Read this thread. Reminded my lady that we got some cedar planks as a gift. She did salmon over charcoal at home. Excellent.

Then she tried the same with fresh trout on a gas grill at our mountain cabin. Alas, the burner rot in the old gas grill became really apparent when planks that need even heat didn't get it. Planks burned. She used bad words.

So now I am on the hook for a new gas grill.