So, once you have the glass door, you will know what size to make your batch heater.

好，选好了玻璃门，你就知道自己可以造多大尺码的热水器了。

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And even that is only during winter when and if you drain the batch heater and use regular water pressure.

甚至乎只有在冬季，在你排空批量加热器、采用正常水压的时候才有压力。

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I prefer the sliding glass doors for three reasons. They are a really good size for a batch heater, they are tempered safety glass and they are double layered for insulation.

个人喜欢选用滑动推拉玻璃门，理由有三：它尺寸刚刚好，又是双层钢化安全玻璃做的，还有保温的功能。

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