Independent Review · Updated June 2026

3 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency dual-fuel system with 16 SEER cooling and 96% AFUE heating

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
$0
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system works best for homeowners seeking reliable, Energy Star-certified heating and cooling with strong efficiency ratings at a competitive price point. The 16 SEER rating and 96% AFUE make it ideal for those balancing monthly utility bills against upfront equipment costs, particularly in mixed-climate regions.

Review

The Goodman 3-ton (or 5-ton, pending clarification) dual-fuel system represents a practical middle ground in the HVAC market. Offered through Online Supply at competitive pricing, this upflow configuration combines gas furnace heating with refrigerated air cooling. Energy Star certification signals efficiency compliance, and the specifications suggest a unit designed for residential retrofit and new construction work across moderate climate zones.

Performance metrics stand out: the 16 SEER rating meets current efficiency standards for cooling 34,800 BTU/hour capacity, while the furnace delivers 120,000 BTU with impressive 96% AFUE. The scroll compressor handles R410A refrigerant in a single-stage design, meaning it runs at full capacity when engaged rather than ramping up and down. Electrical requirements remain modest at 115V single-phase with 18.7 to 30-amp breaker sizing, simplifying installation in existing homes.

Pros & Cons

Pros

  • 16 SEER rating delivers solid cooling efficiency, translating to lower summer energy costs
  • 96% AFUE furnace recovers nearly all fuel value, minimizing winter heating waste
  • Multi-speed ECM blower motor adapts to demand, improving comfort and efficiency
  • Two-stage burner allows modulated heating for better temperature control and efficiency
  • 10-year warranty with online registration provides meaningful protection against manufacturing defects
  • Compact dimensions (30 x 24.5 x 21 inches) fit tight spaces, upflow or downflow configuration

Cons

  • Single-stage compressor cannot modulate cooling capacity, cycling on and off rather than adjusting output
  • 73.5 dB operation is audible during peak cooling, noticeable in quiet neighborhoods or homes with open layouts
  • Spec sheet lists conflicting tonnage (3-ton in title but 5-ton in specifications), creating confusion about actual capacity

Who Should Buy

Best For

Homeowners in moderate climates who prioritize efficiency without premium pricing should consider this unit. Contractors appreciate the straightforward scroll compressor design and PVC flue compatibility for straightforward installations.

Consider Alternatives If

Skip this if you need variable-capacity cooling, live in extremely hot climates requiring maximum efficiency, or want whisper-quiet operation below 70 dB.

3 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
$0
Buy at HVACDirect →

Installation

Installation proves straightforward for experienced technicians. The unit accepts 3/8-inch liquid and 7/8-inch suction lines with pre-insulated 3/4-inch suction line wrap included up to 50 feet. PVC flue venting eliminates corrosion concerns. Upflow or downflow configuration adapts to basement, attic, or closet placement. Multi-speed ECM blower requires only standard thermostat wiring.

Warranty & Reliability

A 10-year comprehensive warranty on parts applies after online registration, providing solid protection against compressor failure, heat exchanger cracks, and component defects. This exceeds many budget-tier competitors but falls short of premium 15-year coverage. Labor costs and refrigerant charges typically remain customer responsibility.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU34,800
Heating BTU120,000
RefrigerantR410A or R22
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
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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti-Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesTwo
Fuel TypeGas
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Why does the product list both 3 tons and 5 tons in specifications? +
This appears to be a data entry error in the specifications sheet. The title and cooling BTU (34,800) suggest 3-ton capacity, though the tonnage field shows 5 tons. Contact Online Supply or Goodman to confirm actual capacity before purchasing, as this affects room-by-room load calculations.
Can this system connect to existing ductwork designed for a different tonnage? +
Capacity mismatch creates problems. Oversized systems short-cycle and waste energy, while undersized units run continuously. The maximum 2,000 CFM airflow helps with duct friction calculations. Have a professional perform manual J load calculation to confirm compatibility with your existing ductwork.
How does 16 SEER compare to newer SEER2 ratings? +
SEER ratings use older testing standards; SEER2 reflects real-world conditions and typically runs 15 to 25 percent lower. A 16 SEER unit roughly equals 11 to 12 SEER2. Modern high-efficiency units target 18-22 SEER or 13-16 SEER2, so this sits at the efficiency midpoint.
Is a single-stage compressor adequate, or should I pay more for variable-capacity? +
Single-stage works fine for consistent climates but cycles frequently in fluctuating weather, reducing efficiency and comfort. Two-stage or variable-capacity systems maintain steadier indoor temperatures. Budget constraints often justify single-stage; premium comfort justifies variable-capacity investment.
What does the 10-year warranty actually cover? +
Parts are covered against manufacturing defects after online registration. Labor, refrigerant, and seasonal maintenance fall outside coverage. Review the full warranty document before purchase to understand exclusions and claim procedures.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.