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 combines 97% AFUE heating with 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
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// Bottom Line
This Goodman system is ideal for homeowners in moderate climates seeking maximum heating efficiency without overspending on cooling capability. The 97% AFUE furnace and modulating burner deliver exceptional gas-to-heat conversion, while the 16 SEER2 air conditioner handles moderate cooling loads efficiently.

Review

Goodman's 5-ton upflow system represents a thoughtful middle-ground approach for regions where heating demand outpaces cooling needs. The 120,000 BTU furnace with 97% AFUE efficiency sits in the premium class for gas furnaces, while the 54,000 BTU air conditioner delivers respectable cooling without oversizing for mild summers. This SKU LS381183850 carries Energy Star certification and an AHRI certificate number 7424268, confirming lab-verified performance. Aimed at cost-conscious contractors and homeowners willing to prioritize winter comfort over summer cool-down speed, the system strikes a practical balance.

Performance data tells the story here. The furnace's modulating burner stages output between 40,000 and 120,000 BTU, eliminating the energy waste of traditional on-off cycling. The 16 SEER2 air conditioner uses a scroll compressor for smooth operation at 73 dBA, acceptable for most residential settings. Variable-speed ECM blower reaches 2,000 CFM maximum and adjusts continuously, consuming substantially less electricity than constant-speed alternatives. With R410A or R22 refrigerant compatibility, this unit offers installation flexibility, though R410A is the newer standard. The 10-year warranty with online registration provides reasonable long-term protection.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency means minimal gas waste, translating to lower winter heating bills in climates with moderate heating demand
  • 16 SEER2 cooling efficiency beats the Energy Star minimum and qualifies for utility rebates in most regions
  • Modulating burner adjusts output in real time, reducing on-off cycling and improving comfort consistency
  • Variable-speed ECM blower motor ramps airflow intelligently, cutting auxiliary electricity consumption by 25-40% versus fixed-speed units
  • Scroll compressor design runs quieter at 73 dBA and produces fewer vibrations than rotary competitors

Cons

  • Single-stage condenser cannot modulate cooling output, so it short-cycles on mild days instead of running continuously at reduced capacity
  • 54,000 BTU cooling capacity is borderline for 5 tons in hot climates, meaning longer run times in peak summer heat
  • Plastic PVC flue requirement limits retrofit applications in older homes with masonry chimneys

Who Should Buy

Best For

Homeowners in northern and moderate climates who heat more than they cool, particularly those replacing aging furnaces with poor AFUE ratings. Contractors installing complete system replacements where heating dominates energy usage will see strong customer satisfaction.

Consider Alternatives If

Buyers in high-heat regions like Arizona and Texas should look at higher SEER2 units, and those with existing masonry chimney systems may face expensive flue modifications.

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

Upflow configuration suits basements and utility closets with overhead ductwork distribution. The 30 by 24.5 by 21 inch footprint fits standard mechanical spaces without extensive retrofitting. Electrical requirements are modest, 115V single-phase 60 Hz service with breaker sizing between 29.6 and 50 amps. PVC flue requirement allows horizontal and vertical venting through exterior walls or rooflines, simplifying many installations. Suction line insulation at 1/2 inch thickness and 50-foot maximum length are standard for R410A systems.

Warranty & Reliability

The 10-year parts and compressor warranty covers defects when registered online within 30 days of purchase. This exceeds typical 5-year baseline coverage, adding meaningful value. Evaporator coil coverage extends protection to matched indoor components. Registration is simple but mandatory, so skip this step and you forfeit extended protection. Coverage excludes labor, refrigerant, and damage from improper installation or maintenance.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU54,000
Heating BTU120,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years 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
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.
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
Burner StagesModulating
Fuel TypePropane, Natural Gas
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

How much will this furnace reduce my heating costs compared to an 80% AFUE unit? +
A 97% AFUE furnace converts 97 cents of every gas dollar into usable heat versus 80 cents for older units. On a $1,500 annual heating bill, you'd save roughly $255 per year. Over a 15-year lifespan, that's $3,825 in gas savings, easily offsetting the premium price.
Can this system work with my existing ductwork? +
Yes, upflow configuration works with standard overhead ducting. However, ensure ducts are sized for 2,000 CFM maximum airflow. Have a technician measure existing ductwork static pressure, balancing dampers if needed. Undersized ducts reduce efficiency and comfort.
Is 16 SEER2 enough for summer cooling in hot climates? +
16 SEER2 is good but not optimal for extreme heat regions. At 54,000 BTU cooling output, expect longer run times above 95 degrees. For Arizona or Houston climates, consider 18-20 SEER2 units with variable-capacity compressors for better part-load efficiency and shorter cycling.
How does the modulating burner affect comfort? +
Modulating burners adjust 40,000 to 120,000 BTU output in small increments, maintaining steadier temperatures without the temperature swings of on-off burners. You'll notice less cycling noise and more stable home temperature, especially on mild winter days.
What happens if I don't register the warranty? +
Without online registration within 30 days, warranty defaults to 5 years instead of 10. Registration takes 5 minutes and unlocks $2,000-$4,000 worth of coverage extension on compressor and parts.

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