Independent Review · Updated June 2026

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

High-efficiency 4-ton system delivers 96% AFUE heating and 16 SEER cooling reliability

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
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// Bottom Line
This system works best for homeowners replacing older equipment in moderate climates who value both heating and cooling efficiency without overspending. The 96% AFUE furnace paired with a 16 SEER condenser makes it ideal for mixed-use regions where both seasons matter equally.

Review

The Goodman 4-ton upflow system represents solid mid-market positioning in today's HVAC landscape. At 96% AFUE and 16 SEER, it delivers respectable efficiency across both heating and cooling without premium pricing. Goodman's reputation for reliability and parts availability makes this SKU TX5N4 a practical choice for contractors managing customer budgets. The system handles 120,000 BTU heating output and 48,000 BTU cooling capacity, matching typical single-family homes in 2,000 to 2,500 square foot spaces. Two-stage operation on both heating and cooling sides brings operational quietness and comfort consistency.

Real-world performance hinges on your climate and usage patterns. The 96% AFUE furnace recovers 96 cents of every heating dollar as usable warmth, a meaningful jump from older 80% units that still operate in many homes. The 16 SEER condenser, paired with R410A refrigerant and a scroll compressor, delivers consistent cooling efficiency without aggressive noise, measured at 74 dB. The variable-speed ECM blower motor intelligently modulates airflow up to 2,000 CFM, reducing energy waste during partial-load operation. These specifications translate to measurable utility savings in mixed climates, though homes in extreme heat zones may justify investing in 18+ SEER equipment.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency keeps heating costs down, especially valuable during cold months in northern climates
  • 16 SEER cooling efficiency qualifies for ENERGY STAR, reducing summer cooling loads meaningfully
  • Two-stage burner and two-stage compressor provide modulation for quieter, more even comfort at 74 dB
  • Variable-speed ECM blower motor delivers up to 2,000 CFM and adapts to load for better humidity control
  • PVC exhaust compatibility simplifies venting in modern homes and retrofit installations
  • 10-year warranty with online registration covers major components and provides solid peace of mind

Cons

  • 16 SEER1 rating is solid but not cutting-edge; newer 18+ SEER systems offer greater efficiency if future rebates justify the cost
  • Two-stage design means some contractors may charge more for proper staging configuration and ductwork balancing
  • Requires 208/230V single-phase power, limiting flexibility in installations already served by three-phase commercial panels

Who Should Buy

Best For

Homeowners replacing 10+ year old systems in areas with both heating and cooling seasons, particularly those seeking a balanced efficiency investment without premium pricing. Contractors valuing Goodman's established parts supply and straightforward two-stage design also appreciate this SKU for consistent customer satisfaction.

Consider Alternatives If

Anyone in predominantly heating-only climates should consider higher-AFUE furnaces, and homes in extreme cooling zones may benefit more from 18+ SEER units despite the higher upfront cost.

4 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
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Installation

Installation requires 208/230V single-phase power and a 27.7 to 45 amp breaker sized to local code. The upflow/horizontal A-coil configuration fits standard return-air plenums with 36.25 inch height and 35.5 inch width and depth footprint. Liquid lines measure 3/8 inch and suction lines 7/8 inch with sweat valve connections, standard for this tonnage. PVC exhaust compatibility simplifies venting work. Proper ductwork sizing, refrigerant charge verification, and two-stage thermostat programming are essential for rated performance.

Warranty & Reliability

Goodman covers this system with a 10-year parts warranty upon online registration, a solid commitment for mid-tier equipment. Coverage includes compressor, coil, and furnace heat exchanger defects. Labor is not included, so homeowners should confirm contractor warranty terms separately. Registration is straightforward and typically completed during installation, protecting your investment from day one.

Specifications

SKUTX5N4
Brand/ManufacturerGoodman
Cooling BTU48,000
Heating BTU120,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)2.500000
FeatureSpec
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
Tonnage4 Ton
StyleA-Coil
Height36.25"
Width35.5"
Depth35.5"
ResourcesGoodman Specifications 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 Number7368842
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000
Energy StarYes
Burner StagesTwo
Fuel TypePropane, Natural Gas
SEER1 (Efficiency)16
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size45 amps
Min. Breaker Size27.7 amps
Valve TypeSweat

Frequently Asked Questions

What size home does this 4-ton system serve? +
A 4-ton system handles approximately 48,000 BTU cooling and 120,000 BTU heating, suitable for typical homes of 2,000 to 2,500 square feet in moderate climates. Exact sizing depends on insulation, window area, sun exposure, and local temperature extremes. Always request a Manual J load calculation from your installer before purchasing.
Can I install this in a tight basement or attic space? +
The upflow A-coil measures 36.25 inches tall, 35.5 inches wide, and 35.5 inches deep. Verify clearance for filter access and coil cleaning. Horizontal installation is possible if your return plenum allows side-mounted orientation. Confirm ductwork pathways and PVC exhaust routing before committing to purchase.
How does 16 SEER compare to other systems? +
16 SEER is solid mid-tier performance, delivering roughly 15-20% better cooling efficiency than 13 SEER baseline units common in older homes. Units rated 18+ SEER use variable-speed compressors and enhanced expansion devices, improving efficiency further but at higher cost. For most mixed climates, 16 SEER justifies its cost through utility savings.
Is Goodman reliable compared to premium brands? +
Goodman has earned contractor trust for parts availability and straightforward mechanics. Scroll compressors and two-stage design are proven technologies used across price tiers. Premium brands may offer quieter operation or higher efficiency, but Goodman delivers solid value and fewer field failures when properly installed and maintained.
What does the 10-year warranty actually cover? +
Coverage includes the compressor, coil, and furnace heat exchanger against defects with online registration. Labor is typically the homeowner's responsibility unless a service plan is purchased. Review your registration confirmation to confirm coverage dates and conditions.

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