Heat value
Wood is suitable as natural, regenerating raw material in combined heat and power stations or also in the private chimney oven very well for the energetic use.
Energy from wood is pollution free, comfortable and economical. The energy raw material wood is surface covering and lastingly available with us. It knows together with other regenerative sources of energy an important contribution in the modern energy-mixes carries out.
| Kind of wood | Fuel value in m3 large timber rounded to 100 kWh | Fuel value in Kilogram large timber on 100 kWh |
|---|---|---|
| beech | 2100 | 4,2 |
| oak | 2100 | 4,2 |
| ash-tree | 2100 | 4,2 |
| ironwood | 1900 | 4,3 |
Crucial portion of the heat value of the wood has however the water content of the wood. Thus one says that freshly hit wood up to 50 % can contain water of its weight.
After at least one year's dry storage the wood is "air-dry" and contains then only 15 - 20 % water.
“Now the correct time is to worry about firewood for the winter.”
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