2.5 Ton 15 SEER 96% AFUE 30,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal Review 2026

// Bottom Line

This Goodman system suits homeowners in moderate climates seeking dependable heating and cooling without premium pricing. The 96% AFUE furnace and 16 SEER2 AC unit deliver solid efficiency gains, while the two-stage burner and scroll compressor provide reliable operation for 15+ years with proper maintenance.

Review

The Goodman 2.5 Ton horizontal gas furnace and air conditioner system represents a practical middle-ground offering for homeowners seeking reliable climate control without the premium pricing of variable-capacity equipment. This Goodman unit combines a 30,000 BTU, 96% AFUE furnace with a 29,000 BTU, 16 SEER2 air conditioner in a compact footprint sized for attic or closet installation. The horizontal A-coil configuration suits tight spaces, and Energy Star certification reflects genuine efficiency improvements over baseline models.

Performance data shows meaningful efficiency gains across both heating and cooling. The furnace's 96% AFUE rating converts nearly all fuel to usable heat, while the 16 SEER2 air conditioner exceeds typical 2.5-ton efficiency by 2 to 3 points. Two-stage burner operation reduces short-cycling and fuel waste during mild weather, and the scroll compressor handles scroll-to-scroll compression reliably. The multi-speed ECM blower motor adjusts from quiet standby to full 1200 CFM output, improving comfort and reducing energy waste.

Pros & Cons

Pros

96% AFUE furnace rating meets high efficiency standards and qualifies for Energy Star certification
16 SEER2 cooling efficiency exceeds the 2.5-ton class average by 2-3 points
Two-stage burner reduces fuel waste and cycling during mild weather
Multi-speed ECM blower motor fine-tunes airflow from 0 to 1200 CFM
Lifetime heat exchanger warranty provides exceptional protection against furnace failure
Compact horizontal A-coil design fits tight attic or crawlspace installations

Cons

Single-stage AC compressor cannot modulate capacity, reducing part-load efficiency compared to two-stage units
71.5 dB noise level runs louder than premium variable-capacity models during peak cooling
R410A and R22 refrigerant compatibility complicates servicing if technician stocks only one type

Who Should Buy

Best For

Homeowners replacing aging furnace-AC systems in homes with good insulation and moderate heating/cooling demands benefit from this unit's balance of efficiency and cost. Contractors installing systems in rental properties or budget-conscious customers value the straightforward two-stage design and Goodman's service-friendly components.

Consider Alternatives If

Skip this model if you live in extreme cold climates where two-stage heating cannot match three-stage performance, or if noise sensitivity is high during summer cooling season.

2.5 Ton 15 SEER 96% AFUE 30,000 BTU Goodman Gas Fu

Buy at HVACDirect →

Installation

This horizontal unit requires standard gas, electrical, and refrigerant connections. The 115V, single-phase 60 Hz requirement fits any residential breaker panel with 17.1 to 25 amp capacity. PVC exhaust flue vents directly out the right side. The 50-foot suction line with 3/4-inch insulation accommodates moderate distance runs between condenser and furnace without efficiency loss. Horizontal A-coil orientation demands careful ductwork sealing to prevent leaks.

Warranty & Reliability

Goodman backs the heat exchanger for life, protecting against the costliest potential failure. Unit replacement coverage extends 10 years from installation, and parts carry 10-year protection with online registration. Registration is mandatory to unlock the full warranty benefit, so document your purchase receipt and serial number immediately. This warranty ranks well against budget brands but trails premium manufacturers offering 12 to 15-year parts coverage.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	29,000
Heating BTU	30,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	Lifetime Heat Exchanger, 10 Years Unit Replacement, and 10 Years Parts with Online Registration
Decibel Level (dBA)	71.5
Weight (in lbs)	30.000000
Feature	Spec
Energy Star	Yes
SEER1 (Efficiency)	16
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	7/8"
Max Breaker Size	25 amps
Min. Breaker Size	17.1 amps
Tonnage	3 Ton
Height	34.5"
Width	14"
Depth	28.75"
Resources	GMEC96 Installation Manual GMEC96 Specifications Sheet GMEC96 Owner's Manual GMEC96 Service Manual GMEC96 Replacement Parts Manual GMEC96 Brochure Goodman Furnace Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	PROPOSITION 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.
Configuration	Upflow/Horizontal
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	96%
Blower Motor	Multi-Speed - ECM
Maximum CFM	1200
Flue Location	Right
Burner Stages	Two
Fuel Type	Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

What does the 16 SEER2 rating mean for my electricity bills? +

SEER2 measures cooling efficiency under realistic conditions. A 16 SEER2 unit uses roughly 15% to 20% less electricity than a 13 SEER baseline model. Your exact savings depend on climate, home insulation, thermostat settings, and local electricity rates, but expect $200 to $400 annual reduction in moderate climates.

Can I install this horizontal unit in an upflow attic configuration? +

Yes. The specs list Upflow/Horizontal configuration, meaning ducting flexibility accommodates both attic horizontal and upflow closet mounting. Verify your installer positions the A-coil and burner to prevent condensation pooling and ensure proper airflow direction through your existing ductwork.

Why is the AC unit single-stage when the furnace is two-stage? +

Cost optimization. Single-stage compressors cost less to manufacture than two-stage units but run at full capacity whenever cooling is needed. Two-stage compressors would improve part-load efficiency on mild days, but would raise the system price by $1,500 to $2,000.

How does this Goodman compare to equivalent Lennox or Carrier units? +

The Goodman delivers similar 96% AFUE furnace and 16 SEER2 AC ratings at lower cost. Lennox and Carrier equivalents often cost $1,000 to $2,000 more but add variable-capacity compressors or enhanced controls. Goodman competes on reliability and value, not premium features.

Do I have to register online to get the full warranty? +

Yes. Without registration, your parts and unit replacement warranty drops to 5 years. Register within 60 days of installation on Goodman's website using your serial number and proof of purchase to activate the full 10-year coverage.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.