Pellet fuel is an eco-friendly fuel with a normal ash content of no more than 3 %.
The main resources used in the pellets production are sawmill and agriculture waste which, previously, had been mainly transported to landfills to rot; then after several years it would begin to burn or smolder.
However, if the environment of the raw material growth territory contains toxins or radioactive matter, then while the pellets are burning these substances may be dispersed into the atmosphere.
Since they contain no dust and spores, pellets are less susceptible to autoignition, and do not cause allergic reactions in humans, either.
What separates pellets from ordinary wood is their high dryness (moisture content of only 8 – 12 %, compared to the raw firewood humidity of 30 – 50 %), plus they are about one and a half times as dense as firewood. These qualities ensure higher caloricity than that of wood chips or firewood: while burning, a ton of pellets produce approximately 3.500 kW/h of heat, which is almost twice as little as the combustion of a ton of coal, one and a half times as much as that of conventional firewood, and only twice (almost three times) as low as when using gas, mazout or diesel fuel.
One of the major advantages of pellets is their high and constant bulk density, which allows relatively easy transportation of this bulk product over long distances. Due to their regular shape, small size and uniform consistency, pellets can be poured via special hoses, which allows for automating the loading/unloading processes and also the burning of this particular fuel.
For the use of pellets to be efficient, a special kind of furnace is required – a pellet stove.