2 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal Review 2026

// Bottom Line

This Goodman system works best for homeowners upgrading from older equipment who want solid efficiency without premium pricing. The 96% AFUE heating and 16 SEER1 cooling deliver meaningful energy savings, especially in mixed climates where both heating and cooling get regular use.

Review

The Goodman 2-ton horizontal furnace and air conditioner system (SKU LS38343850) occupies a practical middle ground in the residential HVAC market. Priced at $2666, it targets budget-conscious homeowners and contractors who refuse to compromise on efficiency standards. This unit replaces the older GSX16S241 model and brings modern refrigerant compatibility and variable-speed blower technology to systems that might otherwise rely on decade-old equipment. The horizontal A-coil configuration makes it ideal for attic or horizontal installation scenarios common in many homes.

Performance data shows legitimate efficiency credentials. The furnace delivers 80,000 BTU heating output at 96% AFUE, meaning 96 cents of every dollar spent on gas converts to usable heat. Cooling capacity sits at 23,600 BTU with a 16 SEER1 rating, exceeding ENERGY STAR minimums and qualifying for state and utility rebates in most regions. The variable-speed ECM blower maxes out at 1200 CFM and adjusts automatically to room demand. However, the single-stage compressor lacks modulation, so on mild days the system runs at full capacity rather than scaling back to save energy.

Pros & Cons

Pros

96% AFUE furnace efficiency means lower heating costs compared to 80-90% models
16 SEER1 rating exceeds ENERGY STAR requirements and qualifies for many utility rebates
Two-stage burner and variable-speed ECM blower reduce short-cycling and improve comfort
Scroll compressor technology is proven durable with fewer moving parts than rotary designs
PVC exhaust flue compatibility simplifies installation and reduces material costs

Cons

Single-stage compressor cannot modulate cooling capacity, reducing efficiency at partial loads
71.5 dB noise level runs louder than premium systems, noticeable during operation
Spec sheet discrepancy lists both 2-ton and 3-ton tonnage, creating confusion on actual capacity

Who Should Buy

Best For

Homeowners in moderate climates replacing 10-15 year old systems and wanting efficiency gains without spending $4000+. Contractors looking for reliable mid-range equipment for price-conscious clients who value rebate eligibility.

Consider Alternatives If

Anyone needing quiet operation or seeking variable capacity cooling should look at inverter-driven or multi-stage compressor systems instead.

2 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furn

$2666

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Installation

Installation requires standard 115V, 60Hz single-phase power with a 12.4 to 20-amp breaker. The unit accepts both R410A and R22 refrigerant, giving flexibility for retrofit scenarios. Suction line (3/4 inch) and liquid line (3/8 inch) connections follow industry standards. Horizontal mounting dimensions measure 34.5 inches tall by 17.5 wide by 28.75 deep. PVC exhaust flue compatibility simplifies ductwork compared to metal requirements on older units.

Warranty & Reliability

Goodman provides 10 years parts and labor coverage with online registration, a solid baseline warranty in this price segment. Registration is straightforward and extends protection from the manufacturer's standard 5-year terms. No provisions for extended warranties appear in available documentation. Coverage applies to manufacturing defects but excludes normal maintenance and wear items.

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 Install Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman Warranty You will need AdobeÂ® AcrobatÂ® 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	7368834
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
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

What is the actual tonnage, 2-ton or 3-ton? +

The specification sheet contains conflicting data listing both 2-ton and 3-ton, though the product title and cooling BTU of 23,600 align with a 2-ton unit. Verify with Online Supply before purchase to confirm capacity matches your home's cooling load calculations.

Can this replace my old R22 system without major changes? +

Yes. The unit accepts both R410A and R22 refrigerant, allowing retrofit into existing copper line sets. However, mixing refrigerants is prohibited, so you'll drain the old system completely. PVC exhaust compatibility also simplifies furnace replacement.

How much will this save me annually compared to my 1995 furnace? +

A typical 1995 furnace runs 78-80% AFUE. At 96% AFUE, you'll recover roughly 16-18% of heating costs. For a $1200 annual heating bill, expect $190-220 in yearly savings. Payback occurs in 12-15 years before accounting for rebates.

Is 16 SEER1 better or worse than older SEER2 ratings I see advertised? +

SEER1 and SEER2 use different rating standards. SEER2 numbers run 15-25% lower than SEER1 equivalents. A 16 SEER1 unit roughly equals an 11-12 SEER2 system, so verify comparison apples-to-apples with manufacturers.

Does online registration really matter for the 10-year warranty? +

Yes. Without registration, coverage defaults to 5 years. Registration is free and takes 5 minutes on Goodman's website. Keep your receipt and paperwork to prove installation date.

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