I had my electric water heater go out on the morning that Hurricane Matthew (October, 2016) was to hit that evening. I called Home Depot and they gave me an 800# to call. I called it at 7:40 AM and by 12:30PM on the same day a new one was delivered, installed and my old one taken away. Not sure about a gas one but I'd call them to see if they do gas ones.
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