Independent Review · Updated June 2026

2.5 Ton 13 SEER 96% AFUE 40,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency 2.5-ton combo system with 96% AFUE and 13 SEER for moderate climates

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
2.5 Ton 13 SEER 96% AFUE 40,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
Best for homeowners in mixed climates seeking solid heating and cooling without premium pricing. The 96% AFUE furnace and 13 SEER air conditioner balance efficiency gains with reasonable upfront costs, making this ideal for modest-sized homes where balanced performance matters more than cutting-edge specs.

Review

Goodman's 2.5-ton system pairs a 40,000 BTU furnace with a 30,000 BTU air conditioner in a compact upflow configuration. This mid-capacity combo strikes a practical balance for homes between 1,500 and 2,500 square feet. The 96% AFUE rating and 13 SEER efficiency place it solidly in the high-efficiency category without venturing into premium pricing territory. Online Supply positions this as a dependable workhorse for contractors and homeowners prioritizing steady performance over cutting-edge technology.

The furnace delivers 40,000 BTU with a two-stage burner and multi-speed ECM blower, allowing it to modulate output based on demand. The air conditioner's 30,000 BTU capacity with single-stage reciprocating compressor handles 2.5 tons of cooling. At 13 SEER, this unit qualifies as ENERGY STAR certified. The combination achieves 96% AFUE heating efficiency, translating to measurable savings on winter gas bills. Operating at 73 dB, it's moderately loud but typical for this equipment class. The 115V, single-phase electrical requirement keeps installation straightforward on standard residential circuits.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
  • Two-stage burner and multi-speed ECM blower deliver consistent comfort without energy waste
  • 13 SEER cooling efficiency qualifies as ENERGY STAR, lowering annual AC costs
  • Compact A-coil design fits tight upflow installations with 22-inch height and 17.5-inch width
  • PVC flue compatibility simplifies venting on retrofit projects without masonry chimneys

Cons

  • Single-stage compressor limits efficiency gains compared to dual-stage designs in variable-load scenarios
  • 73 dB noise level is moderately loud for outdoor operation near living spaces
  • R410A/R22 refrigerant compatibility adds service complexity if mixing refrigerants becomes necessary

Who Should Buy

Best For

Homeowners in transitional climates (not extreme heat or cold) with 2.5-ton cooling needs and tight equipment spaces. Contractors valuing straightforward installation and reliable mid-tier performance on budget-conscious residential projects.

Consider Alternatives If

Those seeking highest-tier efficiency (15+ SEER, 98%+ AFUE), homes requiring variable-capacity compressors for precise humidity control, or installations where noise below 70 dB is critical.

2.5 Ton 13 SEER 96% AFUE 40,000 BTU Goodman Gas Fu
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Installation

Installation is contractor-friendly with standard sweat-type valve connections using 3/8-inch liquid and 3/4-inch suction lines. The 50-foot pre-insulated suction line reduces on-site fabrication. PVC flue compatibility eliminates expensive chimney modifications. The compact 22-inch height works in tight attics and basements. A 16.7 to 25-amp breaker accommodates most existing panels. This upflow/horizontal flexibility suits varied installation scenarios.

Warranty & Reliability

The 10-year parts warranty requires online registration after purchase. This covers compressor, heat exchanger, and coil defects. Registration is straightforward but mandatory, so buyers must complete it promptly. The A-coil evaporator carries separate Goodman coverage. This warranty period is standard for mid-tier residential equipment and provides solid protection against premature failure.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU30,000
Heating BTU40,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)22.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Line3/8"
Suction Line3/4"
Liquid Valve Size3/8"
Max Breaker Size25 amps
Min. Breaker Size16.7 amps
Tonnage2.5 Ton
Valve TypeSweat
Height22"
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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti-Speed - ECM
Maximum CFM800
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesTwo
Fuel TypeGas
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Will this system work in very hot climates? +
The 13 SEER rating is adequate for moderate climates but ranks below 15+ SEER units preferred for high-heat regions. The single-stage compressor cannot modulate capacity for extreme cooling demand. Consider higher-efficiency models if peak temperatures regularly exceed 95°F.
Can this replace my old furnace and AC separately? +
Yes. The 40,000 BTU furnace replaces gas heating, while the 30,000 BTU air conditioner handles cooling. However, proper ductwork sizing, electrical upgrades, and refrigerant line routing require professional assessment. Mismatched components reduce system efficiency.
How much will this reduce my energy bills? +
The 96% AFUE furnace cuts heating costs 10-15% versus 80% models. The 13 SEER AC reduces cooling costs 8-12% versus 10 SEER units. Actual savings depend on climate, usage, and utility rates. A 2,000 sq ft home might save $300-600 annually.
Is 13 SEER still competitive in 2024? +
13 SEER meets ENERGY STAR standards but ranks behind 15-18 SEER variable-capacity systems. It represents good value for budget installations but underperforms premium options. Choose higher SEER if long-term energy savings outweigh upfront cost.
Does this warranty cover labor costs? +
No. The 10-year warranty covers parts only after online registration. Labor, refrigerant, and service calls are homeowner expenses. Extended labor warranties are available separately from retailers.

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