FEATURES INSIDE THIS ISSUE


Volume 39, Number 4, April 2011


Solar Thermal Freeze Protection Since a large portion of the country sees freezing tem-


peratures during the year, protecting the fluid inside the collectors from freezing is an important design consider- ation.


Story on page 34 # !" Specifying Solar Applications


Dog Day Afternoons To accommodate the 200-plus person per day traffic,


a state-of-the-art, off-grid restroom was designed, built and is now in full working order.


Story on page 38


INDUSTRY NEWS & OTHER DEPARTMENTS


Inside Rheem’s Rebranding Efforts Rheem Manufacturing Company demonstrates the


future of integrated air and water technology, a unveils its new brand identity and numerous redesigned products.


Story on page 42


8 | CISPI and NSF International announce new certification for no- hub couplings


8 | A. O. Smith launches water heaters tour


Reclaiming the Costs of Bathroom Products Investing in quality leads to greater ROI, more


satisfied customers. Story on page 48


COLUMNS 6


14 18 22 26 30


8 | ANSI expands ICC-ES PMG/ WaterSense program accreditation to include high-efficiency shower- heads


11 | Sloan FLUSHMATE turns 25


12 | OBITUARY: John Swaffield, Professor Emeritus, Heriott-Watt University


12 | Noritz help Japan earthquake, tsunami survivors


Editor’s Letter: PE& print optimism springs eternal


Designer’s Guide: Acknowledgment, death, earthquakes and tsunamis Code Classroom: PEX Piping Systems FPE Corner: Is Bigger Better?


Solar Solutions: Overheat-cooling with thermosyphon loop Energy Efficiency: Solar is HOT! Sometimes too hot


Page 4/Plumbing Engineer


32 | THE LEAD FREE REPORT 52-54 | NEW PRODUCTS 55 | INDUSTRY NEWS CONTINUED 56 | CLASSIFIEDS 57 | AD INDEX 58 | PRODUCT APPLICATION


April 2011


 ' &!! ' $!%$   '   !


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