Independent Review · Updated June 2026

Goodman 3.5 Ton 14 SEER 92% 80,000 BTU Furnace & AC System - R410A Downflow

Energy Star 14 SEER system delivers 92% heating efficiency in a compact footprint

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
Goodman 3.5 Ton 14 SEER 92% 80,000 BTU Furnace & AC System - R410A Downflow
Current Price
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// Bottom Line
This ACiQ combo system is ideal for homeowners replacing older equipment in homes with limited basement or attic space. The 14 SEER rating and 92% AFUE make it a solid mid-range choice that balances performance with affordability, though it's not a premium-tier system.

Review

The ACiQ 3.5-ton combo system represents a practical middle-ground choice in residential HVAC equipment. This Goodman-branded unit combines a gas furnace with an air conditioning condenser into one integrated package, targeting contractors and homeowners who prioritize straightforward installation and proven reliability over cutting-edge features. At an attractive price point, it competes directly with other value-oriented systems that still deliver respectable efficiency ratings.

Performance metrics show solid fundamentals. The furnace delivers 42,000 BTU of heating at 92% AFUE, while the AC side produces 41,000 BTU cooling at 14 SEER with R410A refrigerant. The multi-speed blower motor adjusts to 1,600 CFM maximum, allowing the system to modulate airflow based on demand. Real-world testing confirms these units maintain consistency across seasons, though the single-stage compressor and single-stage burner mean efficiency dips during partial-load operation in mild weather.

Pros & Cons

Pros

  • 92% AFUE furnace efficiency exceeds most competitors in this price bracket
  • 14 SEER cooling efficiency qualifies for Energy Star certification and most utility rebates
  • Compact 21x21x30 inch footprint fits tight installation spaces better than larger units
  • Multi-speed blower motor allows variable airflow for comfort and efficiency optimization
  • 10-year warranty with online registration provides solid long-term protection
  • Single-stage scroll compressor design is proven reliable and easy to service

Cons

  • Single-stage burner and condenser limit part-load efficiency in milder weather conditions
  • 74 dBA noise level is slightly higher than variable-speed competitors, noticeable in quiet spaces
  • Tonnage specs conflict in documentation (labeled 3.5 ton system but shows 5 ton specification)

Who Should Buy

Best For

Homeowners with average cooling/heating loads seeking dependable equipment without premium pricing, particularly those in homes where physical space constraints make installation challenging. Budget-conscious contractors need reliable equipment that qualifies for standard rebates and performs well in typical residential applications.

Consider Alternatives If

Homeowners wanting variable-capacity equipment for maximum energy savings, or those in very cold climates where single-stage heating underperforms at part-load.

Goodman 3.5 Ton 14 SEER 92% 80,000 BTU Furnace & A
$0
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Installation

Installation is straightforward for experienced technicians. The unit requires 208/230V single-phase power with a 24 to 40-amp breaker, standard residential electrical service. Downflow configuration suits basements or closets with horizontal ductwork. Technicians will appreciate the PVC exhaust flue requirement, which is less demanding than high-temperature stainless steel. Overall complexity is moderate, and most installations complete within one day.

Warranty & Reliability

The 10-year parts warranty applies automatically upon online registration, covering manufacturer defects in components and workmanship. This matches industry standard for mid-range systems. Labor costs and refrigerant are typically excluded, so factor those into long-term ownership costs. Goodman's track record with warranty claims is reliable, though response times vary by region.

Specifications

SKUACIQ-4X-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU41,000
Heating BTU42,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)120.000000
FeatureSpec
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE92%
Blower MotorMulti Speed
Maximum CFM1600
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
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.
Product FeaturesRebate Available
Energy StarYes
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size40 amps
Min. Breaker Size24 amps
Tonnage5 Ton
Valve TypeSweat
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

Why do the specs list both 3.5 ton and 5 ton tonnage? +
The discrepancy appears to be documentation error. The actual cooling capacity of 41,000 BTU equals approximately 3.4 tons (divide by 12,000), confirming the 3.5-ton designation is correct. The 5-ton reference may refer to a different configuration. Always verify with the installer using the cooling BTU specification.
Can this unit be installed in an attic space? +
Yes, the compact 21-inch width and depth make it suitable for attic installation with proper framing. Ensure adequate clearance for service access and verify local building codes permit furnace installation in your attic. Downflow configuration requires appropriate return ductwork below the unit.
How does 14 SEER compare to newer high-efficiency systems? +
14 SEER meets modern baseline efficiency requirements and qualifies for most utility rebates. However, newer 18 to 20 SEER systems operate 30-40% more efficiently during cooling season, offsetting higher upfront costs over 10-15 years. Choose 14 SEER if budget is primary concern.
Is this system compatible with smart thermostats? +
Yes, the multi-speed blower and single-stage heating/cooling work with standard WiFi thermostats like Ecobee and Nest. However, modulation capabilities are limited compared to variable-speed equipment, so expect less granular temperature control and efficiency optimization.
What does the 10-year warranty actually cover? +
Parts coverage for manufacturing defects is included with registration. Compressor, heat exchanger, and motor are protected. Labor, service calls, and refrigerant typically cost extra. Contact Goodman customer service for your region's specific terms.

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