4 Ton 14.5 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal Review 2026

// Bottom Line

This ACiQ 4-ton system is built for contractors seeking a balanced combination of heating and cooling efficiency without premium pricing. The 96% AFUE furnace and 14 SEER1 air conditioner make sense for moderate climates where both heating and cooling run regularly throughout the year.

Review

The ACiQ 4-ton horizontal system represents a pragmatic choice for contractors balancing cost and performance. This Goodman-based combo delivers solid efficiency across both heating and cooling modes, with a 96% AFUE furnace paired to a 14 SEER1 air conditioner. The unit fits standard attic or crawl space installations and comes backed by straightforward documentation and a proven manufacturer network.

Performance specs tell a practical story: the furnace produces 120,000 BTU with a two-stage burner, while the condenser handles 48,000 cooling BTU in single-stage operation. The variable-speed ECM blower moves up to 2,000 CFM, adapting to heating and cooling loads throughout the day. Electrical requirements are reasonable at 115V single-phase with a 26.4 to 45-amp breaker range, making this compatible with most residential panels.

Pros & Cons

Pros

96% AFUE furnace efficiency significantly reduces heating fuel costs compared to 80-90% models
14 SEER1 cooling efficiency qualifies for Energy Star certification and most utility rebates
Variable-speed ECM blower motor adjusts airflow based on demand, improving comfort and efficiency
Two-stage burner on furnace provides better temperature control and reduces short-cycling
Lifetime heat exchanger warranty offers strong protection on the most expensive component

Cons

Single-stage compressor on cooling side limits efficiency gains in extremely hot weather
74 dB noise level is slightly louder than some competitor models at full capacity
R454B refrigerant still requires technician certification, limiting DIY service options

Who Should Buy

Best For

HVAC contractors and homeowners in transitional climates where heating and cooling needs are both significant should seriously consider this system. The high furnace efficiency combined with solid air conditioning performance delivers year-round savings without the premium price tag of variable-capacity units.

Consider Alternatives If

Buyers in heating-dominant climates should look at furnace-only solutions, while those in hot climates may want to invest in a two-stage compressor for superior cooling efficiency.

4 Ton 14.5 SEER 96% AFUE 120,000 BTU Goodman Gas F

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Installation

Installation follows standard horizontal configuration with A-coil design for upflow applications. Requires 3/8-inch liquid line and 7/8-inch suction line, both standard sizes stocked by most distributors. PVC exhaust flue requirement simplifies venting compared to metal alternatives. Most experienced technicians complete install in a single day without special tools.

Warranty & Reliability

The lifetime heat exchanger warranty provides genuine peace of mind on the component most likely to fail after 15 years of service. Ten years parts coverage with online registration covers compressor, blower motor, and control boards. Registration is straightforward but mandatory to activate the full warranty period.

Specifications

SKU	ACIQ-48-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	48,000
Heating BTU	120,000
Refrigerant	R454B
Electrical	115 V. 1 Phase 60 Hz
Warranty	Lifetime Heat Exchanger 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	24.5"
Depth	28.75"
Resources	Goodman Brochure Goodman Install Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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
AHRI Certificate Number	7368842
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
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

How does 14 SEER1 compare to older 10 SEER systems? +

The 14 SEER1 rating means roughly 40% better cooling efficiency than decade-old 10 SEER models. On a 3-ton system running 1,500 cooling hours annually, this translates to approximately 2.5 extra tons of CO2 avoided and measurable electric bill reduction in most climates.

Can this system work in an existing installation with different line sizes? +

The 3/8-inch liquid and 7/8-inch suction lines are standard sizing, but existing installations with different line diameters require adapter fittings or new linesets. Have a technician verify your existing copper lines before ordering to avoid last-minute surprises.

Is the two-stage furnace burner worth the extra cost? +

Yes. Two-stage burners cycle at low fire most of the season, reducing short-cycling and extending component life. You'll notice improved temperature consistency and lower gas bills compared to single-stage alternatives, typically offsetting the upfront premium within 3-4 years.

How does the single-stage compressor affect performance in hot climates? +

Single-stage compressors run full-capacity continuously on hot days, consuming more electricity than two-stage models. In 95+ degree climates, this limits efficiency gains. For areas with regular 90+ degree days, consider upgrading to a two-stage condenser for better performance.

What does the lifetime heat exchanger warranty actually cover? +

Manufacturer defects causing leaks or cracks are covered indefinitely after online registration. Normal wear, improper installation, or corrosion from neglected maintenance are excluded. This is genuine protection compared to many 5-year limitations on this component.

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