It is all about the loop! Wed, 14 Oct 2026 10:47:15 +0000 Wed, 14 Oct 2026 10:47:15 +0000 GeoExchange® Forum https://www.geoexchange.org/forum/forums/geothermal-loops.178/ Fri, 10 Nov 2023 15:02:02 +0000 https://www.geoexchange.org/forum/threads/please-help-me-design-a-2-unit-pond-loop.8401/ https://www.geoexchange.org/forum/threads/please-help-me-design-a-2-unit-pond-loop.8401/ invalid@example.com (Mudyser) Mudyser

I was planning on a closed loop system with Coils...

Please Help Me Design a 2 unit Pond Loop]]> Sun, 04 Jun 2023 22:15:59 +0000 https://www.geoexchange.org/forum/threads/pex-a-b-or-c.8388/ https://www.geoexchange.org/forum/threads/pex-a-b-or-c.8388/ invalid@example.com (Wolfgang) Wolfgang For heating applications, they recommend Oxygen barrier PEX tubing. Is this necessary for ground loops?]]> 1 Wed, 04 Jan 2023 21:08:52 +0000 https://www.geoexchange.org/forum/threads/loops.8355/ https://www.geoexchange.org/forum/threads/loops.8355/ invalid@example.com (Superchief) Superchief
There is an unusual condition that makes this particularly attractive - I will already have a large excavator on site and I am already trenching and/or filling about 12000ft2 of area to depths up to...

loops]]> 3 Tue, 01 Nov 2022 23:52:54 +0000 https://www.geoexchange.org/forum/threads/underground-temp-sensors-for-loops.8350/ https://www.geoexchange.org/forum/threads/underground-temp-sensors-for-loops.8350/ invalid@example.com (mntnvew) mntnvew
Any suggestions on the sensors themselves? Manufacture/type?

I assume I will need to have them "wired" and thus installed now with the trenches opened.

Thoughts?]]> 2 Wed, 12 Oct 2022 20:37:11 +0000 https://www.geoexchange.org/forum/threads/supply-return-header.8346/ https://www.geoexchange.org/forum/threads/supply-return-header.8346/ invalid@example.com (mntnvew) mntnvew
What do folks use for transitioning to/from the 3/4” loops from/to the 2” supply and return lines?

If I cannot get a local contractor to do the heat fusion, I’ll purchase the tool. Definitely know I have to use this method for connecting all the pipe, especially since all connections will be buried.]]> 7 Mon, 26 Sep 2022 00:04:11 +0000 https://www.geoexchange.org/forum/threads/assemble-fuse-loops-then-put-into-trenches.8347/ https://www.geoexchange.org/forum/threads/assemble-fuse-loops-then-put-into-trenches.8347/ invalid@example.com (mntnvew) mntnvew
No one is getting into any of these for obvious safety reasons.

Does assembling and fusing the 3/4” into my 7-loop manifold above ground and then putting it into the trenches sound like a plausible idea? The supply and return will be roughly 140’ each way of 2”.

The other option is digging a much wider spot for the manifold and make it stepped so it is safe to get into but that is MORE digging!

Appreciate input!]]> Sun, 18 Sep 2022 19:43:35 +0000 https://www.geoexchange.org/forum/threads/how-do-you-know.8345/ https://www.geoexchange.org/forum/threads/how-do-you-know.8345/ invalid@example.com (Neil Heuer) Neil Heuer Mon, 10 Aug 2020 16:12:04 +0000 https://www.geoexchange.org/forum/threads/loop-penetration-into-house-height-question.8006/ https://www.geoexchange.org/forum/threads/loop-penetration-into-house-height-question.8006/ invalid@example.com (Mike B) Mike B Thanks,]]> 9 Sun, 26 Apr 2020 17:50:51 +0000 https://www.geoexchange.org/forum/threads/well-drillers-have-question-on-domestic-water-well.8121/ https://www.geoexchange.org/forum/threads/well-drillers-have-question-on-domestic-water-well.8121/ invalid@example.com (fastline) fastline
I initially started pumping the well...

Well drillers? Have question on domestic water well!]]> 2 Mon, 13 Apr 2020 22:42:48 +0000 https://www.geoexchange.org/forum/threads/can-a-garage-be-built-over-a-segment-of-a-geothermal-loop.6760/ https://www.geoexchange.org/forum/threads/can-a-garage-be-built-over-a-segment-of-a-geothermal-loop.6760/ invalid@example.com (Geostew227) Geostew227
Can a garage be built over a segment of a geothermal loop?]]> 5 Sat, 22 Feb 2020 06:40:55 +0000 https://www.geoexchange.org/forum/threads/loop-balancing.8103/ https://www.geoexchange.org/forum/threads/loop-balancing.8103/ invalid@example.com (Danny313) Danny313 How to deal with this at the header?
I'm aware of the need to balance.]]> 4 Sun, 16 Feb 2020 05:20:36 +0000 https://www.geoexchange.org/forum/threads/horizontal-tubing-size-length-and-wall-penetration.8016/ https://www.geoexchange.org/forum/threads/horizontal-tubing-size-length-and-wall-penetration.8016/ invalid@example.com (Cary Budach) Cary Budach
horizontal tubing size/length and wall penetration]]> 12 Sat, 08 Feb 2020 21:18:48 +0000 https://www.geoexchange.org/forum/threads/closed-loop-penetration-through-foundation-wall-question.8079/ https://www.geoexchange.org/forum/threads/closed-loop-penetration-through-foundation-wall-question.8079/ invalid@example.com (Danny313) Danny313 That would also provide for additional pipe entries at later date by opening up additional "ports" in system, placing pipe through and then tightening port around pipe?
My thoughts go to Uponor who I thought had something similar but can't seem to locate again.
I like this idea as it provides one local...

