3.5 Ton 13 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal Review 2026

// Bottom Line

This ACiQ 3.5-ton system works best for homeowners upgrading to a horizontal configuration in attics or crawlspaces who prioritize efficiency without premium pricing. The 96% AFUE furnace and 13 SEER cooling combine solid performance with manageable upfront costs and rebate eligibility.

Review

ACiQ's 3.5-ton horizontal system occupies a practical middle ground in the furnace and AC market. It delivers solid efficiency ratings, 96% AFUE on the heating side and 13 SEER for cooling, without commanding premium pricing. The horizontal configuration makes it ideal for retrofits in attics, basements, and crawlspaces where traditional vertical units create installation headaches. ENERGY STAR certification signals responsible engineering, and the rebate eligibility makes this option genuinely affordable for homeowners planning upgrades.

Performance metrics tell a straightforward story. The furnace generates 120,000 BTU for heating paired with 42,000 BTU cooling capacity. The variable-speed ECM blower reaches 2,000 CFM maximum and scales output intelligently. Two-stage burners reduce fuel waste during shoulder seasons. Electrical requirements stay modest at 115V single-phase, requiring just 23.9 to 40 amp breakers. Refrigerant circulates through standard 3/8-inch and 7/8-inch line sets with sweat valve connections, keeping installation straightforward for experienced HVAC technicians.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating fuel consumption and operating costs significantly
13 SEER rating with Energy Star certification meets modern efficiency standards for cooling
Variable-speed ECM blower motor adapts output to actual demand, improving comfort and lowering electric use
Two-stage burner provides flexible heating for milder days, reducing short cycling
Horizontal A-coil design fits tight spaces where vertical configurations won't work

Cons

Single-stage compressor means cooling runs at full capacity or off, lacking modulation efficiency of two-stage units
75 dB noise level is moderate, not the quietest option for noise-sensitive applications
Reciprocating compressor is standard but less efficient than scroll compressors in similar-tier systems

Who Should Buy

Best For

Homeowners with attic or crawlspace layouts needing horizontal furnace placement will appreciate the compact 30-inch length and A-coil design. Budget-conscious upgraders qualify for rebates and benefit from 96% AFUE efficiency without premium system costs.

Consider Alternatives If

Buyers seeking whisper-quiet operation or maximum cooling efficiency should consider two-stage compressor systems instead.

3.5 Ton 13 SEER 96% AFUE 120,000 BTU Goodman Gas F

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Installation

Horizontal placement demands careful ductwork coordination, but the 24.5-inch height and 26-inch depth fit most standard cavities. PVC or plastic exhaust flue requirements simplify venting compared to metal ductwork. The A-coil design positions refrigerant lines accessibly for sweat connections. Minimum 23.9 amp breaker sizing keeps electrical upgrades minimal. Professional installation remains essential to ensure proper airflow and refrigerant charge.

Warranty & Reliability

ACiQ includes a 10-year warranty when you complete online registration after purchase. This covers parts replacement and manufacturing defects, a respectable commitment for mid-tier equipment. Registration is quick and protects your investment. Coverage aligns with industry standards for non-premium brands, offering solid peace of mind without extended plans.

Specifications

SKU	ACIQ-4X-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	42,000
Heating BTU	120,000
Refrigerant	R410A
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	75
Weight (in lbs)	120.000000
Feature	Spec
Energy Star	Yes
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	7/8"
Liquid Valve Size	3/8"
Max Breaker Size	40 amps
Min. Breaker Size	23.9 amps
Tonnage	3.5 Ton
Valve Type	Sweat
Height	24.5"
Width	21.125"
Depth	26"
Resources	CHPF Installation Manual CHPF 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	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
Configuration	Horizontal
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

What does 13 SEER mean in practical dollar terms for my air conditioning costs? +

13 SEER means the system delivers 13 BTU of cooling for every watt consumed. Relative to older 10 SEER units, expect 20-30% lower summer electric bills depending on usage and local rates. The 42,000 BTU cooling capacity handles typical 3.5-ton loads efficiently, though actual savings vary by climate and duty cycles.

Can I install this horizontally in a tight attic space, or do I need a contractor? +

Professional installation is strongly recommended. The 30-foot suction line requires proper insulation thickness at 3/8 inch to prevent condensation losses. Ductwork connections, refrigerant charge verification, and electrical integration demand certified technician expertise to maintain warranty validity and system performance.

How does 96% AFUE furnace efficiency compare to older systems I might replace? +

Most furnaces installed before 2010 operate at 78-85% AFUE. This 96% model converts nearly all fuel to usable heat, reducing waste significantly. For a home burning 1,000 gallons yearly, upgrading saves approximately 100-150 gallons annually, translating to substantial cost recovery within five to seven years.

Should I choose this single-stage compressor or upgrade to a two-stage unit? +

Single-stage runs full-blast or shuts down, costing more to cycle on and off. Two-stage compressors modulate capacity, improving efficiency in mild weather. This system suits moderate climates. Hot, humid regions benefit from two-stage efficiency, though the 13 SEER rating remains respectable for single-stage operation.

Does the 10-year warranty cover parts if refrigerant leaks develop? +

Yes, manufacturing defects including refrigerant leaks fall under the 10-year parts warranty with registration. Labor and subsequent refrigerant recharges are separate costs. Accidental damage or improper installation may void coverage, so maintain documentation.

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