Morso 7840 Instructions For Installation And Use Manual page 16

5. If the condition in step 4 is met, place max. 2 pieces of
wood with a total weight of 1.5-2 kg and a length of 25-
30 cm over the embers in a single layer, with a distance
of approximately 1 cm.
6. Open the air supply to maximum, and close the door.
The fresh wood will be lit within 1-3 minutes.
If it does not light, open the door slightly to allow in en-
ough air to ignite the wood.
Close the door again once the wood has caught.
Important!
It is important that the fresh quantity of wood
starts to burn quickly. to ensure the fuel lights
quickly, open the combustion air to max. or leave
the door ajar to allow in the amount of air needed
to light the wood.
If, however, the wood only smoulders, there will
be a strong build-up of smoke, which at worst can
cause an explosive ignition of the flue gases with
the risk of material damage and personal injury.
7. Reduce the amount of combustion air to the desired posi-
tion, and the optimal combustion will continue. Make sure
that there is always enough air (oxygen) to maintain clear,
lasting flames when, and after, reducing the amount of
combustion air.
Make sure that there is always enough air (oxygen) to
maintain clear, lasting flames when, and after, reducing
the amount of combustion air.
The stoking interval is between 45-75 minutes.
8. Once the fire has been reduced to a thick layer of embers,
a new portion of wood can be added by repeating steps 5
& 7.
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The stove door must be opened gently the first 2 - 3 centimetres, then you should wait until the
pressure has equalised before opening the door all the way. This technique will prevent smoke
from getting out, particularly when there is a poor draught.
the stove door should never be opened when the stove is being fired vigorously.
Once the wood has burned out, it becomes glowing charcoal. If a good layer of embers has
already formed on top of a sufficient layer of ash, the stove can keep warm for a very long time,
not least due to the favourable qualities of the cast iron.
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 ex-
plosive ignition.
When firing in the summer period, when there is minimal need for heat, the combu-
stion 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 becomes 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%)
Oak
Beech
Ash
Sycamore
Birch
elm
Common spruce
Silver fir
The stove's rated heat output is 7.3 kW. Your new Morsø stove is EN-tested for firing with
wood, and is suitable for intermittent use.
no. of cubic metres per 1000 l oil
7.0
7.0
7.2
7.5
8.0
8.9
10.4
10.9
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