Closed loop penetration through foundation wall question?]]> 2 Fri, 07 Feb 2020 23:55:40 +0000 https://www.geoexchange.org/forum/threads/best-antifreeze.8096/ https://www.geoexchange.org/forum/threads/best-antifreeze.8096/ invalid@example.com (Gary Wilson) Gary Wilson 4 Wed, 29 Jan 2020 03:47:06 +0000 https://www.geoexchange.org/forum/threads/any-of-you-well-drillers-still-hanging-out-here.8088/ https://www.geoexchange.org/forum/threads/any-of-you-well-drillers-still-hanging-out-here.8088/ invalid@example.com (fastline) fastline
Any of you well drillers still hanging out here?]]> 2 Tue, 19 Nov 2019 02:50:25 +0000 https://www.geoexchange.org/forum/threads/horizontal-loop-under-gravel-driveway.8036/ https://www.geoexchange.org/forum/threads/horizontal-loop-under-gravel-driveway.8036/ invalid@example.com (Coz) Coz
Been reading the forums for a while here now actually, and have one question I can't seem to get a good answer on.

We are currently designing out a site plan with our architect, and one of both our goals (and that of the HOA) is to not clear out more than the minimum number for trees for construction and safety. Lot is in a pine forest.

To this end, it was suggested that a horizontal loop could be placed under the gravel driveway, prior to finishing the driveway. Possibly 5...

Horizontal Loop Under Gravel Driveway]]> 5 Wed, 12 Jun 2019 03:59:40 +0000 https://www.geoexchange.org/forum/threads/vertical-geothermal-wells-for-energy-storage-and-removal.7953/ https://www.geoexchange.org/forum/threads/vertical-geothermal-wells-for-energy-storage-and-removal.7953/ invalid@example.com (JoergK.) JoergK.
I am new to this forum and like to introduce myself.

My name is Joerg and my location is southern Alberta, Canada. I follow the geothermal issue, heat pumps etc. for probably +40 years. Our economy is energy, gas, oil, coal and heating cost where relatively low but that has changed. Not necessarily the cost for the actual energy, but all the ransom money one has to pay to be on the grid. What I mean is paying 1/3 for actual energy purchased and 2/3 for hook-up and line fees....

Vertical Geothermal Wells for Energy Storage and Removal]]> 14 Tue, 28 May 2019 17:29:54 +0000 https://www.geoexchange.org/forum/threads/anyone-have-experience-with-the-honeywell-rth6500-thermostat.7957/ https://www.geoexchange.org/forum/threads/anyone-have-experience-with-the-honeywell-rth6500-thermostat.7957/ invalid@example.com (kk4ej) kk4ej
Anyone have experience with these? It has multiple stages for a heat pump, but like most manuals, its not very good at anything past the basics.

Input appreciated.]]> Mon, 15 Apr 2019 15:46:41 +0000 https://www.geoexchange.org/forum/threads/horizontal-closed-loop-what-if-question.7940/ https://www.geoexchange.org/forum/threads/horizontal-closed-loop-what-if-question.7940/ invalid@example.com (kk4ej) kk4ej
Lets assume a system has a loop design of 4 x 3/4" x 700 ft loops. Other than the obvious answer of expense of pipe and digging, would adding a additional loop ( making 5 in total ) provide a better "reserve" to use versus using longer pipes, such as a 4 x 3/4" x 800ft. It would reduce the flow in each pipe and provide a much larger area for exchange...

In the software, I...

Horizontal closed loop what if question]]> 17 Thu, 03 Jan 2019 14:28:25 +0000 https://www.geoexchange.org/forum/threads/2-existing-water-wells-on-property-would-it-make-sense-to-even-consider-closed-loop.7791/ https://www.geoexchange.org/forum/threads/2-existing-water-wells-on-property-would-it-make-sense-to-even-consider-closed-loop.7791/ invalid@example.com (Raventai) Raventai
we have a 2K sq' mobil home on 2.5 acres in north central Florida, the standard 20 year old air sourced 3 ton package heat pump has given up the ghost. we had quite unpleasant $300/month electric bills during the summer and with the death of that unit we have an opportunity to try do something about it.

I have been aware of...

2 existing water wells on property, would It make sense to even consider closed loop?]]> 4