Independent Review · Updated June 2026

3 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Solid 3-ton combo system with 96% AFUE and 13 SEER for budget-conscious upgrades

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
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// Bottom Line
This Goodman system delivers strong heating efficiency at 96% AFUE and respectable cooling at 13 SEER, making it ideal for homeowners replacing older equipment on a moderate budget. The 80,000 BTU furnace and 36,000 BTU (3-ton) air conditioner work well for homes under 2,500 square feet in mild to moderate climates.

Review

The Goodman 3-ton gas furnace and air conditioner system strikes a practical middle ground between budget and performance. This upflow configuration combines an 80,000 BTU furnace with a 36,000 BTU condenser, making it suitable for homes around 2,000 to 2,500 square feet. At 96% AFUE and 13 SEER, it represents solid mid-tier equipment that performs adequately without premium pricing. The system uses R410A or R22 refrigerant and includes a reciprocating compressor with single-stage operation.

Performance-wise, the 96% AFUE rating means nearly all fuel converts to usable heat, delivering genuine savings on gas bills during winter months. The 13 SEER cooling efficiency is respectable but not exceptional in today's market. The multi-speed blower motor adapts to seasonal needs better than fixed-speed alternatives, running quieter during partial-load conditions. At 74 dB, operation is noticeable but acceptable. Maximum airflow reaches 1,600 CFM, sufficient for proper distribution in medium-sized homes without excess noise.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency significantly reduces heating costs, especially valuable in colder climates
  • 13 SEER cooling efficiency is solid for single-stage systems and meets baseline efficiency standards
  • Multi-speed blower motor provides better comfort control compared to single-speed alternatives
  • Compact 21x21x22 inch footprint fits tight mechanical rooms or closets
  • 10-year warranty with online registration covers manufacturing defects adequately
  • PVC exhaust flue compatibility simplifies venting compared to older metal requirements

Cons

  • 13 SEER is dated, not ENERGY STAR certified, and falls behind modern 16-18 SEER systems
  • Single-stage compressor cycles on and off rather than modulating, reducing efficiency and comfort in variable weather
  • 74 dB noise level is moderately loud and noticeable compared to quieter variable-speed units
  • No ENERGY STAR rating suggests this is entry-level equipment, not premium

Who Should Buy

Best For

Homeowners replacing 15+ year old systems who want reliable performance without premium pricing, or those in warmer climates where cooling demand is lower. Contractors installing in rental properties or value-conscious residential builds will appreciate the balance of decent specs and affordable pricing.

Consider Alternatives If

Buyers in hot climates needing maximum cooling efficiency, anyone seeking ENERGY STAR certification, or homeowners planning to stay 15+ years and wanting best-in-class efficiency should look at variable-stage systems with 16+ SEER ratings.

3 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furn
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Installation

Installation is straightforward for experienced HVAC technicians. The compact dimensions (21x21x22 inches) fit standard utility closets or basement locations. PVC exhaust venting simplifies flue routing compared to older metal systems. Refrigerant lines are standard 3/8 inch liquid and 7/8 inch suction sizes with 3/8 inch insulation. Electrical requirements are modest, 115V single-phase with 19.1 to 30 amp breaker sizing. Professional installation is strongly recommended for proper commissioning.

Warranty & Reliability

The 10-year warranty covers manufacturing defects when you register online, protecting your investment through the critical early years. This matches industry standard coverage for mid-tier equipment. The warranty is limited to parts and labor, and excludes wear items. Registration is straightforward and extends coverage beyond the standard 5-year period, making this warranty competitive for the price point.

Specifications

SKULS38783830
Brand/ManufacturerOnline Supply
Cooling BTU36,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)30.000000
FeatureSpec
ReplacesGSX130362, GSX130363, GSX130365
Energy StarNo
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 amps
Min. Breaker Size19.1 amps
Tonnage3 Ton
Valve TypeSweat
Height22"
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 RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti Speed
Maximum CFM1600
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

How does 13 SEER compare to newer systems? +
13 SEER is baseline efficiency. Modern systems achieve 16-18 SEER, reducing cooling costs 20-35% annually. Choose 13 SEER only if upfront budget is tight. Modern variable-stage units also provide quieter operation and better comfort.
Can this system handle R22 and R410A refrigerants? +
Yes, it accepts both R410A and R22 refrigerant, offering flexibility during installation. R410A is newer and more environmentally friendly. Your installer determines which refrigerant suits your existing line sets and regulations.
Is 96% AFUE furnace efficiency worthwhile? +
Absolutely. 96% AFUE converts nearly all gas to heat, saving 10-15% on heating versus 80% AFUE units. Over 10-15 years, this efficiency premium easily pays for itself through reduced gas consumption, especially in cold climates.
What size home does 80,000 BTU and 36,000 BTU serve? +
This combination typically heats and cools homes between 1,800 and 2,500 square feet depending on insulation, climate, and ductwork quality. Have a qualified contractor perform a load calculation to confirm proper sizing for your specific property.
Is the 10-year warranty transferable if I sell my home? +
Warranty terms vary by manufacturer. Verify with Goodman whether this registered warranty transfers to subsequent owners. Most Goodman systems include limited transferability with registration.

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