Independent Review · Updated June 2026

5 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow

96% AFUE furnace paired with 15 SEER cooling, solid mid-range choice for budget-conscious homes

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow
Current Price
$3136
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman combo system delivers legitimate efficiency gains at a price point that won't shock contractors or homeowners. Best suited for replacement projects in mixed climates where both heating and cooling matter equally, and where budget constraints are real.

Review

Goodman's 5 ton downflow system represents a practical middle ground in the residential HVAC market. Positioned between bare-bones builder-grade equipment and premium high-efficiency units, this 120,000 BTU furnace and 60,000 BTU air conditioner combo offers measurable performance improvements without aggressive pricing. Contractors regularly specify this model for replacement jobs where existing ductwork is tight and budget expectations are realistic. The Energy Star certification and dual-stage components address legitimate efficiency concerns without pushing into boutique territory.

The 96% AFUE rating means this furnace converts nearly all fuel to usable heat, compared to 80-85% typical of older equipment. Paired with a 15 SEER air conditioner featuring a two-stage scroll compressor, the system operates at part capacity during mild days, avoiding the energy waste of constant full-load cycling. Variable-speed ECM blower motor adjusts CFM between 0-2000 depending on actual heating or cooling demand, reducing runtime and noise during shoulder seasons. Two-stage burner design on the furnace complements the compressor staging, creating consistent comfort without dramatic on-off cycles.

Pros & Cons

Pros

  • 96% AFUE furnace captures 96 cents of every dollar spent on heating, substantially above 80-85% single-stage units
  • Two-stage burner and two-stage compressor allow modulated operation, reducing energy waste during partial-load conditions
  • 15 SEER cooling efficiency beats base-model 13 SEER units while staying below premium 18-20 SEER pricing
  • Variable-speed ECM blower motor adjusts to actual heating and cooling demand, improving comfort and reducing runtime noise
  • 5 ton capacity handles typical residential loads across 2000-2500 square feet without undersizing issues
  • Downflow configuration fits basements and crawl spaces where upflow units won't work

Cons

  • 15 SEER is middle-of-road efficiency, not qualifying for aggressive rebates in some states that prioritize 17+ SEER systems
  • 75 dB noise level under full cooling load is noticeable, roughly equivalent to a vacuum cleaner running
  • Scroll compressor is reliable but less resilient to liquid slugging than rotary designs, requiring proper installation discipline

Who Should Buy

Best For

Contractors and homeowners replacing 15-20 year old systems in moderate climates who value balanced heating and cooling performance without premium pricing. Ideal for rental properties, multi-family retrofits, and homes where upfront cost matters as much as long-term efficiency.

Consider Alternatives If

Anyone in extreme heating climates (Minnesota, Montana) should prioritize higher AFUE units, and homeowners in heavy AC regions (Arizona, Florida) will see better ROI with 17+ SEER systems.

5 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
$3136
Buy at HVACDirect →

Installation

Downflow/horizontal configuration requires basement or crawl space placement with vertical ductwork drops to basement subfloors or attics above. Plastic PVC exhaust flue is standard and simplifies venting compared to metal alternatives. Electrical requirements are straightforward, 115V single-phase 60Hz with breaker sizing between 37.2-60 amps. Sweat valve connections use standard 3/8 inch liquid and 7/8 inch suction lines. Most installations take 4-6 hours for experienced technicians.

Warranty & Reliability

10-year parts warranty activates with online registration, covering compressor, furnace heat exchanger, and blower motor against manufacturing defects. This is standard protection, not exceptional. Registration is straightforward through Goodman's website. Labor warranty varies by installer, so confirm details during the sales process. Warranty becomes valuable only if registration completes promptly after installation.

Specifications

SKUCAPF4860D6
Brand/ManufacturerGoodman
Cooling BTU60,000
Heating BTU120,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)75
Weight (in lbs)44.000000
FeatureSpec
Energy StarYes
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
Height30"
Width24.5"
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 Number7368845
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
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

Frequently Asked Questions

How does 15 SEER compare to what I have now? +
If your system is 10-13 SEER, a 15 SEER upgrade cuts cooling costs roughly 15-20% depending on usage patterns. Real-world savings typically range $200-400 annually in moderate climates. The two-stage compressor is the efficiency driver, not just raw tonnage.
Can I install this myself or do I need a licensed technician? +
EPA refrigerant handling certification is legally required for R410A work, making DIY installation impossible. Licensed technicians charge $1200-2000 for installation labor. Goodman warranties require professional installation with proper evacuation and charge verification.
Will this unit qualify for utility rebates in my state? +
Many utilities offer $300-800 rebates for 15+ SEER systems. Check your local utility first, some states now target 17+ SEER. Goodman lists AHRI certificate 7368845, required proof for rebate applications.
How does Goodman's reliability compare to Lennox or Carrier? +
Goodman scroll compressors have solid field reliability when installed correctly. Lennox and Carrier command 10-15% price premiums partly for brand reputation. Real failure differences are minimal if proper maintenance occurs.
What does the 10-year warranty actually cover? +
Parts only after registration, covering defects not user damage or installation errors. Labor is excluded. Extended labor plans are available separately through most dealers for $300-600.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.