Jim Davis is the senior carbon monoxide/combustion trainer and consultant for the National Comfort Institute (NCI). He has been teaching classes since 1983 and has been part of NCI for the past seven years. Davis has written national protocols for CO testing and operating guidelines for proper combustion and mechanical operation of fuel-burning appliances. For additional information call 800-633-7058, or go to www.nationalcomfortinstitute.com.
This article is part two of a two-part series on carbon monoxide (CO) safety and residential equipment and venting. In this article, we continue the discussion of CO safety and cover several additional issues not mentioned in Part I. This includes certain types of installation problems and operational defects that develop after the system has been put into service.