Mystery Outlet

[winddrinker]

Hopefully I can explain the location of this outlet so I can find out what it operates. I own a Reflection 29RS. I removed the wall in the basement storage area to check out the water heater, plumbing, and items located in this location. While checking all of this "stuff" I saw an outlet and a electrical cord. The cord was not pluged in. Any idea what this might be? This outlet is located near the back side of the main breaker panel. Really difficult to see and reach but it must have some purpose. And the plug/electrical cord laying next to this outlet must have some purpose also. I have tried to take a picture of these items in question but no good results.
Thanks
Jim

[JCR GD]

I assume that model has a "fireplace." Does it work?

[Cate&Rob]

winddrinker - does your water heater work on shore power? I expect that cord is the electrical power for the water heater.

Rob