La Nordica Nicoletta con Forno Evo бордовый [22/68] Maintenance of the oven where existing

ROSSELLA PLUS FORNO - EVO NICOLETTA FORNO - EVO

22 7192300

12.10. MAINTENANCE OF THE OVEN (where existing)

To avoid the possible forming of rust it is recommended:

- To let the steam getting out of the oven to reduce the formation of any condensation by opening the door briey and carefully (1 or 2

times, or more often in case of cooking food very humid and with longer cooking times);

- Remove the food from the oven once cooked. Letting the food to chill in the oven at a temperature below 150 °C results in the forming

of condensation;

- After cooking, leave the oven door partially open to dry out any condensation;

- In case humidity formed inside the oven, we suggest you to treat with neutral vaseline the inside part of the cast iron door.

- Repeat the treatment with the neutral vaseline on the inside part of the cast iron door every 3-6 months, depending of the frequency

of the use of the oven;

- In case of presence of rust on the inside part of the cast iron door, remove the rust by using abrasive material and then treat the cast

iron surface with neutral vaseline.

In order to ensure the quality of the foods that are cooked in the oven, the internal parts of the cast iron doors have NOT been

treated with any product.

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

(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

Let’s suppose one wishes to heat a room of 150 m

(10 x 6 x 2.5 m) in an insulated apartment. In this case, it is necessary to have 150 m

x 35 W/m

= 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

7800 9.1 0,46

Naphtha L 8500 9.9 0,42

Electricity kW/h 860 1.0 4,19