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

// Bottom Line

This ACiQ 4-ton combo system delivers solid efficiency with a 96% AFUE furnace and 13 SEER air conditioner, making it ideal for homeowners upgrading older equipment or contractors seeking reliable mid-range performance. The ENERGY STAR rating and two-stage burner keep utility bills reasonable without premium pricing.

Review

The ACiQ 4-ton gas furnace and air conditioner system positions itself as a practical mid-market solution for homeowners and contractors seeking ENERGY STAR certified equipment without premium pricing. This upflow configuration suits most residential installations, and the A-coil design integrates cleanly into existing return air plenums. ACiQ, backed by Goodman's manufacturing reputation, competes directly with Goodman and Amana units while often undercutting list prices in the 13-14 SEER range.

Performance specs reveal solid engineering choices. The furnace delivers 96% AFUE efficiency with two-stage burners, meaning less fuel wasted as exhaust compared to standard 90% units. Cooling output reaches 48,000 BTU at 13 SEER1 using R454B refrigerant, a climate-friendly alternative to R410A. The multi-speed ECM blower adjusts airflow from idle to 2,000 CFM, reducing short-cycling and delivering quieter operation during partial loads.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% units
13 SEER cooling with R454B refrigerant meets current EPA standards and ENERGY STAR requirements
Two-stage burner and multi-speed ECM blower motor adapt to part-load conditions, improving comfort and efficiency
120,000 BTU heating capacity with 48,000 BTU cooling matches standard 4-ton residential demand
PVC/plastic flue compatibility simplifies venting in retrofit applications where metal flues aren't available
10-year warranty with online registration provides solid coverage for parts and compressor

Cons

Single-stage compressor lacks variable capacity found in premium SEER 16+ units, limiting part-load efficiency
76 dB noise level is moderate to loud and may be noticeable in quiet neighborhoods or light-load operation
R454B refrigerant is still emerging, so technician familiarity and service costs may vary by region

Who Should Buy

Best For

Homeowners replacing 15-20 year old furnaces and AC units who want proven reliability without paying for ultra-high efficiency tiers. Contractors stocking mid-range equipment for residential retrofit jobs where ENERGY STAR compliance and balanced performance matter more than cutting-edge technology.

Consider Alternatives If

Anyone seeking single-stage heating or variable-capacity cooling for maximum part-load efficiency should consider higher SEER or modulating furnace options.

4 Ton 13 SEER 96% AFUE 120,000 BTU Goodman Gas Fur

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Installation

Installation requires competent HVAC work. The unit accepts 3/8 inch liquid lines and 1 1/8 inch suction lines with 1/2 inch insulation, standard sizes for 4-5 ton equipment. PVC or plastic flue venting simplifies exhaust routing in tight spaces. Electrical demand runs 26.3 to 45 amp breaker range on 115V, 1 phase power, typical for residential furnace blowers. Upflow mounting fits standard basement or attic return plenums.

Warranty & Reliability

ACiQ backs the unit with a 10-year parts and compressor warranty upon online registration, eliminating the paperwork burden of mailed-in cards. This duration matches industry mid-tier standards and provides confidence for residential homeowners planning 15-20 year system life. Labor and refrigerant are excluded, so service call costs remain your responsibility.

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	10 Years with Online Registration
Decibel Level (dBA)	76
Weight (in lbs)	120.000000
Feature	Spec
Replaces	GSX130483, GSX130484, GSX130485
Energy Star	Yes
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	1 1/8"
Liquid Valve Size	3/8"
Max Breaker Size	45 amps
Min. Breaker Size	26.3 amps
Tonnage	5 Ton
Valve Type	Sweat
Height	30"
Width	24.5"
Depth	21"
Resources	CAPF Installation Manual CAPF 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	96%
Blower Motor	Multi-Speed - ECM
Maximum CFM	2000
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Two
Fuel Type	Gas
Style	A-Coil
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

How does the 96% AFUE furnace compare to older 80% units in real fuel savings? +

A 96% unit wastes only 4% of fuel as exhaust versus 20% for an 80% furnace. On a $1,000 annual heating bill, you save roughly $160-200 per year. Over 15 years, that's $2,400-3,000 in fuel cost reduction, offsetting the higher equipment price.

Can I pair this with my existing ductwork from a 3.5-ton system? +

Verify static pressure and CFM capacity. The 2,000 CFM maximum output suits 4-ton systems; older ducts sized for 3.5 tons may create backpressure. Have a technician measure pressure drop. Slight restrictions are manageable, but significantly undersized ducts reduce efficiency and comfort.

What does 13 SEER1 mean compared to older SEER ratings? +

SEER1 uses updated testing that assumes hotter summer conditions than legacy SEER, making direct comparisons difficult. A 13 SEER1 unit typically performs like a 12 SEER under old standards. Real-world cooling costs remain moderate, not premium-tier low.

How does single-stage cooling affect monthly bills versus variable-capacity systems? +

Single-stage compressors run full capacity or off, cycling frequently on mild days. Variable-capacity units modulate down, reducing runtime and energy use during part-load months. Savings vary by climate, but variable systems cut cooling costs 10-15% in temperate regions.

Does online warranty registration void my coverage if I skip it? +

No. ACiQ honors the 10-year warranty regardless of registration, though registration prevents claim disputes. Register within 30 days of installation to be safest.

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