blackoaktammy
Songster
Ohhh thats on my agenda to figure out a solution...do you have a link to these bowls you use? I'd much rather try that before working electric heaters etc.
https://www.tractorsupply.com/tsc/product/fortex-round-feeder-1-2-gal-capacity-black
You can get them at TSC or Bowmans. There are a few different sizes, too.