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

// Bottom Line

This Goodman horizontal combo unit suits budget-conscious homeowners and contractors needing straightforward replacement systems in existing horizontal configurations. It's reliable baseline equipment that won't break the bank, though efficiency lags modern standards.

Review

Goodman's 2.5 ton horizontal gas furnace and air conditioner combo represents the value-oriented end of the modern HVAC market. Designed for contractors and homeowners seeking straightforward replacements in existing horizontal installations, this unit pairs an 80% AFUE gas furnace with a matching 14 SEER air conditioner. It's Energy Star certified and carries a 10-year warranty, positioning it as a no-frills workhorse rather than a premium efficiency leader.

Performance specs show an 80,000 BTU heating output with two-stage burner operation and 80% AFUE efficiency. The cooling side delivers 29,000 BTU capacity (2.5 tons effective) with 16 SEER2 rating using a scroll compressor. Multi-speed blower reaches 2,000 CFM maximum and accepts R410A or R22 refrigerant. The 71.5 dB noise level is acceptable for standard residential applications. Electrical requirements are 208/230V single phase, 60 Hz, with 17.1 to 25 amp breaker sizing, making retrofit wiring straightforward.

Pros & Cons

Pros

Two-stage burner and multi-speed blower reduce short cycling and improve comfort during partial-load operation
Energy Star certified with 80% AFUE heating efficiency and 16 SEER2 cooling rating, meeting 2023 minimum standards
High-efficiency scroll compressor handles R410A or R22 refrigerant for stable, long-term cooling performance
Horizontal configuration fits tight attic, crawlspace, or basement installations where vertical models won't work
10-year warranty with online registration covers parts, giving contractors and homeowners reasonable protection

Cons

80% AFUE is baseline efficiency for new furnaces, meaning 20% of fuel energy is lost through exhaust
Single-stage cooling condenser limits part-load efficiency compared to two-stage or variable-capacity systems
71.5 dB noise level runs louder than premium models, noticeable during heating and cooling cycles
No smart controls, zoning capability, or advanced diagnostics included out of box

Who Should Buy

Best For

Homeowners replacing aging 70-75% AFUE systems or contractors handling straightforward residential changeouts where horizontal fitment is required. This unit delivers modest efficiency gains and reliable operation at an accessible price point.

Consider Alternatives If

Anyone prioritizing ultra-high efficiency should explore 95% AFUE condensing furnaces or heat pumps, which reduce operating costs significantly over 15+ year ownership.

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

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Installation

Horizontal orientation requires metal exhaust flue venting and ducting arranged for side-to-side airflow. Unit dimensions measure 21 inches tall by 21.125 inches wide by 26 inches deep, with 30 pound weight making single-person handling manageable. Valve connections use standard 3/8 inch liquid line and 7/8 inch suction line with 3/4 inch insulation thickness. Installation manual and specifications sheet available in PDF format. No field modifications or special tools required.

Warranty & Reliability

Ten-year parts coverage applies with online registration, protecting against compressor, motor, and heat exchanger failure. This extends beyond many budget alternatives, though it's standard for Goodman baseline equipment. Labor and refrigerant charges are excluded. Registration requirement means homeowners must complete paperwork to activate full coverage. Compare favorably against five-year limited warranties from some competitors.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	29,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	71.5
Weight (in lbs)	30.000000
Feature	Spec
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	High Efficiency Multi-Speed
Maximum CFM	2000
Configuration	Horizontal
Burner Stages	Two
Fuel Type	Gas
Height	21"
Width	21.125"
Depth	26"
Resources	CHPF Installation Manual CHPF 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.
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	3.5 Ton
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Can this horizontal unit be converted to upflow installation? +

No. The horizontal 26-inch depth and 21-inch height design physically limit repositioning. Upflow applications require a dedicated upflow cabinet model. Converting orientation may damage ducting connections and void warranty, so choose the correct airflow direction before purchasing.

What are typical installation costs for this system? +

Professional installation typically ranges 3,000 to 5,000 dollars depending on existing ductwork condition, electrical upgrades needed, and regional labor rates. Horizontal configurations cost slightly less than downflow models since they don't require additional structural supports or specialized framing modifications.

How does 80% AFUE compare to newer furnace standards? +

80% AFUE is the federal minimum efficiency standard for new gas furnaces as of 2023. Mid-efficiency units run 90-94% AFUE, condensing models reach 95-98%. Higher efficiency reduces fuel costs 15-20% annually but costs 1,500 to 2,500 dollars more upfront, requiring payback analysis.

Should I choose R410A or R22 refrigerant compatibility? +

R410A is the current standard for new equipment and recommended for new installations. R22 compatibility offers flexibility if servicing older systems. Most new installations use R410A exclusively. Verify your service provider stocks preferred refrigerant before final selection to avoid supply issues.

Does the 10-year warranty cover labor and refrigerant? +

No. Parts-only coverage means compressor, blower motor, and heat exchanger failures are covered, but technician service calls and refrigerant charges are homeowner responsibility. Plan to budget 200 to 500 dollars for service labor on covered failures.

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