Heater Power Backup Options?

[Flatlandreefer]

Over the weekend I was out of town and we had a blizzard at home that knocked out power for around 12 hours. I have the backup system for my ecotech power head so flow is not an issue but there isnt anything to keep temp from dropping if I am not around. Fortunately I knew somebody with a generator that came over to my house and hooked it up to the tank and kept it running until 1:30 am when the power came back on but the way it sounds temp dropped off pretty rapidly because I have a shallow tank that has a lot of surface area for its size. I am wanting to eliminate this issue in the future but I don't want to go the generator route as I only have an IM25 tank and I want the backup to be automated if possible so it automatically kicks in if I am out of town. Are there any options to automatically back up 150 watts of heater for somewhere around 12 hours of use???

 

[jason2459]

Power inverter with automatic transfer, battery tender if not built in, and one or more deep cycle batteries

If you need it for a pump make sure the inverter delivers pure sine wave not modified.