41
ECO 40 / 52 / 55
ECO 52:
Per • lling: Calculated per hour:
(= for 45 minutes)
Wood: 2 blocks, each around 0.75 kg 3 blocks, each around 0.75 kg
Briquettes:
3 briquettes, each around 0.35 kg 5 briquettes, each around 0.35 kg
Dimensions wood block: c. 15 cm long and 35 cm perimeter
(• 0.75 kg).
The maximum burning load is based on a
nominal
capacity of
7 kW and a
ef• ciency of
75%.
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9.2. 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
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).
ECO 55:
Per • lling: Calculated per hour:
(= for 45 minutes)
Wood: 2 blocks, each around 1.0 kg 3 blocks, each around 1.0 kg
Briquettes:
3 briquettes, each around 0.5 kg
5 briquettes, each around 0.5 kg
Dimensions wood block: c. 15 cm long and 40 cm perimeter
(• 1.0 kg).
The maximum burning load is based on a
maximal
capacity of
± 11 kW and a
ef• ciency of
76%.
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