1、Tom said he would come to repair our solar heater when he has time.
湯姆說他一有時間就來修理我們的太陽能熱水器。

2、A solar heater is installed on the roof of every house, providing warm water for shower.
家家房頂上都裝了供沐浴用的太陽能熱水器。

3、The gravity feed batch solar heater is very simple to use.
重力供水太陽能熱水器的操作方法很簡單。