attika Q-TEE II, User Manual, Page: 74 / 115

74
English RAIS/
attika
- User manual for RAIS Q-Tee II
ONLY USE RECOMMENDED FUELS
The following table shows the calorific value of different types of wood, which have been
stored for 2 years, and which have a residual moisture of 15-17%.
Wood Kg dry wood pr. m
3
compared to beech/oak
Hornbeam 640 110%
Beech and oak 580 100%
Ash 570 98%
Maple 540 93%
Birch 510 88%
Mountain pine 480 83%
Fir 390 67%
Poplar 380 65%
1 kg of wood yields the same heat energy irrespective of wood type.
1 kg beech merely takes up less space than 1 kg of fir.
Drying and storage
Drying wood takes time. Proper air drying takes approx. 2 years.
Here are some tips:
• Store the wood sawn, split and stacked in an airy, sunny place, which is protected
against rain (the south side of the house is particularly suitable).
• Store the firewood stacks at a hand’s breadth apart, as this ensures that the air flow-
ing through takes the moisture with it.
• Avoid covering the firewood stacks with plastic, as this prevents the moisture from
escaping.
• It is a good idea to bring the firewood into the house 2-3 days before you need it.