What are you guys using for water heaters in a barrel? I have 15 gallon barrel waterers (2 coops) with horizontal nipples and looking to back them near each other and run extension cord to them from the old pool outlet I have outside. I can turn them on when I think the night will be cold enough to bother with it.
This is one of my 15 gallon jugs
This is one of my 15 gallon jugs
