"George E. Cawthon" wrote in
:

Huh? you have two thermostats, set the upper one to a few
degrees lower than the bottom thermostat. "Hot water" and
"A" setting. My electric thermostat was set in degrees. In
any case set the bottom higher than the top. 50 gallon
tank shouldn't change much for a 20 or 30 minute shower, my
old electric sure didn't. The new Gas is a PITA, way too
much difference in temp between thermostat on and off.
Electric was less than 5 degrees.


Have'em se that way now. Top on "hot" and bottom on "a" After 5 or so
mins the temp drop is still there.

It also seems the upper element is operating. As a matter of fact I hear
a sound coming from the area of BOTH heating elements at times.

I wonder now if I wired that sucker wrong. I have a 2 wire supply, but 3
wires on the heater. I did hook the 2 wires together as indicated in the
diagram. The only thing that confuses me is that they have an "L1" and
"L2" listed... not a black or white wire.... I have no clue what either
is so I simply hooked up the black wire on the supply to the black wire
on the heater, plus whatever extra wire color was called for.

at any rate
I am still stumped.