Good luck! But keep checking the nipples to make sure they aren't froze up. I've seen many people say that the water on the inside was not frozen due to the heater, or tape, but that the nipples themselves were frozen. I've not seen one with vertical nipples which made it to zero. about 15...
There are also people who use a heated dog dish, one of those plastic ones with the higher sides and put a ice cream bucket in it, I guess that works well.
Is it this one?
It may be fine for you since it is in the coop and as it freezes they will pick a hole and keep pecking in that same hole so that may keep it open. If you are home during the day you can go out and check on it. you can wait and see what happens.
It says on the waterer that...
Where are you at and how cold does it get? This is a neat idea, but i've found where i'm at (minnestoa) the water doesn't freeze with a bird bath de-icer and horizontal nipples (at least down to -20), but the vertical nipples like those always freeze above zero. let us know how it goes. If it...
I don't know if it is necessary or not. Probably not. However, when it warms up a little I will take the pump out and see how it goes. Since it is working for now, I'll leave it in.
Very interesting thought.
I hope others will comment to share their experiences for others to learn from.
A couple of my birds with larger waddles do get their whole faces in there, the edges of their waddles looked white from frostbite in the last cold snap. So I took someone else's...