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

// Bottom Line

This Goodman system works best for homeowners upgrading from older equipment who want dependable heating and cooling without premium pricing. The 80% AFUE furnace and 15 SEER air conditioner deliver solid efficiency gains, and the variable-speed blower keeps utility bills reasonable across seasons.

Review

The Goodman 2-ton gas furnace and air conditioner system at $2,486 positions itself squarely in the value segment of the HVAC market. This SKU LS38343850 replaces the older GSX16S241 model and brings variable-speed blower technology to a budget-friendly package. Online Supply backs it with a 10-year warranty, appealing to both DIY homeowners tackling replacements and contractors building cost-conscious installations. The Energy Star certification signals that Goodman met baseline efficiency standards for this equipment class.

Performance specs tell a straightforward story of competent, middle-of-the-road efficiency. The furnace delivers 80,000 BTU heating capacity with 80% AFUE efficiency using a two-stage burner, meaning it modulates heat output and avoids constant cycling. Cooling arrives via a 23,600 BTU capacity unit rated at 15 SEER with a scroll compressor and single-stage operation. The variable-speed blower motor spins up to 2,000 CFM and runs on standard 120V single-phase 60 Hz power. R410A refrigerant support is modern, though older R22 compatibility remains listed.

Pros & Cons

Pros

Variable-speed blower motor reduces runtime costs and improves comfort consistency
Two-stage burner on furnace allows modulated heating, cutting energy waste in mild weather
80,000 BTU heating capacity handles cold climates effectively
Energy Star certified system qualifies for some utility rebates
10-year warranty with online registration provides solid peace of mind
Scroll compressor is proven reliable technology with minimal moving parts

Cons

80% AFUE is baseline efficiency, not high-efficiency like 90%+ models
Single-stage cooling compressor cycles on and off rather than modulating capacity
15 SEER rating trails newer 16+ SEER systems for long-term cooling efficiency
Spec sheet lists contradictory tonnage data, creating confusion about actual capacity

Who Should Buy

Best For

Budget-conscious homeowners replacing 10 to 15-year-old systems who need dependable heating and cooling without spending $3,500 or more. Contractors building value-tier packages for modest homes in transitional climates benefit from the straightforward installation and solid performance.

Consider Alternatives If

Homeowners in severe climates wanting maximum efficiency, or buyers seeking quiet operation, as the 71.5 dB noise level runs louder than high-efficiency units.

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

$2486

Buy at HVACDirect →

Installation

Installation complexity sits at moderate difficulty for skilled contractors. Airflow direction configures for upflow or downflow operation, suiting both basement and attic placement. The system requires a metal exhaust flue for the furnace and standard line sets with 3/8-inch liquid and 3/4-inch suction sizes. Electrical hookup demands 12.4 to 20-amp breaker capacity on standard residential service. Most contractor installations complete in one to two days with typical equipment.

Warranty & Reliability

Goodman includes a 10-year parts warranty activated through online registration, which is standard industry coverage for this price tier. The A-coil evaporator coil carries its own warranty documentation. Registration is free but required, so buyers must complete the step promptly after installation to lock in coverage. This protects against manufacturing defects but excludes wear items and improper installation.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	23,600
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	120 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	30"
Width	24.5"
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	204633307
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Variable Speed
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	3/4"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

What's the actual tonnage of this system? +

The marketing title says 2-ton, but the spec sheet lists 3.5-ton tonnage, creating confusion. The cooling capacity of 23,600 BTU aligns closer to 2-ton actual output. Verify exact tonnage with your installer before purchase, as this discrepancy suggests data entry errors in the product listing.

Can I install this myself, or do I need a professional? +

Professional installation is strongly recommended. Refrigerant handling requires EPA certification, gas line work demands proper safety protocols, and improper installation voids the warranty. Hiring a licensed HVAC contractor ensures proper charging, leak testing, and compliance with local codes.

How efficient is 15 SEER compared to newer systems? +

15 SEER is solid for budget units but trails modern 16 to 18 SEER equipment by 10 to 20 percent in cooling efficiency. Over 15 years, a higher SEER system saves money despite higher upfront cost. For cooling-dominant climates, consider stepping up to 16 SEER or higher models.

Is 80% AFUE furnace efficiency acceptable for my heating bills? +

80% AFUE means 80 percent of fuel energy enters your home, with 20 percent lost up the flue. It's standard for basic furnaces but not high-efficiency. For comparison, 90%+ AFUE models cost $500 to $1,200 more but cut heating costs 10 to 15 percent annually.

Does this system qualify for energy rebates? +

Energy Star certification improves rebate eligibility with some utilities, but check your local programs directly. Many require 16+ SEER cooling and 90%+ AFUE heating for maximum incentives. Rebates typically range from $300 to $1,500 depending on your region.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.