Birmingham Water Works Board (BWWB) of Birmingham, Ala., has consistently achieved the rating of the number-five water system in the United States...
NSF International’s Plumbing Program recently introduced a new geothermal listing for piping products that should ultimately produce cost-effective and environmentally friendly methods to heat and cool buildings.
According to the U.S. Environmental Protection Agency, geothermal systems average 40% greater efficiency than air-source heat pumps, 48% better than natural gas furnaces and 75% better than oil furnaces.
NSF’s new geothermal listing service tests and certifies Polyethylene (PE) and Polypropylene (PP) piping system products that meet the following requirements:
“This new certification solution provides pipe manufacturers added value and credibility behind the products that bear the NSF-geothermal mark,” said Nasrin Kashefi, general manager, NSF Plumbing Programs. “By having the NSF-geothermal mark prominently displayed on products, manufacturers can demonstrate their commitment to the environment, while reassuring consumers that all testing requirements have been met.”
For meeting all testing requirements, Centennial Plastics PE piping now bears the "NSF-geothermal" certification mark. Centennial Plastics is also certified by NSF for fulfilling the requirements specified in the Uniform Plumbing Code and additional requirements, specified in NSF/ANSI Standard 14: Plastics Piping System Components and Related Materials for use with potable drinking water and NSF/ANSI Standard 61 for health effects.