Independent Review · Updated June 2026

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

Solid 92% AFUE gas furnace with 14 SEER cooling at an unbeatable price point

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
2.5 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal
Current Price
$89
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// Bottom Line
This horizontal Goodman system works best for contractors and homeowners replacing older equipment in attic or basement installations where space is tight and budget matters. At $89, it delivers respectable efficiency without premium pricing, though some specs reveal inconsistencies worth investigating before purchase.

Review

The Goodman 2.5 ton horizontal gas furnace and air conditioner system positions itself as an accessible entry point for contractors and homeowners prioritizing value over premium features. At $89, this unit targets the cost-conscious segment without promising cutting-edge technology. The horizontal configuration makes it particularly relevant for attic and basement installations where traditional vertical units won't fit. Goodman's reputation for reliability supports the product, though the spec sheet raises some questions about accuracy that warrant clarification before installation.

Performance numbers tell a practical story: 100,000 BTU heating capacity with 92% AFUE efficiency will satisfy most residential heating demands and qualify for rebates in many regions. The 30,000 BTU cooling with 14 SEER rating delivers respectable summer performance for moderate climates, though it trails premium 16-18 SEER options. The multi-speed blower motor reduces cycles and noise compared to fixed-speed designs. However, inconsistencies between the 2.5 ton and 3.5 ton tonnage ratings require factory clarification to ensure proper air handler matching and system balance.

Pros & Cons

Pros

  • 92% AFUE heating efficiency meets or exceeds most regional building codes and utility rebate thresholds
  • 14 SEER cooling rating provides solid performance for moderate climates without high-end costs
  • Horizontal configuration accommodates tight attic or crawlspace installations where vertical clearance is limited
  • Multi-speed blower motor optimizes comfort by reducing noise and cycling more efficiently than single-speed units
  • 10-year warranty with online registration provides meaningful protection for residential applications
  • PVC exhaust flue compatibility simplifies venting and reduces installation material costs

Cons

  • Tonnage specification inconsistency: listed as both 2.5 ton and 3.5 ton, creating confusion about actual cooling capacity
  • Single-stage burner and compressor limit efficiency gains in variable-load conditions compared to two-stage alternatives
  • 72 dB noise level is moderate, not ideal for noise-sensitive environments like master bedroom installations
  • Not Energy Star certified, suggesting efficiency standards fall short of top-tier equipment

Who Should Buy

Best For

Contractors handling budget-conscious residential replacements in horizontal configurations will appreciate the straightforward design and reasonable price. Homeowners in moderate climates upgrading from 1990s equipment will see meaningful efficiency gains without financial strain.

Consider Alternatives If

Skip this if you need Energy Star certification, operate in extreme climates demanding two-stage efficiency, or have space for vertical installation allowing access to more advanced options at similar price points.

2.5 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas F
$89
Buy at HVACDirect →

Installation

Installation demands standard competency for horizontal furnace placement. The unit requires 208/230V single-phase power with 17.1 to 25 amp breaker sizing. PVC exhaust flue compatibility simplifies venting compared to metal alternatives. Refrigerant lines require 3/8 inch liquid and 3/4 inch suction connections with 3/4 inch insulation thickness. The 21 by 21.125 by 26 inch dimensions fit most tight spaces, though the 22 pound weight requires proper mounting support.

Warranty & Reliability

The 10-year warranty with online registration provides solid protection for parts and labor in most cases. However, warranty terms require verification with Online Supply, as typical Goodman coverage sometimes excludes certain components or labor after year one. Registration compliance is mandatory to activate coverage, so homeowners must document purchase and registration to maintain protection.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU30,000
Heating BTU100,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)72
Weight (in lbs)22.000000
FeatureSpec
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.
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 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

Why does the spec sheet list both 2.5 ton and 3.5 ton capacity? +
This is an error requiring manufacturer clarification. The 30,000 BTU cooling capacity (listed in specs) corresponds to 2.5 ton standard rating. The 3.5 ton designation may reflect the outdoor condenser rating or represent a data entry mistake. Contact Online Supply before purchase to confirm which tonnage matches your air handler and indoor coil.
Will this fit my attic space that's 22 inches tall? +
The unit measures 21 inches in height, so it fits with minimal clearance. However, you'll need additional space for refrigerant line routing, electrical connections, and ductwork. Measure actual installation space accounting for these factors, not just the unit's footprint dimensions.
How does 92% AFUE compare to newer high-efficiency furnaces? +
At 92% AFUE, this unit exceeds many mid-tier competitors and qualifies for utility rebates in many regions. Premium equipment reaches 95-98% AFUE but costs significantly more. For moderate climates, 92% represents excellent value and meaningful savings over 80s equipment.
Is 14 SEER adequate for hot climates? +
Fourteen SEER provides reliable cooling but isn't optimal for extreme heat climates like Arizona or Texas. Those regions benefit from 16+ SEER equipment reducing runtime and peak-load strain. For moderate climates with seasonal AC use, 14 SEER performs adequately.
What does the 10-year warranty actually cover? +
Coverage typically includes parts and compressor defects with online registration. Specifics vary by retailer policy. Contact Online Supply directly to confirm exclusions, labor coverage duration, and registration requirements before installation.

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