On my 2005 Georgetown, the H/W breaker is 15A and is the leftmost breaker when looking at the panel. My panel in on the front side of the bed support box.
Also, Herk's photo shows where the switch on the water heater is located. When winterizing, be sure to turn this OFF and put the cotter key in place to keep it off...
Hope this helps.
Life is a journey, not a destination.
2005 Georgetown 359ts
Bill & Virginia, Kentucky
Nights camped in 2011...78 , 2012...73,
Nights camped in 2013...123, 2014 ...101