Trying to see which requirements to go by when wiring a heater for a baptismal pool. It's going to have a 240 outlet that the heater plugs into. The heater is wall mount and has a cord on it with controls etc. I know it has to be GFCI protected. If it can be considered the same as a spa or hot tub, the cord can be up to 15 ft. long according to 680.42 (2). I guess the outlet would still have to be at least 6 ft. from the inside walls and any switch or disconnect would have to be at least 5 ft. from the inside walls. Cord on heater would have to be rated "hard usage". Any more thoughts on this?