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

// Bottom Line

This Goodman system works well for homeowners prioritizing affordability over premium efficiency in moderate climates. At $115, it's an entry-level combo that delivers basic comfort without excessive operating costs, though higher-SEER alternatives exist if cooling demand is intense.

Review

This Online Supply-branded Goodman system is a straightforward entry-level combo unit targeting price-conscious homeowners. The 2.5-ton cooling capacity with 80,000 BTU furnace output suits homes around 1,800-2,200 square feet in moderate climates. At $115, it undercuts premium brands significantly, making it attractive for budget-conscious contractors and DIY replacements. The system supports both upflow and downflow configurations, adding flexibility for installations with space constraints.

Performance specs reveal a competent but unspectacular unit. The SEER1 16 rating, combined with Energy Star certification, means cooling efficiency sits above baseline but below high-efficiency models. The 80% AFUE furnace with two-stage burners provides acceptable heating output, though it burns roughly 15% more gas than modern 95% AFUE units annually. The scroll compressor and multi-speed blower motor are solid components, though the single-stage cooling design limits efficiency during partial-load operation common in spring and fall.

Pros & Cons

Pros

SEER1 16 rating exceeds SEER2 baseline by meaningful margin, translating to lower summer cooling costs
80% AFUE furnace with two-stage burner provides reasonable heating efficiency for budget tier
Energy Star certified, qualifying buyers for utility rebates in many regions
Scroll compressor is proven technology with solid track record in residential applications
High-efficiency multi-speed blower motor adjusts output to actual load, improving comfort and efficiency
Upflow/horizontal configuration fits tight spaces where standard equipment won't work

Cons

Single-stage cooling compressor cycles on/off rather than modulating, wasting energy during partial-load conditions
80% AFUE trails modern 95%+ furnaces by 15 percentage points, meaning higher gas bills long-term
71.5 dB noise level is noticeably louder than high-efficiency units, concerning for sound-sensitive areas
R410A refrigerant phaseout means future service costs may rise as technicians transition to R454B alternatives

Who Should Buy

Best For

Homeowners in moderate climates needing equipment replacement on tight budgets, particularly those staying in homes less than 7-10 years. Ideal for rental properties or secondary homes where payback period for premium efficiency doesn't justify higher upfront cost.

Consider Alternatives If

Anyone in hot southern climates running air conditioning heavily should invest in higher-SEER equipment, since the price difference pays back in 4-5 years. Buyers seeking ultra-quiet operation or maximum long-term efficiency should explore alternatives.

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

$115

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Installation

This system requires standard split installation with proper suction line insulation (3/4 inch thickness provided for 50-foot runs). Electrical needs are modest at 120V single-phase 60Hz with 17.1 to 25-amp breaker sizing. Metal exhaust flue piping is mandatory. Most experienced HVAC technicians complete installation in 4-6 hours. Homeowners attempting DIY should verify local permits and refrigerant certification requirements before proceeding.

Warranty & Reliability

The 10-year manufacturer warranty with online registration covers parts and labor. This is solid for budget equipment but trails some competitors offering 10-year compressor-specific coverage. Online registration is mandatory to activate full protection, so save documentation immediately after installation. Warranty covers the evaporator coil separately per included documentation, offering some additional peace of mind.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	29,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	120 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	3.5 Ton
Height	26"
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	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	High Efficiency Multi-Speed
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

How does SEER1 16 compare to modern SEER2 ratings? +

SEER1 and SEER2 use different test standards. This unit's SEER1 16 roughly equals SEER2 13-13.5, positioning it as competent but mid-tier. High-efficiency units achieve SEER2 16-18. For moderate climates, SEER1 16 delivers acceptable cooling costs without premium pricing.

Can I install this myself without professional help? +

Not recommended for most homeowners. This requires EPA Section 608 refrigerant certification, proper evacuation equipment, and electrical safety knowledge. Incorrect installation voids warranty and creates safety hazards. Budget $800-1,500 for professional installation, nearly doubling total system cost.

Will the 80% AFUE furnace significantly impact my heating bills? +

Yes, noticeably. Modern 95% AFUE furnaces waste 5% of fuel versus this unit's 20% loss. Annual gas bill increase averages 10-15% depending on climate and usage patterns. Over 15 years, the efficiency gap represents $1,500-3,000 in additional heating costs.

Is the 71.5 dB noise level a concern? +

That's moderately loud, equivalent to vacuum cleaner noise. High-efficiency units often run 65-68 dB. If your outdoor condenser unit is near bedrooms or patios, you'll notice the noise. Upgrading to variable-capacity compressors reduces this, though at higher cost.

What does the 10-year warranty actually cover? +

Parts and labor covered for manufacturing defects with online registration. Warranty excludes damage from improper installation, lack of maintenance, or refrigerant loss. Evaporator coil receives separate coverage. Keep receipts and service records to validate claims.

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