My 50-gal Whirlpool "EnergyStar" waterheater has a Unitrol
nat-gas controller. The water temp ranges from lukewarm to
scalding. Whirlpool of course says that's a normal range.
- Is Unitrol a respected control? (Obviously I'm disappointed.)
- Is there any way to minimize the range around 105F?
- Is there any way manually -- without playing with temp dial --
to trigger the Unitrol to fire before temp hits rock bottom?
On Dec 12, 11:12 am, email@example.com wrote:
How old is it? One common problem in older hot water heaters is that
the internal pipe that runs the cold water down to the bottom of the
tank breaks or disintegrates. On some models this tube is plastic.
When that happens then the cold water mixes directly with the hot
coming out. Sometimes it is possible to replace the tube but you have
to have pretty substantual clearance above the tank, otherwise you
have to disconnect it and lay it down to get the new tube in.
The waterheater is 9-months old. I just measured the temp of water
from the bottom tap: 118F. "C+" according to my wife. Last night
the bath water got an "A". The temp ranges too widely for my
If the temp is 118F at the bottom of the tank, at the top it should be
the prescribed 125F approximately.
Thanks again, Herb
P.S. This newsgroup is educational. I rarely learn much about HVAC,
but I'm understanding dear old dad more all the time. He was a hard-
hard-swearing master plumber. I always blamed the WW II and the
while evidently his trade was the main culprit. :-)
Health Dept says *MINIMUM* temp is 125F. Most dishwashers (unless they have
pre-heat) require *MINIMUM* of 140F.
Several years back there was a hotel that was having an American Legion
convention and a lot of people got seriously ill...the cause was traced back
to hot water temps of 105F...hot hot enough to kill bacteria.
You can do what you want, but you might do some homework *BEFORE* you put
yourself and your family at risk.
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