Product Comparison: Geothermal Heat Pumps

  GT-PX Series Geothermal Heat Pump
GT-PX 		GT-PG Series Geothermal Heat Pump
GT-PG 		GT-PX Split Series Geothermal Heat Pump
GT-PX Split 		GT-PE Outdoor Split Series Geothermal Heat Pump
GT-PE Outdoor Split 		GT-PW Water-to-Water High-Temp Geothermal Heat Pump
GT-PW
High-Temp2 		GT-PW Water-to-Water Geothermal Heat Pump
GT-PW1
Performance
Efficiency COP (closed loop) 3.6 - 4.6 3.6 - 4.2 3.6 - 4.2 3.6 - 4.2 3.3 - 4.2 3.1
Efficiency EER (closed loop) 16.2 - 27.0 16.6 - 20.2 15.3 - 24.5 15.3 - 24.5   16.0 - 16.4
Efficiency COP (open loop) 4.3 - 5.1 4.3 - 5.1 4.3 - 4.7 4.3 - 4.7 4.1 - 5.2 3.9 - 4.0
Efficiency EER (open loop) 19.9 - 31.5 21.6 - 27.4 19.2 - 29.4 19.2 - 29.4   20.1 - 23.1
ENERGY STAR® Rated Check Check Check Check Check Check
Puron® Refrigerant Check Check Check Check Check Check
Two Stage Scroll Compressor Check   Check Check    
Single Stage Scroll Compressor   Check     Check Check
Sound
Variable speed ECM Check Optional Optional3 Optional3 N.A. N.A.
Double isolation compressor mounting Check Check Check Check Check Check
Insulated cabinet Check Check Check Check Check Check
Durability
Tin Plated Air Coil Check Check N.A. N.A. N.A. N.A.
Stainless Steel Drain Pan Check Check N.A. N.A. N.A. N.A.
Limited Warranty
Compressor* 10 years 10 years 10 years 10 years 10 years 10 years
Major refrigeration components* 10 years 10 years 10 years 10 years 10 years 10 years
All other internal components* 10 years 10 years 10 years 10 years 10 years 10 years
1
Water-to-water heating and cooling unit.
2
Water-to-water heating only unit.
3
Depends on selected air handler/furnace.
*
Standard warranty effective July 1, 2010. 5-year labor allowance on compressor and refrigeration components. 2-year labor allowance on all other internal parts. An optional extended warranty is available, providing a labor allowance on all parts for 10 years. See dealer for details.
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