A new type of solar thermal system for homes that can provide heat, hotwater, and electricity is being tested in Boulder, Colo., over the next few months.
未来几个月，科罗拉多州博尔德市将测试一种新型的家用太阳能热系统，该系统可以提供热量、热水和电力。
2
This is one of the more critical elements of the hotwatersystem and we wanted both efficiency and reliability.
这是热水系统中比较关键的元件之一，我们希望能够它既节能又可靠。
3
In this book I'll discuss how to make a solar hotwatersystem "on the cheap".