Independent Review · Updated June 2026

3 Ton 14 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow

Exceptional 97% AFUE furnace paired with 14 SEER cooling at an unbeatable price point.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 14 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow
Current Price
$647
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This system excels for homeowners seeking high-efficiency heating and cooling without premium pricing. The 97% AFUE furnace delivers exceptional heating efficiency, while the 14 SEER air conditioner handles moderate cooling demands effectively. At $647, this represents genuine value for contractors building customer systems or budget-conscious homeowners upgrading from older equipment.

Review

The Goodman ACiQ 3.5 ton system represents a pragmatic middle ground in residential HVAC. This downflow configuration pairs a high-efficiency gas furnace with an air conditioner condenser, delivering heating and cooling through a single installation footprint. The product targets cost-conscious homeowners and contractors seeking reliable performance without luxury features or premium pricing that pushes systems into five-figure territory.

Performance metrics reveal genuine efficiency credentials. The furnace achieves 97% AFUE, meaning 97 cents of every heating dollar converts to home warmth, with modulating burner stages and variable-speed ECM blower fine-tuning comfort across operating ranges. The 3.5 ton air conditioner delivers 36,000 BTU cooling capacity at 14 SEER1 efficiency, supporting Energy Star qualification. Heating output reaches 100,000 BTU, adequate for homes up to approximately 2,500 square feet in moderate climates.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
  • 14 SEER cooling efficiency qualifies for Energy Star certification and utility rebates
  • Modulating burner stages and variable-speed ECM blower optimize part-load performance
  • 3.5 ton capacity with 100,000 BTU heating and 36,000 BTU cooling handles most residential applications
  • PVC exhaust flue compatibility simplifies installation in modern homes
  • 10-year warranty with online registration provides solid peace-of-mind coverage

Cons

  • Single-stage compressor lacks the efficiency gains of two-stage or variable-speed cooling
  • 73 dB noise level runs moderately loud, potentially noticeable during operation
  • R454B refrigerant requires technician familiarity, limiting some service shops

Who Should Buy

Best For

This system suits homeowners in moderate climates replacing 15+ year old equipment, or contractors bundling efficient components for cost-conscious customers. It balances superior heating efficiency with capable cooling performance without stretching budgets.

Consider Alternatives If

Skip this if you live in hot climates requiring extensive cooling, prioritize ultra-quiet operation, or need two-stage compressor efficiency for maximum summer savings.

3 Ton 14 SEER 97% AFUE 100,000 BTU Goodman Gas Fur
$647
Buy at HVACDirect →

Installation

Installation complexity rates moderate. The downflow configuration requires vertical clearance of 30 inches height and 21-inch square footprint, fitting standard closet spaces. Refrigerant lines use 3/8-inch liquid and 3/4-inch suction piping with matching valve sizes. Electrical demand stays accessible, requiring 115V single-phase 60Hz service with 18.7 to 30-amp breaker sizing. PVC exhaust flue compatibility simplifies venting compared to older metal ductwork requirements.

Warranty & Reliability

Coverage spans 10 years with online registration, standard for Goodman residential equipment. This protects against compressor failure, heat exchanger defects, and component malfunctions during normal operation. Online registration is straightforward and activates coverage immediately. This warranty duration provides reasonable protection for the $647 investment, though some premium competitors offer 12-15 year coverage.

Specifications

SKUACiQ-36-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU36,000
Heating BTU100,000
RefrigerantR454B
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 Line3/8"
Suction Line3/4"
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 Amps
Min. Breaker Size18.7 Amps
Tonnage3.5 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 Number7424272
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesModulating
Fuel TypePropane, Natural Gas
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length30 feet

Frequently Asked Questions

How does 97% AFUE furnace efficiency translate to real heating savings? +
A 97% AFUE furnace wastes only 3% of fuel as exhaust heat versus 10-20% for older units. On a $1,500 annual heating bill, you save approximately $150-300 yearly compared to 80-85% equipment. Savings grow in colder climates with longer heating seasons.
Is this system compatible with existing ductwork from older units? +
Generally yes, if your current system uses similar ducting diameter and configuration. The downflow design works well with basement or attic installations. Have an HVAC contractor evaluate your existing ductwork for proper CFM flow and sealing before installation.
How does 14 SEER compare to newer 16-18 SEER systems? +
14 SEER delivers solid cooling efficiency and Energy Star qualification. Newer 16-18 SEER models save 10-30% more cooling energy but cost $1,500-3,000 more. This unit suits moderate climates where cooling isn't extreme. Hot climates benefit more from higher SEER ratings.
Why choose this over split systems or heat pumps? +
Gas furnaces excel in heating efficiency and performance in extreme cold where heat pumps struggle. This system costs considerably less than cold-climate heat pumps while delivering superior heating. Choose heat pumps primarily if heating demand is minimal in your region.
Does the 10-year warranty cover labor costs? +
The warranty covers parts only. Labor, service calls, and refrigerant recharges are homeowner responsibility. Many contractors bundle labor warranties separately during installation for added peace of mind.

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