Video explainer, demo design, October 2026
Sunset Park, BrooklynTesting a single-pipe ambient loop before anyone digs
Jason Masters, President of Gaiergy Corp, tests a single-pipe ambient temperature loop in Sunset Park, Brooklyn. He uses the Gaiergy Pipe Heat Explorer.
This is a demo design. It is not a client project.
Video
Watch the test
The tool checks every heat pump at every 5-minute step for 10 years. It finds the hours that break the loop, then tests a fix.
What the test found
It fails. One change makes it pass.
Results of the demo run, as shown in the video. Each one has its source under it.
FAIL, 482 hHours out of range in year 1, the worst of 10 years. On January 6 at 10 AM, water leaves one heat pump at 30.2 °F, below freezing estimate.Source: Gaiergy Pipe Heat Explorer, demo run of October 18, 2026. Heat pump limit: ClimateMaster TE IOM [4]. Weather: NASA POWER, 2018 [2].
PASS, 3.0 °FAdd 25% propylene glycol by volume. The same loop passes, with 3.0 °F to spare at its coldest hour estimate.Source: Gaiergy Pipe Heat Explorer, same run. Freeze protection rule: ClimateMaster TE IOM, p. 18, Table 2 [4].
106 °F vs 88 °FSunlit asphalt vs the grass nearby, on the hottest July afternoon (July 1, 3 PM, year 1) estimate.Source: Gaiergy Pipe Heat Explorer, same run. Sun, sky and wind: NASA POWER, 2018 [2]. Pavement model checked against NBS Report 10373 [5].
What the video shows
Six steps, one pipe.
- Draw the loop on the map. About 5,105 ft of pipe under the street.Source: tool, loop length on the map. Map: © OpenStreetMap contributors © CARTO [6].
- Put 7 devices on one pipe. 4 buildings with heat pumps, 1 geothermal borefield (underground), 1 river thermal exchange and 1 dry cooler.Source: tool, Sunset Park demo design.
- Look inside the ground. A slice through the pipe, the pipe wall, the soil around it and the street on top.Soil layers: USDA Soil Data Access [1].
- Follow the seasons. Hot pavement warms the ground in summer. In winter the cold street pulls heat out of the pipe. In year 10 the loop gives 29 megawatt-hours (MWh) to the soil in winter and takes 18 MWh back in summer estimate.Source: tool, year 10 of the demo run. Weather: NASA POWER, 2018 [2].
- Find the cold snap. January 6, 10 AM. The tool says FAIL and shows which building, which hour and why.Source: tool verdict. Limit: ClimateMaster TE IOM [4].
- Test the fix. 25% glycol by volume. The same loop passes.Source: tool lever test. Rule: ClimateMaster TE IOM, p. 18, Table 2 [4].
Building heating and cooling loads come from NREL ComStock and ResStock, matched on building type, size, location and the 2018 weather year [3] estimate. NREL is the National Renewable Energy Laboratory.
Sources
Where the numbers come from.
Links checked October 19, 2026.
- U.S. Department of Agriculture (USDA), Natural Resources Conservation Service, Soil Data Access (soil survey layers under the loop). sdmdataaccess.nrcs.usda.gov
- NASA Prediction Of Worldwide Energy Resources (POWER), hourly weather for 2018 at Sunset Park: air temperature, sun, sky and wind. power.larc.nasa.gov
- National Renewable Energy Laboratory (NREL), End-Use Load Profiles for the U.S. Building Stock: ResStock 2024 release 2 (homes) and ComStock 2025 release 3 (other buildings), on the Open Energy Data Initiative (OEDI). Dataset page, ResStock files, ComStock files
- ClimateMaster, Tranquility 30 Digital (TE) Series, Installation, Operation and Maintenance manual (IOM), 97B0075N17. Leaving water limits; freeze protection on p. 18, Table 2. files.climatemaster.com (PDF)
- Kusuda, T. (1971), Earth Temperatures Beneath Five Different Surfaces, NBS Report 10373, National Bureau of Standards (NBS, now NIST). Measured ground temperatures under asphalt and grass, used to check the pavement model. nvlpubs.nist.gov (PDF)
- Map in the video: © OpenStreetMap contributors © CARTO. openstreetmap.org/copyright, carto.com/attributions
Prepared by Gaiergy Corp, October 2026. All values are Gaiergy Pipe Heat Explorer results for a demo design estimate.