I believe the yes means something like you need different temps for different forms of ice? other than that i have no idea
thinking back to my classes, ice buildup can be affected by droplet size, wing shape, and speed. i believe the only way to find a temp applicable to a certain aircraft is testing. not what anyone wants to hear, but an unfortunate fact. luckily, a small section of wing can be built with your proposed system and possibly tested by nasa. (not sure how much that would cost though)