Last power outage here I went and bought a 700 watt inverter from canadian tire and 100 foot extension cord to get from the driveway to my tank. Total cost was about $130 and when hooked to my car it can run my return pump and heater. Of course the power came on 10 minutes after I hooked it up and I haven't needed it since
. It is nice to know it's in the basement if I ever needed again though
.