This edition covers all the essential competencies of the Gasfitting component of the current Plumbing and Services Training Package. All chapters have been thoroughly revised and some considerably augmented with all materials compliant with the current standards. The text is written in a clear, accessible style with an abundance of illustrations and photographs. End-of-chapter questions and exercises allow students to reinforce their understanding of the material covered in the text. This edition contains new information on: regulators; ventilation; pipe installation; continuous flow hot water systems; meters; safety devices; LPG, and more.