I"m curious to see how that form works for this application. Would be interesting to see how much less heat would be required to keep from icing up.
This sounds like a perfect commercial for "flex seal" lol.
LOL... In the picture, the big one looks like a giant coconut cake. I was also wondering if it would help keep the water from freezing. I won't be able to judge since we don't have many days below freezing here. When it does drop below, it's only for a few hours.