GT-PW Water To Water Geothermal Heat Pump

Quality Products Installed Professionally

Texas Air Mechanical has more than four decades of experience as boiler and HVAC installers. We guarantee the work we do, so you can benefit not only from our warranty, but the full manufacturer’s warranty too. If you know you need a new system for your home or business, call us today to request an estimate.


Brands You Know & Trust

Quality really does make a difference in how a unit operates and lasts. That’s why we’ve carefully chosen the brands of boilers and HVAC systems we sell and install. Our manufacturer partners include:

  • Rheem
  • Carrier
  • Trane
  • Lennox
  • York
  • Pacific Steam Boilers
  • SUSSMan Boilers
  • Reimers Boilers
  • Goodman

These names offer exceptional quality and stand behind their products with industry-leading warranties.




Why Choose Texas Air Mechanical as Your Boiler & HVAC Installers

We know there are many companies in the DFW Metro area that are boiler and HVAC installers, but few have the expertise of Texas Air Mechanical. All our technicians are licensed and factory-certified. Before we provide you with a quote for a new unit, we’ll evaluate your home or facility to determine the right type and size system. We’ll then provide you several options based on your preference, needs and budget.

You’ll find that when you choose us as your HVAC installers, all work is done in accordance with not only the manufacturer’s instructions, but also local and state code. We want to ensure that your new system is properly installed so you benefit from the full factory warranty in addition to our installation guarantee.

Because we’re locally owned and operated, we truly care about our reputation. Texas Air Mechanical is A+ rated by the Better Business Bureau, and we also have countless five-star reviews from our residential and commercial customers.


Get in Touch Today

If you’d like to request a quote, call Texas Air Mechanical to schedule your appointment. We accept most major credit cards and offer several convenient financing options for residential services. Contact us today by calling (972) 284-0584 or filling out our contact form. Se habla español.


GT-PW Water To Water Geothermal Heat Pump


Model: 50YEW

Commercial Hvac Companies Keller Tx Geo Thermal Logo 2

  • Category Price: $$
  • Product Line: Geothermal Heat Pumps – GT-PW Series Hydronic Heat-Only System
  • Comfort Features: Better
  • Output Type: Hot water only
  • Application: Indoor
  • Type: Radiant (hydronic) systems
  • Cooling Efficiency: NA
  • Heating Efficiency: Up to 4.2 COP (Closed Loop)
  • Cooling EER (Open Loop): Up to 5.2 COP
  • Heating COP (Open Loop): Up to 4.2 COP
  • Cooling EER (Closed Loop): 
  • Heating COP (Closed Loop): Up to 4.2



  • Closed Loop Overall Efficiency: All sizes ENERGY STAR® qualified
  • Closed Loop Highest Heating Efficiency: 4.0+ COP
  • ENERGY STAR® Qualified: All sizes ENERGY STAR® qualified
  • Summer Dehumidification: n/a
  • Cold weather performance: True
  • Fan sound levels: n/a
  • Compressor Type: Single-stage scroll
  • Blower motor type: n/a
  • Hybrid Heat® compatible: NA
  • Efficiency Closed Loop: Up to 4.2 COP
  • Efficiency Open Loop: Up to 5.2 COP
  • Proposition 65 Product Warnings: 343824-2 Lead and Lead Compounds

This heat pump delivers the hot water to  heat your home and can provide for your domestic water needs, too. It’s designed to produce higher water temperatures for demanding radiant/hydronic applications.

Carrier’s GT-PW water-to-water model puts you in hot water in a good way and is up to five times more efficient than a traditional boiler. Euro-style cabinet design is pleasing to the eye with quiet operation that’s just as pleasing to the ear.

Perhaps best of all is the Federal tax credits still available on geothermal systems. You can revel in getting a tax credit of up to 30% of your installed cost of a geothermal system.


  • 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
  • Large operating temperature range
  • CXM Unit Performance Sentinel Control Board for precision operation
  • Built-in programmable controller with outdoor temperature reset and warm weather shutdown
  • Attractive, Euro-style cabinet
  • Non-ozone depleting Puron® refrigerant
  • 10-year limited warranty
  • Limited service labor allowance1



  • Supplemental, domestic hot water generation when used primarily for radiant/hydronic applications
  • Optional extended service labor allowance available2


1 A 5-year limited service labor allowance covering repairs to the compressor and refrigerant circuit parts; a 2-year limited service labor allowance on all other unit parts, auxiliary electric heaters and geothermal pumping modules. See warranty certificate for complete details.

2 Coverage varies by part. Ask your Carrier® geothermal expert 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
  • Performance Sentinel diagnostic intelligence
  • Built-in programmable controller



  • 36,000 Btu/h heating



  • 208/230 V



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