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Problems with a thermostatic mixing valve in a steam shower

CDHE
CDHE Member Posts: 13
in Plumbing

I've installed a Kingston Brass shower valve in a client's steam shower. He leaves it set at 100 degrees, and thermometer readings show that it hold within a couple of degrees of that setting.

Our problem is that after running the steamer, shower temperature is up around 112-115. Hoping for some insight why this might be happening.

Thanks in advance!

Comments

  • HomerJSmith
    HomerJSmith Member Posts: 2,628
    edited November 29

    Might be water from the steam generator is back flowing into the shower line or maybe the two pipes are in close contact. Steam carries a lot of BTUs. would a check valve on the cold water supply to the steam generator help? I have always insulated the steam line to the steam head.

  • CDHE
    CDHE Member Posts: 13

    Thanks. Not insulated, but also not close. I think I will give the check valve a try.

  • HomerJSmith
    HomerJSmith Member Posts: 2,628

    A spring loaded check valve.

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