First published in 1982,Plumbing: Mechanical Services Book 1, together with its' sister volumeBook 2, is well-established as an essential guide for all students who require a sound understanding of plumbing principles and processes. Updated and revised to meet the new NVQ plumbing requirements, the third edition includes new material on gas work, oil supply boilers, electrical work and above ground sanitary pipework and appliances. The two-volume set uses both traditional and practical applications of the subject to enable the reader to obtain the skills required to become a successful plumber. This book is a key course text for NVQ mechanical engineering services: plumbing level 2 (C&G 6009) and C&G plumbing: Craft (6030). It is also suitable for NVQ level 2 gas sevices installation and maintenance (C&G 6006), mechanical engineering services: heating and ventilating (C&G 6008) and C&G heating and ventilating fitting: craft.