Independent Review · Updated June 2026

3 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow

High-efficiency two-stage system delivering 16 SEER cooling and 96% heating at mid-range pricing

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow
Current Price
$3225
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system works best for homeowners in moderate climates who want solid efficiency without premium pricing, particularly those replacing older units and qualifying for utility rebates. The 16 SEER rating and 96% AFUE deliver measurable energy savings, though it's not the highest tier available.

Review

The Goodman CAPF4961D6 represents the sweet spot in mid-range HVAC systems, combining proven two-stage technology with respectable efficiency ratings. At $3225, it positions itself between budget-tier equipment and premium brands like Carrier or Lennox. This downflow configuration works well for homes with basement furnace placement or horizontal ducts, making it a practical choice for retrofits and new installations in mixed-climate regions.

Performance metrics tell the real story here. The 16 SEER1 cooling rating meets ENERGY STAR standards, with a two-stage scroll compressor that modulates capacity from 50% to 100%, reducing runtime during mild days. The furnace delivers 120,000 BTU heating output at 96% AFUE, meaning 96 cents of every fuel dollar converts to heat. Two-stage burners mirror cooling efficiency, and the variable-speed ECM blower reaches 2000 CFM, automatically adjusting for changing loads throughout the day.

Pros & Cons

Pros

  • 16 SEER cooling efficiency qualifies for ENERGY STAR and many utility rebates, reducing effective cost
  • 96% AFUE heating efficiency is top-tier for gas furnaces, minimizing fuel waste
  • Two-stage compressor and burners allow modulated operation, improving comfort and reducing short-cycling
  • Variable-speed ECM blower motor with 2000 CFM maximum adapts to heating and cooling demands
  • PVC/plastic exhaust compatibility simplifies venting in modern home configurations

Cons

  • 5-ton tonnage spec conflicts with 3-ton marketing claim, creating sizing confusion for buyers
  • 70.4 dBA noise level is audible during operation, noticeable in quiet homes or bedrooms
  • Scroll compressor is reliable but not as durable long-term as rotary compressors in some applications

Who Should Buy

Best For

Homeowners replacing 10+ year old systems in mild to moderate climates who want efficiency gains without high-end pricing. This is ideal for those who plan to stay 10-15 years and can take advantage of rebate programs.

Consider Alternatives If

Anyone in extreme climates needing maximum capacity, those seeking premium warranties beyond 10 years, or homeowners wanting the latest SEER2 ratings should explore higher-tier brands.

3 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
$3225
Buy at HVACDirect →

Installation

Installation requires 115V single-phase power with a 21.8 to 35-amp breaker circuit. The downflow design fits tight spaces, with compact dimensions of 30 inches tall by 24.5 inches wide by 21 inches deep. Refrigerant lines use industry-standard 3/8-inch liquid and 7/8-inch suction connections with sweat valve fittings. PVC exhaust venting simplifies placement away from traditional metal ducts, and A-coil configuration matches most standard indoor air handlers.

Warranty & Reliability

Goodman backs this system with a straightforward 10-year parts warranty when registered online, which most contractors complete at installation. This covers compressor, heat exchanger, and coils, typical for this price tier. However, it trails Carrier's 10-year compressor and ICP's extended terms, so warranty isn't a competitive strength here.

Specifications

SKUCAPF4961D6
Brand/ManufacturerGoodman
Cooling BTU36,000
Heating BTU120,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)70.4
Weight (in lbs)50.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size35 amps
Min. Breaker Size21.8 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

What's the difference between 16 SEER1 and SEER2 ratings I see on newer systems? +
SEER1 uses legacy testing standards; SEER2 reflects stricter 2023 protocols and typically rates 15-20% lower. This unit's 16 SEER1 roughly equals 13 SEER2. Always compare apples-to-apples when shopping, asking dealers which rating they're quoting.
Can I pair this with my existing furnace or air conditioner? +
No, this is a complete system designed as matched pair for optimal efficiency and AHRI certification (7368845). Mixing components voids warranties and can reduce efficiency by 5-15%. Always replace furnace and condenser together.
Does the two-stage compressor really save money compared to single-stage? +
Yes, modulation reduces runtime 20-30% in mild weather, cutting cooling costs. Two-stage also runs quieter and cooler, extending compressor life from typical 12-15 years toward 15-18 years in moderate climates.
How does this Goodman compare to mid-range Lennox or Carrier systems? +
Similar efficiency tiers exist across brands at this price. Goodman trades brand prestige for lower cost, offering identical SEER/AFUE specs. Carrier charges 15-20% more for reputation; Lennox sits between both in price and perceived reliability.
Will online registration really give me the full 10-year warranty? +
Yes, Goodman enforces this consistently. Most HVAC contractors register at installation, but verify before paying your final invoice. Lost registration cards rarely matter if you have the receipt and serial number.

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