Independent Review · Updated June 2026

2.5 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal

96% AFUE furnace with 16 SEER2 cooling delivers high efficiency at mid-range pricing

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
2.5 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal
Current Price
$2666
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This system works best for homeowners upgrading older equipment who want reliable Goodman quality without premium pricing. The 96% AFUE furnace and 16 SEER2 air conditioner combination delivers measurable energy savings, making it ideal for moderate climates where both heating and cooling run regularly throughout the year.

Review

Goodman's 2.5-ton gas furnace and air conditioner combination sits squarely in the middle-market segment, targeting homeowners who want reliable equipment without flagship pricing. Manufactured by a brand with deep contractor relationships, this horizontal configuration works well in attics, crawlspaces, or utility closets. The $2,666 price point positions it between budget models and premium systems, making it accessible for replacement projects where efficiency rebates offset installation costs.

The heating side delivers impressive efficiency with a 96% AFUE rating and two-stage burner, meaning 96 cents of every heating dollar actually heats your home. Cooling efficiency reaches 16 SEER2, qualifying for Energy Star status and opening doors to utility rebates in many regions. The variable-speed ECM blower motor continuously adjusts airflow from 0 to 1,200 CFM, reducing excess runtime during partial-load conditions. R410A refrigerant compatibility ensures long-term availability, though the system also accepts legacy R22 refrigerant for service flexibility.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% units
  • 16 SEER2 rating qualifies for Energy Star and many utility rebates, lowering installed cost
  • Variable-speed ECM blower motor automatically adjusts output, improving comfort and reducing runtime
  • Two-stage burner adapts to heating demand, preventing short-cycling and improving efficiency
  • 10-year parts warranty with online registration provides solid protection for residential use

Cons

  • Spec sheet lists conflicting tonnage information (2.5 ton in title but 3 ton in specs), creating confusion
  • 29,000 cooling BTU output doesn't match stated 2.5-ton capacity (30,000 BTU standard), suggesting possible mislabeling
  • 71.5 dB noise level ranks higher than quieter competitors, noticeable in quiet neighborhoods
  • Single-stage compressor without variable capacity limits efficiency gains in mild weather conditions

Who Should Buy

Best For

Homeowners with moderate heating and cooling needs in areas without extreme temperature swings will see the best ROI on this unit. Contractors valuing straightforward service accessibility and Goodman's parts availability will appreciate the straightforward single-stage design.

Consider Alternatives If

Buyers in very cold climates needing maximum heating output or those seeking whisper-quiet operation should evaluate competitors, as this unit's single-stage compressor and 71.5 dB level don't lead the market.

2.5 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Fu
$2666
Buy at HVACDirect →

Installation

This horizontal A-coil design requires 115V single-phase 60Hz power with a 17.1 to 25-amp breaker, standard in most homes. The plastic PVC exhaust flue simplifies venting compared to metal alternatives. Technicians will need to run 3/8 inch liquid and 7/8 inch suction lines, with the suction line requiring 3/4 inch insulation. Dimensions of 34.5 inches tall by 17.5 inches wide allow fit in most utility spaces.

Warranty & Reliability

Online Supply provides a 10-year parts warranty activated through online registration, covering component failures under normal residential use. This warranty excludes labor costs but protects against compressor, blower motor, and heat exchanger failures. Registration is mandatory to activate coverage, so retain proof of installation and complete the process immediately after commissioning.

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 Install 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 Number7368834
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM1200
Burner StagesTwo
Fuel TypePropane, Natural Gas
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Why does the spec sheet list both 2.5 ton and 3 ton ratings? +
This appears to be a data inconsistency. The title claims 2.5 tons, but specifications show 3 tons and 29,000 cooling BTU. Verify the correct tonnage with your installer before purchase, as it affects ductwork sizing and system matching. Request the AHRI certificate number 7368834 to confirm actual capacity.
Can this system work in my attic with limited clearance? +
Possibly. At 34.5 inches tall and 17.5 inches wide, it fits most horizontal installations. However, the system needs proper airflow around the condenser coil and adequate clearance for service access. Have an HVAC technician measure your space before ordering to avoid installation delays.
How much can I expect to save on heating bills compared to my 80% AFUE furnace? +
That 96% versus 80% efficiency difference translates to roughly 16% lower heating costs if all other factors remain equal. A $1,500 annual heating bill could drop to $1,260, saving $240 yearly. Regional fuel prices and usage patterns affect actual savings, so calculate based on your local heating degree days.
Is 16 SEER2 competitive with current air conditioner standards? +
Yes, 16 SEER2 represents solid mid-tier cooling efficiency. High-efficiency units reach 18-24 SEER2, but they cost significantly more. This rating qualifies for most utility rebates and matches well with the furnace's overall reliability focus rather than maximum efficiency.
What happens if I don't register for the warranty? +
Your warranty becomes void. Goodman requires online registration within a specified period after installation to activate the 10-year parts coverage. Have your installer complete this immediately upon system startup to avoid losing protection.

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