I found what I hope to be an alternative to using incandescent bulbs for keeping the well house from freezing. I had been using two bulb fixtures in case one burned out. I got tired of having to check to see if the bulbs have burned out not to mention, I've run out of incandescent bulbs (FJB). After several hours of searching I found this:
https://www.ebay.com/itm/294808409338?
It has a 0 to 100 degree thermostat and is 400 watts. I think 400w is a bit much for this area but with the thermostat control I think it'll use less power than two 60w bulbs burning 24/7. I've put a remote temp sensor from the fridg in there that shows 24hr hi/lo temp to monitor the temp.
I've set the thermostat at 40 degrees and it should get cold enough tonight to see how it works.
Thank you to our all-knowing rulers for getting rid of those nasty incandescent bulbs that I could buy 4 for $2.00. FJB