4 Ton 17.5 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system is ideal for homeowners replacing older split systems in moderate climates who prioritize fuel efficiency and want reliable performance without premium pricing. The 96% AFUE and 17.5 SEER1 deliver solid energy savings, though it's not the highest-tier option available.

Review

The Goodman CAPF4961D6 represents a solid midmarket choice for homeowners seeking dependable heating and cooling without flagship-tier specifications. This 4-ton upflow system pairs a 96% AFUE furnace with a 17.5 SEER1 air conditioner, delivering respectable efficiency across both seasons. Goodman's reputation for affordability and contractor support remains strong, though this particular model occupies the practical middle ground rather than pushing innovation boundaries.

Heating performance lands at 120,000 BTU output with two-stage burner control, while cooling reaches 47,000 BTU at 17.5 SEER1 with a scroll compressor and two-stage condenser. The variable-speed ECM blower handles up to 2,000 CFM, adapting airflow to actual demand rather than running at full power constantly. These specifications translate to reasonable monthly utility bills, particularly in moderate heating climates where the furnace efficiency advantage shows itself.

Pros & Cons

Pros

96% AFUE furnace efficiency is excellent for gas heating, reducing fuel costs substantially compared to 80-85% systems
17.5 SEER1 cooling efficiency qualifies for Energy Star, with two-stage compressor and variable-speed ECM blower for modulation
Two-stage burner and scroll compressor minimize cycling losses and extend component lifespan in most conditions
Compact A-coil design fits standard upflow and downflow installations with minimal ductwork modifications
10-year warranty with online registration provides decent protection for major components without premium pricing

Cons

17.5 SEER1 lags behind 18+ SEER systems from competitors, translating to slightly higher cooling costs in hot climates
72 dB noise level is moderately loud during compressor operation, noticeable near outdoor condenser unit
Variable-speed blower requires 115V/60Hz power and 29.3-50 amp breaker, demanding clean electrical infrastructure

Who Should Buy

Best For

Homeowners in zones 4-6 replacing 15-20 year old furnace-AC combos who want measurable efficiency gains at mid-range pricing. This system suits those prioritizing heating performance with adequate cooling rather than maximum AC efficiency.

Consider Alternatives If

Buyers in extreme climates (Arizona, Florida) requiring maximum SEER ratings, or those with budget constraints where older Goodman models at lower price points make more sense.

4 Ton 17.5 SEER 96% AFUE 120,000 BTU Goodman Gas F

Buy at HVACDirect →

Installation

Installation requires 115V single-phase 60Hz power with 29.3 to 50-amp breaker capacity, standard for most residential panels. The upflow A-coil configuration fits existing ducts without major rework on homes built after 1990. PVC/plastic exhaust venting accommodates modern condensing furnaces, though existing metal flues need replacement. Professional installation is essential for proper refrigerant charging and airflow balancing.

Warranty & Reliability

Goodman provides 10 years of parts coverage when you register online within 30 days of installation. This covers compressor, coil, and major components but excludes labor costs. Registration is straightforward through Goodman's website and protects your investment against manufacturing defects, though it's not a transferable warranty across homeowners.

Specifications

SKU	CAPF4961D6
Brand/Manufacturer	Goodman
Cooling BTU	47,000
Heating BTU	120,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	72
Weight (in lbs)	50.000000
Feature	Spec
Energy Star	Yes
SEER1 (Efficiency)	18
Condenser Stages	Two Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	7/8"
Max Breaker Size	50 amps
Min. Breaker Size	29.3 amps
Tonnage	5 Ton
Valve Type	Sweat
Height	30"
Width	24.5"
Depth	21"
Resources	CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	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.
AHRI Certificate Number	7368842
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil

Frequently Asked Questions

How does 17.5 SEER1 compare to other systems in this price range? +

17.5 SEER1 is solid mid-tier efficiency. Higher-end Goodman and competing brands reach 18-20 SEER1, cutting cooling costs 5-10% more annually. For moderate climates, this gap costs roughly $50-100 per year. The trade-off makes sense if upfront budget is tight.

Will this furnace work with my existing ductwork? +

Likely yes if your home has standard forced-air ducts. The upflow A-coil design fits most installations built after 1990. Have a technician verify duct sizing matches the 2,000 CFM maximum airflow. Undersized ducts reduce efficiency and comfort significantly.

What refrigerant does this unit use, and does it matter? +

This unit accepts R410A or R22 depending on the coil paired with it. R410A is standard for new systems and widely available. R22 is obsolete, more expensive, and being phased out. Always specify R410A with new installations to avoid future supply and cost issues.

Is Goodman reliable compared to Carrier or Lennox? +

Goodman equipment performs comparably to Carrier mid-tier units at lower cost. Independent repair data shows similar failure rates across 5-10 years. Goodman's value proposition is price, not premium durability. All require professional installation and maintenance for longevity.

Does online registration actually protect me if something breaks? +

Yes, but only for defects, not wear items or installer errors. Register within 30 days or lose coverage. Keep your receipt and registration proof. Labor costs fall on you, so factor service plan costs into total ownership expenses.

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