Independent Review · Updated June 2026

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

Solid 14 SEER cooling paired with 92% efficient gas heat for budget-conscious contractors

7.8
IndustrialRank Score
Efficiency
8.2
Reliability
7.9
Value
8.1
Installation
8.4
Warranty
7.5
2.5 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal
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// Bottom Line
This horizontal Goodman system works well for contractors installing in tight attic spaces who prioritize straightforward installation over premium efficiency ratings. The 92% AFUE heating and 14 SEER cooling deliver respectable performance without the premium price tag of higher-tier units.

Review

This 2.5-ton Goodman combination system pairs gas heating with air conditioning in a single horizontal unit designed for attic and tight mechanical spaces. Online Supply positions this as a practical replacement option for contractors managing mid-range residential HVAC upgrades. The horizontal configuration with 21-inch height, 21.125-inch width, and 26-inch depth fits standard attic drops where vertical clearance matters. Single-stage operation keeps complexity and cost down, appealing to budget-conscious installations across residential markets.

The furnace delivers 100,000 BTU heating output at 92% AFUE, meaning 92 cents of every gas dollar converts to usable heat. Cooling production hits 30,000 BTU with 14 SEER efficiency, suitable for moderate climate zones where high-tonnage cooling isn't essential. The multi-speed blower motor reaches 2000 CFM maximum airflow, supporting reasonable comfort modulation across varying outdoor temperatures. However, single-stage burner and condenser operation means the system runs at full capacity or off, missing the efficiency gains variable systems achieve during partial-load conditions.

Pros & Cons

Pros

  • 92% AFUE gas furnace exceeds minimum standards and reduces heating costs by 8-12% versus 80% AFUE models
  • 14 SEER air conditioning handles 30,000 BTU cooling with solid single-stage efficiency for moderate climates
  • 100,000 BTU heating capacity covers typical residential needs with single-stage burner simplicity
  • Horizontal configuration with 21-inch height fits standard attic drops and tight mechanical spaces
  • Multi-speed blower motor at 2000 CFM maximum allows better airflow control and comfort tuning
  • PVC/plastic exhaust flue compatibility simplifies installation in homes without masonry chimneys

Cons

  • Not Energy Star certified, missing 15-20% efficiency gains available in premium models
  • Single-stage cooling and heating limits modulation, reducing efficiency in mild weather conditions
  • 72 dB noise level runs 3-5 dB louder than variable-speed competitors during operation
  • Tonnage mismatch issue: specs list both 2.5 ton and 3.5 ton, creating confusion for contractors
  • Refrigerant compatibility with both R410A and R22 suggests this may be older stock or legacy equipment

Who Should Buy

Best For

Contractors building rental properties or budget-conscious homeowners replacing aging systems in moderate climates where 14 SEER cooling and 92% AFUE heating deliver acceptable performance. This unit works especially well for horizontal attic installations where space is limited and standard ductwork already exists.

Consider Alternatives If

Anyone in hot climates wanting maximum cooling efficiency, homeowners seeking Energy Star certification for utility rebates, or installations requiring variable-capacity compressors for superior comfort and efficiency.

2.5 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas F
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Installation

Installation requires 208/230 volt single-phase 60 Hz electrical service with breaker sizing between 17.1 and 25 amps, standard for most residential panels. The PVC/plastic exhaust flue requirement simplifies venting compared to masonry-only alternatives. Refrigerant lines use 3/8-inch liquid and 3/4-inch suction sizing with 3/4-inch insulation thickness on the suction line, requiring 50 feet maximum line length. Horizontal configuration means ductwork connects above the unit without complex framing modifications.

Warranty & Reliability

Goodman provides a 10-year parts warranty when registered online, covering compressor, heat exchanger, and coil components. This matches industry midrange standards but trails premium brands offering 10-15 years on compressors. Registration is essential, as coverage drops significantly without it. Warranty duration is reasonable for budget equipment but doesn't include labor, leaving service calls out-of-pocket after year one.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU30,000
Heating BTU100,000
RefrigerantR410A or R22
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)72
Weight (in lbs)22.000000
FeatureSpec
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 / AFUE92%
Blower MotorMulti Speed
Maximum CFM2000
ConfigurationHorizontal
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Height21"
Width21.125"
Depth26"
ResourcesCHPF Installation Manual CHPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Energy StarNo
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeRotary
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size25 amps
Min. Breaker Size17.1 amps
Tonnage3.5 Ton
Liquid Line3/8"
Suction Line3/4"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

What is the actual tonnage of this system, 2.5 or 3.5 ton? +
The product listing shows conflicting specs: title states 2.5 ton, but detailed specs list 3.5 ton tonnage. Contact Online Supply directly before purchase to confirm. The 30,000 BTU cooling output aligns with 2.5-ton capacity, suggesting the 2.5-ton designation is correct and 3.5 ton may be a data entry error.
Will this system fit in my standard horizontal attic installation? +
Yes. The unit measures 21 inches high, 21.125 inches wide, and 26 inches deep, fitting most attic drops. Horizontal configuration means ductwork connects above without requiring vertical clearance. Verify your attic opening accommodates these dimensions and confirm existing ductwork CFM capacity matches the 2000 CFM maximum blower output.
How does 14 SEER cooling compare to current efficiency standards? +
14 SEER meets federal minimum standards for new systems but trails current premium models at 16-18 SEER. In moderate climates, 14 SEER delivers acceptable cooling without the 20-30% cost premium of higher ratings. High-heat regions benefit more from 16+ SEER where runtime extends and efficiency gains accumulate faster.
Is this better than a 13 SEER system I might replace? +
Yes, the 92% AFUE furnace and 14 SEER cooling represent measurable improvements. Heating efficiency gains roughly 2-4% versus 80-90% AFUE units, reducing winter utility bills by 50-100 dollars annually depending on climate. Cooling improves by 7-8%, though actual savings depend on local tonnage needs and cooling degree days.
What warranty coverage applies if I don't register online? +
Goodman's standard limited warranty applies, but duration and coverage are reduced significantly without registration. Always register immediately after installation to activate the full 10-year warranty. Unregistered units typically receive 1-5 years coverage depending on the component.

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