Independent Review · Updated June 2026

3 Ton 13 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Solid 96% AFUE furnace and 13 SEER AC combo at an unbeatable $601 price point

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 13 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
$601
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman combo system delivers exceptional value for homeowners and contractors working on tight budgets who need proven gas furnace and cooling performance. At $601, you get legitimate 96% AFUE heating and 13 SEER cooling without paying for premium branding, making it ideal for rental properties, replacements, and cost-conscious residential applications.

Review

Goodman's 3 Ton gas furnace and air conditioner combination packs legitimate performance into an aggressively priced $601 system. This upflow configuration handles both heating and cooling for typical residential installations, replacing older GSX130362, GSX130363, and GSX130365 models. The dual-fuel approach keeps setup straightforward, pairing a gas-fired furnace rated at 120,000 BTU with a 36,000 BTU cooling capacity. Online Supply's SKU LS38783830 targets contractors and homeowners who refuse to overpay for competent mid-range equipment.

Performance metrics validate the price-to-efficiency ratio. The furnace achieves 96% AFUE, converting nearly all fuel energy into usable heat, while the air conditioning side delivers 13 SEER cooling through a single-stage reciprocating compressor. That R410A or R22 refrigerant compatibility offers flexibility across installations. The multi-speed blower motor runs at up to 2000 CFM, optimizing airflow for both heating and cooling seasons. These aren't cutting-edge ratings, but they outperform budget units and deliver measurable utility bill reductions.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency exceeds most mid-range alternatives, reducing heating costs significantly
  • 13 SEER cooling rating provides solid air conditioning performance for moderate climates
  • Single-stage reciprocating compressor is durable and field-repair friendly for contractors
  • Multi-speed blower motor optimizes comfort and reduces utility consumption across seasons
  • 10-year warranty with online registration covers substantial equipment failure protection

Cons

  • Single-stage cooling means no variable capacity, limiting efficiency in partial-load conditions
  • 74 dB noise level is audible during operation, slightly higher than inverter-driven units
  • Not Energy Star certified despite solid efficiency ratings, missing utility rebates in some regions

Who Should Buy

Best For

Budget-conscious homeowners replacing existing systems and HVAC contractors bidding competitive replacement jobs where efficiency and reliability matter more than premium features. This works well for areas with moderate cooling demands and high winter heating needs.

Consider Alternatives If

Anyone seeking maximum efficiency ratings (SEER2 15+, AFUE 98%+) or those prioritizing ultra-quiet operation should explore higher-tier models despite the cost premium.

3 Ton 13 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
$601
Buy at HVACDirect →

Installation

Upflow orientation suits most basement and crawlspace placements. The A-coil style integrates cleanly with ductwork. Electrical demands remain modest at 115V single-phase 60 Hz with a 19.1 to 30 amp breaker range, eliminating expensive panel upgrades. Plastic PVC exhaust flue venting on the right side simplifies installation. The 30-foot suction line with 3/8-inch insulation comes ready for field deployment. Experienced contractors typically complete installation in one day.

Warranty & Reliability

10-year coverage with online registration provides solid protection for component failure. This warranty mirrors industry mid-range standards and covers compressor, heat exchanger, and electrical components. Registration is mandatory to activate coverage, so document your purchase. The warranty does not cover maintenance neglect or improper installation, so professional setup is recommended to preserve coverage.

Specifications

SKULS38783830
Brand/ManufacturerOnline Supply
Cooling BTU36,000
Heating BTU120,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)30.000000
FeatureSpec
ReplacesGSX130362, GSX130363, GSX130365
Energy StarNo
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 amps
Min. Breaker Size19.1 amps
Tonnage3.5 Ton
Valve TypeSweat
Height22"
Width24.5"
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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti Speed
Maximum CFM2000
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

How does 13 SEER compare to modern high-efficiency units? +
13 SEER ranks in the mid-efficiency tier. Newer Energy Star units reach 15+ SEER with variable-capacity compressors. However, 13 SEER still delivers 25-30% better cooling efficiency than 10-year-old equipment, translating to measurable summer utility reductions for most homeowners.
Is this system compatible with my existing ductwork? +
The 3.5-ton cooling capacity with 2000 CFM blower works with properly sized ducts designed for 3-ton systems. Verify your existing ductwork dimensions and layout with a contractor before purchasing. Undersized ducts will reduce efficiency and comfort.
What refrigerant should I use, R410A or R22? +
R410A is the current EPA standard and should be your default choice. R22 is phased out and increasingly expensive. Confirm your existing system compatibility before scheduling installation to avoid costly conversions.
Why is this cheaper than other Goodman systems? +
Single-stage compressors cost less than modulating units. Reciprocating designs are older technology with proven reliability but run louder at 74 dB. You trade variable efficiency and silence for upfront affordability and field-repair simplicity.
Does the warranty cover refrigerant leaks? +
The 10-year warranty covers compressor failure but not routine refrigerant charges or leak repairs beyond manufacturing defects. Maintenance costs fall to the owner, so budget for annual service calls.

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