Can you use a pond for geothermal?
A pond / lake ground loop is a series of plastic pipes filled with heat-transfer fluid and submerged in a nearby pond or lake with adequate size, depth, and flow. The loop connects to an indoor geothermal heat pump and uses the pond or lake water as a heat source or heat sink.
How much space is needed for a geothermal heat pump?
Answer: A ground source heat pump needs more space than an air source heat pump. A typical horizontal system requires around 700 square metres. A vertical system needs enough space for the drilling rig to access the site, but boreholes are only around 20 centimetres wide.
How deep does a geothermal horizontal field need to be?
For a horizontal loop you only need to dig between 6 – 8 feet deep. For a vertical loop you need to drill between 250 and 300 feet deep.
How deep do geothermal systems go?
It requires trenches at least four feet deep. The most common layouts either use two pipes, one buried at six feet, and the other at four feet, or two pipes placed side-by-side at five feet in the ground in a two-foot wide trench.
How does open loop geothermal work?
What’s an Open Loop Geothermal System? An open loop geothermal system pipes clean ground water directly from a nearby aquifer to an indoor geothermal heat pump. After the water leaves the home, it’s expelled back through a discharge well, which is located a suitable distance from the first.
How deep do you need to dig for a ground source heat pump?
A ground source heat pump borehole represents a closed loop system which comprises a set of polyethene pipes that are vertically inserted into the ground and which circulate water to and from the geothermal heat pump. In most cases, the borehole size will range between 15 and 122 m deep.
What type of pipe is used for geothermal?
Polyethylene
Polyethylene is the most common pipe material used in ground source heat exchangers.
Can you build over geothermal lines?
Yes. But it requires some foresight. Keep the footings away from any freeze/thaw basically.
https://www.youtube.com/watch?v=mGLlo8nGhME