加热器

例句：

1. 1. The electric heater keeps the room warm during winter.
   电加热器在冬天保持房间温暖。
2. 2. The gas heater is easy to use and provides a lot of heat.
   燃气加热器易于使用且提供大量热量。
3. 3. The heater in the kitchen is not working properly.
   厨房里的加热器不工作正常。