La Nordica Gemma Forno Elegance [17/48] Connecting a fireplace or open hearth to the flue

GEMMA - GEMMA FORNO

7191601 - IT - EN - DE - FR 17

6.3. CONNECTING A FIREPLACE OR OPEN HEARTH TO THE FLUE

The ue gas channel is the stretch of piping which connects the thermo-product to the ue. In the connection, these simple but extremely

important principles must be respected:

• under no circumstances use a ue gas channel with a diameter less than that of the exhaust clamp with which the thermo-product is

equipped;

• each metre of the horizontal stretch of the ue gas channel causes a slight loss of head which must be compensated if necessary by

elevating the ue;

If the ue is then too big (e.g. 30x40cm or 40x50cm), it is necessary to intubate it with a stainless steel tube with a diameter of at least

200mm, pos. B, taking care to close the remaining spaces between the pipe and the ue immediately under the chimney pot pos. C.

7. AIR FLOW IN THE PLACE OF INSTALLATION DURING COMBUSTION

As the thermo-product draw their combustion air from the place of installation, it is MANDATORY that in the place itself, a sufcient quantity

of air is introduced. If windows and doors are airtight (e.g. built according to energy saving criteria), it is possible that the fresh air intake is

no longer guaranteed and this jeopardises the draught of the appliance and your health and safety. It is therefore necessary to guarantee

a supply of fresh air through an external air inlet placed near the appliance or by placing piping for combustion air which leads outside or

to a nearby airy place, with the exception of the boiler room or garage (FORBIDDEN).

The intake of air for combustion in the place of installation must not be obstructed during operation of the thermo-product. It is absolutely

essential that in environments in which thermo-products are operated with a natural chimney draught, as much air as is necessary for

air inlet, re sucking the ue gases into the environment with very serious consequences for persons.

8. ALLOWED / NOT ALLOWED FUELS

Allowed fuels are logs. Use exclusively dry logs (max. content of water 20%). Maximum 3 logs should be loaded. The pieces of wood

should have a length of ca. 20-30 cm and a maximum circumference of 30-35 cm.

Compressed not worked-out wood briquettes must be used carefully to avoid overheating that may damage the device, since

these have a very high caloric value.

The wood used as fuel must have a humidity content lower than the 20% and must be stored in a dry place. Humid wood tends to burn

less easily, since it is necessary a greater quantity of energy to let the existing water evaporate. Moreover, humid content involves

the disadvantage that, when temperature decreases, the water condensates earlier in the hearth and therefore in the stack causing a

remarkable deposit of soot with following possible risk of re of the same.

The combustion of waste is FORBIDDEN and would even damage the appliance and the ue, causing health damages and claims by

the neighborhood owing to the bad smell. The wood is not a fuel which allows a continuous operation of the appliance, as consequence

the heating all over the night is not possible.

Variety Kg/mc kWh/kg moistness 20%

Beech

Oak

Elm

Scots pine *

ATTENTION : the continuous and protracted use of aromatic wood (eucalyptus, myrtle etc.) quickly damages the cast iron parts