Product review (4 stars): Works
Simple solution for top freezer drain hole freezing up. A bit pricy for an aluminum strip and I probably could have fabricated something similar. Keep in mind this heating probe is designed to work with a defrost heating element located directly above the drain pan hole. The piece of aluminum attaches to the heating element as it simply conducts heat from the heater to the hole so during the defrost cycle  the probe heats up and keeps the water condensate from freezing. I made sure the probe did not touch the pan or drain pipe as I am concerned with the amount of heat conducted could melt the drain pipe. Not sure about the metal drain insert as I believe it is used for a specific whirlpool model and I did not use it or the insulation wrap. .