Nlchicken
Chirping
For our water I have a 100w bulb inside a cinderblocks. I have found the main reason the bulbs blow fast is they get wet. It only takes one stray drop of water and the bulb is gone. You can protect the bulb bulb by placing a glass jar over it or a tin can. Which also helps hold the heat. For mine I had some leftover cement board from another project I cut a piece the size of the cinderblocks and placed it over the openings with the waterer on top. It helps hold the heat and I haven't had a blown bulb since. Have you tried the dollar stores for bulbs? The dollar stores here carry them.