Boise Heating & Air Conditioning

Heating Products

GT-PW Water-To-Water High-Temp Geothermal Heat Pump

Models: 50YEW

High-Temperature Hot-Water Heating for Radiant/Hydronic Applications

Carrier’s GT-PW water-to-water model delivers hot-water temperatures of up to 145°F for demanding radiant or hydronic applications. Scroll compressor, Puron® refrigerant and onboard controls make this unit an exceptional performer. And it’s about 5 times more efficient than a traditional boiler. Euro-style cabinet design for aesthetics and quiet operation. Available in a 3 ton size.

Key Features

  • Puron® Refrigerant
  • Up to 4.2 COP (closed loop)
  • Up to 5.2 COP (open loop)
  • Delivers water temperatures up to 145°F
  • Designed for radiant/hydronic applications (heating only)
  • Single-stage scroll compressor for performance
  • Euro-style cabinet for great aesthetics
  • Onboard digital control for precision temperature control
  • Insulated cabinet for quiet operation
  • 10-year limited warranty

Product Specifications


  • Efficiency (Closed Loop): Up to 4.2 COP
  • Efficiency (Open Loop): Up to 5.2 COP
  • ENERGY STAR®: As an ENERGY STAR partner, Carrier Corporation has determined that the units achieve efficiencies of 15.1 EER and 3.0 COP or higher to meet ENERGY STAR geothermal closed-loop guidelines. Proper sizing and installation of equipment is critical to achieving optimal performance. Ask your contractor for details, or visit the ENERGY STAR web site.
  • Limited Warranty: 10-year limited on all parts
  • Sound: Quiet operation achieved with fully insulated cabinet and double-isolation compressor mounting system.


  • Controls: Supported Onboard control with digital user interface. Outdoor temperature reset and warm weather shutdown.
  • Diagnostics: Onboard diagnostics.


  • Refrigerant: Puron® refrigerant
  • Compressor: Single-stage scroll
  • Heating Capacity (BTUH): 30,800-42, 600
  • Cooling Capacity (tons): N.A.
  • Aesthetics/Construction: Heavy-duty cabinet made of galvanized steel, powder coated taupe metallic. Hinged front access door.
  • Other: Generates up to 145°F water temperature for radiant/hydronic applications. Brazed plate stainless steel. Load heat exchanger. Wide variety of options.

Contact Western Heating & Air Conditioning

Emails are answered during regular business hours. Monday-Friday 8:00am-7:00pm & Saturday 8:00am-5:00pm. If this is an emergency or you would like after hours service, please call the main number, (208) 319-1736.  Don’t see an appointment that fits your schedule or need service right away? Please call our office at 208-375-6101 and we will do our best to find a time that’s convenient for you! 

Contact Our Boise Heating & Air Conditioning Service at Western Heating & Air Conditioning Today!

(208) 319-1736