Independent Review · Updated June 2026

3 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency Goodman combo system with 96% AFUE and strong cooling capacity

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system excels for homeowners upgrading from older equipment and contractors seeking reliable, efficient split systems. The 96% AFUE furnace and 16 SEER cooling unit deliver solid year-round performance at accessible pricing, though some spec discrepancies warrant careful review before purchase.

Review

This Goodman gas furnace and air conditioner combination represents a practical, efficient choice for homeowners and contractors seeking reliable year-round comfort. Positioned as a 3-ton system, the unit delivers 120,000 BTU heating capacity with 96% AFUE efficiency and 34,800 BTU cooling output. The two-stage gas burner and single-stage scroll compressor provide established reliability without unnecessary complexity. Energy Star certification confirms performance standards, and the upflow configuration suits typical residential installations across North America.

Performance data shows solid credentials across both heating and cooling. The 96% AFUE furnace ranks among efficient residential gas units, significantly outperforming 80-85% baseline equipment and reducing annual heating costs by roughly 10-15%. Cooling registers 16 SEER1 (note that SEER2 ratings differ), which represents competent but not premium efficiency. The multi-speed ECM blower motor optimizes airflow between 0-2000 CFM depending on demand. At 30 pounds and operating at 73.5 dBA, the unit fits standard installations with manageable noise output.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs substantially compared to 80-85% baseline units
  • Two-stage burner allows modulating heat output for better comfort and efficiency at partial load
  • Multi-speed ECM blower motor adapts to heating and cooling demands, improving efficiency
  • Energy Star certified system qualifies for utility rebates in many regions
  • Plastic PVC exhaust flue compatibility simplifies installation in many existing homes
  • 10-year warranty with online registration provides solid manufacturer backing

Cons

  • Spec sheet shows conflicting tonnage ratings (3 ton title versus 5 ton specification) creating confusion
  • 34,800 BTU cooling capacity suggests 3 ton equipment despite 5 ton listing, requiring clarification before purchase
  • 73.5 dBA operation at full capacity exceeds quiet operation expectations for some homeowners
  • R410A or R22 refrigerant options create uncertainty about which unit ships and availability concerns

Who Should Buy

Best For

Homeowners in moderate climates upgrading from 15-year-old furnaces and AC units will see meaningful energy savings from the 96% AFUE efficiency. Contractors valuing reliable, straightforward installations with strong warranty support should add this to their regular lineup.

Consider Alternatives If

Buyers seeking cutting-edge SEER2 ratings or those requiring variable-capacity compressors for extreme climate zones should explore higher-tier offerings.

3 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
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Installation

Installation requires 208/230V single-phase 60Hz power with breaker sizing between 18.7 and 30 amps. The plastic PVC exhaust flue option simplifies venting for many installations. Upflow configuration fits standard basements and utility closets. Technicians should verify the liquid line (3/8-inch) and suction line (7/8-inch) sizing when connecting to existing ductwork and outdoor condenser units. Documentation includes CAPF installation manuals, though reading PDF resources is essential.

Warranty & Reliability

Goodman provides a 10-year parts warranty when owners register the system online at purchase. This covers the compressor, heat exchanger, and major components, though labor costs remain the buyer's responsibility. Registration is straightforward and enables warranty claim processing without hassle. Extended coverage typically requires registration completion within specified timeframes, so new owners should prioritize this step immediately.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU34,800
Heating BTU120,000
RefrigerantR410A or R22
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73.5
Weight (in lbs)30.000000
FeatureSpec
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti-Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Flue LocationRight
Energy StarYes
Burner StagesTwo
Fuel TypeGas
Height30"
Width24.5"
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.
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size30 amps
Min. Breaker Size18.7 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Why does the spec sheet list both 3 ton and 5 ton ratings? +
The product title states 3 ton, but specifications show 5 ton tonnage with 34,800 BTU cooling capacity. This discrepancy is significant and should be clarified with the seller before purchase. Contact Online Supply directly to confirm actual equipment specifications and ensure compatibility with your existing components.
Can this furnace connect to my existing AC condenser unit? +
The furnace's 3/8-inch liquid line and 7/8-inch suction line sizing match standard 3-ton equipment. Before connecting, verify your outdoor condenser tonnage matches these line specifications. Mismatched systems create efficiency losses and potential compressor damage, so professional assessment is essential.
How much will this system reduce my energy bills? +
The 96% AFUE furnace cuts heating losses to 4%, compared to roughly 15-20% loss in 80-85% equipment. Actual savings depend on climate, insulation, and usage patterns. In northern climates, annual heating cost reductions of 10-15% are typical when replacing older furnaces.
Is 16 SEER1 cooling efficiency good enough? +
16 SEER1 represents solid mid-tier cooling performance, roughly 20-30% more efficient than 13 SEER baseline units. However, SEER2 ratings (newly mandated) typically score 15-20% lower than SEER1 equivalents. For premium efficiency, consider 18+ SEER1 or variable-capacity systems.
What does the 10-year warranty actually cover? +
Goodman covers compressor, heat exchanger, and major parts for 10 years with registration. Labor and refrigerant are excluded. Most claims process without dispute if installed properly by licensed technicians and maintenance is documented.

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