Sounds familiar
You know, that sounds familiar...
I have a similar thing at my house. Set it and forget it for hours and hours, if I want. I don't have to twiddle with a temperature dial or an upper grill, or anything. I can do meat in it, of course, but it's just as good for bread, or pizza, or vegetables. And it's got a very generous capacity. I've even done entire meals in it at the same time.
Like your friend's, it has no lump or coal to light, or anything, and nothing to shovel out after a cook. I never have to remove any of the parts to add fuel. In fact, I just clean the grates now and then. Ok, hardly ever.
It's called an oven...