Paso 7: fuentes
http://www.engineeringtoolbox.com/Hot-Water-consumption-Person-d_91.html
http://www.Water-Heater-repair-Guide.com/waterheatertemperature.html
http://waterheatertimer.org/kWh-Temp.html
http://www.engineeringtoolbox.com/Hot-Water-consumption-Person-d_91.html
http://www.Water-Heater-repair-Guide.com/waterheatertemperature.html
http://waterheatertimer.org/kWh-Temp.html