On 6/17/2015 10:35 AM, trader_4 wrote:

Also, the talk about lave rocks got me thinking. If you have a
grill where the heat is uneven, I wonder if using rocks would even
it out?

I use grill bricks - perforated ceramic bricks - and they help even
things out quite a lot. In one corner of the grill, I arrange just a
few with wide gaps between them, in order to have a hotter spot for
quick browning/finishing.

http://www.menards.com/main/outdoors...17-c-10141.htm