Lacunza Sara, Instruction Book

Page: 12 / 27

INSTRUCTIONS OF USE 11
3.
INSTRUCTIONS OF USE 3.
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.

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.

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.9 - Relationship between firewood
humidity and heat output.