Well, right now we have been fighting with our well for 2 weeks (during the wettest summer on record). We have water in the morning for showers and even a load of laundry if we shut the well pump off, but it runs out by 11:00 or so no matter how much we use or don't use. The well guy is useless. He won't even answer our calls lately
So, I would vote for putting the hot water in the fridge.
So, I would vote for putting the hot water in the fridge.