Question for you guys. I have a 240v 6-30r receptacle with a 30 amp breaker in and Eaton arc fault 200amp service panel. I was going to install a new air 5000W heater that comes with the 6-30p on it already when spaced everything out. I am now looking at the King eco2S 2405. King says that these can be wired for a plug instead of hard wiring . They call for 10/2 in their printed material. I was wondering if I could use sjoow 10/3 instead For the fact that it would coil better? I don’t plan on permanently installing this as I would like to take it down in the summer months. The king actually draws less amps (20) so I know I’m good on the breaker. Thanks for any input.