Goodman 3.5 Ton 14 SEER 80% 100,000 BTU Furnace & AC System - R410A Upflow Review 2026

// Bottom Line

This ACiQ system excels for homeowners in northern regions who prioritize heating output and want respectable cooling efficiency without premium pricing. The 100,000 BTU furnace with 80% AFUE and 14 SEER cooling make it practical for mixed climates where heating demands are substantial.

Review

The Goodman 3.5 Ton 14 SEER system (branded as ACiQ) positions itself as a practical middle-ground offering for residential HVAC replacement. This unit combines an 80% AFUE gas furnace with 100,000 BTU heating capacity alongside a 14 SEER air conditioner. It's targeted at contractors serving mixed-climate regions where both heating and cooling matter, and homeowners unwilling to invest in premium variable-capacity equipment.

Performance specifications reveal a heating-focused design. The furnace delivers 100,000 BTU with two-stage burners, while cooling output reaches 41,000 BTU across the 3.5 ton capacity. The 14 SEER rating indicates moderate cooling efficiency, acceptable for Energy Star qualification but trailing newer 16-18 SEER models. Multi-speed blower with 2,000 CFM maximum airflow allows temperature staging, reducing comfort swings compared to single-speed alternatives. The scroll compressor uses R410A refrigerant in a single-stage configuration.

Pros & Cons

Pros

Strong 100,000 BTU heating capacity, ideal for homes in HVAC zones 4-5 requiring aggressive winter performance
14 SEER cooling efficiency meets Energy Star standards with reasonable operating costs
Multi-speed blower motor enables better temperature control and reduced short-cycling
Two-stage burner operation improves comfort by modulating heat output rather than full on/off cycling
10-year warranty with online registration provides solid peace of mind coverage
Lightweight 120 lb design simplifies installation compared to heavier competing units

Cons

80% AFUE is dated by modern standards, newer condensing furnaces reach 95%+ efficiency
Single-stage cooling compressor cannot modulate capacity, running at full power until target temperature is reached
74 dB noise level is moderately loud for residential use during compressor operation

Who Should Buy

Best For

Contractors and homeowners in colder climates (northern US, mountain regions) who need robust heating output and are upgrading from older equipment. Budget-conscious buyers who want efficient cooling without paying for premium variable-capacity features.

Consider Alternatives If

Anyone in southern climates where cooling dominates, those prioritizing lowest possible utility bills, or homeowners wanting whisper-quiet operation should consider higher-SEER variable-capacity systems.

Goodman 3.5 Ton 14 SEER 80% 100,000 BTU Furnace &

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Installation

Installation requires 120V single-phase 60 Hz power with 24-40 amp breaker sizing. The A-coil design fits upflow and downflow configurations, supporting flexible ductwork layouts. Suction line insulation (1/2 inch thickness) arrives pre-installed. Metal exhaust flue is mandatory. Field technicians appreciate the 50-foot liquid/suction line set, reducing jobsite fabrication needs. Compact 21x21x30 inch dimensions fit most mechanical closets.

Warranty & Reliability

The 10-year parts and labor warranty requires online registration to activate. This duration is competitive among mid-tier manufacturers, covering compressor failure, heat exchanger cracks, and component defects. Coverage excludes maintenance neglect, improper installation, and refrigerant recharges. Registration is straightforward and extends protection beyond industry standard.

Specifications

SKU	ACIQ-4X-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	41,000
Heating BTU	100,000
Refrigerant	R410A
Electrical	120 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	74
Weight (in lbs)	120.000000
Feature	Spec
Product Features	Rebate Available
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	40 amps
Min. Breaker Size	24 amps
Tonnage	5 Ton
Valve Type	Sweat
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.
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Multi-Speed
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Gas
Liquid Line	3/8"
Suction Line	1 1/8"
Style	A-Coil
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

How does 14 SEER compare to modern air conditioning systems? +

14 SEER meets Energy Star minimums but trails current offerings (16-20 SEER). A 14 SEER unit costs 15-25% less than 16 SEER equivalents while consuming approximately 12-15% more electricity annually. For moderate climates, this trade-off works financially if electric rates are low.

What makes this furnace suitable for cold climates? +

The 100,000 BTU output and two-stage burner design deliver aggressive heating without excessive cycling. Northern homes needing rapid temperature recovery during extreme cold benefit significantly. Compare this to 60,000 BTU systems requiring constant runtime in subzero conditions.

Is the 80% AFUE furnace efficient enough? +

80% AFUE is functional but dated. Modern condensing furnaces reach 95% AFUE, saving 15-20% on heating costs over the unit's lifespan. Choose 80% AFUE only if budget constraints prevent higher efficiency upgrades or if your existing ductwork is poorly insulated.

Does single-stage cooling create comfort issues? +

Single-stage compressors run at full capacity until setpoint is reached, then stop entirely. This causes temperature swings in mild weather and higher electricity spikes. Two-stage or variable systems modulate output for steadier comfort, though this unit's multi-speed blower partially compensates.

What does the 10-year warranty actually cover? +

Parts and labor defects including compressor, heat exchanger, and electronics. Routine maintenance, refrigerant loss, and installation errors are excluded. Registration is required within 30 days of activation to validate coverage.

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