英文關鍵字
air
appliance
background
bathroom
black
boil
boiler
burn
burner
climate
coal
cold
comfort
conditioner
convenience
device
equipment
fire
fireplace
fuel
furnace
gas
heat
heater
heating
home
hot
house
household
icon
illustration
industry
isolated
metal
pattern
pipe
power
room
service
set
stack
steam
stove
system
temperature
valve
warm
water
winter