Independent Review · Updated June 2026

4 Ton 14 SEER 80% AFUE 100,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow

Solid mid-tier heat pump with gas backup, Energy Star rated and rebate eligible.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 14 SEER 80% AFUE 100,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow
Current Price
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// Bottom Line
This ACiQ unit works best for contractors upgrading homes in moderate climates who need a no-frills, dependable hybrid system. The 14 SEER rating and Energy Star certification keep energy bills reasonable, while the 100,000 BTU gas furnace provides strong heating backup when temperatures drop.

Review

The ACiQ 4-ton hybrid system combines a heat pump condenser with an 80% AFUE gas furnace for year-round comfort. This upflow configuration fits standard attic or basement installations common in residential construction. The unit carries an Energy Star label and qualifies for rebates, making it attractive to budget-conscious contractors and homeowners. At 5 tons rated capacity, it handles homes between 1,500 and 2,000 square feet effectively. ACiQ positions this as a mid-market alternative to premium brands without sacrificing documented performance.

Cooling performance reaches 46,000 BTU with a 14 SEER rating, meaning efficient operation during shoulder seasons but moderate consumption during peak summer. The 100,000 BTU furnace handles winter demands with single-stage burner operation. R454B refrigerant reduces environmental impact compared to older R410A systems. The scroll compressor delivers consistent performance, though single-stage operation means it cycles on and off rather than modulating capacity. Maximum airflow of 2,000 CFM supports proper distribution in medium-sized homes. These specs deliver reliable, middle-of-the-road efficiency suitable for regions without extreme seasonal swings.

Pros & Cons

Pros

  • 14 SEER efficiency meets Energy Star requirements, reducing cooling costs compared to older units
  • 100,000 BTU gas furnace delivers adequate heating for most residential applications
  • 80% AFUE furnace is standard efficiency baseline, suitable for cost-conscious buyers
  • Scroll compressor design is proven reliable technology with fewer moving parts
  • R454B refrigerant is low-GWP, meeting modern environmental standards
  • 5-ton capacity handles larger homes without undersizing issues
  • Multi-speed PSC blower motor allows some temperature control flexibility
  • Rebate eligible, which can offset upfront costs significantly

Cons

  • 74 dB noise level is moderately loud for some residential settings, especially during peak cooling
  • Single-stage compressor means no modulation, running at full capacity or off with less granular efficiency control
  • 80% AFUE furnace lags behind high-efficiency models (90%+ AFUE), costing more to heat over time
  • Requires 120V single-phase power and 26.4-40 amp breaker, standard but worth verifying on older homes

Who Should Buy

Best For

Homeowners and contractors in moderate climates seeking affordable hybrid heating and cooling without premium pricing. This system suits properties where gas furnace backup is preferred and energy consumption is secondary to reliability.

Consider Alternatives If

Buyers in very cold climates needing maximum heating efficiency should consider higher AFUE furnaces, and those in mild climates may find a heat pump only system more cost-effective.

4 Ton 14 SEER 80% AFUE 100,000 BTU Goodman Gas Fur
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Installation

The upflow A-coil design mounts vertically, typically above the furnace unit in attics or utility closets. Dimensions of 34.5 inches tall, 21 inches wide, and 28.75 inches deep require adequate clearance. Sweat valve connections use 3/8-inch liquid and 1 1/8-inch suction lines with 1/2-inch insulation. The unit weighs 120 pounds and requires two technicians for safe handling. Electrical work involves 120V single-phase service and 26.4 to 40-amp breaker installation. Metal flue exhaust exits from the top, requiring proper venting termination.

Warranty & Reliability

Coverage extends 10 years with online registration, protecting parts and labor defects. This is standard industry warranty length for mid-tier equipment. Online registration is mandatory to activate coverage, so buyers must complete paperwork promptly. The warranty covers compressor, heat exchanger, and refrigerant circuit components. This protection aligns with contractor expectations for systems in this efficiency tier.

Specifications

SKUACIQ-48-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU46,000
Heating BTU100,000
RefrigerantR454B
Electrical120 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 Manual Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information 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 RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorMulti Speed - PSC
Maximum CFM2000
Flue LocationTop
Burner StagesSingle
Fuel TypeGas
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

Does this system work in cold climates? +
The 100,000 BTU furnace provides adequate heating, but the 80% AFUE efficiency means higher operating costs in harsh winters. Homes north of zone 5 may benefit from 90%+ AFUE alternatives. The system handles most northern U.S. applications, but fuel bills will reflect the lower efficiency rating.
Can this replace my existing Goodman GSZ140491? +
Yes, ACiQ lists this unit as a direct replacement for GSZ140491. However, verify existing ductwork, electrical service, and refrigerant lines before ordering. A professional assessment confirms compatibility with your current furnace and air handler.
What does 14 SEER actually mean for my cooling costs? +
A 14 SEER unit costs approximately 25-30% less to operate than a 10 SEER system. Actual savings depend on local electricity rates and cooling season length. Over 10 years, this translates to $400-800 in reduced cooling expenses for typical residential use.
Should I choose this over a higher SEER model? +
Higher SEER units (16+) cost 20-35% more upfront but lower cooling bills over time. This 14 SEER model suits buyers prioritizing initial cost. If you plan to stay 12+ years, higher SEER usually pays back. Otherwise, this addresses short-term ownership affordably.
Does online registration affect my warranty? +
Yes, mandatory online registration activates the 10-year coverage. Failure to register voids warranty protection. Complete registration within 30 days of installation to ensure full protection on parts and labor claims.

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