Active collectors use pumps, or any active mechanical device, to circulate water or air. The active system collects, stores and distributes the heat that they convert from solar energy. Two major types of active collectors are the indirect and direct.

The indrect active solar system has a series of collectors. The direct active solar system does NOT have a heat exchanger. In a direct active solar system for hot water, there is no heat exchanger and the hot water would flow directly to faucets.

active and passive

By: Jokara Walters