35
We would strongly recommend that you do not leave your stove alit at night. It
harms the environment and constitutes very poor use of the wood as the gases
in the wood do not ignite at the low temperature, but settle as soot (unburned
gases) in the chimney and stove. Extreme conditions, such as poor draught in the
chimney, large quantities of wood or wet wood, may in the worst-case scenario
cause an explosive ignition.
When firing in the summer period, when there is minimal need for heat, the combustion
will be poor. The stove provides too much heat so the combustion should be reduced.
But always remember to make sure that there are lasting flames until the wood be-
comes charcoal. If you want a weaker fire, stoke up using less wood.
If you fire the stove using wet wood, a lot of the fuel’s thermal energy will be spent
forcing the water out of the wood, without releasing any heat to the stove. This
incomplete combustion results in a layer of soot being left in the stove, pipe and
chimney.
Comparison between firing with wood and oil:
Type of wood (moisture content 20%)
No. of cubic metres per 1000 litre oil
Oak
Beech
Ash
Sycamore
Birch
Elm
Common spruce
Silver fir
7.0
7.0
7.2
7.5
8.0
8.9
10.4
10.9
Summary of Contents for S81 Series
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