Editor Reviews:

Product Description:
This unique field guild discusses each important aspect of the medium to high efficiency gas furnaces used in central heating applications, from the combustion process to the venting of the furnace itself. The author Richard Jazwin also provides detailed information on other related topics including: furnace construction, controls and components, ignition systems, sequences of operation, basic service procedures, and electric / electronic troubleshooting and repair.

In addition to providing a basic understanding of furnace design and operation, this in depth manual also details the significant advances made in the furnace industry. "Medium and High Efficiency Gas Furnaces" is an essential tool for those who are interested in becoming successful service technicians.

Rating : - not sugested
as a hvac professional i would not recomend this book if you are looking for any technical advice and direction. if you are looking for a basic knowlege of how a furnace works then this book is for you