Independent Review · Updated June 2026

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

High-efficiency modulating furnace with R454B cooling, ideal for tight spaces

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 14 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow
Current Price
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// Bottom Line
This ACiQ system excels for contractors needing a compact, downflow-configured unit with excellent heating efficiency (97% AFUE) and solid cooling performance (14 SEER). Best suited for retrofits or new builds where space constraints are a real concern.

Review

The ACiQ 5-ton downflow system represents a practical middle ground for HVAC professionals navigating tight installation spaces. Goodman's respected manufacturing platform, wrapped in an aggressive price point, makes this unit attractive for both residential retrofits and new construction. The downflow configuration and horizontal capability address a real market gap where standard upflow equipment simply won't fit, whether that's a basement installation or cramped attic scenario.

Performance specs tell a clear story of heating-focused design. The 97% AFUE rating with a modulating burner delivers exceptional gas furnace efficiency, consuming significantly less fuel than 80-85% AFUE competitors. Cooling delivers 60,000 BTU at 14 SEER1 via a scroll compressor and R454B refrigerant, respectable but not aggressive compared to newer two-stage units hitting 16+ SEER. The variable-speed ECM blower, rated to 2,000 CFM maximum, adjusts output dynamically and reduces the noise penalty typical of single-speed motors.

Pros & Cons

Pros

  • Modulating burner reduces heating cycles and energy waste compared to single-stage units
  • 97% AFUE heating efficiency delivers near-maximum performance, reducing gas consumption significantly
  • Variable-speed ECM blower motor adapts to load conditions, improving comfort and efficiency
  • Compact A-coil design fits tight attic and crawlspace installations where standard upflow units won't work
  • PVC flue compatibility simplifies venting and reduces installation costs versus metal flue requirements
  • R454B refrigerant with 14 SEER rating meets current efficiency standards without requiring retrofits

Cons

  • 14 SEER1 rating is respectable but not best-in-class, missing out on newer 16+ SEER units available from competitors
  • Single-stage condenser limits cooling efficiency compared to two-stage or variable-capacity systems
  • 75 dB noise level sits at the louder end, potentially audible in finished basement installations
  • No Energy Star certification despite strong AFUE rating suggests cooling side holds back overall efficiency recognition

Who Should Buy

Best For

Contractors retrofitting older homes where downflow configuration is mandatory, or builders working in tight attic spaces where standard 60-inch upflow units create installation headaches. Homeowners in moderate climates who prioritize heating efficiency and need reliable, straightforward equipment without premium pricing.

Consider Alternatives If

Buyers seeking cutting-edge cooling efficiency should look at newer 16 SEER units, and properties with existing two-stage or modulating cooling systems should match that capability rather than downgrading to single-stage.

5 Ton 14 SEER 97% AFUE 100,000 BTU Goodman Gas Fur
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Installation

Installation complexity stays moderate thanks to standard 3/8-inch liquid and 7/8-inch suction line sizing. The 208/230V single-phase requirement fits most residential panels, though the 32.8 to 50-amp breaker range demands proper circuit capacity planning. PVC flue venting simplifies ductwork compared to traditional metal, reducing material costs. Downflow/horizontal configuration means careful placement in attics or basements to maintain proper refrigerant flow and blower discharge direction.

Warranty & Reliability

The 10-year parts warranty, activated by online registration, provides solid baseline coverage standard in the industry. Registration is mandatory to unlock the warranty, so don't skip that step after installation. Coverage applies to compressor, blower motor, and heat exchanger, protecting against factory defects during the critical first decade of operation.

Specifications

SKUACIQ-60-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU60,000
Heating BTU100,000
RefrigerantR454B
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)75
Weight (in lbs)120.000000
FeatureSpec
AHRI Certificate Number7424272
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Energy StarNo
Burner StagesModulating
Fuel TypePropane, Natural Gas
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.
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size50 amps
Min. Breaker Size32.8 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

What makes the 97% AFUE rating significant compared to typical furnaces? +
97% AFUE means 97 cents of every dollar spent on gas becomes usable heat, compared to 80-85% on older single-stage units. Over a 20-year lifespan in cold climates, this efficiency translates to thousands in fuel savings. Modulating burner technology makes this possible by fine-tuning gas flow rather than cycling on and off.
Is this unit suitable for horizontal/basement installation? +
Yes, the downflow/horizontal configuration explicitly supports both orientations. Ensure return air enters from the side, supply air exits downward, and discharge clearance matches local codes. The compact 21x21x30-inch footprint fits basement corners where upflow units are impossible. Verify PVC flue routing before installation.
How does 14 SEER cooling compare to current market standards? +
14 SEER1 meets baseline efficiency codes but ranks mid-pack against newer competitors offering 16-18 SEER. Single-stage compressor limits part-load performance in mild weather. If cooling efficiency dominates your priority, consider units with variable-capacity compressors, though expect higher upfront costs.
Will this system work with my existing ductwork and thermostat? +
The 2,000 CFM maximum airflow adapts to most residential ductwork. Compatible with standard thermostats for basic heating/cooling control, though variable-speed ECM blower performance improves with smart thermostats managing multiple speeds. Verify existing duct sizing and seal leaks before installation to avoid airflow bottlenecks.
What happens if I don't register for the warranty? +
Without online registration, manufacturer warranty coverage becomes void. Registration is free and takes minutes through ACiQ's website. Keep proof of installation and purchase documentation on file for any future claims.

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