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 for serious cooling and heating

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 system excels for homeowners in mixed climates who need balanced heating and cooling performance without premium pricing. The 96% AFUE furnace combined with 18 SEER1 cooling creates a versatile solution for regions with meaningful winter heating demands.

Review

The Goodman GMVC961005CN is a mid-tier two-stage system designed for homeowners who need balanced performance across heating and cooling seasons. It pairs a 100,000 BTU furnace with an air conditioner, both with multi-stage capability. This upflow configuration fits standard attic or basement installations. Goodman positions this unit as a solid value option that avoids both the budget baseline and premium-tier pricing, targeting contractors who need reliable equipment without excessive markups.

Efficiency numbers here are genuinely strong. The furnace delivers 96% AFUE, meaning only 4% of natural gas or propane energy is wasted up the flue. The cooling side reaches 18 SEER1 with Energy Star certification, notably higher than baseline 13-14 SEER equipment. Two-stage operation on both heating and cooling reduces runtime at part load, improving comfort and humidity control. The variable-speed ECM blower motor modulates from 500 to 2000 CFM, adapting to real demand rather than running full blast constantly.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency delivers excellent heating performance, reducing winter energy bills significantly
  • 18 SEER1 cooling efficiency, Energy Star certified, means lower summer operating costs
  • Two-stage compressor and two-stage burner allow modulated operation for comfort and efficiency at partial load
  • Variable-speed ECM blower motor adjusts to actual demand, improving dehumidification and reducing short cycling
  • Lifetime heat exchanger warranty provides genuine long-term protection on the furnace's costliest component

Cons

  • Spec sheet lists both 3-ton and 5-ton ratings, creating confusion about actual cooling capacity
  • 71 dBA noise level is moderate, not quiet, so placement matters in open-concept homes
  • Requires licensed technician installation due to gas connections, increasing upfront labor costs significantly

Who Should Buy

Best For

Contractors and homeowners in climates requiring both serious heating and cooling should consider this system. It's ideal for mixed-weather regions where furnace efficiency matters as much as air conditioner performance.

Consider Alternatives If

Buyers in extreme-heat-only climates, very tight budgets with no access to rebates, or those unable to arrange licensed installation should look at other options.

3 Ton 17 SEER 96% AFUE 100,000 BTU Goodman Gas Fur
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Installation

This unit absolutely requires a licensed HVAC technician for installation. Gas line connections, heat exchanger safety, and flue venting to PVC plastic must meet local codes. The system needs 115V single-phase 60Hz power with a 21.9 to 35 amp breaker. Ducting, refrigerant charging, and gas pressure verification add complexity. Many jurisdictions legally require installer licensing, so DIY installation is not an option here.

Warranty & Reliability

Goodman covers the heat exchanger for life and all parts for 10 years, provided you register online. This addresses the furnace's most expensive component, offering genuine peace of mind. Ten years of parts coverage is competitive at this price point. However, labor is not covered, so repairs after year one require paying a technician even if parts are free.

Specifications

SKUGMVC961005CN
Brand/ManufacturerGoodman
Cooling BTU35,000
Heating BTU100,000
RefrigerantR410A
Electrical115 V. 1 Phase 60 Hz
WarrantyLifetime Heat Exchanger and 10 Years Parts with Online Registration
Decibel Level (dBA)71
Weight (in lbs)143.000000
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
Tonnage5 Ton
Valve TypeSweat
Height34.5"
Width21"
Depth28.75"
ResourcesGoodman Brochure Goodman Install 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.
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
AHRI Certificate Number7368836
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000

Frequently Asked Questions

What's the difference between the 3-ton and 5-ton ratings listed in the specs? +
This spec sheet appears contradictory. The title states 3-ton cooling, but tonnage field lists 5-ton. Real cooling capacity is 35,000 BTU, which converts to 2.92 tons. Contact the seller to clarify whether this is a true 3-ton or oversized 5-ton unit, as this dramatically affects system performance and matching to your home's load.
Can I install this myself to save money? +
No. Gas appliances require licensed technician installation for safety and legal compliance. Improper gas line connections risk carbon monoxide exposure, explosion, and death. The warranty explicitly requires professional installation. This is non-negotiable regardless of cost savings.
How does 18 SEER1 compare to other mid-tier systems? +
18 SEER1 is solid. Standard budget equipment sits around 13-14 SEER. Premium systems reach 20-21 SEER. This Goodman lands in the upper-middle tier, delivering noticeably better efficiency than budget options at lower cost than premium brands. Expect meaningful summer energy savings versus baseline units.
Is Goodman reliable enough compared to Trane or Lennox? +
Goodman ranks behind Trane and Lennox in perceived brand prestige, but reliability data shows comparable failure rates. Goodman's advantage is lower pricing for similar efficiency. Service availability varies by region, so verify local technician networks before purchasing.
What does the lifetime heat exchanger warranty actually cover? +
It covers heat exchanger defects for the furnace's life, even if you sell the home. Parts are free, but labor is not covered after year one. This protects against the most expensive failure point in any gas furnace.

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