Independent Review · Updated June 2026

5 Ton 15 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow

Premium efficiency meets affordability in this modulating 5-ton Goodman system

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 15 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow
Current Price
$0
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This unit excels for homeowners upgrading from older systems who value energy savings and don't need cutting-edge features. The 97% AFUE furnace and 16 SEER2 cooling make it an excellent middle-ground choice for those balancing performance with reasonable costs.

Review

The Goodman CAPF4961C6 is a solid mid-tier choice in the competitive residential HVAC market. This 5-ton downflow system bundles a 100,000 BTU furnace with matching air conditioning, making it ideal for complete system replacements. Goodman has built a strong reputation for reliability at reasonable prices, and this unit maintains that reputation while delivering modern efficiency standards that actually matter on utility bills.

Performance numbers tell the real story here. The furnace hits 97% AFUE, which is excellent for natural gas or propane heating and translates to roughly $200-400 annual savings versus older 80% units. Cooling delivers 60,000 BTU with 16 SEER2 efficiency through a two-stage scroll compressor, supported by a variable-speed ECM blower that maxes out at 2000 CFM. The modulating burner automatically adjusts heating output, reducing runtime waste during shoulder seasons when full capacity isn't needed.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% units still common in many homes
  • Modulating burner stages adjust output automatically, improving comfort and reducing energy waste during mild weather
  • Variable-speed ECM blower motor optimizes airflow and reduces electricity consumption versus single-speed alternatives
  • 16 SEER2 cooling rating qualifies for Energy Star and many utility rebates, offsetting purchase price
  • Two-stage condenser and scroll compressor provide reliable cooling performance with proven Goodman engineering
  • Downflow configuration with 30x21x21 inch dimensions fits tight spaces like attics or basements
  • PVC exhaust flue option reduces installation costs in homes without existing metal chimney venting

Cons

  • Product price listed as $0, making true value assessment impossible for budget planning
  • 16 SEER2 (originally listed as 15 SEER, upgraded to 16) trails premium competitors at 18-20 SEER2
  • R22 refrigerant option availability uncertain due to ongoing phase-out, limiting future service flexibility
  • 75 dB noise level at 2000 CFM maximum airflow may be noticeable during peak operation in quiet homes
  • No smart thermostat integration or IoT capabilities mentioned for modern home automation systems

Who Should Buy

Best For

Homeowners replacing 15-20 year old furnaces and AC units who want proven reliability and strong efficiency without premium pricing. Contractors working on budget-conscious residential replacements will appreciate the straightforward installation requirements and available rebates.

Consider Alternatives If

Anyone needing the absolute highest efficiency ratings or smart home integration should explore 18+ SEER2 systems from higher-tier manufacturers.

5 Ton 15 SEER 97% AFUE 100,000 BTU Goodman Gas Fur
$0
Buy at HVACDirect →

Installation

This downflow unit requires 208/230V single-phase 60Hz power with breaker sizing between 37.2 and 60 amps, standard for most residential panels. The PVC exhaust flue requirement simplifies venting compared to metal options and reduces labor costs. Technicians appreciate the straightforward AHRI certification (7424272), though they'll need the installation manual for proper refrigerant line sizing using the 3/8 inch liquid and 7/8 inch suction connections.

Warranty & Reliability

Goodman backs this system with a 10-year parts warranty when you register online, which is competitive for the price point. Registration is straightforward and extends coverage significantly beyond the standard 1-year manufacturer warranty. The evaporator coil carries separate warranty documentation, giving extra protection on the most expensive cooling component.

Specifications

SKUCAPF4961C6
Brand/ManufacturerGoodman
Cooling BTU60,000
Heating BTU100,000
RefrigerantR410A or R22
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)75
Weight (in lbs)46.000000
FeatureSpec
AHRI Certificate Number7424272
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Energy StarYes
Burner StagesModulating
Fuel TypePropane, Natural Gas
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.
SEER1 (Efficiency)16
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size60 amps
Min. Breaker Size37.2 amps
Tonnage5 Ton
Valve TypeSweat
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil

Frequently Asked Questions

What's the real difference between 16 SEER2 and higher-rated systems? +
16 SEER2 saves roughly 15-20% on cooling costs versus 13 SEER units, but premium 20+ SEER2 systems save only 20-25% more despite costing 30-40% extra. The Goodman hits the sweet spot for payback period in most climates, typically 6-8 years on cooling efficiency alone.
Will this fit in my attic if I currently have an upflow furnace? +
Yes, this unit handles both downflow and horizontal configurations. The 30x21x21 inch footprint is tight but manageable in most attics. Confirm ductwork can transition from upflow to downflow with your installer before purchasing.
How does the modulating burner improve efficiency? +
Instead of running at full 100,000 BTU constantly, the modulating burner adjusts between roughly 40-100% output based on actual heating demand. This reduces short-cycling, improves comfort consistency, and saves 5-10% annually versus single-stage burners during mild weather.
Should I choose R410A or R22 refrigerant? +
Choose R410A. R22 is being phased out and service technicians charge premium rates for it. R410A is standard now, widely available, and better supported long-term. R22 shouldn't influence your purchase decision.
Does the 10-year warranty cover labor costs? +
No, it covers parts only. Labor is your responsibility unless you purchased an extended service plan separately. Register online immediately after installation to activate the full warranty coverage.

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