Water Heater draw?

[Scott Forman]

I have to use my bus at a Football game this weekend, and the verdict
is still out as to whether my generator will be operational. The good
news is that I really don't need much 110v this time of year at a
tailgate. I have a small "suitcase" 1KW generator that I plan to use
to get the batt chargers running. If I have nothing else on, will this
1KW output be enough to run my water heater?

Scott Forman
86 PT38
Memphis