Geothermal Loops

It is all about the loop!

  1. Open Loop

    Open loop systems utilizing water wells and/or surface water. Pump and dump, pump and re-inject.
    Discussions:
    79
    Messages:
    915
    Latest: Monodrive XT vs. Cycle Stop Valve Valveman, Oct 7, 2019
    RSS

  2. Vertical and Horizontal Loops

    Closed vertical and horizontal loops
    Discussions:
    167
    Messages:
    1,884
    Latest: Vertical Loop Design Considerations docjenser, Aug 23, 2019
    RSS

  3. Surface Water Loops

    Closed loops installed in ponds, lakes, rivers and oceans.
    Discussions:
    22
    Messages:
    285
    Latest: New Pond Geothermal System Design RogerH, Apr 26, 2018
    RSS

  4. Standing Column Well (SCW)

    Discussions:
    19
    Messages:
    322
    Latest: Standing Column Pumping Energy Douglas Bittinger, Sep 5, 2017
    RSS

  5. Hybrid Systems

    Loop systems that use two or more conventional loop types or solar systems, cooling towers, thermal storage systems, etc.
    Discussions:
    9
    Messages:
    93
    Latest: Closed Loop with Temperature Dump? mtrentw, Feb 27, 2018
    RSS
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Title Start Date
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Last Message
  1. bengee

    Horizontal Slinky vs. Straight Pipe

    bengee, Nov 12, 2010 ... 2
    Replies:
    23
    Views:
    32,050
    TNsteve
    Oct 22, 2018
  2. CT Geo

    Standing Column vs. Closed Loop System

    CT Geo, Apr 6, 2009 ... 2 3 4
    Replies:
    62
    Views:
    19,191
    Nexsen
    Aug 29, 2010
  3. gte

    Looking for information on direct exchange geo

    gte, Jul 31, 2011 ... 2
    Replies:
    31
    Views:
    16,450
    AMI Contracting
    Mar 3, 2013
  4. wigaloi

    Is it possible...

    wigaloi, Aug 13, 2012 ... 2 3 4
    Replies:
    70
    Views:
    14,032
    engineer
    Aug 30, 2016
  5. martyg

    Standing column vs. grouted column

    martyg, Feb 19, 2011 ... 2
    Replies:
    24
    Views:
    12,664
    martyg
    Apr 28, 2011
  6. Calladrilling

    What are your average drilling speeds?

    Calladrilling, Jan 6, 2012 ... 2
    Replies:
    39
    Views:
    12,328
    waterpirate
    Mar 27, 2016
  7. Designer_Mike

    Multiple questions about loop design and AUX heating

    Designer_Mike, Jan 29, 2011 ... 2
    Replies:
    30
    Views:
    11,083
    Mark Custis
    Mar 9, 2013
  8. Guest

    Open vs. Closed Loop operating costs?

    Guest, May 7, 2008
    Replies:
    5
    Views:
    8,909
    Guest
    May 12, 2008
  9. Krsw

    I need some basics here

    Krsw, Feb 15, 2016 ... 2 3 4
    Replies:
    76
    Views:
    8,751
    docjenser
    Feb 23, 2016
  10. GeoDosch

    Ground Loop Warranties

    GeoDosch, Aug 3, 2017 ... 2 3
    Replies:
    46
    Views:
    8,033
    docjenser
    Nov 5, 2017
  11. FHPx3

    Correct Closed Loop material & static pressure

    FHPx3, Jan 25, 2011
    Replies:
    8
    Views:
    8,023
    Looby
    Jan 26, 2011
  12. DavidCraig

    Geothermal HDPE pipe

    DavidCraig, Aug 4, 2012
    Replies:
    8
    Views:
    7,830
    Kogashuko
    Mar 21, 2013
  13. Wiley HVAC

    Loop depth!

    Wiley HVAC, Nov 29, 2011 ... 2
    Replies:
    28
    Views:
    7,612
    docjenser
    Mar 21, 2012
  14. Calladrilling

    Manufactured loop header vs. reverse return

    Calladrilling, Dec 9, 2011 ... 2
    Replies:
    23
    Views:
    7,308
    docjenser
    Dec 20, 2011
  15. Mark Custis

    A new kind of loop

    Mark Custis, Apr 23, 2010
    Replies:
    11
    Views:
    5,550
    Mark Custis
    Aug 2, 2011
  16. SReg

    Oversized/Undersized Ground Loop ?

    SReg, Jul 9, 2014
    Replies:
    17
    Views:
    5,468
    Palace GeoThermal
    Nov 23, 2014
  17. arkie6

    Compression fittings for PE loop pipe?

    arkie6, Jul 29, 2015
    Replies:
    19
    Views:
    5,280
    arkie6
    Aug 3, 2015
  18. Donald

    Purge cart reversing

    Donald, Feb 4, 2011
    Replies:
    9
    Views:
    5,156
    AMI Contracting
    Feb 7, 2011
  19. Skogen

    Sizing the ground loop (Ground loop oversized??!)

    Skogen, Feb 27, 2013
    Replies:
    3
    Views:
    5,128
    Mark Custis
    Feb 28, 2013
  20. wjgreen

    Increasing Existing Vertical Loop Length by Adding a Pond Loop?

    wjgreen, May 31, 2010
    Replies:
    10
    Views:
    4,908
    AMI Contracting
    Jun 5, 2010
Showing threads 1 to 20 of 114

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