In addition....

Let's see if I got this straight.
Q What is BBQ? A Slow cooking over coal or wood, basting throughout.
Q How do you clean a BBQ? A Turn the heat up for 10 minutes a scrap with a metal scraper.

How do you turn up the heat for 10 minutes? Oh, gas!

A good grate is like a cast iron skillet, a good non stick layer of carbon. Never clean with high heat.