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

// Bottom Line

This system works well for homeowners in mixed climates who need reliable heating with reasonable cooling efficiency and don't want to overspend on premium equipment. The modulating burner and variable-speed blower deliver comfort and lower operating costs compared to single-stage competitors.

Review

ACiQ's 3.5 ton combined gas furnace and air conditioning system positions itself as a practical middle ground between basic single-stage equipment and premium variable-capacity units. This upflow A-coil configuration handles both heating and cooling in one package, simplifying installation for contractors replacing older split systems. The combination of 97% AFUE efficiency and 14 SEER cooling rating targets homeowners seeking measurable utility savings without premium pricing, though some specification discrepancies require attention.

The heating side delivers impressive numbers: 80,000 BTU output with a modulating burner that stages output between 40% and 100% capacity, reducing on-off cycling that wastes fuel and creates temperature swings. The cooling system operates at 42,000 BTU using a scroll compressor and R410A refrigerant at 14 SEER1 efficiency. Variable-speed ECM blower runs from 400 to 1,600 CFM depending on heating or cooling demand, substantially reducing parasitic electrical draw compared to fixed-speed motors. The 115V single-phase design means no costly three-phase rewiring.

Pros & Cons

Pros

97% AFUE furnace efficiency reduces heating fuel consumption in cold climates
Modulating burner adjusts output automatically for better comfort and lower cycling losses
Variable-speed ECM blower motor uses 15-25% less electricity than fixed-speed alternatives
14 SEER cooling rating earns Energy Star qualification at mid-market price point
Plastic exhaust flue allows cheaper venting in retrofit installations

Cons

Single-stage compressor limits part-load efficiency during mild cooling days
73 dBA noise level runs louder than two-stage or inverter-driven units
5 ton cooling capacity exceeds stated 3.5 ton rating, creating specification mismatch

Who Should Buy

Best For

Homeowners in transitional climates where heating and cooling demands are roughly balanced will appreciate the efficient 80,000 BTU furnace paired with adequate 42,000 BTU cooling. Budget-conscious contractors installing split systems in existing homes benefit from the straightforward PVC venting requirements and mid-range pricing.

Consider Alternatives If

Skip this if you live in a hot climate where air conditioning runs 8+ months yearly, since the single-stage compressor will short-cycle and waste energy compared to inverter-driven alternatives.

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

Buy at HVACDirect →

Installation

This upflow unit fits tight spaces with 30-inch height and 21-inch width and depth, accommodating most closet and attic installations. Plastic PVC exhaust venting eliminates expensive stainless steel requirements in standard vented applications. Suction lines require 3/8-inch foam insulation over 30 feet maximum run. Field technicians must confirm 22-35 amp breaker compatibility with existing electrical panels before commissioning.

Warranty & Reliability

ACiQ includes a comprehensive 10-year parts warranty when you register the unit online within 30 days of installation. This standard coverage protects compressor, coil, and heat exchanger failures but typically excludes refrigerant and labor costs. Registration is straightforward and extends coverage beyond the industry-standard 5-year baseline.

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

Why does the spec sheet list 5 ton cooling when this is marketed as a 3.5 ton system? +

The product specifications show inconsistent tonnage ratings. The cooling capacity of 42,000 BTU actually corresponds to approximately 3.5 tons (12,000 BTU per ton), but the spec table lists 5 ton under tonnage field. Always verify AHRI certificate 7424266 with the manufacturer before ordering to confirm actual cooling capacity for your load calculation.

Can I install this in a horizontal attic space or does it require vertical upflow? +

The system accepts both upflow and downflow configurations, though ACiQ advertises this specific SKU as upflow-oriented. Horizontal attic installation is possible with proper framing and return air ducting, but consult the CAPF installation manual PDF and confirm with the AHRI certificate that your application maintains proper refrigerant levels and airflow distribution.

How much will I save on heating costs compared to an 95% AFUE furnace? +

The 97% AFUE rating versus 95% AFUE saves roughly 2% annually in natural gas or propane consumption. For a $1,200 yearly heating bill, expect $24 in savings, meaning you'd need a furnace upgrade costing under $1,200 extra to break even. The modulating burner provides additional savings by reducing on-off cycling losses during partial heating loads.

How does 14 SEER compare to newer 15-16 SEER units? +

14 SEER operates at 87-88% of the efficiency of a 16 SEER unit during standardized tests. For a home requiring 5,000 cooling hours yearly, the difference amounts to roughly $30-50 annually in electricity. The trade-off favors this system if pricing is 20%+ lower than premium competitors, making payback achievable.

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

Manufacturer warranties typically transfer to subsequent owners with proof of registration and original purchase documentation, though terms vary by brand. Contact ACiQ directly or consult warranty documentation before relying on transferability for home sale negotiations. Keep all service records and registration confirmation for warranty claims.

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