Introductory technical guidance for professional engineers and others interested in solar powered central water heating systems designed to serve multi-building developments such as college campuses, condominiums, military bases, etc. Because this technology has been implemented more broadly in Europe than the U.S., the projects described hear are generally European. Here are the projects discussed:1. FPC 1: GNEIS MOOS2. FPC-2: ANDRITZ GRAZ3. FPC-3:...