Does your water heater get shut down in that scenario as well
?
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I could but haven’t setup a rule to do that.
I thought about that at some point. It would be an issue if it were to get emptied out, but otherwise, I don’t know that it is a problem… Would love to hear otherwise!
I've always heard the warning....shutting off the water supply for some duration requires turning off the water heater's heat.
I guess the risk is mostly about the "pressure trap" that is created by it being a "closed system" once the supply line is shut off. Of course there is a relief valve on the tank.
In all reality this is probably more a concern when closing up and leaving a property for more than a few weeks.
As an aside: Knowing about toilet tank valve assembly failures (once common due to plastic breakdown in municipal chlorinated water supplies) and learning from the insurance industry that such catastrophic plumbing failures are common...it slays me that the code is so strict on some things but not strict enough on the precautionary measures that would avert such catastrophes. Makes you wonder if we were actually "safer" back in the day when a lot of stuff was copper. Never remember "shutting off the house supply line" being such a big deal in the old days unless you were talking Winter vacancy of a property.
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I think water heaters are not what they used to be... 
Nowadays they have aquastats and dip sticks and low water cutoff switches and all kinds of stuff.
I'd imagine that the problem would be air locking the system if you do have a leak somewhere after the water is shut off. I don't think the coils would overheat or melt or anything, but it makes sense that you don't want the unit powered up if there's no water in it.
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I came across this old thread while looking for something else.
I got a Bluetti AC180 for 600 bucks.
Plus, four HF 100 watt panels for 85 bucks each (Insider Club).
Some wire and connectors, maybe 150 or so.
It runs the side by side fridge overnight.
I just tried a couple of the panels yesterday-got 175 watts or so.
Still waiting on parts for the other two.
The house is surrounded by trees-very bad for solar.
It's still a kick to charge up the battery by the sun...when it's out, lol.
Bluetti is not as customizable as EcoFlow; it does seem to work though.
