燃やす
air
black
boil
boiler
boiling
burner
climate
contour
convenience
design
device
domestic
electric
element
energy
equipment
furnace
gas
heat
heater
home
hot
house
household
icon
illustration
indicator
installation
isolated
line
metaphor
object
outline
silhouette
single
symbol
tank
tankless
temp
temperature
thermal
thermodynamic
thin
vertical
water
web
white