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  1. #14
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    Quote Originally Posted by acmanko View Post
    There is only one difference in an air to air HP and a geothermal HP and that is the medium used to reject heat, which is water. Other than that, they are the same puppy.
    not always.

    You water source guys really do have a one track mind.
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


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  2. #15
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    Quote Originally Posted by darctangent View Post
    not always.

    You water source guys really do have a one track mind.
    Of course they are. For geothermal, you need to know pumps, water temp in and water temp out. The refrigerant changes state depending on temperature. it could care less if the temps are from water or air.

  3. #16
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    Quote Originally Posted by acmanko View Post
    Of course they are. For geothermal, you need to know pumps, water temp in and water temp out. The refrigerant changes state depending on temperature. it could care less if the temps are from water or air.
    I do geo, I use no water (unless I'm heating domestic or hydronic water)

    Like I said, one track mind.

    Those other manufacturers like to deny the existence of any technology outside of their own.

    there are pros and cons to using water. I do without just fine. IGSHPA and friends have got you guys brainwashed.
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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  4. #17
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    Quote Originally Posted by darctangent View Post
    I do geo, I use no water (unless I'm heating domestic or hydronic water)

    Like I said, one track mind.

    Those other manufacturers like to deny the existence of any technology outside of their own.

    there are pros and cons to using water. I do without just fine. IGSHPA and friends have got you guys brainwashed.
    So what fluid do you use for the loop?

  5. #18
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    Quote Originally Posted by acmanko View Post
    So what fluid do you use for the loop?

    fluid? not exactly.

    R-22

    r-407c

    r-410a

    it's called "DX" or "direct exchange"

    Horizontal loop fields, vertical and diagonal bore holes.
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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  6. #19
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    Quote Originally Posted by darctangent View Post
    fluid? not exactly.

    R-22

    r-407c

    r-410a

    it's called "DX" or "direct exchange"

    Horizontal loop fields, vertical and diagonal bore holes.
    so what's the majic fluid that goes into the Horizontal loop fields, vertical and diagonal bore holes.

    its called DX or Direct expansion.

  7. #20
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    Quote Originally Posted by acmanko View Post
    so what's the majic fluid that goes into the Horizontal loop fields, vertical and diagonal bore holes.

    its called DX or Direct expansion.
    same answer.

    sorry, but you aren't listening.

    r-22

    r-407c

    r-410a
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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  8. #21
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    If the light isn't going on by now, I'm going to start worrying.

    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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  9. #22
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    Quote Originally Posted by acmanko View Post

    its called DX or Direct expansion.
    no, it's called DX or direct exchange.

    But, hey we all make mistakes.

    you're thinking of the other end of the system.

    Like I said, everybody thinks they already know what's out there.

    Mouth open, ears closed,

    instead of the other way around.
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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  10. #23
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    Quote Originally Posted by darctangent View Post
    same answer.

    sorry, but you aren't listening.

    r-22

    r-407c

    r-410a
    I can't think of a loop that has refrigerant in it. refrigerant is in the AC system , the loop that makes it geothermal has water in it.

  11. #24
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    Quote Originally Posted by acmanko View Post
    I can't think of a loop that has refrigerant in it. refrigerant is in the AC system , the loop that makes it geothermal has water in it.
    What do you call the refrigerant cycle? Isn't that a loop with a pump in the middle?
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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  12. #25
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    Quote Originally Posted by darctangent View Post
    What do you call the refrigerant cycle? Isn't that a loop with a pump in the middle?
    Yes, but that has nothing to do with a unit being geothermal. You can get heat from the air for a regular Heat Pump or heat from the ground with a Geothermal Heat Pump. Water is whats used in a geothermal system to transfer the heat from the ground via a pump and a tube in a tube condenser.

  13. #26
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    Quote Originally Posted by acmanko View Post
    Yes, but that has nothing to do with a unit being geothermal. You can get heat from the air for a regular Heat Pump or heat from the ground with a Geothermal Heat Pump. Water is whats used in a geothermal system to transfer the heat from the ground via a pump and a tube in a tube condenser.
    Oh lord.

    ok, envision this:

    you've got a conventional Heat Pump, but it's got a leak in the condenser coil.

    Oh, darnit, what to do?

    what to do, what to do?

    Whatever could we do?

    hmmm....

    How about this?

    we dig a trench in the ground and lay tubing in the trench, then we fill in the trench. we then connect the tubing to the condenser where it used to connect to the old condenser coil.

    now, the ground is the condenser. see?

    refrigerant travels through the "loop" or the "condenser coil" only now it's in the ground.

    no water.

    It's a little simplified, but that's how it all started.

    How is that NOT "geothermal" ?
    What lies behind us and what lies before us are small matters compared to what lies within us.


    Two pressures, four temperatures = SUCCESS!


    Boulder Heating Contractor


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