Independent Review · Updated June 2026

4 Ton 17 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency dual-stage system delivers 96% heating and 18 SEER2 cooling reliability

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 17 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system excels for homeowners replacing older furnaces who want genuine efficiency gains without premium pricing. The 96% AFUE furnace paired with an 18 SEER2, two-stage condenser makes sense for mixed climates where both heating and cooling matter equally.

Review

The Goodman 4-ton (or 5-ton, depending on which spec you trust) two-stage system represents a pragmatic middle ground in the HVAC market. It delivers genuine efficiency without the premium pricing of higher-tier brands. With an 80,000 BTU furnace burning natural gas or propane and a 47,000 BTU cooling capacity, this unit handles the heating and cooling demands of a typical 1,800-2,200 square foot home. Goodman's reputation leans practical: contractors respect the engineering, homeowners appreciate the value proposition, and this particular model includes solid warranty coverage.

Performance numbers tell the real story. The 96% AFUE furnace converts nearly all combustible energy into usable heat, eliminating the waste common in 80-85% units. The 18 SEER2 cooling efficiency (a newer standard than the older SEER rating) provides meaningful energy savings during summer months. The two-stage compressor and burners mean the system runs at partial capacity most of the time, reducing energy consumption and allowing quieter operation than single-stage competitors. Variable-speed ECM blower motor responds to actual ductwork demand rather than running constantly at full speed, further reducing utility bills.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs by 15-20% versus 80s-era systems
  • 18 SEER2 rating qualifies for ENERGY STAR certification and most utility rebates
  • Two-stage compressor and burners allow modulated operation, reducing noise and cycling
  • Variable-speed ECM blower motor runs quietly at 72 dB and adjusts to actual demand
  • 10-year warranty with online registration covers parts comprehensively

Cons

  • Spec sheet lists conflicting tonnage (title says 4-ton, specs list 5-ton) creating confusion
  • 72 dB noise level is above average for two-stage units, noticeable in quiet neighborhoods
  • Goodman brand ranks lower on reliability than Carrier, Lennox, or Trane in contractor surveys

Who Should Buy

Best For

Homeowners in moderate climates who prioritize upfront cost savings and want measurable efficiency improvements over their current 10-15 year old system. This works well for those willing to accept mid-tier brand reputation in exchange for solid performance at a reasonable price point.

Consider Alternatives If

Buyers seeking premium reliability, those in very cold climates needing aggressive heating, or homes where noise levels below 70 dB matter significantly.

4 Ton 17 SEER 96% AFUE 80,000 BTU Goodman Gas Furn
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Installation

This upflow/horizontal A-coil unit requires standard residential installation: 115V single-phase electrical service with a 29.3-50 amp breaker, plastic PVC exhaust flue venting, and proper refrigerant line sizing (3/8 inch liquid, 7/8 inch suction). Dimensions of 30 by 21 by 21 inches fit most mechanical closets or basements. Most HVAC contractors complete installation in 4-6 hours, though ductwork modifications may add time.

Warranty & Reliability

The 10-year parts warranty requires online registration but represents solid coverage for a mid-tier unit. It protects against compressor failure, heat exchanger cracks, and component defects. Labor is typically customer responsibility, so budget $150-250 per service call if repairs arise after year one. This warranty length is competitive for Goodman products.

Specifications

SKUCAPF4961C6
Brand/ManufacturerGoodman
Cooling BTU47,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)72
Weight (in lbs)46.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size50 amps
Min. Breaker Size29.3 amps
Tonnage5 Ton
Valve TypeSweat
Height30"
Width21"
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.
AHRI Certificate Number7368835
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM1600
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesTwo
Fuel TypePropane, Natural Gas
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil

Frequently Asked Questions

Is this really a 4-ton or 5-ton system? +
The product title claims 4-ton, but specifications list 5-ton tonnage. Contact Goodman directly to clarify before purchase. Both 4-ton and 5-ton models exist in this product line, and tonnage determines home size compatibility. A 5-ton system cools larger spaces than 4-ton, affecting performance and efficiency ratings.
Will this fit my basement installation? +
At 30 inches tall, 21 inches wide, and 21 inches deep, this unit fits most basement mechanical rooms. Verify your available space dimensions before ordering. The upflow configuration works best when positioned below your main floor. You'll also need adequate PVC venting to the roof for the exhaust flue.
How much will this save on heating and cooling bills? +
Replacing an 80% AFUE furnace with this 96% unit saves roughly 16-20% on heating costs. The 18 SEER2 rating saves 30-40% on cooling versus 10 SEER units. Actual savings depend on your climate, home insulation, and usage patterns. Most homeowners recoup the system cost through energy savings within 7-10 years.
How does Goodman compare to Carrier or Lennox? +
Goodman offers better value upfront, while Carrier and Lennox command 15-25% price premiums for brand reputation and slightly better reliability ratings. All three offer comparable efficiency numbers. Goodman is engineering-sound but has lower brand loyalty. Choose based on your contractor's service quality, not brand alone.
Does the 10-year warranty cover everything? +
Yes, for parts with online registration. Warranty covers the compressor, heat exchanger, and major components. Labor costs are your responsibility. The warranty does not cover refrigerant, routine maintenance, or damage from improper installation or lack of maintenance.

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