Independent Review · Updated June 2026

4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Solid mid-tier efficiency for budget-conscious contractors and homeowners

7.8
IndustrialRank Score
Efficiency
8.0
Reliability
7.5
Value
8.2
Installation
8.5
Warranty
7.8
4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system delivers respectable 92% AFUE heating and 14 SEER cooling at an aggressive price point, making it ideal for homeowners replacing older systems on a budget or contractors building value packages. Skip it if you need cutting-edge efficiency or premium brand recognition.

Review

Goodman's 4 ton gas furnace and air conditioner system occupies the practical middle ground between budget basement units and premium high-efficiency equipment. This upflow configuration serves residential applications where space constraints and retrofit requirements demand compact footprints, specifically the 30 inch height fits standard utility closets. The 100,000 BTU furnace paired with 48,000 BTU cooling capacity addresses moderate residential heating and cooling loads across most climates.

The 92% AFUE furnace efficiency performs solidly, converting most fuel to usable heat while keeping draft losses minimal through PVC venting. Cooling efficiency hits 14 SEER, meeting current baseline standards without premium pricing. The multi-speed blower motor avoids the energy waste of constant full-speed operation, adjusting to part-load conditions more intelligently. A 2000 CFM maximum airflow rating accommodates the 4 ton capacity without creating ductwork bottlenecks, though 45 amp maximum breaker sizing requires adequate electrical infrastructure.

Pros & Cons

Pros

  • 92% AFUE furnace efficiency exceeds many budget alternatives by 3-5 percentage points
  • 14 SEER rating meets mid-tier efficiency standards for cooling at modest cost
  • 2000 CFM maximum airflow handles 4-5 ton applications without undersizing
  • Multi-speed blower motor reduces energy waste during partial-load conditions
  • PVC flue compatibility simplifies venting in modern homes and retrofits
  • 10-year warranty with online registration provides baseline coverage for parts

Cons

  • Single-stage burner and compressor mean less efficiency modulation versus variable-speed units
  • 74 dBA noise level runs louder than premium systems, potentially noticeable in quiet spaces
  • Not Energy Star certified despite respectable efficiency ratings
  • Scroll compressor is reliable but industry-standard, not a performance differentiator
  • 208/230V single-phase requirement limits flexibility in some commercial or 3-phase applications

Who Should Buy

Best For

Budget-conscious homeowners replacing 15-20 year old systems, and contractors building reliable entry-level packages for price-sensitive customers. Ideal for moderate climates where heating and cooling loads don't demand premium efficiency.

Consider Alternatives If

Buyers in extreme climates needing maximum efficiency, high-efficiency home retrofits prioritizing lowest operating costs, or anyone unwilling to accept single-stage compressor cycling.

4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Fur
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Installation

Installation complexity stays reasonable for licensed HVAC professionals. The upflow/horizontal configuration adapts to closet or basement placement, while PVC flue venting eliminates masonry vent concerns in many homes. Refrigerant line sizes measure 3/8 inch liquid and 7/8 inch suction, standard dimensions requiring no special fittings. Electrical demands fall within typical residential service capacity, though 208/230V single-phase availability must be confirmed before ordering.

Warranty & Reliability

Goodman backs this unit with 10 years of parts coverage when registered online, a standard warranty for this tier. Coverage includes compressor and heat exchanger defects but excludes cosmetic damage and normal wear items. Online registration is required, so skipping that step voids benefits. This warranty provides baseline protection, though does not match extended programs offered by premium brands.

Specifications

SKULS38783830
Brand/ManufacturerOnline Supply
Cooling BTU48,000
Heating BTU100,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)30.000000
FeatureSpec
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE92%
Blower MotorMulti Speed
Maximum CFM2000
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Height30"
Width21"
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.
Energy StarNo
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size45 amps
Min. Breaker Size26.4 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

How does 92% AFUE compare to modern high-efficiency furnaces? +
92% AFUE is respectable mid-tier performance, roughly 3-5 points below premium 95-98% systems. Annual heating costs run lower than 80-85% older units, but higher than condensing furnaces. For moderate climates, the savings premium doesn't always justify upgrade costs within reasonable payback periods.
Will this fit in my existing furnace closet or basement space? +
At 30 inches height, 21 inches width, and 21 inches depth, this unit fits most standard closets. Verify ceiling clearance for upflow operation and confirm space above for ductwork connections. PVC venting requires outdoor access or chimney availability, not attic routing.
Is 14 SEER cooling efficiency sufficient for my climate? +
14 SEER adequately handles moderate heating and cooling climates, meeting efficiency minimums across most regions. In extreme heat zones like Phoenix or Las Vegas, 16-18 SEER units reduce operating costs significantly. Mild climates barely notice efficiency differences in annual bills.
How does Goodman reliability stack against Lennox or Carrier? +
Goodman uses industry-standard scroll compressors and proven designs, delivering similar reliability to mid-tier competitors. Scroll compressors show lower failure rates than older reciprocating types. Goodman's advantage lies in price rather than durability innovation.
What does the 10-year warranty actually cover? +
Parts coverage includes compressor, heat exchanger, and major components when registered. Labor, refrigerant, and consumables are excluded. Registration is mandatory, so don't skip that step after installation.

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