Cooking over an open flame at home Is it doable to cook over the flame of a cooking gas stove at home. Is it dangerous? Couldn't it be even better as an open fire over coal or wood, since gas is cleaner?
It is similar to cooking over a propane grill. Gas grills often have stone or ceramic bricks in them to help retain heat, but it is the burning gas that provides it.  Cooking over a gas stove should be similar.

That said, I wouldn't grill meat or fish directly over the flame; it may work, but the cleanup may not be worth it.  If you want to char a pepper or some bread and get the 'grill' feel, that should work fine.  I see chefs do it all the time on TV, and it looks easy enough and doesn't make a mess.