2.5 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal Review 2026

// Bottom Line

This Goodman system excels for budget-conscious homeowners replacing aging equipment in moderate climates. The 96% AFUE furnace and 16 SEER2 air conditioner deliver genuine efficiency gains, while the 2.5-ton cooling capacity handles most homes under 2,500 square feet effectively.

Review

The Goodman 2.5-ton horizontal gas furnace and air conditioner combo targets the sweet spot where efficiency meets affordability. Priced at $2,781, this system positions itself against budget brands while maintaining legitimate Energy Star certification. Goodman's long history in contractor-grade equipment lending credibility here. The horizontal A-coil configuration works seamlessly in attics and crawlspaces, expanding installation options beyond traditional upflow setups.

Performance specs reveal serious capability. The furnace delivers 80,000 BTU heating output at 96% AFUE, translating to actual cost savings on natural gas or propane. The air conditioning side produces 16 SEER2 efficiency (higher than the advertised 15 SEER), using R410A refrigerant with scroll compressor technology. The variable-speed ECM blower motor reaches 1,200 CFM maximum, adapting to ductwork demands. Two-stage burner operation prevents overshooting, maintaining comfortable temperatures with less cycling.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces winter heating costs significantly compared to 80% baseline units
16 SEER2 rating outperforms the stated 15 SEER spec, indicating better real-world cooling performance
Variable-speed ECM blower motor adjusts airflow automatically, improving comfort and reducing energy waste
Two-stage burner operation minimizes short-cycling and maintains steadier heating throughout winter months
PVC exhaust compatibility simplifies installation and reduces venting material costs
Energy Star certified with $2,781 price point makes efficiency accessible to cost-sensitive buyers

Cons

Tonnage mismatch: listed as 2.5 ton but specs show 3-ton condenser, creating compatibility uncertainty
29,000 cooling BTU doesn't align with typical 2.5-ton ratings (should be around 30,000 BTU), suggesting potential undersizing
Single-stage compressor cannot modulate capacity, less efficient than two-stage units during partial load conditions
71.5 dB noise level runs louder than variable-capacity competitors, noticeable during operation
Weight (30 lbs) seems underspecified for a 3-ton condenser, warrants vendor clarification

Who Should Buy

Best For

Contractors replacing end-of-life systems on tight budgets and homeowners in moderate climates seeking reliability over advanced features. This unit works well for 1,500 to 2,400 square foot homes where baseline efficiency meets customer expectations without premium pricing.

Consider Alternatives If

Anyone sizing for homes over 2,500 square feet or those needing quieter operation should explore variable-capacity alternatives or larger tonnage systems.

2.5 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Fu

$2781

Buy at HVACDirect →

Installation

Installation requires standard refrigerant lines (3/8 inch liquid, 7/8 inch suction with 3/4 inch insulation), electrical connection at 115V single-phase 60Hz, and PVC exhaust venting. Breaker sizing falls between 17.1 and 25 amps. The 50-foot suction line insulation length accommodates remote outdoor unit placement. AHRI certificate 7368834 confirms proper matching. Horizontal orientation requires accessible attic or crawlspace space with adequate clearance.

Warranty & Reliability

Goodman provides a solid 10-year parts warranty upon online registration. This coverage exceeds typical 5-year standards and suggests manufacturer confidence. Registration is straightforward but mandatory for the extended term. Labor warranty depends on installer, typically running 1-2 years through the contractor. Standard maintenance extends warranty life and protects your investment.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	29,000
Heating BTU	80,000
Refrigerant	R410A
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years 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	17.5"
Depth	28.75"
Resources	Goodman Brochure Goodman Install Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications 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	7/8"
Style	A-Coil
AHRI Certificate Number	7368834
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	1200
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why does the listing say 2.5 ton but specs show 3-ton components? +

This inconsistency needs clarification from the vendor. The 29,000 cooling BTU suggests 2.5-ton actual capacity, but condenser specifications reference 3-ton components. Request AHRI certificate details before purchase to confirm actual tonnage. This discrepancy affects load matching and system performance.

Can this system handle homes over 2,500 square feet? +

Possibly, but with caveats. A 2.5-ton system typically cools 2,000-2,400 square feet comfortably in moderate climates. Larger or poorly insulated homes may require extended runtime or supplemental cooling. Hot climates or superior insulation improve performance. Have an HVAC contractor perform a manual load calculation for your specific home before deciding.

How much will this system reduce my heating costs compared to older furnaces? +

An 80% AFUE furnace to 96% AFUE upgrade yields approximately 16-20% heating cost reductions for equivalent usage. Actual savings depend on fuel prices, insulation, and thermostat settings. At $2,781 installed cost, the system typically pays for itself through energy savings within 5-8 years in cold climates, faster with available rebates.

How does 16 SEER2 compare to competitor air conditioners at this price point? +

Excellent value. Most 2.5-ton units at this price tier deliver 14-15 SEER2. Goodman's 16 SEER2 rating outperforms expectations. Higher-end variable-capacity systems reach 18-20 SEER2 but cost significantly more. For budget-conscious buyers, this efficiency-to-price ratio stands out. Scroll compressors provide reliable, proven technology over newer inverter designs.

Is the 10-year warranty worth the online registration hassle? +

Yes, absolutely. Most competitors offer 5-year coverage. Extended registration takes 10 minutes and protects your investment. Keep registration confirmation and maintenance records. This warranty reflects Goodman's confidence in component reliability. Combined with a reputable installer's labor warranty, you gain solid long-term protection.

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