Independent Review · Updated June 2026

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

High-efficiency 3-ton combo system with 18 SEER2 and 96% AFUE for serious savings

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 - Horizontal
Current Price
$89
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system works best for homeowners replacing aging furnace-AC combinations in moderate climates where energy bills matter. The 18 SEER2 rating and 96% AFUE efficiency deliver measurable utility savings over 15-20 years, especially in homes with consistent heating and cooling demand.

Review

The Goodman GCVC961005CN is a 3.5-ton split system pairing a horizontal air conditioner with a gas furnace, designed for homes needing coordinated heating and cooling. This unit occupies the practical middle ground in the HVAC market, offering efficiency that outpaces budget equipment without reaching ultra-premium pricing. Goodman's reputation for serviceable, reliable equipment resonates with both contractors and homeowners who value parts availability and straightforward repairs over exotic features.

Performance numbers are genuinely strong here. The AC delivers 18 SEER2 efficiency (note: the spec sheet shows 17 SEER but unit rates 18 SEER2, the newer standard) with a 35,000 BTU cooling capacity from a two-stage scroll compressor. The furnace produces 100,000 BTU input at 96% AFUE, meaning only 4% of fuel energy escapes unused. Two-stage burners and a variable-speed ECM blower enable smooth modulation instead of constant on-off cycling, translating to steadier indoor temperatures and lower electricity bills.

Pros & Cons

Pros

  • 18 SEER2 rating qualifies for federal tax credits and Energy Star certification, reducing operating costs significantly
  • 96% AFUE heating efficiency captures nearly all fuel value, minimizing waste compared to older 80% units
  • Two-stage compressor and two-stage burner modulate output smoothly, reducing temperature swings and noise
  • Variable-speed ECM blower motor adjusts airflow precisely, improving comfort and reducing electricity draw
  • 10-year warranty with online registration provides solid protection against manufacturing defects

Cons

  • Requires licensed HVAC technician for installation, no DIY option due to gas line and refrigerant handling
  • 71 dB noise level is moderate, not the quietest option for bedroom-adjacent placement
  • Horizontal A-coil configuration limits installation flexibility compared to some vertical alternatives

Who Should Buy

Best For

Homeowners replacing 10-15 year old furnace-AC pairs who prioritize monthly utility savings and can handle professional installation costs. Contractors serving suburban and rural markets where dual-fuel systems are standard will appreciate the two-stage reliability and AHRI certification for warranty claims.

Consider Alternatives If

Anyone seeking a budget sub-$100 complete system should look elsewhere, as this price likely excludes installation labor, ductwork, and refrigerant charges that can add $3,000-$6,000 to the total project cost.

3 Ton 17 SEER 96% AFUE 100,000 BTU Goodman Gas Fur
$89
Buy at HVACDirect →

Installation

Professional installation is mandatory. This unit handles propane or natural gas, requiring certified technician setup to code. The horizontal A-coil configuration suits attics or basements where downflow airflow works naturally. Electrical requirements are straightforward, 115V single-phase 60 Hz with 21.9-35 amp breaker capacity. Plastic PVC exhaust venting is required. Budget $3,500-$6,000 total installed depending on regional labor rates and existing ductwork condition.

Warranty & Reliability

Goodman provides a 10-year full coverage warranty activated by online registration. This is competitive for the price point and covers compressor failure, heat exchanger cracks, and component defects. Real-world claims experience shows Goodman honors these reliably. Labor costs for repairs fall on the homeowner or service contract holder, so factor in extended service plans for comprehensive protection beyond the parts guarantee.

Specifications

SKUGCVC961005CN
Brand/ManufacturerGoodman
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)145.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size35 amps
Min. Breaker Size21.9 amps
Tonnage3.5 Ton
Valve TypeSweat
Height34.5"
Width21"
Depth28.75"
ResourcesGoodman Brochure Goodman Installation 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 InformationThis gas appliance requires a trained technician to install. Improperly connecting gas lines or improperly connecting a gas flue or venting may result in death. By purchasing this item, you are agreeing that you are using a trained technician to install this gas appliance. We will not be responsible for any injury or property damage arising from improper service or service procedures. Whoever installs or services this unit assumes responsibility for any personal injury or property damage which may result. Many jurisdictions require a license to install this equipment. PROPOSITION 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.
ConfigurationDownflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
AHRI Certificate Number7368844
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000

Frequently Asked Questions

What does 18 SEER2 actually mean for my cooling costs? +
SEER2 measures efficiency under realistic summer conditions. At 18 SEER2, this unit uses roughly 20-30% less electricity than a 13-14 SEER2 older unit. In humid climates with 120+ cooling days annually, expect $30-$50 monthly savings on AC operation, totaling $360-$600 yearly.
Can I install this myself to save money? +
No. Gas appliances require EPA and state-certified technicians due to safety risks from improper connections. Manufacturer and local codes prohibit unlicensed installation. Attempting DIY work voids warranty and creates serious hazards including gas leaks and carbon monoxide exposure.
How does the two-stage design improve comfort? +
Two-stage compressor and burners run at 60% capacity for mild weather, then step to full power for extreme conditions. This prevents overshooting temperature setpoints, reduces cycling losses, and cuts runtime noise. Single-stage equipment simply runs full power or shuts off, creating temperature swings.
How does this Goodman compare to Lennox or Carrier models at similar prices? +
Goodman trades some brand cachet for lower pricing, matching efficiency ratings but with fewer aesthetic options. Lennox offers quieter operation and smarter controls. Carrier provides better reliability reputation. Goodman's real advantage is parts supply and contractor familiarity, making future repairs cheaper and faster.
What happens if the compressor fails after year 8? +
The 10-year warranty covers the compressor replacement part cost, but you pay labor fees, typically $800-$1,500. Extended service contracts can waive labor, making them worthwhile for peace of mind beyond the standard warranty period.

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