Inefficient Light = Good Heat Source
We use the 40 Watt incandescent light bulb as a heat source in homemade incubators for our "Hatching Chicks in the Classroom" program. http://extension.missouri.edu/news/DisplayStory.aspx?N=2148 (story available on 3/24)Soon they will stop selling the light bulbs, and we are looking for an inexpensive alternative. Any ideas?
The ceramic infrared heater in the 100 watt or less should work for your use. I don’t think they emit any light, but I think that is a part of the education. The kids can see that the heat is going on and off to maintain a temperature. We might set up a second socket in parallel to put an led light in.
Below are links to potential options:
Many years ago, I saw a small resistance element heater that was made to screw into an Edison base, like the ones above. But the resistance coil was exposed on the outside of a ceramic cone. It would glow when it heated. I am sure they are not available any more due to potential burn and shock hazards.
The next best thing is to buy up all of the available incandescent light bulbs for future use.