Didn’t read any other previous posts, but we’ve used the nipple waters and the heat plate (same brands in your first post). They worked well. Heat plate was great and easy. About the lowest energy use you can get. We’ve used it 3x already. Constant temps, although hottest in center, and cooler at edges, which is useful for chicks. Brooder is Dark at night bc the heat plate does not light up.
The nipple waters worked great, but one developed a drip towards the end of the 2 batch if chicks. I think there is just a bit of dirt in there, and we’ve tried to remove it, but haven’t taken it apart. Chicks drank well using them.
Good luck.