燃やす
auto
blow
boiler
burner
check
cold
control
cylinder
dial
efficiency
energy
filament
fire
flame
fuel
furnace
gas
heat
heater
home
hot
house
household
igniting
ignition
industrial
injection
inspection
interior
light
lit
natural
operating
out
pilot
power
propane
radiator
relight
relite
repair
setting
stove
tank
technology
temperature
utility
warmer
water