21
UNIVERSAL-6 60
Instructions for use
6.2
HEAT RADIATION
The table below shows the temperatures which can theoretically be achieved by
burning wood.
Heat radiation
Sort of fuel
kWh/kg
Dry wood (
average
)
4.3
Briquettes (
average
)
5.0
The heating value of wood (18.7 MJ/kg at 0% humidity) is not affected by the sort of
wood. What does make a difference is the relative humidity of the wood (15.6 MJ/kg
at 15% humidity).
ê
Per fi lling:
(= for 45 minutes)
Wood:
2 blocks each around 1.0 kg
Briquettes:
2 blocks each around 0.75 kg
Dimensions wood block: c. 25 cm long and 25 cm perimeter .
The maximum burning load is based on a nominal capacity of 8 kW and a
effi ciency of 76%.
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