FERROLI FG - Manuel (Page 5)

FG
5 GB
cod. 3540I950 - 06/2007 (Rev. 00)
1.3 Lighting and shutdown
Fuel
The boiler must only operate with normal and untreated wood. The logs can be 50 cm long for models FG30 and FG40,
and 70 cm for model FG50. Pressed fuels and briquettes can also be used, provided they are entirely of wood.
B
The burning of waste, plastic or liquids can create dangerous burnt gases with risk of poisoning, death or ex-
plosion.
• Only use the specified fuels.
• In the presence of risk of explosion, fire, burnt gases or fumes, put the boiler out of service.
• The boiler must only be operated by adults who are familiar with the boiler instructions and its operation.
• The user is only authorised to start the boiler, set the heating temperature, put it out of service and clean it.
• Keep unsupervised children away from the boiler when it is operating.
• Do not burn liquids or use them to increase boiler performance.
• Only use non-flammable agents to clean the surface of the boiler.
• Do not place flammable objects on or near the boiler.
• Do not place flammable materials in the boiler installation compartment (e.g. wood, paper, petroleum, gas oil).
Wood is an extremely heterogeneous fuel for type, moisture content, shape and size. Boiler heating efficiency depends
on the type of wood used and its moisture content, as well as the method of loading and size of the fuel. Excellent quality
woods are oak, ash, beech, maple and fruit trees except cherry; chestnut and birch are good quality; lime, poplar and
willow are of adequate quality. Resiniferous woods are generally mediocre fuels. The higher the moisture-content, the
lower the heating power. The use of fuels that are not dry causes losses of efficiency. Use logs dried outdoors and in
the natural state (stored for 2 years with max. moisture content 20%).
Boiler lighting
• Open the bottom door and remove any ash present in the combustion chamber. Close the bottom door.
• Switch on the power to the unit. Turn the switch to ON.
• Open the top door. Place some paper and kindling on the burner plate.
• Light the fuel and add some slightly larger pieces of wood.
• Close the door and wait for a first bed of embers to form.
• Open the top door slowly to allow the fan to suck the smoke accumulated in the firewood holder.
• Spread the embers evenly on the burner plate, using a poker.
• Load wood when the bed of embers has formed on the main stone.
Loading wood
• Proceed with loading wood which must be 50 cm long for models FG30 and FG40, and approx. 70 cm for model
FG50.
• Since regular falling of the wood is essential for good combustion, make sure that the length of the pieces of wood
introduced, their shape and method of loading do not hinder it. The pieces must be arranged lengthwise and hori-
zontally. No pieces must be inclined or placed sideways.
• Consume the wood as much as possible before loading more.
• New loading can be carried out when the bed of embers in the holder is approx. 5 cm deep.
• Open the top loading door slowly.
• Arrange the new load of wood in the same way as previously described.
B
- Pieces that are too long do not fall regularly, causing empty spaces in the wood holder, with the formation of
unburnt wood areas.
- Pieces that are too short cause uneven air passages, with a decrease in power and efficiency.
- Always open the top door slowly, in order to avoid puffs and the creation of smoke.
- Never open the bottom door during operation.
- During loading avoid keeping the top door open for long periods.
- In case of operation with reduced performance, low temperature distilled gases can form, with risk of poison-
ing if breathed.
- If dense smoke can be seen, do not breathe it.
- Make sure the installation room is well-ventilated.
- Clean the boiler and gas exhaust ducts as prescribed.