Well when and if the power did go out I would go into life support mode. Meaning just the heater and return pump would be running. I have a generator that is more than capable of running the tank and a few other appliances. What I tend to do, is make sure the car is full of gas and I hook my inverter up to the battery and every few hours will use the car at idle to run just to pump and heater. And then use the generator as a backup. Saying that, I don't have a garage and from where I park on the driveway to my tank is about 20 ft, it kind of works out.
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