Condensate line necessary in crawlspace for heat pump water heater?

Discussion in 'General Plumbing Help' started by wcodyd, Jan 6, 2019.

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  1. Jan 6, 2019 #1

    wcodyd

    wcodyd

    wcodyd

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    Greetings. I’m installing a heat pump water heater in an unsealed crawspace. The crawspace stays generally dry and fairly warm (Arkansas) and has about six foot high ceiling where the unit will be installed. I’m removing an indoor hot water heater and replacing it with this heat pump water heater that will be installed in the crawspace.

    The electrical is done. I’m tapping into cold and hot water lines that run directly over where the heat pump water heater will be installed. Here are my questions:

    Since this is in the crawl space, I’m not planning to run plumbing to the pressure relief valve. I’m thinking this should be okay, right?

    Similarly, since this is in the crawlspace, should I run a line for the condensate drain? I’m thinking it should be okay to leave without a line if there will not me much condensate. I would have to run a pipe about 10’ and drill through a cinderblock and brick wall. I can plumb the pipe if need but am not sure if it’s required.

    I much appreciate your insights.
     
  2. Jan 6, 2019 #2

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

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    here is the deal on the T&P valves not being plumbed to the outside where you can see it
    if it pops off in your basement, you will not know it till you go into your basement and look at it

    I am pretty sure you see the outside of your house every day and would notice the T&P leaking with in 24 hours
    if your T&P leaks in a humid basement for a week you are going to be real pissed off at the mold and smell that will happen
    run the pan drain and the T&P outside like you are required to do
     
  3. Jan 6, 2019 #3

    justin_dewan90

    justin_dewan90

    justin_dewan90

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    Listen to frodo. Run it outside. It's required by code.
     
  4. Jan 6, 2019 #4

    Diehard

    Diehard

    Diehard

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    I would venture to say that the majority of T&P's discharges terminate above a basement floor. (Water heaters and boilers)

    As far as code requirements...well that depends on the code.

    Based on the UPC...
    "Through an air gap into the drainage system or outside of the building..."

    Based on the IPC... EDIT: Correction to distance above the basement floor.
    It shall terminate not more than 6 inches above and not less than two times the discharge pipe diameter above the floor or flood level rim of the waste receptor or to the outdoors.

    The important point, of course is that it would be readily seen.
     
    Last edited: Jan 7, 2019
  5. Jan 6, 2019 #5

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

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    Bro Diehard,,
    mouse.gif
    oh...hell here we go again..
     

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