%0 Conference Paper %A Alissa K Johnson %A James D Lutz %A Michael A McNeil %A Theo Covary %B Southern African Energy Efficiency Convention 2013 %C Johanesburg, South Africa %D 2013 %S Southern African Energy Efficiency Convention 2013 %T An international Survey of Electric Storage Tank Water Heater Efficiency and Standards %2 LBNL-6725e %8 11/2013