Independent Review · Updated June 2026

5 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency two-stage system combines 96% furnace with 18 SEER cooling.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 16 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 is ideal for contractors and homeowners in moderate to cold climates who want solid efficiency without premium pricing. The 96% AFUE furnace paired with 18 SEER cooling delivers excellent year-round performance for mixed-use applications.

Review

The Goodman 5-ton two-stage system represents a practical middle ground in the residential HVAC market. This upflow unit combines a 120,000 BTU furnace with matching 57,000 BTU cooling capacity, making it suitable for homes in the 2,000 to 2,500 square foot range. Goodman has built a solid reputation among contractors for providing equipment that performs reliably without inflated pricing. This particular SKU stands out for offering both strong heating and cooling efficiency in a single package.

The furnace delivers 96% AFUE, meaning nearly all fuel converts to usable heat, which translates to measurable savings on winter utility bills. The cooling side matches with 18 SEER efficiency, placing it well above the federal 13 SEER minimum. The two-stage design lets the compressor and burners run at reduced capacity during mild weather, improving comfort and reducing compressor cycling. A multi-speed ECM blower adapts airflow to match actual load, reducing energy waste during partial-load operation.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs and qualifies for some utility rebates in cold climates
  • 18 SEER cooling efficiency exceeds ENERGY STAR minimum, saving roughly 15-20% on summer cooling versus baseline units
  • Two-stage heating and cooling allows the system to run at partial capacity during mild weather, extending equipment life and reducing wear
  • Multi-speed ECM blower motor adapts to varying load conditions and improves comfort by reducing temperature swings
  • Sweat valve connections and standard R410A refrigerant simplify field service and parts availability

Cons

  • Not ENERGY STAR certified, which may disqualify buyers from certain regional rebate programs despite solid efficiency numbers
  • 74 dB noise level is slightly louder than some competing premium brands and may be noticeable in quiet residential settings
  • Requires 208/230V single-phase power, limiting installation options in homes with older 120V-only service

Who Should Buy

Best For

Contractors looking for a reliable mid-tier system that balances efficiency and affordability, and homeowners in climate zones 4-6 who want good heating efficiency without custom equipment costs. This unit fits well in new construction and replacement projects where code-required efficiency is 16 SEER or higher.

Consider Alternatives If

Buyers in ENERGY STAR rebate programs or those prioritizing ultra-quiet operation should compare alternative models that carry ENERGY STAR certification or lower decibel ratings.

5 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
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Installation

This upflow A-coil unit requires standard 3/8 inch liquid and 7/8 inch suction lines for R410A refrigerant. The system needs 208/230V, single-phase, 60 Hz power with breaker capacity between 36.7 and 60 amps. The plastic PVC flue exits to the right side with maximum 2,000 CFM airflow through ductwork. Installation follows Goodman's published manual and suits most retrofit and new construction applications.

Warranty & Reliability

Goodman includes a standard 10-year parts warranty when you register the unit online after installation. This coverage protects against manufacturing defects in compressors, heat exchangers, and electrical components. Online registration is straightforward and extends protection, which is important given the scroll compressor design that benefits from quick fault diagnosis.

Specifications

SKUTX5N4
Brand/ManufacturerGoodman
Cooling BTU57,000
Heating BTU120,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)2.500000
FeatureSpec
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
Tonnage5 Ton
StyleA-Coil
Height38.25"
Width35.5"
Depth35.5"
ResourcesGoodman Specifications Goodman Installation Manual 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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti-Speed - ECM
Maximum CFM2000
Flue LocationRight
Energy StarNo
Burner StagesTwo
Fuel TypeGas
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size60 amps
Min. Breaker Size36.7 amps
Valve TypeSweat

Frequently Asked Questions

How does the 18 SEER rating compare to what I currently have? +
If your existing system is 10-13 SEER, expect 20-30% lower cooling costs. The 18 SEER figure means efficient operation at part-load conditions, which is when most systems actually run. Two-stage cooling lets the compressor modulate, avoiding the on-off cycling that wastes energy in single-stage units.
Will this system fit in my existing ductwork and electrical panel? +
The 38.25 inch height and 35.5 inch width fit standard attic and closet spaces. You'll need 208/230V, single-phase service with 36.7 to 60 amps available. If your home has 120V only service or undersized electrical, you'll need upgrades before installation.
Is 96% AFUE worth the extra cost over 92% units? +
Yes, on heating bills. The 4% efficiency gain translates to roughly 10-15% lower natural gas costs depending on climate and usage. Over a 15-year lifespan in cold regions, that premium pays back within 3-5 years through fuel savings alone.
How does Goodman compare to Lennox or Carrier in this tonnage? +
Goodman delivers equivalent efficiency at lower price, making it the value choice. Carrier and Lennox offer more variable staging and Wi-Fi controls as standard, but cost 20-30% more. For contractors focused on performance per dollar, Goodman wins.
What does the 10-year warranty actually cover if something breaks? +
Parts only. Refrigerant, labor, and diagnostics are your responsibility. The scroll compressor is covered, as are heat exchanger and electrical boards. Online registration is required, so complete it immediately after installation to activate coverage.

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