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space heater
A space heater is a device for heating an enclosed area.〔(【引用サイトリンク】 Space Heater Defined )〕 Space heating is generally employed to warm a small space, and is usually held in contrast with central heating, which warms many connected spaces at once. Permanently installed space heaters may use electricity or burn natural gas, propane, fuel oil or wood pellets and may operate on heat pump principles and may provide air conditioning. For portable use electric heaters are most appropriate, because gas heating can be very dangerous without a permanent flue.
==Types of heaters==
Space heaters can be divided into those that transfer their heat primarily by convection, or by radiation.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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