4 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system works best for homeowners replacing older equipment who want solid efficiency gains without paying for premium pricing. The 96% AFUE furnace and 13 SEER condenser deliver real energy savings, particularly in mixed heating and cooling climates where both components see regular use.

Review

Goodman has built its reputation on delivering honest value to the HVAC market, and this 4 ton combination system reflects that approach. Pairing an 80,000 BTU gas furnace with a 48,000 BTU cooling condenser, the SKU LS381183850 targets homeowners ready to upgrade from older equipment without premium pricing. The upflow A-coil configuration fits standard residential installations where space matters, and the 10-year warranty provides reasonable peace of mind for contractors and DIY buyers alike.

The efficiency numbers tell the real story here. The furnace delivers 96% AFUE, which is genuinely competitive for non-condensing models and will noticeably reduce heating costs compared to 80-percent equipment. On the cooling side, 13 SEER represents solid mid-range performance that qualifies for utility rebates in many regions. The multi-speed blower motor provides flexibility for balancing comfort and noise, while the reciprocating compressor has decades of field-proven reliability backing it.

Pros & Cons

Pros

96% AFUE gas furnace means heating efficiency near the top of non-condensing models, translating to lower winter utility bills
13 SEER cooling efficiency is respectable mid-range performance that qualifies for many utility rebates
Single-stage reciprocating compressor offers proven reliability with straightforward maintenance and repair history
A-coil design in upflow configuration works for homes where furnace goes in basements or attics with limited space
Multi-speed blower motor allows better temperature control and quieter operation compared to single-speed alternatives

Cons

Not Energy Star certified, meaning it misses some rebate eligibility that newer systems achieve
76 dB noise level is moderately loud for a condenser, noticeable during cooling season in quiet neighborhoods
Single-stage compressor cycles on and off rather than modulating, creating slightly less consistent comfort than variable-capacity models

Who Should Buy

Best For

Budget-conscious homeowners replacing 10-15 year old systems who want efficiency improvements without premium pricing. This system makes sense for those in climate zones where both heating and cooling demand exists and who value proven Goodman reliability.

Consider Alternatives If

Anyone seeking Energy Star certification, those living near noise-sensitive areas, or homeowners in cooling-only climates where the 96% AFUE furnace provides no benefit.

4 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furn

Buy at HVACDirect →

Installation

This upflow unit requires a 115V single-phase circuit with a 26.3-45 amp breaker range, making it compatible with standard residential electrical service. The R410A or R22 refrigerant capability offers flexibility for retrofit installations. Suction line insulation is pre-installed at 0.5 inches, and the 50-foot line set simplifies typical residential runs. Plastic flue exhaust is required, which is standard practice.

Warranty & Reliability

Goodman provides a 10-year parts warranty with online registration, which is standard industry coverage. This protects against compressor failure, coil defects, and component breakdowns but does not cover labor or damage from installation errors. Registration through Online Supply ensures warranty validity.

Specifications

SKU	LS381183850
Brand/Manufacturer	Online Supply
Cooling BTU	48,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	76
Weight (in lbs)	48.000000
Feature	Spec
Replaces	GSX130483, GSX130484, GSX130485
Energy Star	No
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	1 1/8"
Liquid Valve Size	3/8"
Max Breaker Size	45 amps
Min. Breaker Size	26.3 amps
Tonnage	5 Ton
Valve Type	Sweat
Height	34.5"
Width	21"
Depth	28.75"
Resources	Goodman Brochure Goodman Installation 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
Style	A-Coil
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	96%
Blower Motor	Multi Speed
Maximum CFM	2000
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

How does 13 SEER compare to modern standards? +

13 SEER is solid mid-range efficiency that beats older 10 SEER systems by roughly 30 percent in cooling costs. Modern premium units reach 15-18 SEER, but those command significant price premiums. For replacement applications, 13 SEER delivers tangible savings without excessive upfront cost.

Will this system qualify for tax credits or rebates? +

The lack of Energy Star certification limits federal rebate eligibility. However, local utility companies frequently offer rebates for systems meeting 13 SEER or higher, and the 96% AFUE furnace may qualify separately. Contact your utility before purchase to confirm current incentives.

Can I use this for cooling only or heating only? +

Technically yes, though it makes little economic sense. The 96% AFUE furnace wastes potential value in cooling-only climates, while the 13 SEER condenser is unnecessary in heating-only applications. Match the system to your climate for best payback.

How does 76 dB compare to other condensers? +

76 dB is moderate, roughly equivalent to heavy traffic noise. Newer variable-capacity systems run quieter at 72-74 dB. If your unit sits near a bedroom or patio, consider placement carefully or look at premium low-noise models.

What happens after the 10-year warranty expires? +

Coverage ends, and repair costs become your responsibility. Reciprocating compressors typically run 15-20 years if maintained properly. Budget for eventual replacement, but this system should deliver solid lifespan before major failures occur.

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