煤气取暖器

例句：

1. 1. We need to turn off thegas heater before leaving the house.
   离开前，我们需要关掉煤气取暖器。
2. 2. The gasheater is very efficient and saves alot of energy.
   煤气取暖器非常高效，能节省很多能源。
3. 3. Thegas heater has been workingperfectly since it was installed.
   自从安装以来，煤气取暖器一直运行得很好。