Pellet: Made from woody materials (wood pellet). Many materials originated by agriculture could be used for production of agri-pellet (agropellet). The agripellet have high ash content and lower calorific value as wood pellet. (For the CARBOROBOT usable both type)
Wood chips: Woodchip can be used alone in CARBOROBOT up to 25% moisture content. If it is higher than use coal or pellet mixing.
Bio mix:(Bio-mixes, co-firing) The CARBOROBOT Bio boilers can operate with coal+biomass and biomass+biomass mixes up to 0-100% . Biofuels and coal possible to mix freely in granule(5-25mm).( agripellet   wood chip)

Brown coal, lignite: all type of this coal usable in granulate 5-25mm
Sub- bituminous coal: the lower ranked long flames, not cokig coal types usbale (Don't use the bituminous coal, antracit, coke !)
Coal briquett: For the CARBOROBOT the size of the briquette is the most important parameter. Usable the small size "perl" briquette or fraction max. piece size 30mm.

Further informations Fuel type