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What is a thermostatic valve?

Posted by 4mom23girls (My Page) on
Wed, Oct 5, 11 at 22:15

Sorry, it's probably a no-brainer answer, but what is this thermostatic valve? A lot of people here on GW are bringing this term up and I don't understand what it is and why people want it.

We are building a house and trying to figure out the ideal set-up for our master shower. Right now, it's configured for one fixed and one hand held fixture. Should it be a slide bar or not? We live in So. Calif and the house will have a tankless water heater. We are also using PEX piping. What is this thermostatic and should we really get this?


Follow-Up Postings:

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RE: What is a thermostatic valve?

In its simplest form a thermostatic valve is literally a valve with a built in thermostat function. Both a hot & cold water line are attached to the valve and the valve will continually mix the two water sources to maintain a preset temperatute on the output.

In addition to maintaining a constant output temperture a shower thermostatic valve is preset to insure the output cannot exceed the code maximum of 120degF.

Thermostatic valves are now a code requirement.


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RE: What is a thermostatic valve?

We are also building & are set on a vintage look exposed shower system that does not have a Thermostatic valves build in the master shower. To piggy back on the OP's question:

Can exposed shower system be complemented by some aftermarket universal valve?

Before Thermostatic valves to mix the water to specific water temp, what did we humans do?


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RE: What is a thermostatic valve?

"Before Thermostatic valves to mix the water to specific water temp, what did we humans do? "
We set the water heater thermostat low enough that we didn't scald the kids.


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RE: What is a thermostatic valve?

"We set the water heater thermostat low enough that we didn't scald the kids. "

We actually watched the kids to make sure they did not get scalded.

Fancy that.

Actual parenting.


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