Independent Review · Updated June 2026

3 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Budget-friendly 3-ton system with solid 80% efficiency and surprising cooling power

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
$647
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system is ideal for contractors and homeowners seeking a no-nonsense heating and cooling solution at an unbeatable price point. At $647, you're getting legitimate 80% AFUE heating with two-stage burners and a 3-ton cooler rated at 14 SEER, making it genuinely competitive for mid-range residential projects.

Review

The Goodman 3-ton upflow system occupies a practical middle ground in the residential HVAC market. At $647, this matched unit combines an 80,000 BTU furnace with a 34,800 BTU air conditioner, positioned squarely for mid-range applications where budget matters as much as performance. Online Supply's offering targets contractors managing multiple installations and homeowners replacing aging equipment without financial flexibility for premium systems.

Real-world performance centers on these numbers: 80% AFUE with two-stage burners, 14 SEER cooling, and a high-efficiency multi-speed blower reaching 2000 CFM. The system uses R410A refrigerant with standard 3/8-inch liquid and 7/8-inch suction lines, sized for straightforward installations. Energy Star certification and a 16 SEER1 rating confirm the cooling efficiency claim. The scroll compressor handles single-stage operation, meaning less cycling efficiency during partial-load conditions.

Pros & Cons

Pros

  • Exceptional value at $647 for a matched 3-ton gas furnace and air conditioning system
  • 80% AFUE with two-stage burners delivers consistent, efficient heating across variable weather
  • High-efficiency multi-speed blower motor maxes out at 2000 CFM for better air distribution
  • 34,800 BTU cooling capacity with 14 SEER rating handles summer loads effectively
  • Energy Star certified with 16 SEER1 rating shows solid efficiency credentials
  • 10-year warranty with online registration provides reasonable coverage at this price tier

Cons

  • 80% AFUE is acceptable but trails high-efficiency furnaces rated 90-95% AFUE
  • Single-stage condenser means less modulation during mild cooling days, slightly higher operating costs
  • 73.5 dB noise level is moderately loud, noticeable in quieter installations

Who Should Buy

Best For

Contractors installing budget-conscious residential systems and homeowners replacing older equipment in 1200-1400 square foot homes. This system makes sense when you need reliable heating and cooling without premium efficiency pricing.

Consider Alternatives If

Buyers in high-efficiency mandate areas or those seeking premium SEER2 ratings should explore 95% AFUE furnaces and variable-speed cooling systems instead.

3 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furn
$647
Buy at HVACDirect →

Installation

This upflow A-coil configuration measures 38.25 inches tall by 29 inches wide and deep, fitting standard utility closets or basements. The system requires 208/230V single-phase power with a minimum 18.7 amp breaker and maximum 30 amp capacity. Metal exhaust flue is mandatory, and the 50-foot suction line with 3/4-inch insulation comes pre-included, simplifying field preparation.

Warranty & Reliability

The 10-year warranty requires online registration but delivers meaningful coverage for parts and labor during the critical ownership window. At this price point, a decade of protection represents solid value, though homeowners should complete registration immediately upon purchase to lock in coverage.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU34,800
Heating BTU80,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73.5
Weight (in lbs)30.000000
FeatureSpec
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
Tonnage3 Ton
StyleA-Coil
Height38.25"
Width29"
Depth29"
ResourcesGoodman Brochure Goodman Specifications Goodman Installation Manual Goodman Warranty Information Goodman Service Instructions Goodman Kit Instructions Goodman Parts Manual 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
Burner StagesTwo
Fuel TypeGas
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
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

How does the 80% AFUE rating compare to newer furnaces? +
80% AFUE is competent but not cutting-edge. Modern high-efficiency models hit 90-98% AFUE, reducing fuel consumption noticeably over time. For budget-conscious buyers in moderate climates, 80% offers acceptable performance without premium pricing.
Will this system fit in a standard utility closet? +
Yes. At 38.25 inches tall and 29 by 29 inches wide, it fits most residential installations. Verify your space allows proper airflow around the unit and accounts for ductwork connections and service access.
What does the 14 SEER cooling rating mean in practice? +
14 SEER delivers solid seasonal cooling efficiency. You'll see moderate energy consumption during summer months. The single-stage condenser doesn't modulate capacity, so partial-load efficiency lags compared to variable-speed units.
How does this Goodman compare to mid-range Lennox or Carrier systems? +
Goodman prioritizes value over premium features. Comparable Lennox or Carrier units cost 30-50% more while offering quieter operation and higher efficiency ratings. This system excels for price-sensitive contractors and replacement applications.
Do I need to register the warranty immediately? +
Yes. The 10-year coverage requires online registration to activate. Complete this at purchase to ensure protection against manufacturing defects and labor coverage during the first decade.

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