I bought a used electric grill for $10 from a thrift type shop. It works well to cook hamburgers etc..., there is no temp adjustment. I do cover it with a lid on a windy day helps keep in the heat. I had a different kind and this one is by far the easiest to keep clean.
You dont leave it outside, only when cooking. Bottom, pan catches the grease.
I clean it back at the dock after we use it.
People laugh when they see it, but are surprised when they see it actually cooks.
I found an online pic of what they look like. Fat Zapper - Richard Simmons.