Nordica PADOVA, Instructions For Installation, Use And Maintenance Manual

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PADOVA
7096302
27
14. 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 calorific 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
38 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 38 W/m
3
= 5700 W or 5,7 kW. As main heating, a 8 kW device is therefore sufficient.
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
15. TROUBLESHOOTING
PROBLEM POSSIBLE CAUSES POSSIBLE SOLUTIONS
The frame of
the cooker or
its parts change
colour
™
Flue draught pressure too high
™
Clean the surfaces;
™
Contact the chimney sweep for a possible installation of a throttle valve;
Bended oven
and chipped
enamel
™
Flue draught pressure too high
™
Small enamel chips do not compromise the correct functioning of the appli-
ance. In case of major damages contact the Customer Service.
™
Contact the chimney sweep for a possible installation of a throttle valve
Rust on the
stainless steel
cooking plate
™
A slight coat of rust on the whole
surface of the cooking plate
may depend on wet air (cooking
steam)
™
Grind the surface;
™
Only when the plate is cold, grease the surface with non acid grease
(vaseline or paraffin oil);
™
Only when the plate is lukewarm, clean with a soft cloth