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Geothermal Heat Pumps

GT-PW WaterTo WaterGeothermalHeat Pump – 50YEW


This geothermal heat pump delivers the comfort with hot water for your radiant or hydronic system putting you in hot water in a good way.

Carrier’s® GT-PW water-to-water model produces hot water only and can be as much as 5 times more efficient than a traditional boiler system. Because of its high-heat capacity, it could also be used as a dedicated hot water source for your home.

Perhaps best of all is a Federal tax credit still available on qualified geothermal heating and cooling systems. So, you can revel in getting a tax credit of up to 30% of your installed cost of a geothermal system.

Key features:


  • Designed for a wide range of radiant/hydronic applications (heating only)
  • Can alternatively be used as a dedicated domestic hot water source
  • Delivers water temperatures up to 145°F
  • Single-stage scroll compressor
  • Insulated cabinet for quiet operation
  • Large operating temperature range
  • Built-in programmable controller with outdoor temperature reset and warm weather shutdown
  • Non-ozone depleting Puron® refrigerant
  • 10-year parts and labor limited warranty1


  • Supplemental, domestic hot water generation when used primarily for radiant/hydronic applications

1 To the original owner, when installed in an owner-occupied residence, a 10-year parts limited warranty and 5-year labor limited warranty for major refrigerant circuit components (including compressors, heat exchangers, and expansion and reversing valves), and a 2-year labor limited warranty for all other parts. See warranty certificate for details.



  • Closed loop heating: Up to 4.2 COP
  • Open loop heating Up to 5.2 COP
  • ENERGY STAR® qualified in all sizes


  • Output: Up to 145°F heated water
  • Excellent cold weather performance
  • Sound: Quiet operation


  • Single-stage scroll compressor
  • Sound enhancements: Fully insulated cabinet and double-isolation compressor mounting system
  • Electronic control board
  • Built-in programmable controller


  • 36,000 Btu/h heating


  • 208/230 V


  • Heavy-duty, galvanized steel cabinet
  • Epoxy-coated, taupe metallic paint
  • Hinged front door access

Published on March 18th, 2017