noun
gas heater; gas fire
A portable or fixed heating appliance that burns gas, common in Japanese homes. Despite the English-derived name, it is a heater, not a cooking stove.
wasei-eigo (Japanese-coined English), from gas stove
寒いのでガスストーブをつけた。
It was cold, so I turned on the gas heater.
Variant with interpunct; less common in everyday writing.
Wasei-eigo from English 'gas' and 'stove', but used in Japanese to mean a gas heater, not a cooking appliance.