Product Comparison: Geothermal Heat Pumps

  GT-PX Series Geothermal Heat Pump
GT-PX
GT-PG Series Geothermal Heat Pump
GT-PG
GT-G Series Geothermal Heat Pump
GT-G
GT-PX Split Series Geothermal Heat Pump
GT-PX Split
GT-GS Split Series Geothermal Heat Pump
GT-GS Split
GT-S Outdoor Split Series Geothermal Heat Pump
GT-S Outdoor Split
GT-PW Water-to-Water High-Temp Geothermal Heat Pump
GT-PW
High-Temp
2
GT-PW Water-to-Water Geothermal Heat Pump
GT-PW1
Performance
Efficiency COP (closed loop) 3.6 - 4.6 3.6 - 4.2 3.4 - 3.8 3.6 - 4.2 3.3 - 3.6 3.3 - 3.6 3.3 - 4.2 2.9 - 3.1
Efficiency EER (closed loop) 16.2 - 27.0 16.6 - 20.2 13.4 - 18.5 15.3 - 24.5 14.2 - 16.6 14.2 - 16.6   15.1 - 16.8
Efficiency COP (open loop) 4.3 - 5.1 4.3 - 5.1 3.6 - 4.1 4.3 - 4.7 3.7 - 4.0 3.7 - 4.0 4.1 - 5.2 3.7 - 4.0
Efficiency EER (open loop) 19.9 - 31.5 21.6 - 28.1 16.8 - 23.9 19.2 - 29.4 17.2 - 22.1 17.2 - 22.1   21.3 - 23.1
ENERGY STAR® Rated Check Check Check (except 070 closed loop) Check Check Check N.A. N.A.
Puron® Refrigerant Check Check   Check     Check Check
R-22 Refrigerant     Check   Check Check    
Two Stage Scroll Compressor Check     Check        
Single Stage Scroll Compressor   Check Check(rotary in 1.3,1.5 sizes)   Check Check (rotary in 1.5 size) Check Check
Sound
Variable speed ECM Check Optional Optional Optional3 Optional3 Optional3 N.A. N.A.
Double isolation compressor mounting Check Check Check Check Check Check Check Check
Insulated cabinet Check Check Check Check Check Check Check Check
Durability
E-Coated Air Coil Check Check Check N.A. N.A. N.A. N.A. N.A.
Stainless Steel Drain Pan Check Check   N.A. N.A. N.A. N.A. N.A.
Limited Warranty
Compressor 10 years 10 years 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 10 years 10 years
All other components 5 years 5 years 5 years 5 years 5 years 5 years 5 years 5 years
1
Water-to-water heating and cooling unit.
2
Water-to-water heating only unit.
3
Depends on selected air handler/furnace.
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