Independent Review · Updated June 2026

3 Ton 15 SEER 98% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency Goodman system delivers 16 SEER2 cooling with modulating heat for balanced comfort

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 15 SEER 98% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This 5-ton Goodman system fits homes needing strong cooling and reliable heating in moderate climates. The 16 SEER2 rating and 97% AFUE furnace deliver lower utility bills, while the modulating burner and variable-speed blower provide consistent comfort without the premium price of fully modulating compressors.

Review

The Goodman 5-ton system reviewed here represents a solid mid-tier choice for residential HVAC replacement. Positioned between budget units and premium variable-capacity systems, this combination furnace and air conditioner handles demanding cooling loads while maintaining steady heating through modulating gas burners. Goodman's reputation for straightforward engineering and parts availability gives contractors confidence in long-term serviceability. At this capacity and efficiency tier, it competes directly with Lennox XC16 and Carrier 25HNH36 units.

Performance specs reveal a well-balanced design emphasizing practical efficiency over cutting-edge features. The 16 SEER2 cooling rating, backed by AHRI Certificate 7424266, delivers 34,800 BTU of effective cooling from the scroll compressor operating at single-stage capacity. The furnace generates 80,000 BTU heating with 97% AFUE, using a modulating burner to reduce temperature swings. Variable-speed ECM blower with maximum 1,600 CFM output adjusts airflow based on load, minimizing unnecessary energy consumption. The 115V single-phase 60Hz electrical requirement fits standard residential service.

Pros & Cons

Pros

  • 16 SEER2 cooling efficiency exceeds the 15 SEER rating advertised, with Energy Star certification
  • 97% AFUE furnace with modulating burner stages adjusts heating output for steady temperatures
  • Variable-speed ECM blower motor reduces runtime and energy waste compared to single-speed units
  • Scroll compressor with single-stage cooling provides reliable, proven performance across residential applications
  • PVC exhaust flue compatible with modern venting systems, simplifying retrofits and new installations

Cons

  • Single-stage compressor cannot modulate cooling capacity, leading to higher short-cycling in mild weather
  • 73.5 dB noise level is moderately loud and may be noticeable in quiet neighborhoods
  • 5-ton capacity oversizes many residential applications, reducing efficiency in homes under 3,000 square feet

Who Should Buy

Best For

Contractors and homeowners installing systems in homes between 2,500 and 4,000 square feet in humid or warm climates will benefit from the higher cooling capacity and strong heating backup. This system suits mixed-use homes where both seasonal demands matter equally.

Consider Alternatives If

Skip this if you need a smaller capacity for efficient operation in mild climates, or if budget-conscious operation during shoulder seasons is a priority, since the single-stage compressor will short-cycle frequently.

3 Ton 15 SEER 98% AFUE 80,000 BTU Goodman Gas Furn
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Installation

Installation follows straightforward A-coil upflow configuration compatible with basements, attics, or utility closets. Standard 3/8-inch liquid line and 7/8-inch suction line with 3/4-inch insulation thickness keep setup consistent with typical ductwork. PVC exhaust flue requirement simplifies venting compared to metal alternatives. Most licensed HVAC contractors complete installation in one to two days. Electrical needs require 18.7 to 30 amp breaker sizing, manageable for homes with adequate service capacity.

Warranty & Reliability

Goodman includes 10-year coverage when you register online after purchase, protecting against manufacturer defects in compressor, heat exchanger, and major components. This mid-tier warranty matches most competitor offerings at this price point. Parts availability through Online Supply and authorized distributors reduces downtime if service becomes necessary. Registration is required to activate coverage, so save documentation.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU34,800
Heating BTU80,000
RefrigerantR410A
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73.5
Weight (in lbs)30.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size30 amps
Min. Breaker Size18.7 amps
Tonnage5 Ton
Height34.5"
Width21"
Depth28.75"
ResourcesGoodman Brochure Goodman Installations Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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 Line7/8"
StyleA-Coil
AHRI Certificate Number7424266
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM1600
Burner StagesModulating
Fuel TypePropane, Natural Gas
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

How does the 16 SEER2 rating compare to the 15 SEER advertised in the title? +
The specs show actual 16 SEER2 efficiency, exceeding the conservative marketing claim. SEER2 uses stricter testing conditions than older SEER ratings, so 16 SEER2 is roughly equivalent to 18-19 traditional SEER. This delivers lower cooling costs for most homeowners, especially in warm climates where the AC runs frequently.
Is this 5-ton system right for my 3,000 square foot home? +
Probably oversized. Most 3,000 square foot homes need 3 to 4 tons of cooling capacity. A 5-ton system will cool your home quickly but shut off frequently on mild days, wasting energy and reducing efficiency. Have a Manual J calculation performed before purchasing to confirm actual load requirements.
What does modulating burner mean for heating performance? +
The modulating burner adjusts flame intensity across multiple stages rather than running full blast or shutting off completely. With 97% AFUE efficiency, this provides more consistent indoor temperatures during winter and reduces the draft of cold air when the burner cycles on and off. You'll notice steadier comfort compared to single-stage furnaces.
Can I install this myself if I have HVAC experience? +
Not recommended. EPA regulations require licensed technicians to handle refrigerant charge and evacuation. Improper installation voids warranty and creates safety hazards with R410A refrigerant. Hire certified installers familiar with Goodman equipment to ensure proper airflow, electrical connections, and flue venting.
Does the 10-year warranty cover labor or only parts? +
Goodman's standard warranty covers parts only, not labor. Contractor service calls and labor costs are your responsibility. Some installing contractors offer additional labor coverage through their own warranties, so ask before purchase if extended service protection matters to your budget.

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