Independent Review · Updated June 2026

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

High-efficiency two-ton split system with 96% AFUE heating and 16 SEER cooling

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
2 Ton 15 SEER 96% AFUE 40,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system excels for homeowners seeking balanced heating and cooling efficiency without premium pricing. The 96% AFUE furnace and 16 SEER condenser make it ideal for moderate climates where both seasons demand serious attention.

Review

Goodman's 2-ton split system sits in the sensible middle ground of the HVAC market, targeting homeowners who want measurable efficiency gains without flagship pricing. This upflow configuration pairs a 40,000 BTU gas furnace with a 23,600 BTU cooling condenser, making it suitable for modest to medium-sized homes in mixed climates. The unit carries AHRI certification (7368841) and qualifies for Energy Star status, signals that this equipment meets recognized performance standards.

Performance numbers here tell a straightforward story. The furnace achieves 96% AFUE, meaning 96 cents of every heating dollar goes directly into your home instead of up the flue. The condenser delivers 16 SEER cooling efficiency with a single-stage scroll compressor, which runs efficiently but lacks modulating capability. The variable-speed ECM blower motor pulls up to 1200 CFM and operates at a reasonable 71.5 dB, reducing the industrial noise many homeowners associate with forced-air systems. Two-stage burner modulation on the heating side provides better comfort management than single-stage alternatives.

Pros & Cons

Pros

  • 96% AFUE furnace delivers exceptional heating efficiency, reducing winter fuel costs significantly
  • 16 SEER condenser qualifies as Energy Star, catching available utility rebates
  • Variable-speed ECM blower motor adjusts automatically, improving comfort and reducing noise to 71.5 dB
  • Two-stage burner provides modulating heat output for more consistent temperatures
  • A-coil configuration integrates seamlessly with existing ductwork in upflow applications

Cons

  • Spec sheet lists conflicting tonnage information (2-ton cooling versus 3-ton rating), creating documentation confusion
  • Single-stage compressor in the condenser means cooling runs at full capacity or off, with no intermediate modulation
  • Requires R410A or R22 refrigerant, limiting future upgrade flexibility as industry transitions to new standards

Who Should Buy

Best For

Contractors and homeowners replacing older 2-ton systems in homes with adequate ductwork benefit most from this unit's reliability and rebate eligibility. Budget-conscious buyers wanting solid efficiency metrics without ultra-premium costs find real value here.

Consider Alternatives If

Skip this if your home needs variable-capacity cooling or if you require a true 3-ton unit for larger spaces.

2 Ton 15 SEER 96% AFUE 40,000 BTU Goodman Gas Furn
$0
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Installation

Installation requires standard split-system connections, 3/8-inch liquid lines and 3/4-inch suction lines with 3/4-inch insulation thickness. The upflow A-coil works with existing ductwork in homes designed for that configuration. Electrical demands are modest at 115V single-phase 60 Hz, with a minimum 12.4-amp breaker and maximum 20-amp breaker requirement. Plastic or PVC exhaust flue is mandatory for the gas furnace component.

Warranty & Reliability

Goodman backs this system with a 10-year parts warranty when you register the unit online. This covers manufacturing defects in both the furnace and condenser, providing meaningful protection without lifetime claims. Registration is straightforward and unlocks the full warranty period immediately upon installation.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU23,600
Heating BTU40,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)71.5
Weight (in lbs)22.000000
FeatureSpec
ReplacesGSX16S241
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size20 amps
Min. Breaker Size12.4 amps
Tonnage3 Ton
Height26"
Width17.5"
Depth21"
ResourcesCAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 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 Number7368841
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM1200
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypePropane, Natural Gas
Liquid Line3/8"
Suction Line3/4"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

What's the actual tonnage of this unit? +
The spec sheet shows conflicting information: cooling capacity lists 23,600 BTU (approximately 2 tons) while tonnage field states 3 tons. For practical purposes, treat this as a 2-ton system based on measured cooling output. Contact Online Supply for clarification before ordering.
Can I install this myself if I have HVAC experience? +
EPA Section 608 certification is required for any refrigerant handling. The furnace installation requires gas line connection and venting to PVC or plastic flue, which many jurisdictions require licensed contractors for safety and code compliance.
How does 16 SEER compare to other units in this price range? +
16 SEER is solid mid-range efficiency, roughly 20 percent better than minimum 13 SEER units. High-end systems reach 20-24 SEER but cost significantly more. For moderate cooling demands, this represents reasonable payback on electric savings.
Will this replace my old GSX16S241 equipment? +
Yes, this unit specifically replaces the GSX16S241 model. However, verify your existing furnace tonnage matches before ordering, as mixed capacities can create comfort and efficiency problems in split systems.
What happens if I register this unit after installation? +
Online registration activates the 10-year warranty. Goodman requires proof of purchase and installation date, so register promptly with your receipt and contractor documentation.

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