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Hot water boiler pressure relief valve

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HAB
HAB Member Posts: 11
in THE MAIN WALL
Can a hot water heater T&P valve be used on a hot water boiler? The boiler currently has pressure relief only.
Thanks

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  • JUGHNE
    JUGHNE Member Posts: 11,063
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    NO, water heater tank relief valves have too high of a pressure setting, maybe 150 PSI. at that pressure your boiler could launch itself as a missile thru all vertical layers of your house.

    30 PSI is the max for most residential boilers. Pressure relief only. Temperature is controlled/monitored by 2 or more safety devices internal to the boiler system.
  • HAB
    HAB Member Posts: 11
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    Thanks. I will get a 30psi pressure relief to match the origianal one.
    damitdave
  • j a_2
    j a_2 Member Posts: 1,801
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    Don't just match what was there, go to the manual, put in the one it calls for, if you have any question at all in your mind....does it have a low water cutoff...
    damitdave
  • damitdave
    damitdave Member Posts: 2
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    in need of low water cutoff and pressure releaf valve ?????

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