Independent Review · Updated June 2026

2.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal

Solid 2.5-ton gas furnace and AC combo with 96% efficiency and 13 SEER cooling.

7.9
IndustrialRank Score
Efficiency
8.4
Reliability
7.7
Value
8.1
Installation
8.3
Warranty
8.0
2.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal
Current Price
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// Bottom Line
This Goodman system works best for contractors and homeowners upgrading older 2.5-ton equipment in moderate climates where mid-tier efficiency meets budget constraints. The 96% AFUE furnace and 13 SEER condenser offer respectable operating costs without premium pricing.

Review

The Goodman 2.5-ton gas furnace and air conditioner system sits comfortably in the contractor-grade middle market. Rated at 80,000 BTU heating capacity with 96% AFUE efficiency and 30,000 BTU cooling at 13 SEER, this horizontal A-coil unit targets replacement jobs in established homes rather than high-performance new construction. Online Supply bundles the complete matched pair, simplifying purchasing and ensuring proper system compatibility.

Performance specs tell a practical story. The 96% AFUE furnace converts nearly all fuel to usable heat, translating to lower winter energy bills in gas-heated homes. The 13 SEER air conditioner provides competent summer cooling without cutting-edge efficiency, making it suitable for moderate climates and moderate usage patterns. Single-stage operation means the system cycles on and off rather than ramping capacity, a trade-off that keeps price down but misses efficiency gains during partial-load conditions.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating fuel consumption by roughly 15-20% compared to 80% AFUE units
  • 13 SEER cooling delivers solid performance, hitting EPA mid-range standards for air conditioning efficiency
  • Multi-speed blower motor allows customized airflow between 0-1200 CFM for balanced comfort and efficiency
  • Horizontal A-coil configuration fits tight attic or closet installations where vertical space is limited
  • 10-year warranty with online registration provides reasonable protection for residential applications

Cons

  • Single-stage compressor and burner lack variable capacity, running at full output even during mild weather and reducing efficiency gains
  • 73 dB noise level registers slightly above quieter models, noticeable during compressor cycling in quiet homes
  • Not Energy Star certified, meaning it meets baseline standards but misses top-tier efficiency recognition

Who Should Buy

Best For

Contractors replacing matched 2.5-ton systems in homes built between 2000-2010, and budget-conscious homeowners in zones 4-7 who prioritize upfront savings and proven Goodman durability. This system fits tight horizontal attic spaces where standard vertical units don't work.

Consider Alternatives If

Skip this if you need variable-capacity performance, live in extremely hot climates where continuous AC run-time demands maximum efficiency, or qualify for Energy Star rebates requiring higher SEER ratings.

2.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Fu
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Installation

This horizontal configuration requires right-side flue venting with plastic PVC piping, common in attic installations. The 3/8-inch suction and liquid lines accept standard sweat valve connections. Electrical demand runs 16.7 to 25 amps at 115V single phase, fitting standard breaker panels. Height of 34.5 inches and depth of 28.75 inches fit tight spaces where vertical equipment won't work, though proper ductwork and airflow planning remain essential.

Warranty & Reliability

The 10-year parts warranty with online registration provides solid baseline coverage for residential systems. Registration requires email verification but causes no operational burden. This timeframe covers typical compressor failures and heat exchanger defects, though labor and refrigerant charges typically fall to the homeowner. Compare against competitor 10-year warranties before purchasing.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU30,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)22.000000
FeatureSpec
Energy StarNo
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Line3/8"
Suction Line3/4"
Liquid Valve Size3/8"
Max Breaker Size25 amps
Min. Breaker Size16.7 amps
Tonnage2.5 Ton
Valve TypeSweat
Height34.5"
Width17.5"
Depth28.75"
ResourcesGoodman Brochure Goodman Installation 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
StyleA-Coil
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti Speed
Maximum CFM1200
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Does this system work with both R410A and R22 refrigerant? +
The specs indicate compatibility with both R410A and R22, though the condenser ships pre-charged with one type. Verify your installation requirements and existing system type before ordering, as mixing refrigerants causes equipment failure and voids warranty protection.
Can this horizontal unit fit in a standard attic installation? +
Yes. At 34.5 inches tall and 28.75 inches deep with right-side flue venting, it fits typical attic framing. Confirm your joist spacing and plumbing routing beforehand. You'll need 50 feet of insulated suction line, included per the spec sheet.
How does 13 SEER compare to newer high-efficiency systems? +
13 SEER meets 2006 federal minimums but trails modern units rated 16-21 SEER. Expect 15-25% higher summer cooling costs than premium systems. For moderate climates with moderate usage, the efficiency gap rarely justifies the equipment premium, making this suitable for budget-conscious replacements.
Why single-stage instead of variable-capacity operation? +
Single-stage keeps cost down by eliminating variable valve and control complexity. It cycles on and off fully rather than ramping capacity, slightly reducing part-load efficiency. Trade-off favors upfront affordability over operational optimization.
What does the 10-year warranty actually cover? +
Goodman's 10-year parts warranty covers manufacturer defects in compressors, heat exchangers, and components when registered. Labor, refrigerant, and field service calls are not covered. Verify coverage terms with your installer before purchase.

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