How are FHR and Therms used to compare the efficiency of hot water heaters?

A. The first hour rating (FHR) tells you the number of gallons per hour of hot water. Therms relates to the gas consumption of a hot water heater.

When you’re shopping for a hot water heater, compare the energy factor on the Energy Guide label. FHR and Therms are not sufficient to calculate the energy factor. Also remember to compare hot water heaters of equal capacity and FHR.

More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.