2 Ton 15 SEER 98% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This system targets cost-conscious homeowners and contractors who need reliable performance without premium pricing. The 97% AFUE furnace and modulating burner deliver efficient heating, while the 16 SEER2 air conditioner handles moderate cooling demands competently.

Review

The Goodman 2-ton gas furnace and air conditioner system represents a practical middle ground in the budget HVAC market. Priced at $647, this upflow A-coil configuration appeals to contractors and homeowners seeking straightforward cooling and heating without premium features. The combination of an 80,000 BTU furnace and 23,600 BTU condenser gives it versatility across modest-sized homes and standard replacement applications.

Efficiency numbers tell a compelling story here. The furnace delivers 97% AFUE with a modulating burner that adjusts output rather than cycling on and off, reducing wear and improving comfort. The air conditioner achieves 16 SEER2 efficiency and carries Energy Star certification. The variable-speed ECM blower motor responds to heating and cooling demand intelligently, using less electricity than fixed-speed alternatives. These specifications indicate genuine engineering attention to operating costs.

Pros & Cons

Pros

97% AFUE furnace efficiency with modulating burner stages reduces heating costs and runtime noise
16 SEER2 cooling rating qualifies for Energy Star certification with 23,600 BTU capacity
Variable-speed ECM blower motor improves comfort and reduces electrical consumption versus fixed-speed alternatives
Scroll compressor design is durable and widely supported by HVAC technicians
Affordable $647 price point significantly undercuts comparable Goodman systems

Cons

Single-stage cooling means the AC runs at full capacity immediately, less efficient than two-stage or variable-capacity designs
71.5 dB noise level is acceptable but louder than premium units, noticeable during cooling cycles
No dual-fuel or heat pump option limits flexibility for homeowners in milder climates

Who Should Buy

Best For

Homeowners in moderate cooling climates who prioritize upfront cost savings and don't mind equipment runtime noise. Contractors installing replacement systems for budget-conscious customers who value efficiency over cutting-edge technology also fit this profile well.

Consider Alternatives If

Anyone needing high-efficiency cooling in hot climates should look at two-stage or variable-capacity systems, which justify their higher cost through energy savings.

2 Ton 15 SEER 98% AFUE 80,000 BTU Goodman Gas Furn

$647

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Installation

Installation follows standard upflow configuration with straightforward connections. The 3/8-inch liquid line and 3/4-inch suction line use common fittings, and the PVC exhaust flue requirement simplifies venting in modern homes. Electrical demands are minimal at 115 volts single-phase 60 Hz with a 12.4 to 20-amp breaker range, fitting most residential panels without upgrades.

Warranty & Reliability

Goodman includes a 10-year parts warranty upon online registration, a consumer-friendly approach that protects against compressor failure and major component defects. Registration is straightforward and provides documentation of coverage. This warranty term matches industry standards for mid-tier equipment and reflects Goodman's confidence in reliability.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	23,600
Heating BTU	80,000
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)	22.000000
Feature	Spec
Replaces	GSX16S241
Energy Star	Yes
SEER1 (Efficiency)	16
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	20 amps
Min. Breaker Size	12.4 amps
Tonnage	3.5 Ton
Height	34.5"
Width	21"
Depth	28.75"
Resources	Goodman Brochure Goodman Installations Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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.
Configuration	Upflow/Horizontal
Liquid Line	3/8"
Suction Line	3/4"
Style	A-Coil
AHRI Certificate Number	7424266
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	97%
Blower Motor	Variable Speed - ECM
Maximum CFM	1600
Burner Stages	Modulating
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why is the cooling capacity rated at 23,600 BTU if this is a 2-ton system? +

The tonnage refers to cooling capacity in 12,000 BTU increments (2 tons equals 24,000 BTU nominal). The 23,600 BTU actual rating is normal variation from nameplate tonnage and reflects real-world testing conditions under AHRI standards. This system still functions as a legitimate 2-ton unit.

Can this unit use both R410A and R22 refrigerant? +

No, the unit is charged with one or the other at manufacturing, not both simultaneously. Your installer will confirm which refrigerant your system uses during startup. This flexibility allows Online Supply to serve customers with different legacy equipment considerations.

How does the modulating burner improve performance? +

The modulating burner adjusts flame size continuously rather than cycling full-on and full-off. This reduces temperature swings, cuts short-cycle wear on components, and lowers heating costs by 5 to 10 percent. You'll notice steadier temperatures and fewer temperature dips between cycles.

Is 16 SEER2 competitive with modern high-efficiency units? +

SEER2 is the updated efficiency metric, making direct comparison with older SEER ratings difficult. The 16 SEER2 rating is respectable for budget equipment but trails premium units at 20+ SEER2. In moderate climates, the lower cost often justifies accepting slightly higher operating expenses over 15 years.

What does the 10-year warranty actually cover? +

Goodman's registered warranty covers parts defects and failures on the compressor, heat exchanger, and major assemblies. It does not cover labor costs. Registration through Goodman's website is required within 30 days of installation to activate full coverage.

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