Lignum NG
8
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Once the fire has spread and embers have formed, distribute them evenly, add the rest of
the load on top and fully close the doors.
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The control automatically regulates the combustion process.
3.4.3
Sawn wood (planks)
Sawn wood can be used in a similar way to kindling to ease ignition above the tunnel. The
planks should not be placed too close to each other, so that air circulates during ignition. It is
recommended that at least 1 cm be left between planks.
3.4.4
Thick wood or stumps
Thick wood or tree stumps (part of the trunk joined to the root) can be placed on the top layer,
on top of several layers of firewood. Do not use more than one oversized piece of firewood or
stump in the same load.
3.4.5
Thick kindling and woodworking waste
Thick kindling (G100, > 100mm), small material, woodworking waste, etc. must only be placed in
the loading compartment on top of at least three layers of firewood (approximately half of the
combustion chamber).
3.5
Unsuitable fuel
- Wood with >20% humidity.
- Waste, plastics
- Paper and cardboard (only for ignition).
- Sawdust, wood shavings.
- Small kindling.
- Coal.
- Material generally forbidden by legislation regarding atmospheric contamination and air
quality, such as treated wood, beams, etc.
3.6
Combustion product removal
The Lignum NG boiler is a biomass boiler and it is essential for it to be connected to a flue, i.e. a
smoke duct able to create a pressure drop (which in this case should be between 0.10 and 0.20
mbar), in compliance with the applicable laws in this regard.
The combustion product exhaustion ducts must be installed by qualified personnel and must
comply with the regulations in force. For the flue to create a pressure drop, the following
recommendations should be taken into account:
- It should be suitably insulated.
- It should be independently located, with a separate flue for each boiler.
- It should be vertical, avoiding any angles greater than 45º.
Summary of Contents for LIGNUM NG 20
Page 1: ...INSTALLATION AND OPERATING INSTRUCTIONS LIGNUM NG ...
Page 36: ...Lignum NG 34 Outside ...
Page 42: ...Lignum NG 40 NOTES ...
Page 43: ...41 NOTES ...