Thanks guys! Great feed back. My math seems about the same as yours. I need to know more about the house boat. I’m not even sure how it’s powered, probably outboard. I do have a Honda 2000 generator. Might have to bring that along.
The machine actually runs on 24 volts. The power supply says input 110 volts 1-1.5 amps, output 24 volts 3.75 amps. It also says 90 watts next to the output cable.