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

// Bottom Line

This ACiQ-badged unit offers respectable mid-tier efficiency for contractors working on budget-conscious residential replacements where both heating and cooling matter equally. Best suited for climates with moderate cooling demands and existing gas furnaces that need updating.

Review

The ACiQ 3.5-ton system represents a practical entry point into modern split HVAC packages. Built on Goodman's manufacturing platform, this unit delivers adequate performance for contractors balancing budget constraints with customer expectations. At 14 SEER and Energy Star certified, it avoids bottom-tier ratings while keeping installation costs manageable. The 80% AFUE furnace and R410A refrigerant reflect current standard specifications rather than cutting-edge technology.

Performance metrics show realistic middle-ground capability. The furnace produces 42,000 heating BTU from its single-stage burner, while the air conditioner delivers 41,000 cooling BTU at 14 SEER efficiency. Airflow reaches 2,000 CFM maximum through a multi-speed PSC blower, sufficient for typical residential ductwork. Operating at 74 dB keeps noise acceptable for most applications. Electrical requirements span 208/230V single phase at 24-40 amp breaker range, fitting standard residential service panels.

Pros & Cons

Pros

14 SEER rating qualifies for Energy Star, delivering solid cooling efficiency without premium pricing
80% AFUE furnace handles 42,000 heating BTU from single-stage burner, adequate for moderate heating zones
5-ton capacity with 41,000 cooling BTU matches well-sized installations in 2,000-2,500 sq ft homes
Multi-speed PSC blower motor provides flexibility for ductwork optimization and comfort tuning
10-year warranty with online registration covers both heating and cooling components

Cons

80% AFUE falls below high-efficiency thresholds, newer units reach 95%+ AFUE for better long-term savings
Single-stage compressor and burner lack modulation found in higher-tier models, reducing part-load efficiency
74 dB decibel level audible during operation, may concern noise-sensitive homeowners

Who Should Buy

Best For

Contractors managing equipment costs for standard residential replacements, and homeowners seeking balanced heating/cooling performance without stepping up to premium efficiency tiers. Ideal for moderate climates where furnace runtime isn't excessive.

Consider Alternatives If

Homeowners in cold climates prioritizing heating efficiency or those seeking quieter operation should explore higher AFUE units and two-stage designs.

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

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Installation

This upflow configuration suits attic or utility closet installations with top-mounted flue venting. The unit's 30 by 21 by 21 inch footprint fits standard framing cavities, and 120-pound weight simplifies positioning. Valve sizes of 3/8 inch liquid and 7/8 inch suction lines pair with 50-foot precharged linesets. Metal exhaust flue is mandatory. Sweat connections require soldering skill, making professional installation advisable.

Warranty & Reliability

The 10-year parts warranty activates upon online registration and covers both furnace and evaporator coil. This extended term protects against major component failures, though it requires proof of registration. Labor costs aren't covered, so budget separately for service calls during the warranty period.

Specifications

SKU	ACIQ-4X-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	41,000
Heating BTU	42,000
Refrigerant	R410A
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	74
Weight (in lbs)	120.000000
Feature	Spec
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Multi Speed - PSC
Maximum CFM	2000
Configuration	Upflow / Downflow
Flue Location	Top
Burner Stages	Single
Fuel Type	Gas
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.
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
Liquid Line	3/8"
Suction Line	1 1/8"
Style	A-Coil
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

What's the actual cooling output, and how does 14 SEER compare to newer standards? +

The unit delivers 41,000 cooling BTU at 14 SEER rating. Current standards recognize SEER2 instead of SEER1, making direct comparisons tricky. Roughly, 14 SEER1 equals approximately 11 SEER2. For reference, modern units hit 16-18 SEER2, so this unit falls into solid mid-tier territory without premium pricing.

Will this fit in my existing furnace space, and what ductwork modifications are needed? +

Dimensions of 30H x 21W x 21D inches match most standard upflow cabinets. The 2,000 CFM maximum airflow works with 16-20 inch diameter trunk lines in typical homes. Have a technician review your existing ductwork, as restrictive ducts reduce efficiency below rated specs.

How does 80% AFUE heating efficiency impact my winter utility bills? +

At 80% AFUE, 20% of heating energy vents as waste heat. High-efficiency models at 95% AFUE reduce that waste significantly. In cold climates with long heating seasons, the efficiency gap translates to measurable annual savings, potentially $200-400 depending on gas rates and climate zone.

How does this ACiQ unit compare to Goodman's own branded systems? +

ACiQ is Goodman's efficiency-focused sub-brand, using identical manufacturing and components. The main difference is pricing, with ACiQ units costing less while delivering the same performance. Both carry identical warranties and engineering specifications.

Is the 10-year warranty really valuable, and what does it actually cover? +

The 10-year term covers parts failures on compressor, furnace heat exchanger, and evaporator coil. Labor is not included. Registration is mandatory, so complete it immediately after installation. This warranty beats industry-standard five-year coverage significantly.

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