Morso 7110 Instructions For Installation And Use Manual page 11

If you require a lower burn rate and lower output
Add smaller amounts of wood and let in less air; but remember that the primary air vent should
never be fully closed when you have just refuelled. Only when the fuel has reached the charcoal
stage (i.e. when no flames are coming from the wood because it has been changed into embers)
should you turn down. Also be aware that the most important thing when burning wood is to
maintain a good layer of glowing embers.
If more heat is desired, gather the embers to the front of the stove and place a charge small
kindling on top. Once the kindling has ignited, slowly add more wood until a nice layer of embers
has been established; you can then begin to add thicker logs, following the method described
above.
The rule of thumb for regulating the heat is:
A LITTLE HEAT - A LITTLE WOOD - A LITTLE AIR
A LOT OF HEAT - A LOT OF WOOD - A LOT OF AIR
When using the stove for longer burn times, put a lot of wood in the stove and let in just
a little air. The wood's heat value will not be optimised during such periods.
When lighting the stove in the summer, the combustion is likely to be poor. During the
summer the stove is likely to produce more heat than is needed it is therefore likely that
the stove would be run too low; this could lead to condensation in the flue and would
ultimately lead to hazardous tar and creosote formation.
If you light the stove with damp fuel, a large portion of the wood's heat value will be used
to dry out the fuel instead of releasing heat into the room. This again leads to incomplete
combustion and will cause tar and creosote deposits in the flue and chimney system.
In the event that a chimney fire occurs resulting from faulty operation or prolonged
use of damp wood fuel, close the air vents completely and contact your local fire
department immediately.
Comparison between wood-burning and oil-burning
Type of wood (moisture content 0%)
Oak
Beech
Ash
Sycamore
Birch
Elm
Common spruce
Silver fir
No. of cubic metres per 000 litre of oil
7.0
7.0
7.
7.5
8.0
8.9
0.4
0.9