As the summer of 2025 slowly recedes and colder days take their toll, many are already thinking about preparing to heat their homes with pellets. However, many users are making some surprising findings: pellets that have been stored since last winter often lose their basic properties and their heating performance is not what it should be. This phenomenon, most often caused by improper storage, can lead not only to lower comfort in the home, but also to a significant increase in heating costs.
How humidity and temperature affect the quality of pellets after prolonged storage
In many Czech households, where pellets from companies such as Enviro Pellet or Pelltech are starting to heat, it is customary to store the fuel in the garage or basement. However, this seemingly logical decision may have hidden consequences. The moisture that penetrates the packaging and temperature fluctuations that cause condensation can significantly degrade the pellets. The result is pellets that break into weaker, almost unusable pieces, which is also confirmed by manufacturers Bio-Mac and Agro CS.

Signs of pellet degradation: what to notice in time
Users of products such as Veskom and UNIPEL should be careful when checking their stocks. Loss of calorific value is often manifested by less intense heat and irregular burning. The strength of the granules decreases, which leads to the formation of dust and small particles that can clog boilers or pellet stoves. The amount of moisture is often also manifested in the form of stains or a musty smell in the packaging, which you can recognize with the Wopa Pellets or Pelety CZ brands.
The most common mistakes in pellet storage and their impact on the household economy
The experience of families using firewood Prague and Ekopellets clearly shows that uncontrolled storage leads to waste. Beginners and advanced users often reach for a spare place in an unsuitable environment and forget about moisture prevention. This causes several bags of pel-pellet to remain lying around and turn into an inefficient material that heats less and consumes more.
How to improve pellet storage and maximize heating performance
The ideal solution is to store pellets in dry, well-ventilated areas that are protected from direct contact with a humid environment. Stores with products such as Pelltech and ENVIRO Pellet recommend using pallets or special storage boxes that prevent moisture from the floor. After opening the original packaging, the pellets need to be used as soon as possible, or the bags must be tightly closed.
Investing in air dehumidifiers or storage systems may sound expensive at first, but it brings savings in the long term and ensures better functionality of heating devices. Access to detailed information and services from companies such as Agro CS or BioMac can significantly help prevent performance losses.
