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

// Bottom Line

This 1.5 ton system works best for homeowners with modest cooling needs who prioritize affordability over cutting-edge efficiency. The 14 SEER rating and 80% AFUE deliver respectable operating costs without premium pricing, making it ideal for secondary spaces, smaller homes, or budget-first replacement projects.

Review

Goodman's 1.5 ton gas furnace and air conditioner pairing represents the practical middle ground in residential HVAC. This upflow A-coil configuration targets cost-conscious contractors and homeowners who accept mid-range efficiency ratings in exchange for straightforward installation and proven component reliability. At this price tier, you're buying predictable Goodman engineering rather than cutting-edge performance or premium comfort features.

Performance metrics tell a practical story. The 18,000 cooling BTU output (despite 1.5 ton rating) achieves 14 SEER efficiency with a rotary single-stage compressor running on R410A refrigerant. On the heating side, 80,000 BTU at 80% AFUE means roughly $0.80 of heat delivered per dollar spent on natural gas. The multi-speed blower reaches 1600 CFM maximum, allowing seasonal airflow adjustments. Operating power stays reasonable at 120V single-phase with 12 to 30 amp breaker sizing.

Pros & Cons

Pros

14 SEER rating balances efficiency with lower upfront cost, roughly 20% better than baseline 10 SEER systems
80,000 BTU heating capacity with 80% AFUE covers most moderate climate heating needs reliably
Multi-speed PSC blower motor with 1600 CFM maximum allows flexible comfort adjustments for different seasons
10-year warranty with online registration provides solid protection at this price point
Straightforward single-stage compressor and burner design means fewer complex parts to fail

Cons

No ENERGY STAR certification signals this system lags newer high-efficiency models by 3-5 SEER points
71 dB noise level runs louder than premium units, potentially noticeable during peak operation
Single-stage cooling and heating cannot modulate efficiency at partial loads, wasting energy on mild days

Who Should Buy

Best For

Homeowners upgrading from 10-12 SEER systems who want proven reliability and moderate efficiency without spending $500 more for premium equipment. This system makes sense for smaller residences, secondary HVAC zones, or contractors standardizing on value-tier Goodman equipment for price-sensitive clients.

Consider Alternatives If

Buyers in high-humidity climates seeking variable-speed technology, homeowners prioritizing whisper-quiet operation, or anyone needing ENERGY STAR compliance for rebates should explore 16+ SEER alternatives.

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

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Installation

This upflow system installs in tight spaces thanks to compact 34.5 inch height and 17.5 inch width. The 3/8 inch liquid lines and 3/4 inch suction line with standard 3/4 inch insulation thickness require typical refrigerant line handling. Metal flue exhaust requirement at the top adds standard furnace venting complexity. Most HVAC contractors complete installation within one day on straightforward replacement jobs.

Warranty & Reliability

Goodman's 10-year parts warranty activates only with online registration, adding one extra step post-installation. This extended coverage proves valuable for compressors and heat exchangers while excluding routine maintenance items. For a system at this price point, ten-year protection represents solid peace of mind compared to five-year industry standards on budget models.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	18,000
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
Weight (in lbs)	22.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Rotary
Liquid Line	3/8"
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	30 amps
Min. Breaker Size	12 amps
Tonnage	3 Ton
Height	34.5"
Width	17.5"
Depth	28.75"
Resources	Goodman Brochure Goodman Installation Manual Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information 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
Suction Line	3/4"
Style	A-Coil
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Multi Speed - PSC
Maximum CFM	1600
Flue Location	Top
Burner Stages	Single
Fuel Type	Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why does the spec sheet list both 1.5 ton and 3 ton ratings? +

The product appears to list tonnage inconsistently in source data. The 18,000 cooling BTU (dividing by 12,000 per ton) confirms approximately 1.5 tons nominal cooling capacity. The 80,000 BTU heating output is separate and does not change tonnage designation. Verify actual unit documentation before ordering to confirm exact specifications for your installation.

Is this system compatible with my existing ductwork and thermostat? +

Upflow A-coil design works with standard return plenums and supply ducts. The multi-speed PSC blower operates on conventional low-voltage thermostat signals without smart home requirements. Confirm your ductwork can handle 1600 CFM maximum airflow and that existing furnace footprint matches the 34.5 inch height, 17.5 inch width, and 28.75 inch depth dimensions.

How much money will this 14 SEER system save compared to a 10 SEER unit? +

A 14 SEER system operates roughly 40% more efficiently than 10 SEER equipment. Annual savings depend on climate and usage but typically range from $150 to $300 in cooling costs for moderate climates. Over the system's 15 to 20 year lifespan, total energy savings often justify the higher initial purchase price.

How does this single-stage system compare to variable-speed alternatives? +

Single-stage units run at full capacity until the thermostat reaches setpoint, then shut off completely. Variable-speed systems modulate continuously, saving 10-20% energy during mild weather. You sacrifice this comfort and efficiency advantage here, but gain lower installation complexity and fewer failure points, offsetting premium pricing for many buyers.

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

Goodman typically covers compressor, coil, and major component failures for 10 years. Installation labor, refrigerant, and routine maintenance are excluded. Contact Goodman customer service immediately upon unit failure to initiate warranty claims and clarify coverage specifics for your situation.

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