For Service, Estimates or Maintenance

Over 80 Years Serving the Fox Valley

GT-PB Compact Geothermal Heat Pump – 50YF

Contact us to request service or request an estimate. We offer Emergency 24hr service too! For After Hour Emergency Service please call 847-742-3486 ext. 302 or call 630-549-5944 for After Hour Emergency Estimates.

Our normal hours are 8am – 4pm.


For a compact unit, the GT-PB series is loaded with features. Despite their compact size, they offer big unit performance with a two-stage compressor, variable-speed blower and an internal variable-speed loop pump.

Just like their larger cousins, these geothermal heating and cooling units also qualify for a Federal tax credit of up to 30% of your installed cost.

Additional information


Two-stage scroll compressor for ultimate comfort and reliable performance
Variable-speed blower motor for ultimate comfort and quiet operation
Superior dehumidification and temperature control
Insulated cabinet for quiet operation
Large operating temperature range
Corrosion-resistant air coil for long life
Stainless steel drain pan
Onboard variable-speed loop pump saves the cost of an additional component
1' MERV 8 filtration
Non-ozone depleting Puron® refrigerant
10-year parts and labor limited warranty1
Supplemental, domestic hot water generation
Externally-mounted auxiliary heat available
1 To the original owner, when installed in an owner-occupied residence, a 10-year parts limited warranty and 5-year labor limited warranty for major refrigerant circuit components (including compressors, heat exchangers, and expansion and reversing valves), and a 2-year labor limited warranty for all other parts. See warranty certificate for details.


Closed loop cooling: Up to 23.6 EER
Closed loop heating: Up to 4.0 COP
Open loop cooling: Up to 27.5 EER
Open loop heating Up to 4.6 COP
ENERGY STAR® qualified in all sizes
Summer dehumidification is compressor and blower motor enhanced
Excellent cold weather performance
Sound: ultra quiet fan sound levels
High-efficiency, variable-speed blower motor
Two-stage scroll compressor
Sound enhancements: Fully insulated cabinet and double-isolation compressor mounting system
Electronic control board
2-5 ton cooling
24,000-60,000 Btu/h heating
Vertical upflow
208/230 V
Heavy-duty, galvanized steel cabinet
Epoxy-coated in taupe metallic paint