Here is the link for the Youtube heater:
I used a 40 watt for my peeps small waterer and a 50 watt for the 1 gallon waterer. They work great. I found it was cheaper to buy a cheap clamp light and take off the cone, than buy the pieces. Each one only cost me $6.30.
Carmel
I made two today after watching a video on Youtube about how to make one using old flower pots. Very easy too. I already have them working. Took only about 30 min. to make both.
Carmel