3.5 Ton 14 SEER 98% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This ACiQ system suits homeowners in moderate climates seeking balanced efficiency without premium pricing. The 14 SEER cooling and 97% AFUE heating deliver respectable comfort for single-stage, modulating operation in most residential applications.

Review

The ACiQ 3.5-ton system represents a middle-ground choice in today's HVAC market. Branded under Goodman's value lineup, this upflow configuration pairs an 80,000 BTU furnace with a matching air conditioner coil. The combination targets homeowners wanting measurable efficiency improvements over older units without committing to premium two-stage technology. At this price point and efficiency tier, it competes directly with other mainstream split systems installers recommend for straightforward residential applications.

Heating performance reaches 97% AFUE through a modulating burner that adjusts flame intensity based on demand, reducing energy waste compared to single-stage alternatives. Cooling delivers 42,000 BTU at 14 SEER using a scroll compressor and R410A refrigerant in single-stage operation. The variable-speed ECM blower flexes between quiet standby and 1,600 CFM peak output, matching airflow to seasonal requirements. This combination won't achieve ultra-high efficiency scores, but it provides solid year-round performance for moderate climate zones.

Pros & Cons

Pros

Modulating burner reduces energy waste during partial-load heating cycles, improving comfort and lowering bills
14 SEER rating meets Energy Star standards with R410A refrigerant for consistent cooling at 42,000 BTU
Variable-speed ECM blower adjusts to seasonal demands, ranging from quiet operation to 1,600 CFM maximum
10-year parts warranty with online registration provides solid protection against manufacturing defects
PVC plastic exhaust venting simplifies installation compared to traditional metal flue systems

Cons

Single-stage condenser means compressor runs at full capacity or off, lacking two-stage efficiency modulation
73 dB noise level is moderately loud for outdoor condenser operation during cooling season
No SEER2 rating provided, making direct comparison to newer efficiency standards difficult for buyers

Who Should Buy

Best For

Homeowners replacing 10-15 year old systems who want modern efficiency gains without spending on premium two-stage equipment. Contractors installing split systems in homes with moderate heating and cooling demand will appreciate the straightforward installation and reliable Goodman backing.

Consider Alternatives If

Buyers in extreme climates demanding maximum efficiency or those prioritizing ultra-quiet operation should explore two-stage compressor models with SEER2 certification.

3.5 Ton 14 SEER 98% AFUE 80,000 BTU Goodman Gas Fu

Buy at HVACDirect →

Installation

This upflow A-coil design suits basements or utility closets with vertical ductwork. The 30-inch height and 21-inch square footprint fit standard equipment closets. Plastic PVC exhaust venting simplifies installation compared to metal flue systems. Refrigerant line sets accept standard 3/8-inch liquid and 7/8-inch suction connections. Electrical requires 115V single-phase 60Hz service with a 22 to 35 amp breaker, typical for residential installations.

Warranty & Reliability

ACiQ provides a standard 10-year parts warranty on compressor and components when registered online within 30 days of installation. This coverage protects against manufacturing defects but excludes labor and refrigerant. The warranty positions this as a no-frills but protected option. Contractors should verify registration completion with customers to ensure full coverage eligibility.

Specifications

SKU	ACIQ-4X-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	42,000
Heating BTU	80,000
Refrigerant	R410A
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73
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	35 amps
Min. Breaker Size	22 amps
Tonnage	5 Ton
Height	30"
Width	21"
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.
AHRI Certificate Number	7424266
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	97%
Blower Motor	Variable Speed - ECM
Maximum CFM	1600
Configuration	Upflow / Downflow
Burner Stages	Modulating
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

How does this system compare to high-efficiency 16 SEER models? +

The 14 SEER rating consumes approximately 12-15% more cooling energy than 16 SEER units. Over 15 years, this difference translates to $400-600 in additional electricity costs depending on regional rates. The trade-off is lower upfront equipment cost and simpler single-stage operation with fewer electronic components to fail.

What's the actual heating output of the furnace? +

The furnace produces 80,000 BTU per hour at 97% AFUE efficiency, meaning 77,600 BTU reaches living spaces while 2,400 BTU exits through the plastic vent. This capacity suits homes up to 2,500-3,000 square feet in moderate heating climates. Extreme cold regions may require supplemental heating.

Can I install this in an attic with horizontal ductwork? +

Yes. The configuration supports both upflow and downflow installation. Horizontal placement in attics requires careful condensate drainage setup. The A-coil design works for both orientations, though upflow or downflow positioning is more common for residential applications than true horizontal attic mounting.

Does modulating heat actually save energy compared to single-stage? +

Yes. Modulating burners reduce heating cycles during mild weather by running at 30-70% capacity instead of cycling fully on and off. This cuts energy waste and temperature swings, typically lowering heating bills 5-12% versus single-stage furnaces. Savings depend on climate and thermostat programming.

Is the 10-year warranty transferable if I sell my home? +

ACiQ typically limits the original owner's warranty to 10 years. Subsequent owners usually receive coverage for the remaining warranty period, but specifics vary. Check the warranty documentation for transfer terms and any registration requirements that affect coverage continuation.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.