Combustion Control; Turning The Stove Off - Ravelli Calliope EU Manual De Uso Y Mantenimiento

Rev.0 05/05/20
Page 61
All exposed surfaces of this stove will reach high temperatures. Remember always to use the glove provided during the
operation.
After the lighting procedure, please see passage regarding primary and secondary air control for intermittent use. Do not use the stove with
the door open. Unless you are refueling the fire, the door should be closed.
It is recommended to stoke no less than 2 pieces of wood at each refueling.

Combustion control

When combustion chamber and chimney reach the operating temperature it is possible to adjust the primary air to achieve the
maximum yield. The combustion speed, therefore the generated thermal power, is controlled by the amount of wood in the combustion
chamber and by the amount of primary air. An excessively high flame makes the wood last less and lowers the stove's yield. Maximum
performance is achieved by loading and adjusting the stove as in the EN 13240 tests. In the EN 13240 test the stove was operated
as shown in the figure: with three pieces of 180 mm birch wood for a total of 1.75 kg. The primary air is 43% open - the secondary
air is 40% open.
To reduce the power, move the primary air lever slightly to the left.
Combustion is efficient and clean when the flame is light yellow. If the flame is tinged with red or if there is black smoke in the
combustion chamber, it is probably necessary to increase the primary air slightly.
An initial period of use is required to understand how to correctly control combustion.
NEVER CLOSE THE PRIMARY AIR LEVER ALL THE WAY WHEN THERE IS A FLAME OR BURNING EMBERS.

Turning the stove off

To turn the stove off, proceed as described below:
1 Wait for the flame and embers to be completely extinguished.
2 When there is no flame and the bed of embers no longer releases heat, close the primary air completely.
Use and maintenance manual Calliope EU