Lacunza Clasica 5T, Instruction Book

Page: 13 / 36

INSTRUCTIONS OF USE 12
3.
INSTRUCTIONS OF USE
The manufacturer accepts no liability
whatsoever for damage caused to parts as
a result of the improper use of non-
recommended fuels, modifications made
to the appliance or how it is installed.
Only use original replacement parts.
All local and national regulations,
including those referring to national and
European standards, must be observed
when using the appliance.
Heat is diffused by radiation and
convection via the front and exterior of the
appliance.
3.1. Fuel
This appliance must not be used as an
incinerator. Do not use non-recommended
fuels.
•
Use dry logs (max. 16% humidity),
cut at least 2 years ago, clean of resin and
stored in a sheltered, ventilated place.
•
Use hard woods with high calorie
values and good ember production.
•
Large logs should be cut to useable
lengths before being stored. The logs
should have a maximum diameter of
150mm.
•
Finely-chopped wood produces
greater heat output, but also burns more
quickly.
Optimum fuels:
•
Beech.
Other fuels:
•
Oak, chestnut, ash, maple, birch,
elm, etc.
•
Pine and eucalyptus logs are low
density and produce very long flames and
may cause the parts of the appliance to
wear out more quickly than normal.
•
Resinous wood may mean that the
appliance and the flue need to be cleaned
more often.
Non-permitted fuels:
•
All types of coal and liquid fuel.
•
“Green wood”. Green or damp
wood reduces the performance of the
appliance and leads to soot and tar build-
up on the inner walls of the flue,
obstructing it.
•
“Recovered wood”. The burning of
treated woods (railway sleepers, telegraph
posts, plywood, fibreboard, pallets, etc.)
quickly blocks the system (soot and tar
build-up),
harms the environment
(pollution, smells) and may lead to
deformation of the firebox due to
overheating.
•
All materials which are not wood
(plastic, spray cans, etc.).
Green and reprocessed wood may cause
chimney fires.
The graph below shows how the
humidity of firewood affects its heat
output:
Figure No.11 - Relationship between
firewood humidity and heat output.