4 Ton 14 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system makes sense for homeowners replacing aging equipment who want meaningful efficiency improvements without premium pricing. The 96% AFUE furnace paired with 14 SEER cooling handles moderate climates well, though it's not ideal for extreme performance demands.

Review

Goodman's upflow gas furnace and air conditioning system represents the practical middle ground in residential HVAC. This 4-ton unit combines a 96% AFUE furnace rated at 100,000 BTU with a 48,000 BTU cooling coil delivering 14 SEER efficiency. It's designed for homes upgrading from older, lower-efficiency equipment, where the efficiency jump actually delivers measurable utility savings without the premium pricing of ultra-high-efficiency models.

Heating performance comes from a two-stage burner that modulates output based on demand, paired with an ECM multi-speed blower motor handling up to 1,600 CFM. The 96% AFUE rating means 96 cents of every heating dollar converts to home warmth, versus 80-85% on older units. Cooling uses a scroll compressor in single-stage configuration, which runs at full output but provides stable, predictable performance. The system accepts R454B refrigerant with lower environmental impact than older R-410A alternatives.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% units still in many homes
14 SEER rating qualifies for ENERGY STAR and many utility rebates, offsetting initial investment
Two-stage burner and ECM multi-speed blower allow flexible operation across varying load conditions
Lifetime heat exchanger warranty provides long-term protection against furnace's most expensive failure point
PVC exhaust flue compatible with modern code requirements and easier to install than metal venting
48,000 BTU cooling capacity matches 4-ton specification for proper system balance

Cons

Single-stage compressor means cooling operation runs at full capacity even during light load periods, reducing efficiency on mild days
74 dB noise level is acceptable but notably louder than variable-speed systems, particularly during startup
R454B refrigerant has lower global warming potential but fewer trained technicians understand handling protocols
Entry-level SEER rating means you're skipping 16-18 SEER options that offer 15-20% better cooling efficiency

Who Should Buy

Best For

Homeowners in moderate climate zones replacing 15+ year old furnaces who prioritize cost-effective efficiency gains over premium features. Contractors installing budget-friendly systems in rental properties or value-conscious residential markets will find this system reliable and straightforward.

Consider Alternatives If

Anyone in extreme climates needing maximum heating capacity, homes with noise sensitivity, or buyers seeking cutting-edge efficiency should consider variable-speed or higher SEER alternatives.

4 Ton 14 SEER 96% AFUE 100,000 BTU Goodman Gas Fur

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Installation

Installation requires standard sheet metal ductwork connections and 3/8 inch suction lines with 3/8 inch factory insulation. The upflow A-coil configuration fits most residential basements and utility rooms. PVC exhaust venting simplifies installation compared to metal flue requirements. Right-side flue location allows flexibility in equipment placement. Electrical needs are modest, requiring 115V single-phase service with 26.4 to 45 amp breaker sizing depending on final wire gauge.

Warranty & Reliability

Coverage includes lifetime protection on the heat exchanger, 10-year unit replacement warranty, and 10-year parts coverage when you register online. The heat exchanger warranty is genuinely valuable since that component typically costs 40-60% of furnace replacement. Parts coverage spans compressor, motors, and controls. Registration takes 10 minutes but unlocks the full benefit period.

Specifications

SKU	ACIQ-48-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	48,000
Heating BTU	100,000
Refrigerant	R454B
Electrical	115 V. 1 Phase 60 Hz
Warranty	Lifetime Heat Exchanger, 10 Years Unit Replacement, and 10 Years Parts with Online Registration
Decibel Level (dBA)	74
Weight (in lbs)	120.000000
Feature	Spec
Energy Star	Yes
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	34.5"
Width	21"
Depth	28.75"
Resources	GMEC96 Installation Manual GMEC96 Specifications Sheet GMEC96 Owner's Manual GMEC96 Service Manual GMEC96 Replacement Parts Manual GMEC96 Brochure Goodman Furnace 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.
Configuration	Upflow/Horizontal
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	96%
Blower Motor	Multi-Speed - ECM
Maximum CFM	1600
Flue Location	Right
Burner Stages	Two
Fuel Type	Gas
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

How much can I save on heating costs compared to my 20-year-old furnace? +

A typical 80% AFUE furnace wastes 20% of fuel; this unit wastes only 4%. That 16-point difference means roughly 16-20% heating cost savings annually, depending on climate and usage. A homeowner spending $1,200 yearly on heating could save $200-250 per year with proper installation.

Will this system work with my existing ductwork? +

Likely yes if your current system is 4-ton capacity. The upflow A-coil and 1,600 CFM maximum airflow are standard for mid-size homes. However, have a technician verify duct sizing and any leaks before installation. Restrictive ductwork prevents the blower from delivering rated airflow.

Is 14 SEER cooling efficiency worth the cost difference over basic 13 SEER units? +

The efficiency gap between 13 and 14 SEER represents roughly 7-8% better cooling performance. Annual cooling cost savings typically run $100-200 for moderate climates, depending on usage. Over 15-year lifespan, that pays for the upgrade. Higher SEER ratings cost significantly more without proportional savings for most homes.

How does single-stage cooling compare to two-stage or variable-speed compressors? +

Single-stage runs at 100% whenever cooling is needed. Variable-speed systems ramp output to match load, improving part-load efficiency on mild days. Real-world difference is 1-2 SEER points in moderate climates. Single-stage is simpler, more reliable, and less expensive to repair.

What does the lifetime heat exchanger warranty actually cover? +

Manufacturing defects in welds or materials causing leaks or cracks. It doesn't cover damage from improper installation, neglect, or corrosion from dirty filters. This warranty protects against the furnace's most expensive failure point and justifies choosing Goodman over cheaper brands.

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