2.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow Review 2026

// Bottom Line

This Goodman system delivers reliable heating and cooling for homeowners seeking affordable equipment without sacrificing efficiency. Best suited for contractors building budget-conscious systems or homeowners replacing older 2-ton units who want modern 13 SEER performance at entry-level pricing.

Review

Goodman's 2.5-ton downflow system positions itself as the practical middle ground in residential HVAC. At $448, it undercuts many competitors while delivering respectable efficiency ratings. The 80,000 BTU furnace and 30,000 BTU cooling capacity serve small to mid-sized homes effectively. This isn't premium equipment targeting luxury builds, but rather a straightforward workhorse designed for contractors and budget-conscious homeowners who understand that reliable basics matter more than cutting-edge features.

The 96% AFUE rating puts this furnace among the best in its class, translating to measurable savings on winter heating in moderate climates. Cooling efficiency tops out at 13 SEER with a single-stage reciprocating compressor, which maintains consistent performance across seasons without the complexity of variable-speed designs. The multi-speed blower motor running up to 1,600 CFM allows reasonable comfort modulation. Power requirements stay modest at 115V single-phase 60Hz, fitting standard household circuits with 16.7 to 25-amp breakers.

Pros & Cons

Pros

96% AFUE furnace rating means excellent heating efficiency and lower winter utility bills
13 SEER cooling efficiency meets modern standards without premium pricing
80,000 BTU heating capacity handles most single-story homes and smaller multi-story builds
Multi-speed blower motor optimizes comfort across different load conditions
Single-stage reciprocating compressor proves durable in field applications
10-year warranty with online registration covers parts and labor

Cons

Single-stage compressor doesn't modulate, meaning less precise temperature control than variable-speed alternatives
73 dB noise level runs louder than high-efficiency competitors, notable during operation
Not Energy Star certified, missing potential rebate eligibility in some utility territories

Who Should Buy

Best For

Contractors building complete 2.5-ton systems for cost-conscious residential customers and homeowners replacing 15+ year old equipment who prioritize efficiency gains over premium features. This system works well for moderate climates where single-stage operation won't cycle constantly.

Consider Alternatives If

Buyers in extreme climates needing frequent on-off cycling should consider variable-speed models, and homeowners seeking Energy Star rebates won't qualify with this unit.

2.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Fu

$448

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Installation

Downflow configuration suits basements, crawlspaces, and utility closets where vertical ductwork flows downward. The 22-inch cube footprint fits most standard equipment closets. Liquid and suction line sizes run 3/8 inch and 3/4 inch respectively, with 50 feet of insulation supplied. PVC flue venting required for the furnace section simplifies installation compared to metal ductwork. Contractors should budget standard linesets and electrical work, nothing unusual here.

Warranty & Reliability

Online Supply backs this unit with a 10-year parts and labor warranty upon registration. That covers compressor, heat exchanger, and component failures, which addresses most catastrophic failures in the first decade. Registration is mandatory to activate coverage, so save your paperwork. This warranty matches entry-level Goodman coverage and provides reasonable protection for residential applications.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	30,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73
Weight (in lbs)	22.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	3/4"
Liquid Valve Size	3/8"
Max Breaker Size	25 amps
Min. Breaker Size	16.7 amps
Tonnage	2.5 Ton
Valve Type	Sweat
Height	22"
Width	21"
Depth	21"
Resources	CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil 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.
Airflow Direction	Downflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	96%
Blower Motor	Multi Speed
Maximum CFM	1600
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

What does the 13 SEER rating mean for my summer cooling costs? +

13 SEER equals 13 BTU of cooling per watt-hour consumed. Your 30,000 BTU unit pulls roughly 2,300 watts running at full capacity. Seasonal performance depends on thermostat setpoints and humidity, but expect 15-20% lower cooling bills versus 10 SEER equipment from similar-sized older systems.

Will this furnace fit in my basement corner space that measures 24 inches wide? +

Yes, the 21-inch width fits comfortably. However, account for clearance around the unit for service access and ductwork connections. Most codes require 12 inches clearance on service sides. Your 24-inch space allows one side access but might feel tight for full maintenance.

How does 96% AFUE compare to high-efficiency furnaces? +

96% AFUE is excellent. Premium models reach 97-98%, gaining marginal efficiency at significantly higher cost. At 96%, this furnace recovers nearly all fuel heat. In moderate climates, upgrading to 98% costs extra thousands for minimal annual savings, roughly one to two percent in heating costs.

Is single-stage cooling adequate, or should I upgrade to variable-speed? +

Single-stage works fine for stable climates and modest temperature swings. Variable-speed compressors excel in extreme heat or cold where units cycle frequently. For most regions, single-stage reciprocating reliability and lower cost outweigh variable-speed modulation benefits. Consider your local climate and comfort priorities.

Do I need to register online for the 10-year warranty? +

Yes, registration is mandatory. Without it, warranty defaults to manufacturer coverage only, typically one year. Online registration takes minutes and protects your investment for a full decade on parts and labor.

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