20
Common
name
Scientific
name
Distribution
(Total: 18
districts)
Comments
Characteristics
Smoke
Heat
Firing
Speed
combustion
Toughness
Pine tree
Pinus
Bragança, Castelo
Branco, Coimbra,
Guarda, Leiria,
Viana do Castelo,
Vila Real and
Viseu
predominant
tree
Little
Strong
Easy
Fast
Soft
Cork (+)
Quercus
suber
Évora, Faro,
Portalegre,
Santarém and
Setúbal
predominant
tree
Little
Very
strong
Easy
Medium
Hard
Eucalyptus
Eucalyptus
Aveiro, Porto and
Lisbon
predominant
tree
Much
Medium
Difficult
Slow
Hard
Holm (+)
Quercus
ilex
Beja and Évora
predominant
tree
Little
Very
strong
Difficult
Slow
Hard
Olive tree
Olea
The entire country
except alpine
areas
less prevalent
tree than
previous
Little
Very
strong
Difficult
Slow
Hard
Oak
Quercus
Nationwide
ranging
subspecies
less prevalent
tree than
previous
Little
Strong
Difficult
Slow
Hard
Freixo
Fraxinus
river zones (Low
Vouga)
Distributed
throughout the
country in
smaller numbers
Medium
Strong
Difficult
Slow
Hard
Birch /
Birch
Birch
Highlands (Serra
da Estrela)
Distributed
throughout the
country in
smaller numbers
Little
Very
strong
Easy
Fast
Soft
Beech
Fagus
Regions of cold
weather and high
humidity (North
Portugal - Serra
do Geres)
Distributed
throughout the
country in
smaller numbers
Little
Strong
Difficult
Slow
Hard
Elm
Ulmos
The entire country
except alpine
areas (wetlands)
Distributed
throughout the
country in
smaller numbers
Medium
Strong
Difficult
Slow
Hard
Board /
False -
Maple
Acer
Minho, Beira
Litoral and Serra
de Sintra
Distributed
throughout the
country in
smaller numbers
Little
Medium
Medium
Slow
Soft
Poplar
Populus
Throughout the
country with
predominance in
Center
Distributed
throughout the
country in
smaller numbers
Little
Strong
Easy
Fast
Soft
Chestnut
Castanea
North and center
of Portugal and
saws
Distributed
throughout the
country in
smaller numbers
Medium
Strong
Difficult
Slow
Hard
(+):
Greater supply by loggers
Table 3 - List of firewood type that can be used in a SOLZAIMA equipment, their geographical distribution and
Calorific Value/Reactions
NOTICE!
The unit may NOT be used as an incinerator.