Although I'm inclined to doubt it simply because of the inevitable fire hazard and associated nightmare liability issues, one could, I suppose, use the
Weber camping grill. It has legs, albeit designed to set up on the ground somewhere, not next to the clapboards or aluminum siding. Still, if one is determined enough (and has an understanding insurance company), one could certainly try. On the other hand, why not just stick a Hibachi there?
And, though it's not remotely what you asked for, the fun of looking around on the Internet is that you get to find some pretty
amazing sites. This particular one features more contraptions than I could ever have imagined had been invented, much less theorized.
Good luck!
Gypsy Boy
"I am not a glutton--I am an explorer of food." (Erma Bombeck)