The second edition of Domestic Central Heating Wiring Systems and Controls is available. The A-Z guide to central heating wiring systems provides a reference manual for hundreds of heating and control equipment. The book offers coverage of wiring and technical specifications. In this edition, the book provides more coverage of combination boilers, recently developed control features, and boiler efficiency ratings. Also included are numerous, easy-to-understand wiring diagrams with explanatory notes, the company says. Brief component descriptions are provided, along with updated contact details for most major manufacturers.

Elsevier, Attn: Customer Service, 11830 Westline Industrial Dr., St. Louis, MO 63146; 800-545-2522; 800-568-5136 (fax); www.books.elsevier.com.

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