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Brad Zogg is vice president of Schebler Chimney Systems, Bettendorf, Iowa, a leading manufacturer of prefabricated stainless steel commercial and industrial chimney’s, heavy-wall engineered stacks, and food service grease ducts. The company also provides design engineering support. Zogg can be contacted at bzogg@schebler.com. For more information, visit www.scheblerchimney.com.
Chlorinated polyvinyl chloride (CPVC) first made its way into the world of venting systems in the residential market. Recently, CPVC has been used to vent Category IV high-efficiency boilers. While it can cost up to 20 percent less than stainless steel, those specifying venting systems should consider other differences that may impact boiler efficiency and present potential safety hazards.