GT-PX Geothermal Heat Pump (Best)

• Up to 4.6 COP (closed loop)
• Up to 27.0 EER (closed loop)
• Up to 5.1 COP (open loop)
• Up to 31.5 EER (open loop)
• Two-stage unloading scroll compressor
• Variable speed blower motor
• Puron refrigerant
• 10-year limited warranty on all compressor & major refri...geration components. 5-year limited warranty on other parts

GT-PG Geothermal Heat Pump (Better)

• Up to 4.2 COP (closed loop)
• Up to 20.2 EER (closed loop)
• Up to 5.1 COP (open loop)
• Up to 28.1 EER (open loop)
• Single stage scroll compressor
• PSC blower (optional variable speed blower motor)
• Puron refrigerant
• 10-year limited warranty on all compressor & major refri...geration components. 5-year limited warranty on other parts

GT-G Geothermal Heat Pump (Good)

• Up to 3.8 COP (closed loop)
• Up to 18.5 EER (closed loop)
• Up to 4.1 COP (open loop)
• Up to 23.9 EER (open loop)
• Single stage scroll compressor
• PSC blower (optional variable speed blower motor)
• 10-year limited warranty on all compressor & major refri...geration components. 5-year limited warranty on other parts