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<br /> www.contractormag.com<br /> A Penton Publication AUGUST 2011<br /> A newly-built house ready<br /> to be connected to the<br /> local geothermal utility.<br /> City of Wyandotte,<br /> Mich., creates a<br /> geothermal utility<br /> By Steve Spaulding<br /> Of CONTRACTOR’s sTAff<br /> WYANDOTTE, MICH. — The principle behind geothermal<br /> heating and cooling is a simple one: dig down toward the<br /> bedrock almost anywhere in the world and you reach a<br /> stable temperature zone that<br /> is somewhere between 52°F<br /> and 55°F year-round. By us-<br /> ing water circulated in a deep<br /> enough ground well as an en-<br /> ergy transfer medium, you get<br /> the ∆T between well tempera-<br /> ture and surface temperature<br /> — cooling power on hot days,<br /> heating power<a title="August 2011 page 1" href="http://viewer.zmags.com/publication/d42fcc6f?page=1"> www.contractormag.com A Penton Publication </a> <a title="August 2011 page 2" href="http://viewer.zmags.com/publication/d42fcc6f?page=2"> For information circle 201Best Jet-Set Yet! ener</a> <a title="August 2011 page 3" href="http://viewer.zmags.com/publication/d42fcc6f?page=3"> — Industry News — Denver Zoo's new exhibit util</a> <a title="August 2011 page 4" href="http://viewer.zmags.com/publication/d42fcc6f?page=4"> For information circle 202This Changes Everything</a> <a title="August 2011 page 5" href="http://viewer.zmags.com/publication/d42fcc6f?page=5"> — Industry News — Linc Services designs, instal</a> <a title="August 2011 page 6" href="http://viewer.zmags.com/publication/d42fcc6f?page=6"> Ñ Industry News Ñ Ore. Building Codes Div. wri</a> <a title="August 2011 page 7" href="http://viewer.zmags.com/publication/d42fcc6f?page=7"> For information circle 204The new degree of comfo</a> <a title="August 2011 page 8" href="http://viewer.zmags.com/publication/d42fcc6f?page=8"> — Industry News — Japanese firms back on track</a> <a title="August 2011 page 9" href="http://viewer.zmags.com/publication/d42fcc6f?page=9"> — Industry News — Denver Zoo exhibit utilizes </a> <a title="August 2011 page 10" href="http://viewer.zmags.com/publication/d42fcc6f?page=10"> — Industry News — Overcoming copper thieves, m</a> <a title="August 2011 page 11" href="http://viewer.zmags.com/publication/d42fcc6f?page=11"> The Fastest Way to 250 Cuts. Cut. Release. Repea</a> <a title="August 2011 page 12" href="http://viewer.zmags.com/publication/d42fcc6f?page=12"> — Industry News — Linc designs, installs for C</a> <a title="August 2011 page 13" href="http://viewer.zmags.com/publication/d42fcc6f?page=13"> 14 PARTS VS. 4. WHICH WOULD YOU RATHER INSTALL? </a> <a title="August 2011 page 14" href="http://viewer.zmags.com/publication/d42fcc6f?page=14"> Ñ Management by Al Schwartz Ñ PLUMBING CONTRACTO</a> <a title="August 2011 page 15" href="http://viewer.zmags.com/publication/d42fcc6f?page=15"> 6am is no time to lose D ÀJKW ZLWK OLWWOH ZD</a> <a title="August 2011 page 16" href="http://viewer.zmags.com/publication/d42fcc6f?page=16"> — Education — BY CANDACE ROULO OF CONTR</a> <a title="August 2011 page 17" href="http://viewer.zmags.com/publication/d42fcc6f?page=17"> �����™ � �����™ ������� �� �������������� Good</a> <a title="August 2011 page 18" href="http://viewer.zmags.com/publication/d42fcc6f?page=18"> — Education — SEI's Solar Hot Water workshop pa</a> <a title="August 2011 page 19" href="http://viewer.zmags.com/publication/d42fcc6f?page=19"> For information circle 214BORN READY. TOUGH, STR</a> <a title="August 2011 page 20" href="http://viewer.zmags.com/publication/d42fcc6f?page=20"> © 2011 Uponor, Inc. Are you ready to</a> <a title="August 2011 page 21" href="http://viewer.zmags.com/publication/d42fcc6f?page=21"> — Education — ergy Practitioners educati</a> <a title="August 2011 page 22" href="http://viewer.zmags.com/publication/d42fcc6f?page=22"> — Plumbing by Dave Yates — PLUMBING CONTRACTOR </a> <a title="August 2011 page 23" href="http://viewer.zmags.com/publication/d42fcc6f?page=23"> CUT LABOR COSTS BY UP TO 1% Compared to tradition</a> <a title="August 2011 page 24" href="http://viewer.zmags.com/publication/d42fcc6f?page=24"> — Hydronics by Mark Eatherton — HYDRONIC HEATING</a> <a title="August 2011 page 25" href="http://viewer.zmags.com/publication/d42fcc6f?page=25"> Having