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 homeowners in moderate climates seeking dependable dual-fuel heating and cooling without premium pricing. Contractors favor it for straightforward residential installs where budget and reliable performance matter more than cutting-edge efficiency.

Review

Goodman's 2.5 ton system pairs straightforward engineering with accessible pricing at $2,053. This upflow configuration suits attic or basement installations common in residential retrofit work. The 14 SEER rating positions it as mid-tier cooling efficiency, adequate for moderate climates but not exceptional. Goodman's reputation for parts availability and contractor support makes this a practical choice for professionals building service relationships, rather than a premium option for homeowners chasing maximum efficiency.

Cooling delivers 30,000 BTU at 14 SEER through a rotary compressor and single-stage operation, meaning consistent performance without adaptive capacity modulation. Heating contributes 80,000 BTU across two burner stages, achieving 80% AFUE. The variable-speed blower with 2,000 CFM maximum airflow adjusts to actual demand, reducing short-cycling and wasted energy. R410A refrigerant is standard industry-wide, and 120V single-phase electrical requirements keep installation straightforward for standard residential service panels with 17.1 to 25 amp breakers.

Pros & Cons

Pros

14 SEER cooling efficiency delivers solid summer performance at 30,000 BTU capacity
Two-stage burner with 80,000 BTU heating capacity handles most residential heating loads efficiently
Variable-speed blower motor maximizes comfort and reduces energy waste during partial-load operation
Rotary compressor and single-stage design means fewer failure points and simpler maintenance
Compact A-coil design fits tight upflow installations common in attics and basements

Cons

80% AFUE trails modern condensing furnaces at 95%+ efficiency, costing more to heat over time
Single-stage cooling compressor cannot modulate output, leading to less precise temperature control than variable-capacity units
72 dB noise level runs noticeably louder than high-efficiency models, which matters in open-concept homes

Who Should Buy

Best For

Homeowners in mixed climates needing both heating and cooling who prioritize upfront savings over long-term operating costs. Contractors installing multi-unit properties or rental homes where standardized, easy-to-service equipment reduces callbacks and parts inventory.

Consider Alternatives If

Anyone in a heating-dominated climate should consider a 95%+ AFUE condensing furnace instead, and homes in hot climates would benefit from 16 SEER or higher cooling efficiency.

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

$2053

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Installation

Upflow A-coil design fits vertical installations common in attics, basements, or closets. The unit measures 34.5 inches tall, 21 inches wide, and 28.75 inches deep, so verify tight spaces beforehand. Field connections use standard 3/8 inch liquid and 3/4 inch suction line sizes. Metal flue exhaust venting is required. Most contractors complete installation in one to two days with basic ductwork modifications.

Warranty & Reliability

Goodman backs this system with 10 years parts coverage following online registration, a solid commitment matching industry standards for factory-direct equipment. The warranty covers compressor, heat exchanger, and coil defects but excludes labor and wear items. Registration is straightforward and typically unlocks the full protection within days.

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 systems on the market? +

14 SEER meets current minimum federal standards and delivers adequate cooling in moderate climates. New high-efficiency units reach 16 to 20 SEER, reducing cooling costs 15 to 30 percent annually. This unit balances reasonable efficiency with lower purchase price, favoring buyers who plan to stay 8-10 years.

Can this system handle both propane and natural gas? +

Yes, the two-stage burner supports either fuel type with minor field configuration. Confirm your gas supplier type before installation. Propane requires different orifice sizing than natural gas, so verify the unit arrives pre-set for your fuel or factor in technician setup time.

Is 80% AFUE heating efficient enough? +

80% AFUE means 20% of fuel energy vents up the flue, acceptable for mild heating climates but wasteful in cold regions. Northern homeowners should explore 95%+ condensing furnaces to recoup the higher upfront cost through lower heating bills over 15 years.

How does single-stage cooling affect comfort versus two-stage units? +

Single-stage compressors run at full capacity or off, cycling on and off to reach set temperature. Two-stage units modulate output, reducing cycling and holding temperature tighter. You may notice occasional temperature swings with single-stage, particularly during shoulder seasons.

What does the 10-year warranty actually cover after registration? +

Goodman covers parts defects including compressor, heat exchanger, and coil under the 10-year registered warranty. Labor, refrigerant, and routine maintenance are not covered. Online registration typically takes minutes and activates coverage immediately.

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