2.5 Ton Goodman 14.8 SEER2 R-32 80K BTU Two-Stage Gas Package Unit GPGM53008031
The Goodman GPGM53008031 is the quietest unit in the GPGM5 line, rated at 73 dB. It pairs 2.5 tons of two-stage cooling with a stronger two-stage furnace. Its scroll compressor delivers 29,200 BTUh of total cooling at 14.8 SEER2. Its 4-burner furnace fires at 60,000 or 80,000 BTU input, producing up to 64,800 BTU of heat at 81% AFUE. With a variable-speed ECM blower, R-32 refrigerant, and Goodman's 99-year heat exchanger limited warranty with registration, it suits mid-size homes that want quieter, staged comfort year-round. See more 2.5 ton gas package units.
Is a 2.5 Ton Two-Stage Gas Package Unit the Right Size?
A 2.5 ton unit fits cooling loads of about 27,000 to 30,000 BTUh, which is common for mid-size homes and double-wide manufactured homes. Compared with the 2 ton GPGM5, it adds 5,600 BTUh of total cooling, 140 CFM of airflow, and a significantly larger furnace, up from 60K to 80K BTU input. That makes it a better fit where winters call for more heat.
Because both stages are available in heating and cooling, the system can run at partial output for most of the year and save full capacity for peak days. Insulation, window area, duct location, and your winter design temperature all help decide whether 2.5 tons and 80K BTU of heat are the right match.
Ideal for: Mid-size homes and double-wide manufactured homes in mixed climates, plus small offices that value quiet operation and two-stage comfort.
Need more capacity? Step up to the 3 Ton Goodman Two-Stage Gas Package Unit GPGM53608031 for more cooling with the same 80K furnace.
Recommended applications are general guidelines only. Actual system requirements depend on insulation, ductwork, climate, window area, occupancy, and a proper load calculation. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Package Unit | GPGM53008031: 2.5 Ton Two-Stage Gas/Electric Package Unit |
|---|---|
| Cooling Capacity | 29,200 BTUh Total / 23,100 BTUh Sensible, 920 CFM |
| Gas Heating | 80,000 / 60,000 BTU Input (Two-Stage); 64,800 / 48,600 BTU Output; 81% AFUE |
| Efficiency | 14.8 SEER2 / 11.5 EER2 |
| Refrigerant | R-32, Factory Charged (49 oz.), TXV Metering |
| Compressor | Two-Stage Scroll Compressor |
| Airflow Configuration | Convertible Horizontal or Downflow |
| Electrical | 208/230V, Single Phase, 60 Hz; 21.4 MCA, 30 Amp Max Overcurrent |
The GPGM53008031 shares the medium chassis with the 2 ton, with a 47 x 51 inch footprint, 16 x 16 inch duct openings, and about 380 lb shipped. It fits the same D14CRBPGCHMA roof curb as the other 2–4 ton GPGM5 models. For round ducts, use the SQRPGH101/102 horizontal square to round adapter or Goodman's CDK36 concentric kit for downflow. Learn why R-32 is replacing older refrigerants in our refrigerant transition guide.
Cooling & Gas Heating Features
GPGM53008031 Air Conditioning Section
- 29,200 BTUh total cooling, 23,100 BTUh sensible
- Two-stage scroll compressor (13 RLA / 88 LRA)
- 14.8 SEER2 / 11.5 EER2 efficiency
- Variable-speed ECM blower, 1/2 HP, 920 CFM
- 2-row condenser coil with a 1/4 HP fan
- TXV metering with 49 oz. R-32 charge
- All-aluminum evaporator coil
- Loss-of-charge and high-pressure protection
- 73 dB, the lowest sound rating in the GPGM5 line
- AHRI Certified, UL Listed
GPGM53008031 Gas Furnace Section
- 60,000 / 80,000 BTU two-stage gas input
- 48,600 / 64,800 BTU heating output at 81% AFUE
- Four-burner design with power-assisted combustion
- T-140 aluminized steel tubular heat exchanger
- 35–65°F temperature rise range
- Microprocessor-based direct spark ignition control
- Complies with California Low NOx standard (40 ng/J)
- Propane conversion with accessory kit
- Anchor bracket kits for Florida hurricane code compliance
- 99-year heat exchanger limited warranty with registration
Specifications & Manuals
Product documentation includes GPGM5 technical specifications with expanded cooling, airflow, dimensional, and accessory data, installation instructions, and Goodman warranty terms to assist with equipment selection, installation, and service.
Frequently Asked Questions
How does the 2.5 ton GPGM53008031 compare with the 2 ton?
Total cooling rises from 23,600 to 29,200 BTUh, airflow from 780 to 920 CFM, and furnace input from 60K/45K to 80K/60K BTU, with four burners instead of three. Electrical increases to 21.4 MCA with a 30 amp breaker.
Why is the 2.5 ton rated 14.8 SEER2 instead of 15.2?
Goodman's specifications list the 2.5 ton at 14.8 SEER2. The 2, 3, 3.5, and 4 ton models are rated 15.2, and the 5 ton is rated 15.4. All sizes share the same 11.5 EER2.
Is a concentric duct kit available for the 2.5 ton GPGM5?
Yes. Goodman lists the CDK36 concentric kit for medium-chassis units (2 and 2.5 ton). Large-chassis 3–4 ton units use the CDK4872.
How quiet is the GPGM53008031?
Goodman rates the 2.5 ton at 73 dB, the lowest sound rating of any GPGM5 size.
How many burners does the 2.5 ton GPGM5 furnace have?
The GPGM53008031 uses four burners with a two-stage gas valve and power-assisted combustion.
What size are the duct openings on the GPGM53008031?
The medium chassis has 16 x 16 inch supply and return openings. Full dimensions are in the technical specifications.

GPGM5 Technical Specifications