Home GSHP Loop — India
Loop length, trench length and land area from load and soil type.
India's GSHP story is cooling-dominated: the loop rejects heat into 27°C soil instead of 45°C air, lifting summer EER dramatically. Size for the cooling load (usually the larger) and damp subsoil helps.
Indian residential loop: the ground supplies the load minus the compressor's contribution. Undersized loops work the first season, then progressively freeze the ground and kill the COP — size for the soil you actually have, and when in doubt, drill the test bore.
Engineering estimate from published standards and typical equipment data. Site conditions, equipment datasheets and measured data govern the real result — confirm with a qualified engineer.
Use the free Home GSHP Loop — India online — Loop length, trench length and land area from load and soil type. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Home GSHP Loop — India
India's GSHP story is cooling-dominated: the loop rejects heat into 27°C soil instead of 45°C air, lifting summer EER dramatically. Size for the cooling load (usually the larger) and damp subsoil helps.
How to use Home GSHP Loop — India
- 1Enter the peak heating/cooling load.
- 2Pick the ground type honestly (test bores beat guesses).
- 3Read pipe length and the boreholes or trench the config needs.
Why use Home GSHP Loop — India?
- ✓Soil-honest extraction rates: wet clay to dry sand spans 3×
- ✓Loop length, borehole count or trench length — config-correct outputs
- ✓COP-aware: the ground supplies load minus compressor work
- ✓Undersizing warned against explicitly (frozen-loop death spiral)
Frequently asked questions
How long does a ground loop need to be?+
Pipe length = ground-side load ÷ soil extraction rate. A 10 kW system at COP 4 draws ~7.5 kW from ground; in damp loam (40 W/m) that's ~190 m of pipe — two 100 m boreholes or ~95 m of two-pipe trench. Soil moisture moves this 3×, which is why the soil selector matters most.
Vertical boreholes or horizontal trenches?+
Land decides: horizontal costs less per metre (excavator vs drill rig) but needs yard area at 1.5–2 m depth; boreholes go down 50–150 m on a parking-space footprint and reach steadier temperatures. City sites drill; farms and large plots usually trench.
What happens if the loop is undersized?+
A slow-motion failure: the ground around the loop progressively freezes (heating) or bakes (cooling) season over season, COP slides, and the 'efficient' system becomes an expensive resistance heater by year three. Size for the soil you have — and when in doubt, drill the test bore.
Does geothermal make sense in India?+
For cooling, increasingly: rejecting heat into 27°C earth instead of 45°C summer air lifts efficiency 30–50% for the same machine. Large buildings with land (campuses, hospitals) pencil first. The loop sizing here works both directions — size for the dominant (cooling) load.
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