I want share my water heater design!!! And i want to see yours too!!! Since i live in New-Brunswick, Canada, a water heater was a must-have and believe it or not, water is starting to freeze already during the nights!! I used recycled pieces of wood and i bought the light socket, the flower pot and the pie pan. The whole setup cost me around 15$ CDN!!!! Here is my water heater: I decided to put a 60W lightbulb under a flower pot. I did a test with a 100W bulb but the flower pot was really hot!! I might go back to the 100W bulb if it get really cold. I built the frame with wood and shape it to do a box for my flower pot. I put a 2x4 to hold the light socket and the flower pot itself. Since my waterer is bigger than the bottom part of my flower pot, i glued a pie pan of the same size of my waterer on top of my flower pot to make sure that it wont fall off. And if there is a bit of water moving around, it will go in the pan. Even with the pie pan, i wanted to make sure that the waterer wont fall so i put 2 ''screwing loops'' (i dont know the real name of that piece) on each side of the frame to hook up 2 bungees cords to hold down the waterer. By doing so, i make sure that the coop stay dry and safe from an electrical failure. If for some reason the water fall down, it will be deflect by the flower pot and the light wont be affect. Suggestions, questions, tips and comments are welcome!!!! Please share your design too!!! It might help other peoples that want to have their water warm for their flocks!!!!