Independent Review · Updated June 2026

4 Ton 13 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency gas furnace and AC combo with modulating heat and strong cooling power

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 13 SEER 97% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
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// Bottom Line
This Goodman system excels for homeowners seeking premium heating efficiency (97% AFUE) paired with solid cooling capacity in upflow configurations. It's ideal for homes needing both seasonal comfort and energy cost reduction, especially where rebates apply.

Review

Goodman's 4-ton combo system combines a 100,000 BTU furnace with 48,000 BTU cooling in a single upflow unit, addressing both seasonal comfort needs without split installations. The system achieves Energy Star certification and targets homes where ductwork flows upward, eliminating complexity on that front. At this performance tier, it competes with mid-range offerings from Carrier and Lennox while maintaining straightforward integration into existing homes.

The 97% AFUE rating translates to minimal heating losses, keeping propane or natural gas bills lean during winter months. Cooling delivers 13 SEER1 efficiency paired with a modulating burner that throttles output instead of on/off cycling, which smooths temperature swings. The variable-speed ECM blower motor reaches 2,000 CFM maximum, ensuring balanced air distribution across multiple zones while consuming less power during partial-load operation.

Pros & Cons

Pros

  • 97% AFUE heating efficiency reduces natural gas consumption and monthly heating bills significantly
  • Modulating burner stages adjust heat output precisely, avoiding waste and improving comfort consistency
  • 13 SEER cooling with 48,000 BTU capacity handles summer loads efficiently on tight electrical budgets
  • Variable-speed ECM blower motor optimizes airflow distribution and reduces standby electricity draw
  • Energy Star certified system qualifies for utility rebates that offset equipment costs

Cons

  • Single-stage compressor lacks variable cooling capacity during mild weather, reducing seasonal efficiency
  • 76 dB noise level runs louder than premium models, noticeable during operation in quiet homes
  • Requires PVC plastic flue venting, which limits flexibility on some existing retrofit jobs

Who Should Buy

Best For

Homeowners in cold climates who prioritize heating season savings and can leverage utility rebates. This system rewards those installing in upflow configurations with high AFUE ratings and stable year-round performance.

Consider Alternatives If

Buyers needing variable-capacity cooling in humid climates or those seeking whisper-quiet operation should explore two-stage compressor units or premium models under 72 dB.

4 Ton 13 SEER 97% AFUE 100,000 BTU Goodman Gas Fur
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Installation

Installation requires standard PVC plastic vent piping, which flows freely from the right-side flue location. Electrical demand ranges from 26.3 to 45 amps at 115V single-phase, fitting most residential panels without upgrade costs. Technicians need experience with R454B refrigerant charging and modulating burner calibration, though wiring and ductwork connections remain conventional.

Warranty & Reliability

Goodman covers parts and labor for 10 years when you register online within 60 days of installation. This extended protection exceeds industry baseline and reflects confidence in component longevity. Registration is simple and activates automatically, providing peace of mind on compressor, heat exchanger, and blower motor failures.

Specifications

SKUACIQ-48-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU48,000
Heating BTU100,000
RefrigerantR454B
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)76
Weight (in lbs)120.000000
FeatureSpec
ReplacesGSX130483, GSX130484, GSX130485
Energy StarYes
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Line3/8"
Suction Line1 1/8"
Liquid Valve Size3/8"
Max Breaker Size45 amps
Min. Breaker Size26.3 amps
Tonnage5 Ton
Valve TypeSweat
Height30"
Width21"
Depth21"
ResourcesCAPT Installation Manual CAPT 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 Number7424267
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesModulating
Fuel TypePropane, Natural Gas
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

How does 97% AFUE compare to older furnaces I might replace? +
Standard units from 15 years ago operated near 78-82% AFUE, wasting 18-22% of fuel as exhaust. This 97% model recovers most heat, cutting heating energy consumption by roughly 20%. Over 15 years, that savings often exceeds $3,000 on natural gas or propane bills.
Can I install this in a downflow basement configuration? +
Yes, specs confirm both upflow and downflow capability. However, review your existing ductwork layout before ordering. Downflow installs may require duct modifications and different flue venting paths depending on your basement ceiling height and furnace placement.
Why is SEER 13 considered solid but not premium? +
SEER 13 meets federal minimum standards for 2023 and delivers respectable efficiency. Premium units hit 16-18 SEER with variable-speed compressors that modulate capacity. Single-stage designs like this one run full-load constantly, reducing part-load efficiency during shoulder seasons.
Is this system compatible with my existing AC lines and furnace ductwork? +
Compatibility depends on your current refrigerant type and ductwork sizing. The 3/8-inch liquid line and 1 1/8-inch suction line are standard; however, R454B refrigerant is newer and may require line flush procedures. Have a licensed contractor verify your existing system before purchase.
What does the 10-year warranty actually cover if something fails? +
Parts and labor failures on refrigeration components, heat exchanger, and blower motor are covered. Consumables like filters and wear items are excluded. Registration is required within 60 days; warranty is void without proof of professional installation.

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