Why does my new water heater run out of hot water faster than my old one?

water heater

We replaced an older 40 gallon water heater that was starting to leak with the same size new water heater. Now it seems that I will run out of hot water faster with the new one. For example, while taking a normal length, normal temperature shower I will run out of hot water when I didn’t with the old one. Why is this happening? Would turning up the temperature help? It seems like the hot water is plenty hot enough when set at the 130 degree mark. Any ideas?

Admin @ www.HeatingForHome.com

[SMP_MESSAGE]