La Nordica Dorella L8 X Liberty [22/68] Majolicas

La Nordica Dorella L8 X Natural Stone [22/68] Majolicas
DORELLA L8X
22 1191032
can simultaneously perform an audit of the ue (checking of possible deposits).
During the cleaning, it is necessary to remove the ash drawer, the grating, and the smoke deectors from the device in order to ease the
fall of the soot. The deectors can be easily extracted from their seats since they are not fastened using screws. Once the clearing has
been carried out, place them back in their seats (Picture 10 at page 62 ).
CAUTION: The lack of the deectors causes a strong depression, with a too fast combustion, an excessive consumption of wood
with related overheating of the device.
12.4. MAJOLICAS
La NORDICA has chosen majolica tiles, which are the result of high-quality artisan work. As they are completely carried out by hand, the
majolica may present crackles, speckles, and shadings. These characteristics certify their precious origin.
Enamel and majolica, due to their different coefcient of dilatation, produce microcrackles, which show their authentic feature.
For the cleaning of the majolica we suggest you to use a soft and dry cloth; if you use a detergent or liquid, the latter might soak in
and highlight the crackles permanently.
12.5. PRODUCTS MADE OF NATURAL STONE
Natural stone has to be cleaned with very thin abrasive paper or with an abrasive sponge. Do NOT use any cleanser or uid.
12.6. VARNISHED PRODUCTS
After some years of product use a change in the varnished details colour is totally normal. This is due to the considerable temperature
range the product is subject to whenever in use and to the varnish ageing of time passing by.
ATTENTION: before any possible application of the new varnish, do clean and remove all the traces from the surface which has to be
varnished.
12.7. ENAMELLED PRODUCTS
For the cleaning of enamelled surfaces use soap water or not aggressive and not chemically abrasive detergents. After the cleaning do
NOT let soapy water or any cleanser dry but remove them immediately.
DO NOT use sandpaper or steel wool.
12.8. CHROMIUM-COMPONENTS
If the components become bluish due to overheating, this can be solved with a suitable product for cleaning. DO NOT use abrasives or
solvents.
12.9. CAST IRON RINGS
The cast iron rings needs to be periodically cleaned by using sandpaper (grain 150) without touching the enamelled parts..
IMPORTANT: to avoid rust DO NOT forget pots or pans on the cold stove. This would create rust rings, unpleasant to see and difcult
to remove.
13. CALCULATION OF THE THERMAL POWER
There is not an absolute rule for calculating the correct necessary power. This power is given according to the space to be heated, but it
depends also largely on the insulation. On an average, the caloric value necessary for a properly insulated room is 30 kcal/h per m
3
(for
an external temperature of 0°C).
Given that 1 kW corresponds to 860 kcal/h, it is possible to adopt a value of 35 W/m
3
.
Let’s suppose one wishes to heat a room of 150 m
3
(10 x 6 x 2.5 m) in an insulated apartment. In this case, it is necessary to have 150 m
3
x 35 W/m
3
= 5250 W or 5,25 kW. As main heating, a 8 kW device is therefore sufcient.
Approximate combustion value Required quantity in relation to 1 kg of dry
wood
Fuel Unit kcal/h kW
Dry wood (15% humidity) kg 3600 4.2 1,00
Wet wood (50% humidity) kg 1850 2.2 1,95
Wood briquettes kg 4000 5.0 0,84
Brown coal briquettes kg 4800 5.6 0,75
Normal anthracite kg 7700 8.9 0,47
Coke kg 6780 7.9 0,53
Natural gas m
3
7800 9.1 0,46
Naphtha L 8500 9.9 0,42
Electricity kW/h 860 1.0 4,19

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