Product Comparison: Geothermal Heat Pumps

	GT-PX	GT-PG	GT-G	GT-PX Split	GT-GS Split	GT-S Outdoor Split	GT-PW High-Temp2	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			(except 070 closed loop)				N.A.	N.A.
Puron® Refrigerant
R-22 Refrigerant
Two Stage Scroll Compressor
Single Stage Scroll Compressor			(rotary in 1.3,1.5 sizes)			(rotary in 1.5 size)
Sound
Variable speed ECM		Optional	Optional	Optional3	Optional3	Optional3	N.A.	N.A.
Double isolation compressor mounting
Insulated cabinet
Durability
E-Coated Air Coil				N.A.	N.A.	N.A.	N.A.	N.A.
Stainless Steel Drain Pan				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.