Originally Posted by Unfathomable Bastid
Yeah, I believe a minimum of 3" probe is necessary. 4" is my preferred length. The question remains as to whether the install should be below or above the grate.
Personally, I think it should be above the grate as that's likely to have a more correct temp reading, and would also avoid dripping foods.
Yeah definitely above the grate as close to the level of the food area as possible.