I want to build a built-in BBQ up against my house. The house is one story so the overhang is approx 9 feet from the ground. The exterior walls are stucco. Is there a minimum clearance from the back of the grill to the stucco walls? Is there an issue with the overhang? I'm am looking at the 5-burner Cal Flame that puts out 97,000 BTUs.