Matt, my condolences on your loss. My hat off to your wife for her quick thinking!
What exactly is it that you are trying to accomplish with cooking the rock? My lr was in pretty bad shape prior to the switch in Feb/2007; algea growing wild, and I'm sure tons of phosphate.
What I did: 1) got two 40g rubbermaid totes, 2 power heads, 2 heaters, and the two old "SeaClones" that had been laying around from when I first started into SW.
2) armed with wire brush, rocks in bucket w/tank water & totes ready w/tank water as well to receive the rock. I scrubbed the lr in the bucket, then rinsed them quickly under running tap water, and into the totes the rock went. Once all the rocks had been scrubbed - rinsed, and placed in the totes they were initially left uncovered a few days with the skimmers, powerheads,heaters running. Once a week I performed partial water change with RO/DI water. If I recall correctly this was done for a couple of months until the new tank arrived, and the MR family came over to make the switch.
My objective was to get rid of the algea, and as much of the phosphate build up of the past 6 years of tap water use. As of today, I have no algea. I'm not sure where the phosphate levels are since I have not been testing for them. I will try to do that later today. I have a small amount of red slime at the rear of the tank, but I believe that is due to lack of water movement in that particular area of the sandbed. And yes I will be addressing that shortly.
Not sure if this is of any help to you since I don't know what it is that you are cooking your LR for.:duh: