Reply To: Why is Yad Soledes Bo so Cold?

“Have you boiled water to 110 degrees”
No, and neither has anyone else. It’s physically impossible to boil water at 110 degrees F. It boils at 100 Celsius.

“110 degrees (tested it with a food thermometer) and actually put your hand in?”
I looked up average shower temperature and got 105, which makes sense because it’s going to be higher than human body temperature. I highly doubt an extra 5 degrees to the average would make it unbearable.

Either way, the Reb Moshe you brought seems to answer the question.