If I could aford to I would to both a genny and the batterie pack. That way you can swich from the battery pack to the genny just plug the batteries in to the genny and you can even turn it off at night for a bit if it is not the winter. and having a heated tank in your house will help to keep it warm in the event of an ice storm out east again.
well and west if we get one
well if I can ever get the mony I will a batterie pack an have gust my pump on it.