Quote:
Originally Posted by srswans
So, what is recommended for the gas instant HWH? Do I need to shut off gas supply too? And electric supply?
I keep forgetting to ask the plumber.
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Most tankless water heaters have a built-in vacation mode. You may want to read the user manual to see what this setting provides. The instant, or tankless, water heater runs on demand and while you are away, the demand is zero.