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

// Bottom Line

This ACiQ unit is ideal for homeowners in mixed climates who need reliable heating and cooling without premium pricing. The 96% AFUE furnace and 14 SEER air conditioner deliver solid efficiency gains, making it particularly attractive for contractors installing retrofit systems in homes with existing ductwork.

Review

The Goodman/ACiQ 4-ton combination system represents a practical middle ground in the HVAC market. Delivering 100,000 BTU of heating and 48,000 BTU of cooling capacity, this upflow unit targets homeowners ready to upgrade from aging equipment without spending premium dollars on inverter technology. The Energy Star certification and availability of utility rebates improve the real-world value proposition for budget-conscious buyers.

Performance specs tell a straightforward efficiency story. The 96% AFUE rating means 96 cents of every heating dollar reaches your home, typically saving 10-15% annually versus 80% units. The 14 SEER cooling efficiency is respectable rather than exceptional, performing well during moderate weather but lacking the modulation capacity of dual-stage compressors. The variable-speed ECM motor adapts to part-load conditions, preventing the constant cycling that wastes energy in single-speed designs. Propane or natural gas compatibility adds flexibility for rural installations.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
14 SEER cooling rating qualifies for Energy Star certification and many utility rebates
Variable-speed ECM blower motor adjusts airflow from 0-2000 CFM for improved comfort and efficiency
Two-stage burner allows modulating heating output for better temperature control
Upflow/horizontal configuration fits attics and basements without requiring downflow conversion
R454B refrigerant meets current EPA standards without future phase-out concerns

Cons

Single-stage cooling compressor cannot modulate capacity like dual-stage systems, reducing efficiency on mild days
74 dB noise level is moderately loud, comparable to older units rather than quieter inverter models
Requires 26.4 to 45 amp electrical service, necessitating upgrades in older homes with 100-amp panels

Who Should Buy

Best For

Homeowners in northern states and mixed climates seeking an affordable upgrade from aging 80-90% AFUE furnaces will see rapid ROI. Contractors performing standard replacements in existing homes with adequate electrical service and ductwork will appreciate the straightforward installation and competitive pricing.

Consider Alternatives If

Buyers prioritizing whisper-quiet operation or maximum cooling efficiency on hot days should explore dual-stage systems, and those with limited electrical capacity should budget for panel upgrades before purchasing.

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

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Installation

Installation requires standard ductwork preparation, refrigerant line sizing with 3/8 inch liquid and 7/8 inch suction lines, and 3/8 inch suction line insulation. Electrical demands fall between 26.4 and 45 amps, often requiring new breaker installation. PVC exhaust flue compatibility simplifies venting. Most qualified HVAC technicians complete installation in one day on standard retrofit jobs.

Warranty & Reliability

The 10-year parts warranty requires online registration to activate. This duration matches industry averages but trails premium brands offering 12-15 years. The Goodman evaporator coil carries separate coverage. Registration is essential, as unregistered units revert to shorter manufacturer warranties. Most component failures occur within 5 years anyway.

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	10 Years 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	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.
AHRI Certificate Number	7368836
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

How does the 96% AFUE compare to my current furnace? +

If replacing an 80% furnace, you'll recover 4 percentage points of wasted heat. On a 100,000 BTU system heating a 2000 sq ft home through a cold winter, this difference saves approximately 300-400 dollars annually in heating costs, depending on fuel prices and climate zone.

Will this system fit my attic installation? +

Yes. The upflow configuration with 30-inch height, 21-inch width, and 21-inch depth fits most standard attic joists. Verify 30 inches of vertical clearance above the unit for service access. Basement installations work equally well in downflow mode.

Does single-stage cooling hurt efficiency on mild days? +

Moderately. Single-stage compressors run at full capacity or shut off, causing on-off cycling in spring and fall. Dual-stage systems modulate capacity for more efficient part-load operation. You'll see 5-10% lower cooling efficiency than comparable two-stage units on 70-75 degree days.

How does ACiQ compare to straight Goodman equipment? +

ACiQ is Goodman's streamlined efficiency brand, offering nearly identical components at lower pricing. You sacrifice some model variety and premium features but gain reliable, contractor-friendly equipment without brand markup.

Is the 10-year warranty worth the online registration hassle? +

Yes. Registration takes five minutes and activates full coverage. Without it, you drop to shorter terms. Most claims occur within 5 years anyway, so registration protects against early compressor or heat exchanger failures.

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