I think the debate for "unplugging" the hot water tank during the day is much light the argument for lowering the house temp during the day and at night. There are a whole lot of variables. If the hot water tank is sufficiently insulated, not having it run during the day won't make a damn bit of difference. If it is very poorly insulated, chances are you would save money by not reheating the same water over and over.
The reality is that it is somewhere in between, probably closer to sufficiently insulated than not. So, I am guessing it makes very little difference. Your neighbor should just put a timer on it rather than going through the effort of turning it on and off by hand, assuming it is electric that is. -- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: [EMAIL PROTECTED] Tel: (412) 268-9081
