell like the type of wood they are made of. If this is not the case, the manufacturer uses other raw materials in the production process, which can drastically reduce the quality of the production.
  • It is important that the colour of the pellets resembles wood. If the wood pellets contain coloured particles that are white, green, red or blue, this may be a sign that the wood pellets are not made of pure wood. If this happens be careful! Such pellets can be harmful to use as a fuel for both you and the environment.
  • If you want to be convinced of the high quality of the product, light the pellets and let them burn! They must smell of burning wood and nothing else.
  • Another popular and easy to perform test for the quality of the pellets is placing them in a glass of water. If you decide to try this method, immerse the pellets in water and wait a few minutes to see if the pellets begin to dissolve. If the pellets float on the surface, this is a sign of their low quality. The pellets must sink into the glass with water and dissolve and lose their shape. This is an indication that the probability of the pellets containing an artificial binder exceeding the maximum limit of 1% is low. This is a sign of the good quality of the pellets and the presence of natural binders in their production.

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Zemen, st. „Promishlena“

Warehouse, st. „Okolovrasten pat“ 196