ROSA - ROSETTA BII
Besides the adjustment of the air for the combustion, the intensity of the combustion and consequently the thermal performance of the
device is influenced by the stack. A good draught of the stack requires a stricter adjustment of air for combustion, while a poor draught
requires a more precise adjustment of air for combustion.
To verify the good combustion, check whether the smoke coming out from the stack is transparent.
If it is white, it means that the device is not properly adjusted or the wood is too wet; if instead the smoke is gray or black, it signals that the
combustion is not complete (it is necessary a greater quantity of secondary air).
WARNING: When fuel is added onto the embers in the absence of a flame, a considerable amount of fumes may develop. Should this
happen, an explosive mixture of gas and air may form, and in extreme cases an explosion may occur. For safety reasons it is advisable
to perform a new lighting procedure with the use of small strips.
11.1. USE OF THE OVEN (If present)
Thanks to the air flow for the combustion, the temperature of the oven may become remarkably affected. A sufficient flue of the chimney
and of the channels, well cleaned for the flow of burning smokes around the oven are fundamental for a good cooking result. Thick cakes
and big roasts must be introduced in the lowest level. Flat cakes and biscuits must reach the medium level. The upper level may be used
to heat or grill.
The oven pan and the chrome plated oven grille may be located on different plans (see chapter Technical Description - ACCESSORIES).
When cooking food with high humidity, cakes with fruit or fruit itself, water of condensation will be produced. During the cooking process
some water vapour in the form of drops of condensed water can deposit onto the top and the side of the door. It is a physical phenomenon.
By opening the door briefly and carefully (1 or 2 times, or even often in case of longer cooking times) you can let out the steam from the
cooking compartment and reduce condensation significantly.
This product is equipped with a cast iron furnace grill (OPTIONAL) which can be removed using a specific handle. The upper position
optimise the use of the hotplate while the lower one optimise oven heating
11.2. OPERATION IN TRANSITION PERIODS
During transition periods when the external temperatures are higher, if there is a sudden increase of temperature it can happen that the
combustion gases inside the flue cannot be completely sucked up.
The exhaust gases do not come out completely (intense smell of gas). In this case, shake the grating more frequently and increase the air
for the combustion. Then, load a reduced quantity of fuel in order to permit a rapid burning (growing up of the flames) and the stabilization
of the draught. Then, check that all openings for the cleaning and the connections to the stack are air-tigh.
In case of doubt, do not operate the product.
12. SUMMER STOP
After cleaning the hearth, chimney and hood, totally eliminating the ash and other eventual residues, close all the doors of the hearth
and the relevant registers; in case you disconnect the appliance from the chimney you must close its openings in order to let work others
possible appliances connected to the same flue.
We suggest performing the cleaning operation of the flue at least once per year; verifying in the meantime the actual status of the rope
seals, which cannot ensure the good operation of the equipment if they are not in good condition and are not making a good seal! In this
case the seals must be replaced.
In presence of dampness in the room where the stove has been placed, we advise you to put absorbent salts into the hearth.
If you want to keep for long the aesthetic look of the cooker it is important to protect its internal walls in row cast iron with neutral Vaseline.
13. MAINTENANCE AND CARE
Check the external air intake, by cleaning it, at least once a year. The stack must be regularly swept by the chimney sweeper.
Let your chimney sweeper in charge of your area check the regular installation of the device, the connection to the stack and the aeration.
IMPORTANT: The maintenance must be carried out only and exclusively with cold device . You should only use spare parts approved
and supplied by La NORDICA. Please contact your specialized retailer if you require spare parts. YOU MUST NOT MAKE ANY
CHANGES TO THE DEVICE!!!
13.1. GLASS CLEANING
Thanks to a specific inlet of secondary air, the accumulation of dirty sediments on the glass-door is reduced with efficacy. Nevertheless this
can never be avoided by using solid fuels ( particularly wet wood ) and it has not to be understood as a defect of the appliance.
IMPORTANT: The cleaning of the sight glass must be carried out only and exclusively with cold device to avoid the explosion of
the same. For the cleaning, it is possible to use specific products or a wet newspaper paper ball passed in the ash to rub it. Do not use
cloths, abrasive or chemically aggressive products by cleaning the hearth glass.
The correct lighting phase, the use of proper quantities and types of fuels, the correct position of the secondary air regulator, enough
draught of the chimney-flue and the presence of combustion air are the essential elements for the optimal functioning of the appliance and
for the cleaning of the glass.
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Picture 8 at page
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