Independent Review · Updated June 2026

2 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Budget-friendly Goodman system with solid efficiency for modest cooling needs

7.1
IndustrialRank Score
Efficiency
7.5
Reliability
7.8
Value
8.2
Installation
8.0
Warranty
7.5
2 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
$2700
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This system works best for homeowners upgrading from older equipment in moderate climates where heating demands exceed cooling needs. At $2,700, it delivers reasonable efficiency without premium pricing, though the spec sheet contains some conflicting tonnage information that requires clarification before purchase.

Review

The Goodman 2-ton system at $2,700 enters a crowded market segment occupied by both budget brands and mid-tier equipment. Online Supply positions this as an entry-level option, and the Energy Star certification signals baseline efficiency commitment. However, the product specs raise immediate questions, listing contradictory tonnage ratings that need resolution before installation planning begins.

Performance specs show an 80,000 BTU heating capacity with two-stage burners and 80% AFUE efficiency, solid for moderate winter climates. The cooling side delivers 23,600 BTU (not a full 24,000 for true 2-ton capacity), with a variable-speed blower handling up to 2,000 CFM. The scroll compressor operates at single stage, meaning it runs full capacity or off, lacking the modulation found in higher-tier systems. Energy Star compliance confirms the equipment meets federal minimum thresholds.

Pros & Cons

Pros

  • Strong 80,000 BTU heating capacity with two-stage burner covers winter demand effectively
  • 80% AFUE furnace efficiency meets baseline standards for gas equipment
  • Variable-speed blower motor provides better temperature consistency than fixed-speed alternatives
  • Energy Star certified system reduces annual operating costs
  • 10-year warranty with online registration offers solid peace of mind
  • Single-stage scroll compressor is proven reliable for residential applications

Cons

  • Spec sheet lists conflicting tonnage, 2-ton in title but 3.5-ton in specifications, creating confusion
  • SEER rating shows 16 in specs but product title claims 15 SEER, potential discrepancy
  • 23,600 cooling BTU is undersized for true 3-ton applications in hot climates
  • 80% AFUE is adequate but falls short of 90%+ high-efficiency models available today
  • Single-stage compressor cycles on and off, less efficient than variable-capacity alternatives

Who Should Buy

Best For

Homeowners in moderate climates where heating demands outweigh cooling needs and budget matters more than premium efficiency ratings. This works well for upflow installations in basements or crawlspaces serving homes without extensive air conditioning requirements.

Consider Alternatives If

Buyers in hot climates needing robust cooling capacity, or those seeking modern high-efficiency systems with variable-stage compressors and 95%+ AFUE ratings should explore alternatives.

2 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furn
$2700
Buy at HVACDirect →

Installation

This upflow configuration suits basement or crawlspace installation with standard ductwork. The system requires 120V single-phase 60Hz power with 12.4 to 20-amp breaker capacity, typical of residential installations. Metal exhaust flue is mandatory for the furnace section. Refrigerant compatibility covers both R410A and R22, allowing retrofit applications. Line sets use standard 3/8-inch and 3/4-inch connections with 3/4-inch insulation, both common sizes.

Warranty & Reliability

The 10-year warranty activates with online registration and covers parts and labor for defects. This duration matches industry standards for Goodman equipment at this price point. The registration requirement means keeping documentation accessible, a minor but necessary step for claim processing. Coverage appears straightforward without documented exclusions in provided materials.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU23,600
Heating BTU80,000
RefrigerantR410A or R22
Electrical120 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)71.5
Weight (in lbs)22.000000
FeatureSpec
ReplacesGSX16S241
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size20 amps
Min. Breaker Size12.4 amps
Tonnage3.5 Ton
Height30"
Width21"
Depth21"
ResourcesCAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil 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.
AHRI Certificate Number204633302
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorVariable Speed
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypePropane, Natural Gas
Liquid Line3/8"
Suction Line3/4"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Why does the spec sheet show both 2-ton and 3.5-ton ratings for the same product? +
This discrepancy needs clarification from Online Supply before purchase. The 23,600 cooling BTU aligns with 2-ton capacity, while other specs reference 3.5-ton. Contractors should verify the AHRI certificate 204633302 independently to confirm actual tonnage and performance ratings for their application.
Is this system suitable for hot climates requiring significant cooling? +
No. The 23,600 cooling BTU falls short for hot-climate performance. Homes in high-cooling-demand areas should consider larger tonnage or variable-capacity compressors. The heating emphasis suggests this equipment targets moderate climates where winter demands dominate.
How does 80% AFUE compare to modern furnaces? +
80% AFUE meets minimum energy codes but trails high-efficiency units at 90 to 98%. This system wastes 20% of fuel as exhaust heat. Long-term savings favor efficiency upgrades, though initial costs run higher. Your local climate and natural gas rates determine payback periods.
Can this replace an older Goodman GSX16S241 system? +
The specs indicate this model replaces GSX16S241, but the tonnage confusion makes verification essential. Check ductwork sizing, electrical service, and line-set routing before confirming compatibility. Calling Goodman technical support with the AHRI certificate number removes ambiguity.
What does the 10-year warranty actually cover? +
Parts and defects are covered for 10 years with online registration. The warranty does not cover installation labor, maintenance, refrigerant, or damage from improper service. Review Goodman's terms carefully, as coverage limits may apply to specific components.

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