the right tools is key to any job. That's </a> <a title="August 2011 page 26" href="http://viewer.zmags.com/publication/d42fcc6f?page=26"> — Technology by William & Patti Feldman — compUTe</a> <a title="August 2011 page 27" href="http://viewer.zmags.com/publication/d42fcc6f?page=27"> INSTALL CONFIDENCE. INSTALL RINNAI. Every Rinna</a> <a title="August 2011 page 28" href="http://viewer.zmags.com/publication/d42fcc6f?page=28"> </a> <a title="August 2011 page 29" href="http://viewer.zmags.com/publication/d42fcc6f?page=29"> For information circle 223 l/S^ ft 6<y/U ftir</a> <a title="August 2011 page 30" href="http://viewer.zmags.com/publication/d42fcc6f?page=30"> For information circle 224 — On Law by Mike Call</a> <a title="August 2011 page 31" href="http://viewer.zmags.com/publication/d42fcc6f?page=31"> You've got it. Everything you need: all the p</a> <a title="August 2011 page 32" href="http://viewer.zmags.com/publication/d42fcc6f?page=32"> — Finances by Irv Blackman — TAX AUTHORITY T</a> <a title="August 2011 page 33" href="http://viewer.zmags.com/publication/d42fcc6f?page=33"> ��� ����� ������������� ������� �� �������������</a> <a title="August 2011 page 34" href="http://viewer.zmags.com/publication/d42fcc6f?page=34"> Ñ Project Management by H. Kent Craig Ñ PROJECT M</a> <a title="August 2011 page 35" href="http://viewer.zmags.com/publication/d42fcc6f?page=35"> Get a GRIP GRINNELL G GRINNELL R RAPID I I</a> <a title="August 2011 page 36" href="http://viewer.zmags.com/publication/d42fcc6f?page=36"> — Marketing by Matt Michel — MARKETING AUTHORITY </a> <a title="August 2011 page 37" href="http://viewer.zmags.com/publication/d42fcc6f?page=37"> For the fifth straight year, Bradford White is th</a> <a title="August 2011 page 38" href="http://viewer.zmags.com/publication/d42fcc6f?page=38"> — Best Practices by Dennis Sowards — INDUSTRY CON</a> <a title="August 2011 page 39" href="http://viewer.zmags.com/publication/d42fcc6f?page=39"> Energize your sales. Out</a> <a title="August 2011 page 40" href="http://viewer.zmags.com/publication/d42fcc6f?page=40"> THE “KITCHEN SINK” IS JUST THE BEGINNING. </a> <a title="August 2011 page 41" href="http://viewer.zmags.com/publication/d42fcc6f?page=41"> — Best Practices by Josh Sooy — SPECIAL TO CONTR</a> <a title="August 2011 page 42" href="http://viewer.zmags.com/publication/d42fcc6f?page=42"> Smart choices. Electric Water Feeder </a> <a title="August 2011 page 43" href="http://viewer.zmags.com/publication/d42fcc6f?page=43"> — Industry News — Test house shows practicalit</a> <a title="August 2011 page 44" href="http://viewer.zmags.com/publication/d42fcc6f?page=44"> — Columnists — Commission equipment properly —</a> <a title="August 2011 page 45" href="http://viewer.zmags.com/publication/d42fcc6f?page=45"> 12" Wide Trench Drain Just Got a Whole Lot Easier</a> <a title="August 2011 page 46" href="http://viewer.zmags.com/publication/d42fcc6f?page=46"> — Columnists — I'm not as smart as they though</a> <a title="August 2011 page 47" href="http://viewer.zmags.com/publication/d42fcc6f?page=47"> A PICTURE'S W ORTH A THOUSAND CL OGS. S</a> <a title="August 2011 page 48" href="http://viewer.zmags.com/publication/d42fcc6f?page=48"> — Columnist — Lean works for tenant improvemen</a> <a title="August 2011 page 49" href="http://viewer.zmags.com/publication/d42fcc6f?page=49"> BeautyBeast meets </a> <a title="August 2011 page 50" href="http://viewer.zmags.com/publication/d42fcc6f?page=50"> — Green Products — FoR MoRE InFoRMaTIon </a> <a title="August 2011 page 51" href="http://viewer.zmags.com/publication/d42fcc6f?page=51"> — Products — editor's choice THE PRO PAK 53 PR</a> <a title="August 2011 page 52" href="http://viewer.zmags.com/publication/d42fcc6f?page=52"> — Products — ▲ THE WAVELAND FAUCET CO</a> <a title="August 2011 page 53" href="http://viewer.zmags.com/publication/d42fcc6f?page=53"> CLASSIFIEDS PRODUCTS FOR SALE </a> <a title="August 2011 page 54" href="http://viewer.zmags.com/publication/d42fcc6f?page=54"> — Editorial by Bob Mader — EDITOR-IN-CHIEF </a> <a title="August 2011 page 55" href="http://viewer.zmags.com/publication/d42fcc6f?page=55"> Think of it as a 50-story hose. Get a convenien</a> <a title="August 2011 page 56" href="http://viewer.zmags.com/publication/d42fcc6f?page=56"> When our engineers go to lunch, they </a>