I put an "antiscald" gadget on my shower so I would not get scalded
if my wife flushed the toilet while I was in the shower. I took it
out because it was less trouble to get out of the way while the cold
water pressure was low while the toilet tank refilled. What I used
was similar to this one on the Ace Hardware web site:
They seem to have others for baths, but I did not see one for
I see someone has already suggested turning down the water heater. For
what purpose do you need to maintain water that is hot enough to
scald? You mention a kitchen faucet, which suggests either dish- or
handwashing to me. Of course it's nice to have a near-boiling water
spigot for coffee and instant soup, but those are usually add-ons, not
For those two things, I would get one of the additional flash type hot water
spigots that are designed to dispense near-boiling hot water. I wouldn't be
heating all of my water to the higher temp just for the occasional cup of
soup. Or even the very frequent cup of coffee...
The traditional reason to have 140 degree water was for more effective clothes
and dish washing. Temperature makes a big difference in both cases.
However modern dishwashers mostly come with built in water heaters with
thermostats that wait until the water reaches 150 degrees. This is even better
for sanitary constraints than leaving the water heater on 140. If you have
such a dishwasher then you're best off lowering the hot water heater at least
somewhat, if not to 120. You'll reduce your hot water heating bill too.
As far as clothes washing I guess people just decided it wasn't worth the
physical risk for whiter whites.
You don't need 140 degree water to have hot showers. At that temperature
you'll be mixing in plenty of cold water just to avoid leaving the shower with
first degree burns. I like hot showers myself and wouldn't be surprised if 120
were too low, I don't know, but I'm pretty sure 140 isn't necessary for
anyone's shower tastes.
PS: My hot water heater is at 140, but then my dishwasher doesn't heat to 150
so that's my excuse.
Actually, my water comes out at 138F. Which is exactly the perfect temp to
run all of my plumbing needs with the number of people in the house. I do
not consider anything a real scalding risk until it gets a little higher in
temp. I just wanted something that would keep the water at 120F or so, at
just that ONE place.
Personally, I do not like setting the water heater down on 120F. I bought
the house, I bought the heater, and damn it, I'm going to take my hot
On Tue, 18 Nov 2003 01:53:27 -0700, "John E. Jones"
I can sympathize with *that*. :-)
However, after I posted, I looked up some references to "scalding." It
seemed highly unlikely (to me) that one could be scalded by water at
120F, which is summer air temperature in some dismal locations.
However, evidently this *is* possible with skin exposure over several
minutes. A shorter time at 140F. Tapwater scalding is primarily a
hazard for young children/babies and the elderly.
As to the original question, searching on
turned up a number of references to plumbing gadgets/valves suitable
for your purpose. Just don't fall asleep in the shower. :-)
Hey John, I just finished installing a new bath tub unit with
It uses a combo of pressure balance and an inhibitor....I played with it for
a while, and found out what it really does, and what its all about.
It is a track unit inside the taps that you set the water to the temp. you
want, luke warm, and it would not let you turn it up any higher. So if you
want a cup of hot water you would be shit out of luck.
It used this lock, and the pressure balance to keep the water the right
temp, and not let you burn yourself......
I removed the unit from the tap, I would rather have the control.
Don't bother, not worth your time.
Oh if you watned to check it out, you can see the tap at
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