Doug Kirk, a former plumbing contractor with more than 40 years in the trade, is now the Director of Green Plumbing Curriculum for GreenPlumbers Training and Accreditation, a business unit of The IAPMO Group. The mission is to provide plumbers and contractors with the practical knowledge they need to implement "green" products, services and techniques. Visit GreenPlumbers Training and Accreditation on the web at www.greenplumberstraining.org.
While Chapter 5 of the Uniform Plumbing Code is titled “Water Heaters,” it also addresses combustion air, chimneys, different types of gas vent materials, exhaust gas venting, and more.
