%0 Report %K Energy efficiency %K Building energy efficiency codes %K Energy Factor %K Hot water %K Hot water distribution systems %K Plumbing codes %K SEGWHAI %K Super Efficient Gas Water Heating Appliance Initiative %K Water heaters %A James D Lutz %C Berkeley %D 2008 %G eng %I Lawrence Berkeley National Laboratory %P 83 %T Water Heaters and Hot Water Distribution Systems %2 LBNL-4877E %8 05/2008