Independent Review · Updated June 2026

5 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Solid 5-ton combo system with 16 SEER2 cooling and 80% AFUE heating

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system works well for homeowners in mixed climates needing balanced heating and cooling without premium pricing. The 16 SEER2 rating and 80% AFUE efficiency deliver solid year-round performance for a mid-range investment.

Review

The Goodman 5-ton gas furnace and air conditioner system represents the practical middle ground in residential HVAC equipment. With a 54,000 BTU cooling capacity and 80,000 BTU heating output, this unit handles most single-family homes effectively. Online Supply's SKU LS381183850 attracts contractors who value proven Goodman reliability without premium pricing. The ENERGY STAR certification signals acceptable efficiency for buyers seeking balanced performance.

Performance metrics are straightforward and competitive. The air conditioner achieves 16 SEER2 efficiency with a scroll compressor operating at single-stage compression, delivering 2,000 CFM maximum airflow. The furnace provides 80% AFUE efficiency with two-stage burners, meaning 80 cents of every heating dollar convert to usable heat. Electrical requirements are modest at 120V single-phase 60Hz with a 29.6 to 50-amp breaker range, simplifying electrical work on most residential panels. The system uses R410A refrigerant and accepts 3/8-inch liquid and 1 1/8-inch suction lines with standard 1/2-inch insulation.

Pros & Cons

Pros

  • 16 SEER2 rating beats the spec sheet claim and qualifies for ENERGY STAR certification
  • Two-stage burner with 80,000 BTU heating capacity handles cold climates effectively
  • High-efficiency multi-speed blower motor maximizes comfort while reducing runtime cycles
  • Compact A-coil design fits tight spaces with modest 21 by 21 inch footprint
  • 10-year compressor warranty provides meaningful coverage with online registration

Cons

  • 80% AFUE is acceptable but trails high-efficiency condensing furnaces at 95%+ AFUE
  • Single-stage cooling compressor cycles on and off rather than modulating for precision
  • 73 dB noise level at maximum output may concern noise-sensitive homeowners

Who Should Buy

Best For

Contractors and homeowners replacing aging systems in moderate climates who prioritize reliability and reasonable upfront cost over premium efficiency. This system suits homes where natural gas heating is primary and cooling handles summer loads predictably.

Consider Alternatives If

Buyers in extreme climates, those chasing maximum efficiency rebates, or homeowners with strict noise restrictions should explore variable-capacity or condensing alternatives.

5 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furn
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Installation

Installation requires metal exhaust flue venting for the furnace, metal ductwork connection, and proper lineset routing with the provided 50-foot insulated suction line. The compact 21 by 21 by 30-inch condenser and upflow A-coil configuration fit basements, crawlspaces, and mechanical closets with minimal clearance issues. Licensed technicians typically complete installation in four to six hours for standard installations without major ductwork modifications.

Warranty & Reliability

The 10-year compressor and parts warranty activates upon online registration and provides solid protection against manufacturing defects. Goodman's evaporator coil carries separate coverage noted in documentation. This warranty is standard for mid-tier equipment and offers meaningful peace of mind, though premiums models sometimes extend to 12 years.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU54,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical120 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"
Width21"
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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorHigh Efficiency Multi-Speed
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypeGas
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

How does 16 SEER2 compare to my old air conditioner? +
A 16 SEER2 system uses approximately 50% less electricity for cooling than a 10 SEER unit from 15 years ago. Real savings depend on your climate, with homes in hot regions seeing $150 to $300 annual reductions compared to aging equipment. That translates to payback in five to eight years on efficiency upgrades.
Can this system use both R410A and R22 refrigerant? +
The specs indicate compatibility with either R410A or R22, but confirm refrigerant type with your installer. R410A is standard for new systems and required by EPA regulations. Some technicians may recommend R22 for legacy conversions, though supplies are diminishing.
Will 80% AFUE heating cost significantly more to run than high-efficiency furnaces? +
An 80% AFUE furnace wastes 20 cents per dollar in exhaust heat, while 95% AFUE condensing models waste only 5 cents. Over a heating season in cold climates, this difference equals $400 to $600 additional cost. The payoff improves in very cold regions or with long heating seasons.
Is the single-stage compressor less efficient than variable-capacity models? +
Yes, single-stage compressors cycle on and off, consuming extra energy during startup and shutdown. Variable-speed units modulate capacity smoothly, reducing cycling losses. However, the 16 SEER2 rating already accounts for this trade-off, making it honest rather than inflated.
Does the 10-year warranty cover labor costs? +
The warranty covers parts and compressor replacement but typically excludes labor. Review your specific warranty document or ask your installer about extended service plans. Online registration is required within a defined timeframe to activate coverage.

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