Independent Review · Updated June 2026

5 Ton 15 SEER 97% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency 5-ton system with 97% AFUE furnace and 16 SEER2 cooling

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 15 SEER 97% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system delivers excellent heating efficiency at 97% AFUE and solid cooling at 16 SEER2, making it ideal for homeowners prioritizing year-round energy savings in moderate to cold climates. The modulating furnace burner and variable-speed ECM blower keep operating costs down without sacrificing comfort.

Review

Goodman's 5-ton combined gas furnace and air conditioner system represents a practical choice for homeowners seeking reliable performance without premium pricing. This upflow configuration fits standard return-air setups in most homes, while the 120,000 BTU heating capacity handles moderate to large residential spaces. The system carries a 10-year warranty with online registration and includes a rebate opportunity, suggesting competitive positioning in the mid-range efficiency market.

The 97% AFUE furnace efficiency is genuinely strong, converting nearly all fuel to usable heat and reducing winter operating costs compared to 95% AFUE alternatives. Cooling performance delivers 54,000 BTU at 16 SEER2 using R410A refrigerant in a scroll compressor design. The modulating burner continuously adjusts flame height rather than cycling full-on or off, while the variable-speed ECM blower delivers up to 2000 CFM. Together, these features provide measured comfort control and lower energy waste.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency ranks among the best in gas heating, reducing heating bills significantly
  • 16 SEER2 cooling efficiency exceeds ENERGY STAR requirements, lowering summer cooling costs
  • Modulating burner stages optimize fuel consumption by matching heating demand rather than running full capacity
  • Variable-speed ECM blower motor adjusts airflow dynamically, improving comfort and reducing electricity use
  • PVC exhaust flue simplifies installation compared to traditional metal ductwork

Cons

  • Single-stage condenser limits cooling modulation, potentially cycling on/off more in mild weather
  • 73 dB noise level is moderately loud during operation, worth considering for noise-sensitive installations
  • Requires 208/230V single-phase power, limiting placement options in some older homes

Who Should Buy

Best For

Homeowners in northern regions or areas with significant heating seasons who want to reduce natural gas bills through top-tier furnace efficiency. Also suitable for those replacing aging systems and looking for a balanced approach to both heating and cooling performance.

Consider Alternatives If

Those in primarily cooling climates where the 16 SEER2 is good but not exceptional, or homes without 208/230V electrical service already available.

5 Ton 15 SEER 97% AFUE 120,000 BTU Goodman Gas Fur
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Installation

Installation requires 208/230V single-phase electrical service with breaker sizing between 29.6 and 50 amps. The PVC exhaust flue simplifies venting compared to traditional metal ducts. The A-coil style with right-side flue location suits standard upflow installations. Suction line insulation at 0.5 inches thickness meets refrigerant line requirements, and standard copper piping sizes match most existing residential setups.

Warranty & Reliability

The 10-year parts warranty applies upon online registration and covers manufacturing defects. This is standard for mid-tier Goodman equipment but requires proof of registration. Evaporator coil coverage is included separately. No labor coverage is mentioned, so installation and service costs fall to the homeowner after warranty period begins.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU54,000
Heating BTU120,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)48.000000
FeatureSpec
AHRI Certificate Number7424268
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Flue LocationRight
Energy StarYes
Burner StagesModulating
Fuel TypePropane, Natural Gas
Height30"
Width24.5"
Depth21"
ResourcesCAPT Installation Manual CAPT 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 Size50 amps
Min. Breaker Size29.6 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

What is the difference between this system's 16 SEER2 and older SEER ratings I see advertised? +
SEER2 is a newer testing standard (since 2023) using more realistic temperatures and conditions. It typically reads 15-20% lower than old SEER, so 16 SEER2 roughly equals 19-20 SEER1. This Goodman actually lists both ratings, with SEER1 shown as 16, making direct comparisons easier when shopping older inventory.
Can I install this in a downflow configuration, or is it truly upflow only? +
The specs list 'Upflow/Horizontal' configuration capability. However, the right-side flue location and A-coil design are optimized for upflow. Downflow conversion requires professional assessment, as exhaust venting and condensate drainage may need repositioning. Contact a licensed installer to confirm your specific space allows downflow.
How much will this system save me on heating compared to a 95% AFUE furnace? +
A 97% versus 95% AFUE saves roughly 2% of heating fuel annually. On a 100 million BTU winter season, that's roughly 2 million BTU gained. Actual dollar savings depend on gas prices and usage patterns, but expect 10-15% lower heating bills versus old 80% AFUE equipment.
Is this a good choice compared to higher SEER rating systems available today? +
At 16 SEER2, this is solid but not premium. Higher-end systems reach 18-20 SEER2 with variable-stage compressors, offering better performance in mild weather. This Goodman suits budget-conscious buyers; premium cooling performance costs 20-30% more upfront but recovers costs faster in hot climates.
What is the 10-year warranty actually cover if something fails after five years? +
The 10-year warranty covers defects in materials and workmanship. If a compressor or heat exchanger fails within that period, Goodman replaces the part. You pay labor and refrigerant charges. Warranty becomes void without online registration proof.

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