I really need to make one of those bucket waterers. I need to get the drill bit size in order to do so though. I can probably pick it up at the local hardware store. But then of course I'd also run into the problem with it freezing. I'm assuming these aquarium heaters need electricity to work? I already have enough going on with cords outside.
Yeah the heaters are electric, but at 50w you aren't using much power. The heaters are like $15 at Country Max. I ordered a bunch of nipples because they were cheap so I have some extra.