2006 National Tradewinds ?

[jhalldiver]

I have no Manuals. I have a what is it used for question.
Under my inverter, mounted to the wall is single 120v receptacle with a power cord coming out of the bottom of the box. It is obvious that the cord plugs into the receptacle. It is currently unplugged can anybody tell me what it is used for.
Thanks

[Rook]

I think that would be your engine oil/coolant heater plug.....plug it in when it's very cold.....helps in starting the engine. There should be an "on/off" switch in the driver's cockpit.

[bdpreece]

Block Heater. On my 04 Tropi Cal there was also a switch on the dash that controlled whether the plug was live or not.

[jhalldiver]

Thanks guys. I will note that.