Independent Review · Updated June 2026

3 Ton 17 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency two-stage system with 96% AFUE and 18 SEER1 cooling performance

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 17 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman combo system suits homeowners upgrading from older single-stage equipment or replacing failed units in moderate climates. The 96% AFUE furnace and two-stage scroll compressor deliver solid efficiency gains with manageable installation complexity.

Review

The Goodman 3-ton gas furnace and air conditioner system represents the practical middle ground between budget equipment and ultra-premium units. This upflow combo delivers respectable efficiency metrics with a 96% AFUE furnace rating and 18 SEER1 cooling performance. The scroll compressor and variable-speed blower motor help it operate intelligently across different load conditions. Online Supply backs this AHRI-certified unit (certificate 7368836) with a 10-year warranty when registered. It's designed for contractors and homeowners who prioritize steady performance over cutting-edge features.

Heating output reaches 100,000 BTU with two-stage burner operation, while cooling capacity delivers 35,000 BTU through a two-stage condenser. The variable-speed ECM blower pushes up to 2,000 CFM, adapting airflow to actual heating and cooling demand. Electrical requirements run modest at 115V single-phase 60Hz with a 35-amp maximum breaker size. The A-coil configuration with 3/4-inch suction line insulation supports R410A refrigerant. These specifications align with typical residential replacement scenarios where existing ducts support upflow distribution.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs significantly versus 80-90% systems
  • 18 SEER1 cooling rating exceeds most mid-tier competitors for air conditioning performance
  • Two-stage compressor and variable-speed ECM blower motor optimize part-load operation
  • Scroll compressor design offers proven reliability across millions of residential installations
  • PVC flue exhaust reduces venting complications in retrofit applications

Cons

  • Product specs list conflicting tonnage information, with title stating 3-ton but specs showing 5-ton capacity
  • 71 dB noise level runs slightly higher than premium single-stage models during cooling operation
  • No pricing shown at listing, making value comparison difficult for budget-conscious buyers

Who Should Buy

Best For

Homeowners in heating-dominant regions seeking efficiency improvements without premium pricing, and contractors performing equipment replacement in homes with existing ductwork designed for upflow configuration.

Consider Alternatives If

Buyers needing equipment immediately should verify availability and pricing first, as this listing shows no cost information. Users in extreme climates may want higher SEER2 ratings.

3 Ton 17 SEER 96% AFUE 100,000 BTU Goodman Gas Fur
$0
Buy at HVACDirect →

Installation

This upflow system integrates straightforwardly into homes with vertical ductwork. The 30-pound indoor unit measures 30 by 21 by 21 inches, fitting standard closet and basement spaces. Technicians need basic refrigerant line sizing using the 3/8-inch liquid and 7/8-inch suction connections. PVC flue exhaust simplifies venting compared to metal duct requirements. Installation manual and specifications sheet availability through Adobe PDF download supports proper setup.

Warranty & Reliability

Ten-year full parts coverage requires online registration to activate, a common requirement across Goodman's residential lineup. This covers compressor, blower motor, and coil components under normal operating conditions. Coverage begins at installation date. Homeowners should retain purchase documentation and registration confirmation. This warranty aligns with industry standards for equipment in this efficiency tier.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU35,000
Heating BTU100,000
RefrigerantR410A
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)71
Weight (in lbs)30.000000
FeatureSpec
Product FeaturesRebate Available
Energy StarYes
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size35 amps
Min. Breaker Size21.3 amps
Tonnage5 Ton
Valve TypeSweat
Height30"
Width21"
Depth21"
ResourcesCAPT Installation Manual CAPT 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.
AHRI Certificate Number7368836
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypePropane, Natural Gas
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Why does the product title say 3-ton but specifications list 5-ton capacity? +
This appears to be a data entry error in the product database. The 35,000 cooling BTU output confirms 3-ton capacity (12,000 BTU per ton). Contact Online Supply directly to clarify specs before purchase. The 100,000 heating BTU and electrical ratings also align with 3-ton sizing.
Can this system install in existing 3-ton ductwork? +
Yes, the 35,000 BTU cooling output and 2,000 CFM maximum airflow match standard 3-ton duct sizing. The upflow design works in homes with vertical trunk lines. However, verify your furnace cabinet can accommodate the 30 by 21 by 21 inch dimensions before ordering.
How much money does the 96% AFUE furnace save annually? +
Upgrading from an 80% furnace to this 96% unit saves approximately 16% on heating energy costs. A household spending $1,500 annually on natural gas heating could save $240 per year. Actual savings depend on your current system efficiency, local gas rates, and heating degree days.
Is 18 SEER1 competitive with modern air conditioner systems? +
Yes, 18 SEER1 performance sits comfortably in the mainstream efficiency range for 2024 equipment. Premium units reach 20-22 SEER1, while basic models drop to 14-16 SEER1. This rating qualifies for ENERGY STAR certification and most utility rebate programs.
What does the 10-year warranty cover exactly? +
Full parts coverage including compressor, blower motor, and evaporator coil. Requires online registration within 30 days of installation. Labor costs and refrigerant charges typically fall outside coverage. Review full terms in the warranty documentation provided at purchase.

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