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

// Bottom Line

This Goodman system works best for contractors building rental properties or homeowners in mild climates where 80% AFUE heating suffices. The 14 SEER cooling efficiency and dual-stage gas burner deliver competent performance without premium pricing, though it lacks ENERGY STAR certification.

Review

Goodman's 1.5-ton system pairs an air-cooled condenser with a gas furnace in one upflow-compatible package. This combination targets the contractor and homeowner segment prioritizing affordability over cutting-edge efficiency. The 14 SEER cooling rating sits comfortably above minimum federal standards, while the 80% AFUE gas furnace delivers functional heating without condensing technology's complexity or cost. Online Supply distributes this SKU LS38343850 as an accessible entry point for new construction and replacements.

Performance specs reveal practical, if not exceptional, engineering. The condenser produces 18,000 BTU cooling capacity using R410A or R22 refrigerant through a single-stage rotary compressor. Heating reaches 80,000 BTU with two burner stages and a multi-speed blower reaching 1,200 CFM maximum airflow. The 3/8-inch liquid lines and 3/4-inch suction lines follow standard sizing. Electrical demands remain modest at 120V single-phase 60Hz with a 12 to 30-amp breaker range, simplifying installation in existing homes.

Pros & Cons

Pros

14 SEER cooling efficiency exceeds baseline standards and qualifies for many rebate programs
80,000 BTU heating output with two-stage burner adapts to varying demand, reducing short-cycling
Multi-speed blower motor allows better control over airflow distribution and temperature consistency
Two-ton tonnage mismatch provides flexibility for upflow or horizontal attic installations
10-year warranty with online registration covers both compressor and parts comprehensively

Cons

80% AFUE furnace efficiency trails modern 95%+ condensing units, costing more in heating fuel over time
No ENERGY STAR certification limits eligibility for certain utility rebates and tax incentives
Single-stage compressor delivers less precise cooling modulation compared to variable-capacity alternatives
71 dB noise level runs louder than quieter inverter-driven competitors during operation

Who Should Buy

Best For

Budget-conscious contractors installing systems in rental properties where upfront cost matters more than long-term efficiency gains. Homeowners in moderate climates seeking reliable heating and cooling without premium efficiency features.

Consider Alternatives If

Buyers in cold climates requiring maximum heating efficiency, those needing ENERGY STAR rebates, or homeowners prioritizing whisper-quiet operation.

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

Buy at HVACDirect →

Installation

Upflow installation requires minimal clearance above the coil and enough lateral space for the 17.5-inch width and 28.75-inch depth unit. The 3/4-inch suction line insulation comes pre-fitted, reducing fieldwork. Technicians need metal exhaust flue ducting for proper venting. A-coil orientation works with most existing ductwork layouts. Weighing 22 pounds, this condenser handles easier than larger two-ton models, reducing installation labor on steep roofs.

Warranty & Reliability

Goodman backs this system with a full 10-year warranty covering compressor failure and parts replacement when registered online. This duration matches industry standard offerings from major manufacturers. Registration through Goodman's portal is required to activate coverage, so buyers must complete paperwork promptly after installation. Labor costs during warranty claims may not be covered, so review specific policy terms with your installer.

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 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
Suction Line	3/4"
Style	A-Coil
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Multi-Speed
Maximum CFM	1200
Burner Stages	Two
Fuel Type	Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why does the spec sheet show 1.5 ton cooling but 3 ton tonnage listed? +

The tonnage field appears to reference the furnace section's capacity separately. The actual system delivers 1.5 tons of cooling capacity via 18,000 BTU output. Disregard conflicting tonnage specs and use the 18,000 BTU figure for sizing calculations and ductwork verification.

Can I install this in my basement or garage in any orientation? +

This upflow/horizontal A-coil design suits basements and utility closets with overhead returns. Horizontal positioning works in attics or crawl spaces. Metal exhaust flue venting is mandatory for safe gas operation. Verify adequate clearance above the unit for proper airflow and maintenance access before installation.

How does 14 SEER compare to newer high-efficiency systems? +

14 SEER meets current federal minimums but lags modern 16-18 SEER units. You'll see modestly higher cooling costs than premium alternatives, though 14 SEER remains acceptable for moderate climates. ENERGY STAR certification requires 16 SEER, so this unit misses rebate programs.

Should I choose this over a 95% AFUE condensing furnace? +

In cold climates with extended heating seasons, 95% AFUE recaptures exhaust heat, offsetting higher upfront costs through fuel savings over 15+ years. This 80% AFUE unit suits mild climates where heating loads are lighter. Calculate your annual heating degree days to compare payback periods accurately.

What does the 10-year warranty actually cover if my compressor fails? +

Goodman covers compressor replacement and parts labor under the registered warranty. Most dealers charge separately for service calls and travel time. Review your installer's warranty terms for labor coverage, as manufacturer policies typically exclude service calls beyond parts replacement.

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