Heat pump type
Geothermal Heat Pumps
Learn how geothermal heat pumps work and compare ground-source models, loop options, efficiency, site requirements, project costs, and incentives.
How geothermal heat pumps fit a home
Geothermal, or ground-source, heat pumps exchange heat with the ground or groundwater rather than outdoor air. Ground temperatures are relatively stable, but loop design, drilling or excavation, water conditions, and local installer experience strongly influence project feasibility and cost.
Good fit for
- Long-term owners evaluating a major HVAC investment
- Sites with suitable land, geology, or water-loop options
- Projects prioritizing stable cold-weather performance
What to compare
Check 1
Obtain a site-specific loop and load design before comparing proposals.
Check 2
Separate equipment cost from drilling, excavation, and loop-field cost.
Check 3
Check current state, utility, and local incentives before signing a contract.
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