Independent Review · Updated June 2026

3 Ton 13 SEER 97% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow

97% AFUE furnace paired with 13 SEER cooling, $736 entry-level efficiency combo.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 13 SEER 97% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow
Current Price
$736
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system excels for budget-conscious homeowners upgrading from older equipment or contractors building affordable replacement packages. The 97% AFUE furnace and 13 SEER condenser deliver solid efficiency gains without premium pricing, making it practical for moderate climates where balanced heating and cooling demand matters.

Review

The Goodman ACiQ 3-ton system represents honest mid-market positioning in HVAC equipment. At $736, this downflow configuration bundles a gas furnace and air conditioning condenser designed for homes requiring balanced seasonal load management. It competes directly against older split systems still operating at 78 percent AFUE and 10 SEER ratings, making the efficiency jump substantial for typical replacement scenarios. The A-coil downflow design accommodates basement or closet installation common in residential retrofits.

Performance metrics tell a practical story. The furnace generates 80,000 BTU output with 97 percent AFUE through modulating burner stages, while the condenser delivers 36,000 BTU at 13 SEER1 using a single-stage reciprocating compressor. The variable-speed ECM blower reaches 1,600 CFM maximum airflow, reducing energy waste during part-load conditions when the system operates below full capacity. Refrigerant lines measure 3/8 inch liquid and 7/8 inch suction, accommodating standard residential piping configurations.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency translates to measurable gas savings, approximately 30 percent more efficient than 1990s-era systems
  • 13 SEER rating qualifies as ENERGY STAR certified, eligible for many state and utility rebates
  • Modulating burner stages reduce short-cycling and improve comfort by varying heat output rather than on-off cycles
  • Variable-speed ECM blower motor delivers up to 1,600 CFM with whisper-quiet operation in lower stages
  • 10-year compressor and parts warranty with online registration provides genuine peace of mind coverage

Cons

  • Single-stage condenser cannot modulate cooling capacity, meaning it cycles on-off rather than ramping output smoothly like higher-tier models
  • 74 dB noise level is acceptable but noticeable, particularly during peak cooling in hot climates
  • R454B refrigerant requires technicians certified in low-GWP handling, potentially limiting repair options in rural areas

Who Should Buy

Best For

Homeowners in moderate climates seeking straightforward heating-cooling balance without spending $1,500 plus on premium systems. Contractors building replacement packages where budget limitations exist but ENERGY STAR certification and solid warranties are non-negotiable.

Consider Alternatives If

Hot-climate homeowners needing aggressive cooling capacity should look at higher-tonnage or two-stage compressor units, and noise-sensitive buyers should audition this unit before committing.

3 Ton 13 SEER 97% AFUE 80,000 BTU Goodman Gas Furn
$736
Buy at HVACDirect →

Installation

Installation requires standard downflow placement with adequate clearance for airflow, suction line insulation thickness of 3/8 inch, and PVC plastic exhaust venting. The 120-pound unit demands minimal structural reinforcement in most basements. Licensed technicians should verify R454B refrigerant compatibility and field charge the system according to manufacturer subcooling tables, a straightforward but mandatory step.

Warranty & Reliability

Ten years of compressor and parts coverage applies upon online registration, eliminating the need for paid warranty registration fees. This full-system protection covers labor at participating Goodman dealers, providing genuine financial protection against refrigerant leaks or compressor failure during the critical first decade of operation.

Specifications

SKUACiQ-36-EHPD-UPG
Brand/ManufacturerACiQ
Cooling BTU36,000
Heating BTU80,000
RefrigerantR454B
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)120.000000
FeatureSpec
ReplacesGSX130362, GSX130363, GSX130365
Energy StarYes
SEER1 (Efficiency)13
Condenser StagesSingle Stage
Compressor TypeReciprocating
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 amps
Min. Breaker Size19.1 amps
Tonnage3.5 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.
ConfigurationDownflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
AHRI Certificate Number7424271
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM1600
Flue LocationRight
Burner StagesModulating
Fuel TypePropane, Natural Gas
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

Does this system qualify for tax credits or rebates? +
Yes, the 13 SEER ENERGY STAR certification makes it eligible for state and local utility rebates, typically ranging from $200 to $500 depending on location. Federal tax credits apply only to systems rated 16 SEER or higher, so this unit misses federal incentives but captures state-level programs consistently.
Can this downflow unit fit my crawlspace installation? +
The 34.5 inch height, 21 inch width, and 28.75 inch depth make it workable in many crawlspaces, but verify clearance for return air intake and conditioned airflow. The right-side flue location offers flexibility, though you must confirm your ductwork supports downflow distribution.
How does 13 SEER compare to newer equipment? +
13 SEER is respectable but mid-tier. Newer systems reach 16 to 21 SEER with variable-capacity compressors. This single-stage unit costs less upfront but cycles more frequently in partial-load conditions, offsetting some efficiency advantage versus modulating competitors.
What's the real-world gas and electric savings versus a 1990s system? +
Older furnaces typically achieve 78 percent AFUE versus this unit's 97 percent, representing roughly 24 percent annual gas savings. Blower operation uses 40 percent less electricity due to ECM variable-speed motor versus permanent-split-capacitor designs.
Does online warranty registration actually matter? +
Yes. Registration activates the full 10-year coverage automatically. Without it, coverage defaults to one year, making registration a five-minute step that protects your investment substantially.

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