I thought it was enough to put my cedar plank over aluminum foil and the burners to the lowest setting... luckily, I had the temperature probe in the salmon, so I noticed the flare up right away and it came out not much darker than in the picture.
Hey !food, wanna share a kitchen disaster in the comments?
I think it was grape seed, but it might have been avocado. I was pretty distracted by some other things at the time.
I've started keeping an infrared thermometer by the stove.