Originally Posted by
jpsmith1cm
It seems that "across the pond" the "K" designation is used to express a temperature difference, which would be appropriate for a superheat or Delta T type situation.
The issue would arise in that 20 K superheat would be 20 Celsius degrees.
1 degree C is 1.8 degrees F.
Normally, one cannot convert directly like this meaning that, say, 10 degrees C superheat doesn't automatically convert to 18 degrees F superheat.
In this case, however, I think that you can properly convert the differential of 20 K to approximately 36 degrees superheat, which is about what you've arrived at.