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  • Water Heater Heat Pump?

    Can anyone educate me a little on what I think is called water heater heat pumps? I think the coil dumps heat into the water heater. But I'm pretty ignorant in HVAC so all info-positives & negatives-are appreciated. Websites or books too. Thanks.

    J.C.

  • #2
    Re: Water Heater Heat Pump?

    i will be putting in something like this for radiant heat in a couple weeks ,never did one before
    Charlie

    My seek the peek fundraiser page
    http://observatory.mountwashington.o...nal&fr_id=1040


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    • #3
      Re: Water Heater Heat Pump?

      http://www.apollohydroheat.com/

      This is a very popular system up here. The biggest disadvantange is we need a 80 gal gas at a minimum since it's pulling double duty. We run pex from the W/H to the coil.
      Buy cheap, buy twice.

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      • #4
        Re: Water Heater Heat Pump? Heat pump water heater?

        Thanks Gear. I've worked on Apollo's before. BTU's important. The kind I'm trying to learn about work with the heat pump dumps the heat from the heat pump coil into the water heater. This increases the heat pump cooling efficiency while heating the water in the water heater. (I think!) But it is slow to heat the water so that has to be factored in.

        Companies like Nyletherm, E-tech. Any experience with any of these systems?

        J.C.

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        • #5
          Re: Water Heater Heat Pump?

          Guess I misunderstood. I'm not familar with this system. I am curious about this but can't understand how the heat pump will reject heat into a 140 deg tank.
          Buy cheap, buy twice.

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          • #6
            Re: Water Heater Heat Pump?

            Are these the same kind of things the dairies use as preheaters before their regular WH tanks? I don't know that they use heat pumps per se, but they cool their compressors by running the water through them, then running it through 100 or 120 gallon tanks. It preheats to about 120 degrees, but is a very long recovery. They don't care, cause they usually dump about 3 times a day anyway.
            sigpic3:00, I mean 5:00, and work is done. Time to crack a cold one.

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            • #7
              Re: Water Heater Heat Pump?

              Thought I'd resurrect this as Rheem has one now.

              Anyone install them yet?

              Thanks.

              http://www.rheem.com/Products/tank_water_heaters/hpwh/

              J.C.

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              • #8
                Re: Water Heater Heat Pump?

                JC, In principal this process will work but talk about a Rube Goldberg of a system...

                So when your water heater goes out who do you call? The Plumber or the HVAC guy

                This gem will need a good size space to dump it's waste cooling load (1000 cubic feet) 10'x10'x10'

                Better make sure that foam filter is cleaned weekly or you can bet this thing will turn into a popcicle

                Just a few thoughts...

                Bill

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                • #9
                  Re: Water Heater Heat Pump?

                  it maybe efficient in the summer but my furnace will be providing the heat for it to steal in the winter. to make it really efficient put in a gas water heater. breid.........

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