Brunner Iron dog 03, Руководство пользователя

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© 2013 Brunner GmbH User manual IRON DOG 03 (1.0) 15
6 FIREWOOD AND HEATING POWER
The combustion process in our devices has been optimized to enhance
their performance and reduce emissions. You can support our efforts to
protect our environment by respecting the following recommendations for
low-emission heating: Use only dry, natural firewood with a water content
below 20% or wood briquettes according to DIN 51 731, size class HP2.
Damp, freshly cut or improperly stored wood has a high water content,
therefore does not want to burn, makes a lot of smoke and gives not much
of heat. Use only firewood stored for at least two years in a dry place with
sufficient air circulation. Because dry wood is much more calorific, you can
save on fuel costs.
For example: Dry wood has a calorific value of approx. 4 kWh/kg, fresh-
ly cut wood only 2 kWh/kg. You will need twice the amount of wood to
achieve the same heating power.
Water content g/kg
wood
Calorific value
kWh/kg
Consumption
raised by %
very dry 100 4,5 0
stored for 2 years 200 4 15
stored for 1 year 350 3 71
freshly cut wood 500 2,1 153
Natural firewood (picture
left) is the best fuel for fire-
places, but you can also use
wood briquettes complying
to DIN 51 731, size HP2 (pic-
ture right).