2.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman combo system works best for contractors and homeowners replacing older equipment in mild to moderate climates where 80% AFUE heating meets code requirements. At $2,789, it delivers respectable efficiency without the premium price tag of higher-tier units.

Review

The Goodman 2.5 Ton 14 SEER gas furnace and air conditioner system represents honest value in the mid-market HVAC segment. Listed at $2,789, this upflow configuration combines proven Goodman manufacturing with practical efficiency ratings that satisfy modern building codes without stretching budgets. It's pitched at both contractors stocking standard replacements and homeowners making pragmatic equipment decisions where baseline performance matters more than premium features.

Cooling capacity reaches 30,000 BTU with a 14 SEER rating, delivering solid seasonal efficiency for typical residential loads across the 2.5 to 3.5 ton range. The furnace generates 80,000 BTU heating output at 80% AFUE through a two-stage burner, which cycles between high and low fire for temperature modulation. The variable-speed blower motor handles up to 2,000 CFM, and the rotary compressor uses R410A refrigerant with properly sized 3/8 inch liquid and 3/4 inch suction lines.

Pros & Cons

Pros

14 SEER cooling rating delivers solid efficiency for mid-range AC performance, meaningful for humid climates
Two-stage burner on furnace provides better temperature control and lower operating costs versus single-stage
Variable-speed blower motor supports up to 2,000 CFM, improving airflow consistency and comfort
Metal suction and liquid lines with 3/4 inch insulation thickness reduce condensation losses
10-year warranty with online registration covers parts and labor for peace of mind

Cons

80% AFUE furnace efficiency lags modern 95%+ models, costing more to heat over system lifespan
Single-stage compressor means AC cycles on and off rather than modulating, less efficient in mild weather
72 dB noise level runs louder than high-efficiency competitors, noticeable during operation
Not Energy Star certified, missing qualification for utility rebates in many regions

Who Should Buy

Best For

Budget-conscious homeowners replacing 10-plus year old equipment who want Goodman reliability without premium pricing. Contractors stocking replacement units for standard residential applications where mid-range efficiency meets code.

Consider Alternatives If

Anyone in cold climates needing maximum heating efficiency, or buyers prioritizing quiet operation and eligibility for energy rebates should explore 95% AFUE and 16+ SEER alternatives.

2.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Fu

$2789

Buy at HVACDirect →

Installation

This upflow A-coil unit requires a metal exhaust flue and standard 120V, 60Hz single-phase power with 17.1 to 25 amp breaker capacity. Weighing 22 pounds and measuring 34.5 inches tall by 21 inches wide by 28.75 inches deep, it fits typical attic or basement installations. The 50-foot maximum suction line length provides flexible placement options, and installation follows Goodman's documented procedures with proper refrigerant charging and electrical connections.

Warranty & Reliability

Coverage includes 10 years of parts and labor protection when you register online after purchase. This warranty is straightforward without the restrictions some premium brands impose, though registration is mandatory to activate it. For most homeowners, this timeframe covers the typical system lifespan, offering reasonable protection for a mid-range unit.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	30,000
Heating BTU	80,000
Refrigerant	R410A
Electrical	120 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	72
Weight (in lbs)	22.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Rotary
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	25 amps
Min. Breaker Size	17.1 amps
Tonnage	3.5 Ton
Height	34.5"
Width	21"
Depth	28.75"
Resources	Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Technical Information Goodman User Information Goodman Warranty You will need AdobeÂ® AcrobatÂ® 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	3/4"
Style	A-Coil
AHRI Certificate Number	204633302
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Variable Speed
Maximum CFM	2000
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

How does 14 SEER cooling compare to newer 16+ SEER systems? +

14 SEER delivers roughly 12-15% lower seasonal cooling efficiency than 16-18 SEER models. Over a 15-year lifespan in hot climates, this translates to $400-600 higher electricity costs. The trade-off is immediate savings of $1,000+ on purchase price, making this unit better for buyers planning shorter ownership or moderate cooling demand.

Will 80% AFUE furnace efficiency meet building codes? +

Yes, 80% AFUE meets current International Energy Conservation Code standards in most U.S. jurisdictions. However, some cold-climate regions and certain states now require 90%+ AFUE for new installations. Check your local codes before purchasing, as requirements vary by location and retrofit versus new construction rules.

Is the two-stage burner worth the efficiency gain? +

Two-stage burners reduce heating cycle frequency by running at partial capacity during mild weather, lowering gas consumption by 10-15% versus single-stage models. This also improves comfort by reducing temperature swings. For climates with extended heating seasons, the payback occurs within 2-3 years.

What's the noise level difference compared to high-efficiency units? +

At 72 dB, this system runs noticeably louder than variable-capacity competitors operating at 65-68 dB. For perspective, that's similar to a typical dishwasher. Single-stage compressor cycling and standard blower design contribute to higher noise, which matters if the unit sits near bedrooms or living areas.

Does this system qualify for energy rebates? +

No, lacking Energy Star certification eliminates eligibility for most utility rebates and tax incentives. Many states offer $500-1,500 rebates for 16+ SEER systems. Check your utility's program, as some rebates apply to AFUE furnaces regardless of certification.

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