device
brasier
brazier
convector
defroster
deicer
demister
gas heater
heating pad
hot pad
hot-water heater
hot-water tank
kerosene heater
kerosine heater
oil heater
oilstove
radiator
solar heater
space heater
stove
water heater
dormer
former
informer
performer
reformer
stormer
transformer