space heater

例句：

1. 1. This space heater keeps the room warm during the winter months.
   这个空间加热器在冬天保持房间温暖。
2. 2.The space heater is easy to use and provides adequate heat for a small room.
   这个空间加热器易于使用，为一个小房间提供了足够的热量。
3. 3. We decided to buy a space heater as it would be more energy efficient than a traditional heating system.
   我们决定买一个空间加热器，因为它比传统的供暖系统更节能。