If you can help this last one. Ill be good to go.

How much heat is required to evaporate 230 pounds of water per hour undwe a preasure of 111.3 psig, if the water enters the boiler at 190 degrees f?

Answer is 237,643btuh

I took this problem from trane ac manual.

It doesn't show how to answer the question.

Sent from my LG-M257 using Tapatalk