Depending on what part of the country that you reside in, gas-burning heating systems can be either an absolute necessity or a rarity. For those that maintain, service and install gas heating systems or those just looking for a more in-depth source of accurate information, this modular training program focuses on furnaces and boilers that burn natural gas or LP. The combustion of gas to generate heat can be dangerous and should be thoroughly understood by HVAC technicians. This program covers many facets of gas heating including: combustion, system components and controls, heating sequences, installation, and troubleshooting. Through advancements in technology, modern heating systems have become far more efficient than their predecessors. Integrated circuit boards and electronic ignition systems have replaced the mechanical controls and manually lit pilots of older systems. Today, technicians may encounter furnaces or boilers that are older than they are, complex high-efficient systems, or anything in between. It is critical that they have a working knowledge of all these systems. This manual provides students and practicing technicians with the information and knowledge necessary to safely work on systems that incorporate gas combustion to provide heat. The information to service, maintain, and install these systems is also presented in an easy-to-understand format. The manual is full of color images and diagrams and includes end-of-chapter worksheets. Gas Heating was written to be a primary text that focuses specifically on gas-burning heating systems which can be used as a stand-alone text or a supplement to your current text book.

The 4th edition of Plumbing continues to provide the definitive single volume text on plumbing, heating and gas installation work, ideal for students working towards their Diploma in plumbing or NVQ/SVQ at levels 2 and 3. Highly illustrated and easy to read and understand, it tackles plumbing topic by topic, in double page spreads with text, full colour illustrations, and clear photographs, enabling the reader to grasp the essentials quickly and easily. This approach ensures it also provides a concise reference for the trained plumber. Special features include: concise text many clear, full colour illustrations around 140 photographs topics focussed on the needs of NVQ/SVQ levels 2 and 3 additional topics beyond levels 2 and 3 a self-assessment section a problem-solving section This new edition has been thoroughly updated to take account of changes to the Building Regulations, including changes to the following approved documents: Part F: Ventilation; Part G: Sanitation, hot water safety and water efficiency; Part H: Drainage and waste disposal; Part L: Conservation of fuel and power and Part P: Electrical safety. A significant new section on energy conservation & sustainability has been added, and additional related material introduced where relevant. The extensive coverage with new, full colour illustrations to enhance legibility and understanding, and the emphasis on safety in the work place ensure this remains the definitive single volume for both student and trained plumbers.

A detailed method is presented for determining temperature and flow minimums of heated gas necessary for ice prevention of hollow propellers with evaluation of surface temperatures, gas pressures, tip nozzle areas, flow passages, and heat source input.