alternative
ax
background
bio
branches
cut
detail
ecological
ecology
energy
energy saving
environment
environmental protection
fire
firewood
fuel
hardwood
heap
heat
heating
industry
log
logging
lumber
natural
nature
outdoors
pile of firewood
pine
prepared
renewable
rough
saw
shavings
shoulder
shovel
split
stack of wood
storage
stoves
stump
texture
textured
timber
tree
trunk
warm
warmth
will fall
wood
wooden
woodpile