Can't see heating up water that is just going to get cold again overnight.
It is a lifestyle thing of course, but we don't have any need for hot water except in the morning. All day-before dishes saved till morning and one 6 gal tank of hot water is good for shave, showers, wash dishes.
As soon as the 6 gal is hot (LP), the WH is turned off. Coffee water is from a kettle or stove top. Works for us.
(DW is spring-loaded to wash anything to do with eating as soon as possible after every meal, so it took some convincing to get her to think like a guy when RVing. Perhaps it was easier to change her mind because now I am the one who has to wash all those dishes once a day, while she does the dogs. )
Anyway, solar to heat water late in the day seems silly to me, so there has to be something else to use with that extra solar in the afternoon. Run a blender to make fancy drinks?
