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:
    172
    Messages:
    1,940
    Latest: Horizontal Closed Loop Placement docjenser, Feb 18, 2020 at 7:27 AM
    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:
    323
    Latest: Standing Column Well - North Shore Long Island Jeff S, Dec 6, 2019
    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
Replies Views ↓
Last Message
  1. bengee

    Horizontal Slinky vs. Straight Pipe

    bengee, Nov 12, 2010 ... 2
    Replies:
    23
    Views:
    33,873
    TNsteve
    Oct 22, 2018
  2. CT Geo

    Standing Column vs. Closed Loop System

    CT Geo, Apr 6, 2009 ... 2 3 4
    Replies:
    62
    Views:
    19,758
    Nexsen
    Aug 29, 2010
  3. gte

    Looking for information on direct exchange geo

    gte, Jul 31, 2011 ... 2
    Replies:
    31
    Views:
    17,183
    AMI Contracting
    Mar 3, 2013
  4. wigaloi

    Is it possible...

    wigaloi, Aug 13, 2012 ... 2 3 4
    Replies:
    70
    Views:
    14,578
    engineer
    Aug 30, 2016
  5. Calladrilling

    What are your average drilling speeds?

    Calladrilling, Jan 6, 2012 ... 2
    Replies:
    39
    Views:
    12,898
    waterpirate
    Mar 27, 2016
  6. martyg

    Standing column vs. grouted column

    martyg, Feb 19, 2011 ... 2
    Replies:
    24
    Views:
    12,822
    martyg
    Apr 28, 2011
  7. Designer_Mike

    Multiple questions about loop design and AUX heating

    Designer_Mike, Jan 29, 2011 ... 2
    Replies:
    30
    Views:
    11,266
    Mark Custis
    Mar 9, 2013
  8. Krsw

    I need some basics here

    Krsw, Feb 15, 2016 ... 2 3 4
    Replies:
    76
    Views:
    9,252
    docjenser
    Feb 23, 2016
  9. Guest

    Open vs. Closed Loop operating costs?

    Guest, May 7, 2008
    Replies:
    5
    Views:
    9,222
    Guest
    May 12, 2008
  10. GeoDosch

    Ground Loop Warranties

    GeoDosch, Aug 3, 2017 ... 2 3
    Replies:
    46
    Views:
    9,062
    docjenser
    Nov 5, 2017
  11. FHPx3

    Correct Closed Loop material & static pressure

    FHPx3, Jan 25, 2011
    Replies:
    8
    Views:
    8,282
    Looby
    Jan 26, 2011
  12. DavidCraig

    Geothermal HDPE pipe

    DavidCraig, Aug 4, 2012
    Replies:
    8
    Views:
    8,248
    Kogashuko
    Mar 21, 2013
  13. Wiley HVAC

    Loop depth!

    Wiley HVAC, Nov 29, 2011 ... 2
    Replies:
    28
    Views:
    7,908
    docjenser
    Mar 21, 2012
  14. Calladrilling

    Manufactured loop header vs. reverse return

    Calladrilling, Dec 9, 2011 ... 2
    Replies:
    23
    Views:
    7,528
    docjenser
    Dec 20, 2011
  15. SReg

    Oversized/Undersized Ground Loop ?

    SReg, Jul 9, 2014
    Replies:
    17
    Views:
    5,928
    Palace GeoThermal
    Nov 23, 2014
  16. Mark Custis

    A new kind of loop

    Mark Custis, Apr 23, 2010
    Replies:
    11
    Views:
    5,638
    Mark Custis
    Aug 2, 2011
  17. arkie6

    Compression fittings for PE loop pipe?

    arkie6, Jul 29, 2015
    Replies:
    19
    Views:
    5,612
    arkie6
    Aug 3, 2015
  18. Skogen

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

    Skogen, Feb 27, 2013
    Replies:
    3
    Views:
    5,491
    Mark Custis
    Feb 28, 2013
  19. Rogero

    Significant frost heave from horizontal loops

    Rogero, Mar 27, 2017 ... 2
    Replies:
    28
    Views:
    5,270
    moey
    Jan 16, 2018
  20. Donald

    Purge cart reversing

    Donald, Feb 4, 2011
    Replies:
    9
    Views:
    5,219
    AMI Contracting
    Feb 7, 2011
Showing threads 1 to 20 of 118

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