Independent Review · Updated June 2026

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

High-efficiency 5-ton system delivers 16 SEER cooling with 96% AFUE heating.

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 - Horizontal
Current Price
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// Bottom Line
This Goodman system suits homeowners prioritizing year-round efficiency in moderate climates without breaking the budget. The 16 SEER rating and 96% AFUE make it competitive for energy-conscious buyers willing to accept single-stage cooling for solid savings.

Review

Goodman's 5-ton horizontal gas furnace and air conditioner system targets mainstream residential replacement market, where balance between efficiency and affordability matters most. The 96% AFUE heating combined with 16 SEER cooling positions it as a solid mid-tier performer. This horizontal A-coil configuration suits homes with limited basement space, and the two-stage burner provides flexibility that single-stage systems lack. Real-world contractors value Goodman for straightforward installation and parts availability.

The numbers tell a practical story. Cooling capacity hits 54,000 BTU with 16 SEER efficiency, translating to roughly 25% lower summer bills versus older 13 SEER equipment. Heating output reaches 120,000 BTU at 96% AFUE, recovering almost all fuel energy as warmth. The scroll compressor and ECM blower motor support this efficiency, with maximum CFM at 2000 for adequate airflow distribution. Single-stage compression limits modulation compared to variable alternatives, but both-stage gas burner operation softens this gap.

Pros & Cons

Pros

  • 96% AFUE furnace means heating costs stay low, especially for gas-heavy climates where winter heating dominates the bill
  • 16 SEER cooling efficiency qualifies as Energy Star, delivering meaningful AC cost reductions in summer months
  • Two-stage gas burner and ECM multi-speed blower provide flexible operation and comfort modulation
  • Scroll compressor is proven for reliability, with fewer moving parts than alternatives
  • Lifetime heat exchanger warranty plus 10-year unit and parts coverage with registration offers genuine protection

Cons

  • Single-stage compressor limits capacity modulation, so cooling cycles on and off rather than ramping smoothly
  • 73 dB noise level is louder than high-end variable systems, noticeable to nearby residents during operation
  • Horizontal A-coil configuration limits installation flexibility for some homes and retrofit scenarios

Who Should Buy

Best For

Homeowners upgrading 10-plus-year-old systems in mixed climates where heating and cooling are both significant loads appreciate the balanced efficiency and warranty depth. Budget-conscious buyers valuing upfront savings and straightforward installation will find solid value here.

Consider Alternatives If

Skip this if you need whisper-quiet operation or live in extreme heat zones where variable-stage cooling pays for itself quickly through energy savings.

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

Horizontal mounting requires right-side flue exit and PVC exhaust venting, common in modern homes but worth confirming during assessment. At 48 pounds and 34.5 inches tall, physical handling is manageable for two installers. Electrical demand ranges 29.6 to 50 amps at 115V single-phase, so verify existing breaker capacity before ordering. Suction and liquid line sizes (1 1/8 inch and 3/8 inch respectively) demand proper refrigerant tubing and insulation thickness of 1/2 inch minimum.

Warranty & Reliability

Lifetime heat exchanger coverage protects against cracking, the most expensive failure point in furnaces. Ten-year unit replacement and parts warranties apply with online registration, reducing out-of-pocket costs for covered repairs during the critical first decade. Goodman's registration process is straightforward, and parts availability remains strong due to market penetration among contractors.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU54,000
Heating BTU120,000
RefrigerantR410A
Electrical115 V. 1 Phase 60 Hz
WarrantyLifetime Heat Exchanger, 10 Years Unit Replacement, and 10 Years Parts with Online Registration
Decibel Level (dBA)73
Weight (in lbs)48.000000
FeatureSpec
Energy StarYes
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
Height34.5"
Width24.5"
Depth28.75"
ResourcesGMEC96 Installation Manual GMEC96 Specifications Sheet GMEC96 Owner's Manual GMEC96 Service Manual GMEC96 Replacement Parts Manual GMEC96 Brochure Goodman Furnace 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 Line1 1/8"
StyleA-Coil
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti-Speed - ECM
Maximum CFM2000
Flue LocationRight
Burner StagesTwo
Fuel TypeGas
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

What does 16 SEER actually mean for my summer energy bill? +
SEER measures cooling efficiency over a season. A 16 SEER unit uses roughly 25% less electricity than a 13 SEER system for identical cooling output. On a 6-month cooling season costing $1200, you'd save approximately $300 annually, recovering system premium in 5-7 years depending on local rates and usage patterns.
Can I install this in a horizontal attic space above my basement? +
Yes, horizontal A-coil configuration supports attic or crawlspace mounting. Confirm right-side flue access for PVC exhaust venting, and verify structural support for the 48-pound weight. Ensure ductwork connects smoothly without excessive bends that restrict the 2000 CFM maximum airflow rating.
How does single-stage cooling affect comfort versus variable-speed systems? +
Single-stage compressors run at full capacity or off, cycling frequently in mild weather. You'll notice temperature swings of 2-3 degrees versus <1 degree with variable systems. For moderate climates with less extreme temperature swings, this trade-off is acceptable at this price point.
Is Goodman equipment reliable compared to premium brands like Carrier or Lennox? +
Goodman offers solid reliability with proven scroll compressors and simpler controls, reducing failure points. Premiums offer quieter operation and tighter efficiency bands. Independent studies show similar 15-year survival rates across brands when properly maintained, making Goodman a value play.
What happens to my warranty if I don't register online? +
Registration unlocks 10-year parts and unit replacement coverage. Without registration, you retain limited manufacturer coverage. Registration takes 10 minutes online with your serial number and installation date, so it's worth completing immediately after installation.

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