Posted 2/15/2021 08:53 (#8833689 - in reply to #8832610) Subject: RE: Suggestions for keeping stock tanks thawed?
Wisconsin
Freeze miser, $30 on walwart.com, or the other freeze valve. Will keep the water running to keep the valve 37 F. The heat in the water is cheaper than any heat you'll add to it, and that includes firewood.
You can use the ground heat also, by using pipes of air or water.