燃やす
air
bake
black
boiler
brick
burning
chair
chimney
different
electric
equipment
fire
fireplace
flame
furnace
gas
heat
heater
heating
home
house
icon
industrial
industry
isolated
lighter
line
log
mantel
matches
metal
metallurgical
metallurgy
outline
oven
pellet
pipe
plant
pump
repair
room
service
shovel
steel
stove
thin
wood