Independent Review · Updated June 2026

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

High-efficiency dual-fuel system with 96% AFUE and 14 SEER for competitive heating and cooling.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3.5 Ton 14 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This ACiQ 3.5 ton system is ideal for homeowners seeking strong heating efficiency without premium pricing. The 96% AFUE furnace paired with a 14 SEER air conditioner makes it well-suited for regions with moderate to heavy heating demands.

Review

The ACiQ 3.5 ton gas furnace and air conditioner system represents a practical middle ground in the HVAC market. Built on Goodman's established platform, this upflow unit combines solid efficiency ratings with straightforward installation, making it attractive to contractors managing tight project timelines. The 96% AFUE furnace and 14 SEER condenser deliver above-average performance without the premium pricing of high-end variable-capacity systems.

Heating performance reaches 100,000 BTU output with two-stage burner modulation, while cooling delivers 42,000 BTU through a single-stage scroll compressor. The variable-speed ECM blower motor runs up to 2000 CFM and adjusts output based on demand, improving both efficiency and quiet operation. At 73 dB, the outdoor unit produces typical noise for single-stage condensers. The system operates on 115V single-phase power with a recommended 22 to 35 amp breaker, making it compatible with standard residential electrical service.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
  • 14 SEER cooling efficiency exceeds ENERGY STAR requirements and qualifies for rebates
  • Variable-speed ECM blower motor optimizes comfort and reduces energy waste at part load
  • Two-stage gas burner provides modulated heat output for quieter, more efficient operation
  • PVC exhaust flue compatibility simplifies installation in older homes and retrofit applications

Cons

  • Single-stage air conditioner compressor cannot modulate capacity, resulting in less precise temperature control than two-stage units
  • 73 dB noise level is moderately loud for residential outdoor condenser operation
  • Spec sheet lists conflicting tonnage information (3.5 tons in title but 5 tons in specs, creating confusion about actual system capacity)

Who Should Buy

Best For

Contractors installing replacement systems in homes with natural gas or propane service, and homeowners in cooler climates where heating efficiency is the priority. This system works well for upflow applications in basements or utility closets where PVC venting is feasible.

Consider Alternatives If

Homeowners seeking variable-capacity cooling or those in hot climates where AC runtime dominates should consider two-stage compressor models for better efficiency and comfort.

3.5 Ton 14 SEER 96% AFUE 100,000 BTU Goodman Gas F
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Installation

The upflow A-coil configuration suits basement and closet installations. PVC exhaust flue requirements simplify venting compared to metal ductwork alternatives. Liquid and suction lines measure 3/8 inch and 7/8 inch respectively, with 3/8 inch insulation thickness on the suction line. Installation requires proper refrigerant charging and ECM blower configuration. Most experienced HVAC contractors can complete the job within standard timeframes.

Warranty & Reliability

Coverage extends 10 years with online registration, providing solid peace of mind for defects in parts and workmanship. This aligns with industry standards for mid-tier equipment. Registration is straightforward but required to activate the full coverage, so homeowners should complete this immediately after installation to protect their investment.

Specifications

SKUACIQ-4X-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU42,000
Heating BTU100,000
RefrigerantR410A
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)120.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size35 amps
Min. Breaker Size22 amps
Tonnage5 Ton
Height30"
Width21"
Depth21"
ResourcesCAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 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 Number7368836
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypePropane, Natural Gas
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

What's the actual tonnage of this system, and why do specs show conflicting numbers? +
The product title states 3.5 tons, but the specification sheet lists 5 tons. This discrepancy is confusing and suggests either an error in the spec database or mixed components. Verify with your dealer before purchase to confirm actual cooling capacity and ensure proper sizing for your home.
Can this system work with my existing ductwork if I'm replacing an older unit? +
Yes, the upflow configuration and 2000 CFM maximum airflow work with most residential ductwork. However, have an HVAC contractor verify your duct size and static pressure. Undersized ducts may reduce efficiency and comfort, even with this capable system.
How does 14 SEER cooling efficiency compare to newer systems? +
14 SEER meets ENERGY STAR requirements and beats the federal minimum of 13 SEER. However, newer two-stage and variable-capacity units now reach 16-18 SEER. If cooling costs are your priority, investigate higher-efficiency models, though this system remains competitive for heating-focused climates.
Is the two-stage gas furnace better than single-stage for efficiency? +
Yes. Two-stage burners modulate output, reducing short cycling and fuel waste. At 96% AFUE, this furnace converts nearly all fuel to heat. Single-stage alternatives typically achieve 80-90% AFUE, making this system a clear upgrade for long-term savings.
Do I need special electrical work to install this unit? +
The 115V, 60 Hz requirement is standard residential service. Your breaker panel needs a 22 to 35 amp dedicated circuit. Most homes already have adequate service, but confirm with your electrician before purchase.

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