Fuel
Dry wood (15% humidity)
Wet wood (50 %
humidity)
Wood briquettes
Brown coal briquettes
Normal anthracite
Coke
Natural gas
Naphtha
Electricity
Approximate combustion
value
Unit
kcal/h
Kg
3600
Kg
1850
Kg
4000
Kg
4800
Kg
7700
Kg
6780
3
m
7800
L
8500
kW/h
860
Required quantity in
relation to 1 kg of dry wood
kW
4.2
1.00
2.2
1.95
5.0
0.84
5.6
0.75
8.9
0.47
7.9
0.53
9.1
0.46
9.9
0.42
1.0
4.19
EN