2 Ton 15 SEER 97% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This 2-ton/3-ton split system excels for homeowners upgrading older furnaces who want genuine efficiency gains without premium pricing. The 97% AFUE furnace and 16 SEER2 AC condenser deliver measurable energy savings, especially in heating-dominant climates where the modulating burner minimizes short-cycling.

Review

Goodman's 2-ton furnace and 3-ton air conditioner system addresses a common retrofit scenario: upgrading legacy equipment without full replacement. This upflow configuration fits existing ductwork and cabinets, reducing installation complexity. The 97% AFUE rating and 16 SEER2 efficiency place it solidly in the mid-tier market, offering genuine energy savings over decade-old systems while avoiding boutique pricing that doesn't justify the performance delta.

The furnace delivers 80,000 BTU heating output through a modulating burner that steps between stages rather than cycling on-off, reducing temperature swings and auxiliary heating periods. The air conditioner side provides 23,600 BTU cooling with a scroll compressor and single-stage operation. Variable-speed ECM blower motor runs from 0 to 1200 CFM, matching output to load instead of maxing continuously. This layered efficiency approach keeps electricity consumption reasonable while the 97% AFUE furnace cuts gas waste.

Pros & Cons

Pros

97% AFUE furnace rating translates to minimal wasted fuel, saving $200-400 annually versus 80% units
Modulating burner adjusts output in stages rather than on-off cycling, improving comfort and efficiency
16 SEER2 air conditioner qualifies as Energy Star certified with 23,600 BTU cooling capacity
Variable-speed ECM blower motor optimizes airflow from 0-1200 CFM, reducing runtime and noise
Compact A-coil design fits tight upflow installations where space is limited

Cons

Single-stage compressor cannot modulate cooling output like the furnace, reducing summer efficiency gains
3-ton condenser paired with 2-ton furnace creates tonnage mismatch that may complicate future service calls
71.5 dB noise level slightly louder than premium variable-capacity competitors during AC operation

Who Should Buy

Best For

Homeowners with existing ductwork and furnace plenums who want straightforward efficiency upgrades without oversizing equipment. Best suited for mixed climates where heating and cooling loads are moderate and contractors value Goodman's parts availability.

Consider Alternatives If

Buyers in extreme-cooling climates should consider true 2-ton/2-ton matched pairs, and those seeking whisper-quiet operation may find the 71.5 dB output objectionable.

2 Ton 15 SEER 97% AFUE 80,000 BTU Goodman Gas Furn

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Installation

Upflow configuration fits standard attic or basement installations. The 3-ton condenser is heavier than a true 2-ton match, so lifting equipment helps. Plastic PVC flue venting simplifies exhaust routing versus metal in tight spaces. Line set sizing is straightforward, 3/8 inch liquid line and 3/4 inch suction line with 3/4 inch insulation. Standard 115V, 60 Hz electrical connection with 12.4 to 20 amp breaker accommodates most residential panels.

Warranty & Reliability

Goodman backs the system with 10 years parts coverage upon online registration. Registration is critical, so homeowners must complete it within the purchase window. This protection covers compressor failure and major component breakdown, standard for the brand. Labor costs fall on the homeowner's service technician, so confirm your installer includes extended labor protection if desired.

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 Ton
Height	34.5"
Width	17.5"
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	7424265
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	97%
Blower Motor	Variable Speed - ECM
Maximum CFM	1200
Burner Stages	Modulating
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why does this system list 2 tons for furnace but 3 tons for the air conditioner? +

The tonnage mismatch reflects how Goodman packages these splits. The 3-ton condenser delivers 23,600 BTU cooling capacity, while the furnace focuses on heating. This isn't an error but does mean future service technicians must reference both ratings. Matched pairs minimize confusion, but this combination works if your cooling load truly requires 3 tons.

Can this system use both R410A and R22 refrigerant? +

No, the system must be charged with one or the other at installation. R410A is standard for new systems and performs better in modern compressors. R22 compatibility exists for servicing legacy systems, but new installations should use R410A exclusively. Confirm your installer uses R410A unless retrofitting an older R22 system.

How much energy will I actually save with 97% AFUE versus an 80% furnace? +

A 17-point AFUE jump saves roughly 17% of heating fuel annually. For average home heating costs around $1200 yearly, expect $200-400 in gas savings depending on climate and usage. Payback typically occurs within 7-10 years, after which savings are pure return on investment.

How does single-stage cooling affect summer efficiency versus modulating compressors? +

Single-stage compressors run full capacity or off, missing the part-load efficiency sweet spot. Variable-capacity units modulate to match demand, reducing runtime and electricity use. During mild spring and fall days, modulating systems outperform significantly. In peak summer, both work hard, so the efficiency gap narrows but the modulating unit still edges ahead.

What happens if I don't register the warranty online? +

Without registration, Goodman may deny or delay warranty claims. Registration is free and takes minutes online. Keep your paperwork and confirmation email. Most dealers register on your behalf, but confirm this before leaving the installation site.

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