This recently updated manual is an invaluable tool for the keeping up with vital knowledge concerning all gas hearth systems. An excellent stand-alone reference book for all gas hearth product planners, technicians and installers. In addition, the manual serves as the reference material for the NFI Certified Gas Specialist Exam. Topics covered in the text are:


Nature of Fuel Gases
Combustion Principles
Standards
Valves
Ignition Systems
Orifices
Burners
Thermostats and Remote Control
Safety Lockout and Limit Switches
Draft and Ventilation Principles
Venting Installation Guidelines
Installation Regulations
Service guidelines
Fuel Delivery
Heat Protection
Troubleshooting and appendices on basic electricity, house pressure tests and tools and instruments