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The POWERCHIP has been designed as a wood chip boiler and is suitable for the combustion of wood chips (G30, max. W30). Wood chips are created from residual forestry wood or trees. Store chippings at least for one summer after felling in an airy, sunny location. In sunny spots, the material can be laid down with needles to utilise the "suction effect" of needles. Special chippers reduce the wood that has been drying for at least several months to the required size.
QUALITY CLASSES
Moisture content | Value | |
W20 air-dried | < 20% | 120 % |
W30 can be stored | >20 % <30% | 110 % |
W35* | >30 % <35% | 100 % |
W40 damp** | >35 % <40% | 85 % |
W50 harvest fresh** | >40 % <50% | 65 % |
*limited storage
**cannot be stored
ENERGY DENSITY – VOLUME
1 tcm* | Spruce | 750 kWh |
1 tcm* | Scots pine | 880 kWh |
1 tcm* | Larch | 960 kWh |
1 tcm* | Oak | 1050 kWh |
1 tcm* | Beech | 1050 kWh |
*Tipped cubic metre
PROPERTIES
Net calorific value | 3.3 - 4.0 kWh/kg |
Poured weight | 180 kg - 270 kg/tcm* |
Wood chip size | G30 up to 30 mm |
Primary energy factor | fP = 0.2 |
*Tipped cubic metre