4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This 4 ton system suits homeowners in moderate climates needing dependable heating and cooling without premium pricing. The 92% AFUE furnace and 14 SEER air conditioner deliver respectable energy savings, making it a practical choice for replacement installations or new builds in established neighborhoods.

Review

The Goodman 4 ton gas furnace and air conditioner system represents a pragmatic middle ground in the residential HVAC market. This upflow configuration combines a 100,000 BTU furnace with a 48,000 BTU cooling coil, making it suitable for homes averaging 1,800 to 2,200 square feet. Manufactured by Online Supply under SKU LS38783830, this system balances budget consciousness with respectable performance metrics that experienced contractors recognize as reliable workhorses.

The furnace delivers 92% AFUE efficiency through single-stage gas burner operation, while the air conditioner achieves 14 SEER cooling performance using an R410A scroll compressor. Maximum airflow reaches 1,600 CFM through the multi-speed blower motor, allowing better comfort modulation than fixed-speed alternatives. Operating at 74 dB, the system generates moderate noise typical of single-stage equipment. Electrical requirements remain modest at 115V, 1 phase, 60 Hz, with a 26.4 to 45 amp breaker range.

Pros & Cons

Pros

92% AFUE furnace efficiency exceeds federal minimum standards, reducing heating costs meaningfully
14 SEER cooling rating provides solid air conditioning efficiency for moderate climates
Multi-speed blower motor enables better temperature control and quieter operation at part load
Scroll compressor technology offers durability and quieter operation than reciprocating alternatives
10-year warranty with online registration provides substantial peace of mind protection
PVC flue compatibility simplifies venting in modern homes without masonry chimneys

Cons

Single-stage compressor and burner lack variable capacity, reducing efficiency in partial-load scenarios
74 dB noise level is moderately loud, especially during compressor operation on hot days
Not Energy Star certified, missing qualified rebates available to some homeowners
No specification clarity on minimum outdoor temperature operation or cold-weather performance

Who Should Buy

Best For

Homeowners replacing aging equipment in climate zones with moderate heating and cooling demand will appreciate the balance of efficiency and cost. Contractors valuing straightforward installation and proven Goodman parts availability often specify this system for residential retrofit projects.

Consider Alternatives If

Buyers prioritizing maximum efficiency or seeking variable-capacity technology should consider higher SEER/AFUE units, and those in extremely hot climates may want dual-stage cooling compressors.

4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Fur

Buy at HVACDirect →

Installation

This upflow system integrates readily into standard residential ductwork with A-coil configuration. The 30-inch height, 21-inch width and depth occupy typical basement or utility closet space. PVC flue compatibility eliminates expensive masonry venting modifications. Technicians appreciate the straightforward 3/8-inch liquid line and 7/8-inch suction line connections with standard 3/8-inch insulation. Installation manuals and specification sheets are available, though HVAC experience remains essential for proper field setup.

Warranty & Reliability

Online Supply provides a 10-year warranty upon online registration, covering manufacturer defects in compressor, coil, and heat exchanger components. This extended coverage exceeds many competitor offerings at this price point. Registration requirement is straightforward and typically completed online. Coverage specifics should be confirmed in the included warranty documentation before purchase.

Specifications

SKU	LS38783830
Brand/Manufacturer	Online Supply
Cooling BTU	48,000
Heating BTU	100,000
Refrigerant	R410A
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	74
Weight (in lbs)	30.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	7/8"
Max Breaker Size	45 amps
Min. Breaker Size	26.4 amps
Tonnage	5 Ton
Height	30"
Width	21"
Depth	21"
Resources	CAPT Installation Manual CAPT 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	Plastic / PVC
Furnace Efficiency / AFUE	92%
Blower Motor	Multi Speed
Maximum CFM	1600
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

What size home is this 4 ton system designed for? +

The 4 ton capacity suits homes between 1,800 and 2,200 square feet in moderate climates. Actual sizing depends on insulation, window quality, local weather extremes, and sun exposure. Always conduct a proper Manual J load calculation before purchasing to ensure correct tonnage.

Can this system be installed in attic or horizontal positions? +

While the specs list upflow/horizontal airflow direction, the A-coil configuration suggests vertical installation. Horizontal attic mounting may be possible but requires site-specific engineering review and proper drain line management. Consult Goodman's CAPT Installation Manual before attempting non-standard orientations.

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

14 SEER represents solid mid-range cooling efficiency, roughly 15% above federal minimums. Contemporary systems reach 16 to 20 SEER. This unit suits moderate climates where cooling loads don't dominate energy bills, saving you $400 to $600 annually compared to older 10 SEER equipment.

Is single-stage operation less efficient than variable-capacity systems? +

Single-stage burners and compressors run full output regardless of demand, cycling on and off to maintain temperature. Variable-capacity systems modulate output, reducing energy waste during partial loads. True efficiency gains appear in hot or cold climates with extended partial-load seasons.

What does the 10-year warranty actually cover? +

Coverage includes manufacturer defects in the compressor, heat exchanger, and coil components. Registration is required. Specific exclusions, labor limitations, and refrigerant handling should be reviewed in warranty documentation before purchase.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.