Independent Review · Updated June 2026

4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow

Energy Star certified dual-fuel system with solid 14 SEER and 92% AFUE efficiency

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow
Current Price
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// Bottom Line
This ACiQ 4-ton dual-fuel system works well for homeowners in mixed climates who want reliable gas heating backup with summer cooling capability. The 14 SEER rating and 92% AFUE furnace efficiency deliver solid year-round performance without premium pricing.

Review

The ACiQ ACIQ-48-EHPD-UPG is an accessible dual-fuel system combining gas heating with air conditioning in one compact unit. This 4-ton configuration delivers 100,000 BTU heating output and 46,000 BTU cooling capacity, covering most residential applications. The unit achieves Energy Star certification through its 14 SEER cooling rating and 92% AFUE gas furnace efficiency, positioning it as a practical middle-ground option for homeowners seeking dependable performance without premium pricing.

Performance-wise, the scroll compressor handles the 46,000 BTU cooling load in single-stage operation, meaning it runs full capacity or shuts off rather than modulating. The gas furnace delivers full 100,000 BTU output with a single-stage burner and multi-speed blower reaching 1,600 CFM. At 74 dB, the unit produces moderate noise during peak operation. The PVC-compatible exhaust flue accepts plastic venting, and refrigerant is R454B, the modern low-GWP standard replacing older formulations.

Pros & Cons

Pros

  • 14 SEER cooling efficiency and 92% AFUE gas heating meet Energy Star standards for lower operating costs
  • Single-stage scroll compressor provides reliable, proven cooling for 4-ton applications
  • 100,000 BTU gas furnace with single-stage burner handles heating in cold climates without excessive cycling
  • Multi-speed blower motor optimizes airflow between 0 and 1,600 CFM for comfort and efficiency
  • 10-year warranty with online registration provides solid coverage and manufacturer support

Cons

  • 74 dB noise level is moderately loud during operation, noticeable in quiet neighborhoods
  • Single-stage compressor cannot modulate capacity, running at full output or off rather than matching load
  • 5-ton condenser may be oversized for 4-ton system design, potentially reducing efficiency

Who Should Buy

Best For

Contractors and homeowners in regions with moderate winter heating needs and hot summers will appreciate this dual-fuel approach. It's ideal for those who want cost-effective Energy Star equipment without spending on premium variable-capacity systems.

Consider Alternatives If

Buyers in extreme climates or those prioritizing ultra-quiet operation should look at higher SEER ratings or variable-speed models.

4 Ton 14 SEER 92% AFUE 100,000 BTU Goodman Gas Fur
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Installation

This upflow A-coil configuration suits attic or horizontal installations. It requires 3/8-inch liquid line, 1 1/8-inch suction line with 1/2-inch insulation, and accepts sweat fittings. Electrical needs are modest: 115V single-phase 60 Hz with 26.4 to 40-amp breaker sizing. The 120-pound weight and compact footprint (21 by 28.75 by 34.5 inches) simplify positioning in tight spaces.

Warranty & Reliability

The 10-year parts warranty kicks in when you register online, a straightforward requirement most buyers complete easily. Coverage protects against compressor failure and component defects, typical for this product class. Registration extends peace of mind beyond the first year, though labor and refrigerant are generally not included.

Specifications

SKUACIQ-48-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU46,000
Heating BTU100,000
RefrigerantR454B
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)120.000000
FeatureSpec
ReplacesGSZ140491
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 Size26.4 amps
Tonnage5 Ton
Valve TypeSweat
Height34.5"
Width21"
Depth28.75"
ResourcesGoodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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.
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE92%
Blower MotorMulti Speed
Maximum CFM1600
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

What's the difference between 14 SEER and other efficiency ratings I see? +
SEER measures seasonal cooling efficiency. The 14 SEER rating here meets current Energy Star requirements and sits above minimum 13 SEER standards. Variable-capacity systems reach 18+ SEER but cost significantly more. For average climates, 14 SEER saves 15 to 20 percent annually versus 10 SEER units.
Can this unit replace my old Goodman GSZ140491? +
Yes, this model is listed as a direct replacement for GSZ140491. However, verify your existing ductwork accommodates the 1,600 CFM maximum airflow. Check refrigerant lines match the 3/8-inch liquid and 1 1/8-inch suction specifications before installation.
Why does the spec sheet show 5-ton tonnage when this is a 4-ton system? +
The tonnage mismatch likely reflects the condenser capacity rather than the matched system size. This oversizing can slightly reduce efficiency. Confirm with your contractor that the indoor coil matches 4-ton specifications for proper refrigerant charge and performance.
How does the 92% AFUE compare to newer gas furnaces? +
92% AFUE is solid mid-range efficiency for gas furnaces. Premium models reach 95 to 98% AFUE with modulating burners and variable speed blowers. For typical heating seasons, the 92% model saves 10 to 15 percent versus 80% AFUE equipment.
What does the 10-year warranty actually cover? +
The warranty covers parts including the compressor and furnace components after you register online. It typically excludes labor, refrigerant, and wear items. Read the full Goodman Warranty document provided to understand exclusions and claim procedures.

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