
I am very disappointed and would not have bought if I had known that the lowest thermostat setting is 60f and that there is no backup battery to set the time. If the power is lost, you need to reset the clock and restart the device after the recovery. It seems like simple functions like this should be standard, especially T-Stat. I have this at a shop that is rarely busy and I would see huge fuel savings if the T-Stat unit could be set to 40f. Such defects must be explained by Rinnai or the sellers!

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