Originally Posted by LTC Steve
I am happy to report that the coiled rope light system seems to be working for keeping the eggs from freezing. Today, however will be the real test. I am unable to go and retrieve eggs until later this afternoon and the temps are not planning on going any higher than 2 degrees above zero.
We will see how well this system works then. Yesterday one egg was alone in the box most of the day. It was cold, but the shell was not cracked.
The design seems proven. The variables are still ambient temperature, supplied heat (watts), and durability.
17 watt heating pad seems sufficient for daytime temperatures in the low teens, which rarely occurs (no recollection ever of single digit daytime highs) in central New Jersey.
Would you know how many watts you are using for each box?