Independent Review · Updated June 2026

2.5 Ton 14 SEER 97% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency dual-fuel system with modulating burner and variable-speed blower.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
2.5 Ton 14 SEER 97% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system excels for homeowners seeking premium efficiency without premium pricing. The 97% AFUE furnace and 16 SEER2 condenser make it ideal for climate zones requiring both heating and cooling performance. Best suited for natural gas or propane users in moderate to cold climates.

Review

Goodman's 2.5-ton gas furnace and air conditioner system represents solid middle-market positioning in the HVAC landscape. At its price point, the combination of 97% AFUE heating and 16 SEER2 cooling efficiency delivers measurable cost savings without requiring premium equipment investment. The modulating burner and variable-speed ECM blower show Goodman's commitment to responsive, efficient climate control. This system appeals to homeowners prioritizing heating and cooling performance equally, particularly in regions experiencing genuine heating seasons.

Performance metrics reveal this system punches above its weight class. The furnace produces 80,000 BTU of modulating heat output while maintaining that impressive 97% efficiency, meaning minimal energy waste. On the cooling side, the 29,000 BTU condenser achieves 16 SEER2 rating with R410A refrigerant compatibility. The variable-speed blower reaches 1200 CFM maximum airflow, adapting output to real-time comfort demands. Electrical requirements stay manageable at 115V single-phase with a 17.1 to 25-amp breaker range, fitting most existing residential panels.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency ranks among the highest available, reducing heating costs significantly
  • 16 SEER2 rating on the condenser exceeds the stated 14 SEER specification, delivering better cooling efficiency than marketed
  • Modulating burner stages optimize heating comfort and fuel consumption across varying demand levels
  • Variable-speed ECM blower motor maximizes airflow control and reduces electricity usage
  • Energy Star certified with 10-year warranty when registered online

Cons

  • Single-stage condenser limits part-load cooling efficiency despite high SEER2 rating
  • 71.5 dBA noise level runs noticeably loud during operation, potentially disruptive in open-concept homes
  • A-coil configuration requires upflow installation only, limiting flexibility for retrofit applications

Who Should Buy

Best For

Homeowners in cold or moderate climates who heat with natural gas or propane and want straightforward, efficient comfort. This system works well for those prioritizing utility bill reduction and reliability over premium features like variable-capacity cooling.

Consider Alternatives If

Anyone needing whisper-quiet operation or flexible installation orientations should look at alternative systems, as the 71.5 dBA output and upflow-only design present limitations.

2.5 Ton 14 SEER 97% AFUE 80,000 BTU Goodman Gas Fu
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Installation

Installation requires upflow or horizontal mounting only due to the A-coil design, limiting placement flexibility. The unit accepts PVC plastic exhaust flue, simplifying venting through modern home construction. Line sets run standard sizes: 3/8-inch liquid line and 7/8-inch suction line with 3/4-inch insulation thickness. Compact dimensions at 34.5 inches tall and 17.5 inches wide fit tight spaces. AHRI certificate number 7424265 confirms proper matching with compatible coils and outdoor units.

Warranty & Reliability

Online Supply backs this system with 10 years of parts coverage upon registration, standard for quality Goodman equipment. This warranty protects against manufacturing defects in compressors, heat exchangers, and electrical components. Registration is required to activate full term, so homeowners must complete this step immediately after installation. Labor coverage varies by installer, so confirm details before purchase.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU29,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)71.5
Weight (in lbs)30.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size25 amps
Min. Breaker Size17.1 amps
Tonnage3 Ton
Height34.5"
Width17.5"
Depth28.75"
ResourcesGoodman Brochure Goodman Installations Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
AHRI Certificate Number7424265
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM1200
Burner StagesModulating
Fuel TypePropane, Natural Gas
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

How does the 16 SEER2 rating compare to the advertised 14 SEER? +
The specs show 16 SEER2 efficiency on the condenser, exceeding the product title claim of 14 SEER. This suggests either title outdatedness or conservative marketing. Actual cooling efficiency is better than advertised, which benefits homeowners through lower summer utility costs.
Can this system install in horizontal or downflow positions? +
No. The A-coil configuration restricts installation to upflow or horizontal orientations only. Homeowners with basements or attic limitations may need alternative systems. Verify your installation location supports upflow before purchasing.
What fuel sources does this furnace accept? +
The system burns both natural gas and propane, offering flexibility for different utility availability. Confirm your home's fuel line size and pressure with a technician, as conversion between fuels requires professional adjustment and testing.
How does modulating burner performance compare to single-stage units? +
Modulating burners reduce on-off cycling by adjusting output between 30 to 100 percent capacity, improving comfort and reducing draft. This delivers more stable indoor temperatures and quieter operation than traditional two-stage burners, though initial cost runs higher.
Is the 10-year warranty automatically active upon purchase? +
No. The warranty requires online registration to activate the full 10-year term. Unregistered units typically revert to shorter, limited coverage. Complete registration immediately after installation to avoid gaps.

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