2.5 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal Review 2026

// Bottom Line

This Goodman system is ideal for homeowners and contractors seeking a dependable, efficient combo unit at a competitive price point. The 92% AFUE furnace and 14 SEER air conditioner deliver solid year-round performance without premium pricing.

Review

The Goodman 2.5 ton horizontal gas furnace and air conditioner system lands squarely in the mid-market segment where reliability and value matter most. This SKU TX3N4 combines straightforward engineering with proven component selection, making it a dependable choice for homeowners replacing 15 to 20-year-old equipment. Goodman's reputation for durability shines through this design, though it lacks the advanced features commanding premium pricing from top-tier manufacturers.

Performance specs tell a balanced story. The furnace delivers 100,000 BTU at 92% AFUE, outpacing minimum federal efficiency standards by a comfortable margin. Cooling capacity reaches 30,000 BTU with 14 SEER efficiency, achieved through a single-stage scroll compressor and R410A refrigerant. The multi-speed blower motor pulls up to 2000 CFM, enabling flexible airflow management. These figures suggest this unit excels in moderate climates but won't dramatically outperform better-insulated competitors in extreme heating or cooling demands.

Pros & Cons

Pros

92% AFUE heating efficiency exceeds federal minimums and cuts fuel costs meaningfully
14 SEER cooling meets modern efficiency standards for reasonable operating expenses
Horizontal configuration fits attic and crawlspace installations where vertical units won't work
Multi-speed blower motor allows better comfort control and quieter operation than single-speed alternatives
PVC exhaust compatibility simplifies installation in many retrofit applications
10-year warranty with online registration provides solid long-term coverage

Cons

Single-stage burner and condenser limit efficiency gains at partial load conditions
72 dB noise level is louder than premium variable-speed models, noticeable during operation
Not Energy Star rated, missing incentive eligibility some utilities offer for qualified units

Who Should Buy

Best For

Homeowners upgrading aging furnace-AC systems who prioritize reliability and reasonable efficiency without paying for premium features. Contractors installing in budget-conscious residential projects where horizontal configuration is mandatory.

Consider Alternatives If

Anyone seeking ultra-high efficiency (16+ SEER) or variable-stage operation, or those in areas with Energy Star rebate programs that exclude this unit.

2.5 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas F

$89

Buy at HVACDirect →

Installation

Horizontal orientation makes this unit ideal for attic installations or tight crawlspace applications. The 21-inch height and 26-inch depth fit standard cavities. PVC exhaust capability simplifies venting compared to metal alternatives, reducing labor time on many jobs. Electrical requirements are straightforward: 208/230V single-phase 60Hz service with 17.1 to 25-amp breaker sizing. Most HVAC contractors complete installation in a standard workday.

Warranty & Reliability

Goodman backs this system with a 10-year parts warranty upon online registration. Coverage applies to compressor, heat exchanger, and major components. Registration is essential, as standard limited warranty periods are shorter. This solid protection aligns with industry mid-tier expectations and reflects manufacturer confidence in design reliability.

Specifications

SKU	TX3N4
Brand/Manufacturer	Goodman
Cooling BTU	30,000
Heating BTU	100,000
Refrigerant	R410A
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	72
Weight (in lbs)	2.500000
Feature	Spec
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	92%
Blower Motor	Multi Speed
Maximum CFM	2000
Configuration	Horizontal
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Height	21"
Width	21.125"
Depth	26"
Resources	CHPF Installation Manual CHPF 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.
Energy Star	No
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	25 amps
Min. Breaker Size	17.1 amps
Tonnage	3.5 Ton
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil

Frequently Asked Questions

Why is this unit priced at $89 when typical systems cost thousands? +

This appears to be an equipment-only wholesale price for contractors, not installed system cost. Final customer pricing includes evaporator coil, lineset, installation labor, permits, and refrigerant charging, typically totaling $3,500 to $5,500 depending on region and complexity.

Can I install this in an attic space with limited headroom? +

Yes. The 21-inch height and horizontal configuration work well in shallow attic cavities. Ensure 18 inches clearance above for service access. The 26-inch depth requires adequate rafter spacing. PVC exhaust venting simplifies termination through roof or gable wall.

How does 14 SEER compare to newer high-efficiency units? +

14 SEER meets current minimum federal standards (13 SEER for split systems). Premium units reach 16 to 21 SEER through variable-speed compressors and advanced controls. This unit performs well in moderate climates, though won't maximize utility rebates in areas requiring 15+ SEER.

Is 92% AFUE furnace efficiency worth the cost versus 80% units? +

Yes. Over 15 years, 92% AFUE saves approximately $1,200 to $1,800 in heating fuel costs versus 80% AFUE in northern climates. Payback typically occurs within five years, making this efficiency tier standard practice for replacement systems.

What does the 10-year warranty actually cover? +

Parts coverage includes compressor, heat exchanger, coils, and major components with online registration. Labor and refrigerant are excluded. Goodman honors claims promptly when equipment fails from manufacturing defects, not misinstallation or lack of maintenance.

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