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

// Bottom Line

This ACiQ combo system excels for contractors and homeowners needing a reliable, efficient heating and cooling solution at a competitive $3,136 price point. The 96% AFUE furnace and 13 SEER condenser make it suitable for moderate climates where balanced heating and cooling demands exist.

Review

The ACiQ 4-ton combo system represents a practical middle-ground solution for HVAC replacement projects. Combining a 120,000 BTU furnace with a 48,000 BTU cooling condenser, this downflow configuration addresses both seasonal demands in one integrated package. At $3,136, it positions itself as accessible to budget-conscious contractors and homeowners without sacrificing proven component quality or efficiency ratings that qualify for Energy Star designation.

Performance specifications show solid engineering. The 96% AFUE rating means 96 cents of every heating dollar converts to usable heat, a substantial improvement over legacy 80% AFUE units. The 13 SEER cooling efficiency rating paired with a variable-speed ECM blower motor allows the system to modulate output based on demand, reducing short cycling and energy waste. The two-stage burner enhances comfort by operating at lower capacity during mild weather, extending runtime without temperature swings. Dual-fuel capability accommodates either natural gas or propane, a practical advantage for retrofit situations.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating costs significantly compared to older 80% AFUE units
13 SEER rating qualifies for Energy Star certification and utility rebates in many regions
Dual-fuel capability supports both natural gas and propane, offering flexibility for different installations
Two-stage burner and variable-speed ECM blower optimize comfort and reduce runtime cycles
Compact 30-inch height fits tight spaces, downflow configuration suits basement and attic installations
10-year parts warranty with online registration provides solid consumer protection

Cons

Single-stage compressor limits efficiency gains compared to dual-stage alternatives in mild weather months
76 dB noise level is moderately loud for condenser operation, noticeable in quiet residential areas
R454B refrigerant requires trained technicians familiar with newer low-GWP refrigerants for service calls

Who Should Buy

Best For

Contractors installing complete HVAC systems in homes where space is limited and homeowners seeking reliable mid-range efficiency without premium pricing. This system works well for climates experiencing both significant heating and cooling seasons, where the 96% AFUE and 13 SEER balance makes economic sense.

Consider Alternatives If

Buyers in extremely hot climates should consider higher SEER ratings, and those in primarily heating-focused regions may find a furnace-only solution more cost-effective.

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

$3136

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Installation

Installation requires standard line-set connections using 3/8-inch liquid and 1 1/8-inch suction lines, both available in 50-foot lengths. The downflow A-coil configuration fits tight spaces with its 30-inch height. Electrical requirements demand 115V single-phase 60Hz service with breakers between 26.3 and 45 amps. PVC or plastic exhaust flue venting is required. Most experienced HVAC contractors complete installation within one day.

Warranty & Reliability

ACiQ provides a 10-year parts warranty conditional on online registration at time of purchase. This coverage protects against compressor failure, refrigerant leaks, and component defects. The warranty does not cover labor or refrigerant itself. Online registration is straightforward and typically takes five minutes, making warranty activation accessible for most buyers.

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	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	7368845
Airflow Direction	Downflow/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
Style	A-Coil
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

What does 13 SEER mean for my cooling costs? +

SEER 13 indicates the system removes 13 BTU of heat per watt-hour of electricity consumed under standard conditions. Compared to older 10 SEER units, you'll see roughly 20-25% lower summer cooling bills. The variable-speed blower amplifies savings by avoiding full-capacity runtime during mild days.

Can I install this in my basement if space is tight? +

Yes. The 30-inch height fits most basement ceiling clearances. The downflow configuration directs air horizontally toward ductwork. Verify that your furnace pad accommodates the 24.5-inch width and 21-inch depth before purchasing. Call an installer to assess your specific layout.

How much more efficient is 96% AFUE than my 1995 furnace? +

Systems from the 1990s typically operated at 78-82% AFUE. A 96% AFUE unit cuts heating fuel consumption by roughly 15-18%. On a $1,200 annual heating bill, expect $180-216 in annual savings, recovering the equipment cost within 14-17 years before considering labor and installation.

Should I upgrade to a higher SEER condenser instead? +

At 13 SEER, this unit balances cost and cooling efficiency effectively. Moving to 16 SEER costs $1,500-2,000 more and adds 2-3 years to payback through electricity savings. Choose 16+ SEER if you live in hot climates with six-month cooling seasons. This 13 SEER unit suits moderate climates adequately.

What happens after the 10-year warranty expires? +

Parts become customer responsibility after year 10. Many components last 15-20 years with proper maintenance. Service calls cost $150-300 for diagnostics plus repair expenses. Extended warranties are sometimes available at purchase, so ask your installer about that option upfront.

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