2.5 Ton 15 SEER 96% AFUE 40,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system delivers solid efficiency for homeowners in moderate climates who need both heating and cooling without premium pricing. Best for DIY-friendly installers or contractors looking for a cost-effective retrofit option that doesn't sacrifice performance.

Review

The Goodman 2.5 ton combined gas furnace and air conditioner system represents solid middle-ground equipment for residential HVAC applications. At $643, it undercuts many competitors while delivering respectable efficiency ratings across both heating and cooling functions. This upflow configuration suits standard installations in basements, attics, and utility closets. Online Supply positions this unit as rebate-eligible in many regions, making it an accessible option for homeowners managing replacement timelines and budget constraints.

Heating performance hits 96% AFUE with 40,000 BTU output across two modulating stages, while the air conditioning side delivers 29,000 BTU at 16 SEER2 with Energy Star certification. The variable-speed ECM blower motor ranges from idle to 1200 CFM maximum, adapting automatically to thermal loads instead of running full-bore constantly. This modulation approach addresses both comfort and efficiency simultaneously. Refrigerant compatibility includes R410A and R22, offering flexibility for technicians managing mixed inventory systems.

Pros & Cons

Pros

96% AFUE furnace efficiency exceeds most standard units, reducing heating costs significantly
16 SEER2 cooling rating with Energy Star certification handles 29,000 BTU output efficiently
Variable-speed ECM blower motor adjusts airflow from 0-1200 CFM, minimizing energy waste
Two-stage burner provides modulating heat for better comfort and lower runtime costs
Compact dimensions (30 x 17.5 x 21 inches) fit standard closets and utility spaces

Cons

Single-stage compressor lacks the efficiency advantage of two-stage cooling systems
71.5 dB noise level is moderately loud, noticeable during operation in quiet homes
Limited to 115V single-phase power, requiring standard residential electrical service

Who Should Buy

Best For

Homeowners in mild to moderate climates upgrading older 13-14 SEER systems will see measurable savings on utility bills. Budget-conscious contractors and property investors appreciate the $643 price point paired with 10-year warranty coverage.

Consider Alternatives If

Those in extreme heat climates needing maximum cooling capacity should explore two-stage compressor models, and homeowners sensitive to operating noise should audition this unit first.

2.5 Ton 15 SEER 96% AFUE 40,000 BTU Goodman Gas Fu

$643

Buy at HVACDirect →

Installation

This unit requires 115V single-phase 60 Hz power with circuit breaker sizing between 17.1 and 25 amps, standard for residential homes. PVC or plastic exhaust flue venting is required, simplifying ductwork versus traditional metal alternatives. The A-coil configuration works with most existing ductwork patterns. Suction line insulation (3/4 inch thickness) and 50-foot line set length cover typical residential distances. Upflow/horizontal orientation provides installation flexibility.

Warranty & Reliability

The 10-year warranty requires online registration and covers manufacturing defects in compressor, coil, and blower components. This timeframe aligns with typical system lifecycles for mid-tier equipment. Registration is straightforward through Online Supply's website. Parts coverage is standard, though labor costs remain the buyer's responsibility after the first year, which is typical across the industry.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	29,000
Heating BTU	40,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	71.5
Weight (in lbs)	30.000000
Feature	Spec
Energy Star	Yes
SEER1 (Efficiency)	16
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	7/8"
Max Breaker Size	25 amps
Min. Breaker Size	17.1 amps
Tonnage	3 Ton
Height	30"
Width	17.5"
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	7368841
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	1200
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

How does 16 SEER2 compare to older systems I might replace? +

A 16 SEER2 unit cooling 29,000 BTU uses roughly 30 percent less electricity than 10 SEER equipment from ten years ago. For homeowners running AC six months annually, this translates to $300-400 yearly savings depending on local electricity rates and usage patterns.

Can I install this myself if I have electrical and ductwork experience? +

The ECM blower, refrigerant connections, and gas line require EPA 608 certification and local permits in most jurisdictions. Professional installation ensures AHRI compliance, maintains warranty coverage, and guarantees safe operation with proper airflow commissioning.

Will the two-stage burner really reduce my heating bills? +

Two-stage burners run at 60-70 percent capacity during mild weather instead of cycling full-on constantly. This modulation reduces runtime by 15-25 percent on average, delivering meaningful winter savings while maintaining consistent home temperature without overshooting.

Is single-stage cooling a limitation compared to two-stage units? +

Single-stage compressors cost less upfront and work fine in moderate climates, but two-stage models offer 8-12 percent better cooling efficiency. In extreme heat regions exceeding 95 degrees frequently, two-stage cooling provides noticeably better comfort and lower operating costs.

What happens after the 10-year warranty expires? +

Warranty coverage ends, but the unit typically runs 15-20 more years with proper maintenance. Service costs become the homeowner's responsibility, making preventive filter changes and annual checkups cost-effective insurance.

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