Where’s the job?

Overview

• Installing ground source heat pumps (GSHPs) involves utilising the earth's natural heat via buried loop systems for efficient heating and cooling.

• Skill level: 4 / 5 (requires geological surveys, precise drilling and refrigerant piping expertise).

• Typical duration: From 3 days up to several weeks, depending on ground conditions and system complexity.

Safety First

• Carry out a detailed site survey and soil analysis prior to drilling.

• Ensure all drilling and installation work complies with local planning and environmental guidelines.

• Wear appropriate PPE and follow safe drilling protocols; underground work can present unexpected hazards.

• Ensure proper installation of refrigerant piping and adequate ventilation for the heat pump unit.

• Check that all electrical and structural connections meet safety standards before commissioning.

Tools & Materials

Step-by-Step

1. Conduct a site survey and obtain necessary planning permissions and geological assessments.

2. Drill boreholes or install a horizontal loop field for the ground loop, based on site conditions.

3. Lay ground loop pipes/coils in the boreholes or below-ground trenches ensuring even distribution.

4. Install the heat pump unit in a well-ventilated area and secure proper electrical connections.

5. Connect the ground loops to the heat pump unit along with the digital control system.

6. Evacuate and charge the system with refrigerant, ensuring all joints are leak-free.

7. Test the system comprehensively before final commissioning and documentation.

Completion Checks

• Ensure the heat pump operates at optimal temperatures and efficiency.

• Verify there are no refrigerant leaks and all pressure readings fall within specified ranges.

• Confirm that electrical and control connections are secure and functional.

• Check that the ground loops are properly buried and stabilised.

When to Call a Pro Instead

For projects involving complex ground conditions, extensive drilling, or where environmental compliance is paramount, a certified geothermal installation expert or NICEIC-registered professional should be consulted to ensure safety, efficiency and warranty protection.