This totally intrigues me. You've caught my attention. How/What is that?
If you go looking at gas grills, they still have the standard burners, but slowly for a couple of years now, they are adding infra red burners to them. The rotisserie is an infra red burner, but that one is vertical. On my grill, it replaced my side burner with an infra red. It still runs on propane, but that burner can get many times hotter and quicker than the base burners. That's how the good steak houses make their steaks to perfection.
So after about 3-5 minutes, my infra red is read for it's steak. I basically cook my steaks about two minutes a side turning 60 degrees one minute in per side to give it those awesome grill lines. If the steak has a nice layer of fat on it, with tongs, I'll balance the fat side on the grill to char it for about one-two minutes more. Then it is done. Nice outside, and still purple middle.
Good tip here for doneness of steak.
Stand up with your arms dangling, hands loose. Touch the part of skin between your thumb and pointer finger. That's rare.
Stretch your fingers as far as they can go, touch the same area of skin, that's medium rare.
Make a fist and touch the same area. That's medium. Anything more than that and the steak is ruined and it's a waste of good meat.