A geothermal technician keeps heat moving where it should: either in a ground-source heat pump system at a home or building, or through the wells, steam lines, turbines and controls at a geothermal power plant. The work is hands-on, and you can enter with a high school diploma and learn the trade by doing. This roadmap starts with the physics and safety basics, moves to installing and testing loop fields and heat pumps (the biggest source of entry-level jobs), then to plant operations, controls and troubleshooting. Everything here is free to learn. Each skill builds on the last, so go in order
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Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 3 · about 10 weeks
Understand how heat moves, how a heat pump cycle works, and how to work safely with tools, pipe and electricity.
Heat, pressure and the refrigeration cycle
A geothermal heat pump is a refrigeration cycle that uses the ground as a heat source or sink. If you understand evaporator, compressor, condenser and expansion valve, every problem you meet later makes sense, because you can ask which part of the cycle is failing.
Shop math and unit conversion
You will size pipe, compute flow in gallons per minute, convert BTU to tons, and read pressure and temperature differences every day. Mistakes in math become callbacks.
Electrical basics and lockout/tagout
Heat pumps and plant equipment run on high voltage and stored energy. Safe habits keep you alive and are the first thing a good employer checks.
Reading drawings and basic documentation
Jobs run on paper: piping diagrams, loop layouts, logs and reports. Being able to read a drawing and write a clear record is a large part of the job tasks.
Then 2 more stages (about 46 weeks in all) with lessons, drills, projects, 6 interview questions with strong answers and free resources.