Independent Review · Updated June 2026

3.5 Ton 14 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency gas furnace and AC combo with solid SEER 14 cooling and 96% AFUE heating

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3.5 Ton 14 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system works well for homeowners in mixed climates who need reliable heating and cooling without premium pricing. The 96% AFUE furnace and 14 SEER air conditioner deliver real energy savings, making it ideal for those replacing older two-piece systems.

Review

This Goodman combo system bundles a gas furnace and air conditioner into one practical solution for homeowners ready to replace aging equipment. The unit handles upflow installation in attics or basements, making it flexible for most home layouts. Goodman has built solid market reputation for no-frills equipment that runs dependably without cutting-edge features or premium pricing. The system appears positioned for cost-conscious contractors and homeowners who prioritize efficiency gains over luxury features.

The furnace delivers 80,000 BTU heating output at 96% AFUE, meaning 96 cents of every energy dollar converts to heat, a significant jump from older 80% AFUE models. Cooling capacity shows 42,000 BTU with 14 SEER efficiency, meeting modern standards without reaching variable-capacity territory. The scroll compressor handles R410A refrigerant on a single-stage configuration, keeping complexity low. Multi-speed blower motor rated to 2000 CFM allows customization of airflow for comfort and humidity management, outperforming basic single-speed alternatives.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency means lower heating bills, especially in northern climates with long heating seasons
  • 14 SEER cooling efficiency exceeds federal minimums and qualifies for many utility rebates
  • Scroll compressor is proven reliable technology with lower failure rates than rotary designs
  • Multi-speed blower motor allows better dehumidification and zone control compared to single-speed units
  • PVC exhaust option simplifies installation in tight spaces where metal ductwork won't fit
  • 10-year warranty with online registration provides solid coverage for parts and labor

Cons

  • Single-stage cooling means no variable capacity, so efficiency drops significantly in mild weather or partial-load conditions
  • 73 dB noise level is moderately loud, noticeable from nearby rooms during operation
  • Spec sheet lists conflicting tonnage data, showing both 3.5 ton and 5 ton, creating confusion about actual capacity
  • Not ENERGY STAR certified despite good SEER/AFUE numbers, missing marketing advantage

Who Should Buy

Best For

Homeowners in moderate climates needing a straightforward, efficient furnace-AC replacement should consider this system. It's especially practical for those with budget constraints who want proven Goodman reliability without variable-speed complexity.

Consider Alternatives If

Buyers seeking maximum efficiency in extreme climates or those wanting variable-capacity cooling for quiet, precise temperature control should explore two-stage or modulating alternatives.

3.5 Ton 14 SEER 96% AFUE 80,000 BTU Goodman Gas Fu
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Installation

This upflow A-coil design fits standard equipment closets or attic spaces with 34.5-inch height and 21-by-28.75-inch footprint. PVC exhaust compatibility eliminates expensive metal ductwork requirements in tight installations. Electrical needs 115V single-phase power with 22 to 35 amp breaker sizing. Standard 3/8-inch liquid and 7/8-inch suction lines connect easily to existing outdoor condenser units. Most qualified HVAC technicians complete installation in one day.

Warranty & Reliability

Goodman provides a 10-year parts and labor warranty when you register the system online within 30 days of installation. This covers compressor failure, heat exchanger leaks, and blower motor defects, standard for mid-tier equipment. The warranty requires professional installation, so DIY work voids coverage. Registration is straightforward and accessible through Goodman's website.

Specifications

SKULS38783830
Brand/ManufacturerOnline Supply
Cooling BTU42,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)30.000000
FeatureSpec
Energy StarNo
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size35 amps
Min. Breaker Size22 amps
Tonnage5 Ton
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 Line7/8"
StyleA-Coil
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti Speed
Maximum CFM2000
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Suction Line Insulation Thickness3/8"
Length30 feet

Frequently Asked Questions

What's the actual tonnage, 3.5 or 5 ton? +
The spec sheet contains conflicting information, listing both 3.5 and 5 ton ratings. Verify tonnage with the seller or Goodman directly before purchase, as it affects equipment compatibility and heating/cooling capacity. This discrepancy should be clarified before installation to ensure proper system sizing.
Can I use this with my existing outdoor condenser unit? +
Yes, if your current condenser is compatible with R410A refrigerant and uses standard 3/8-inch liquid and 7/8-inch suction line connections. Confirm refrigerant type with your current system documentation. Older R22 equipment requires complete system replacement due to refrigerant regulations.
How much will this reduce my energy bills compared to my current system? +
Switching from an older 80% AFUE furnace and 10 SEER air conditioner to this 96% AFUE and 14 SEER system typically saves 15-25% on combined heating and cooling costs, depending on your climate and usage patterns. Actual savings vary by local utility rates and system runtime.
Is this better than budget models from other brands? +
Goodman's 96% AFUE and 14 SEER match or exceed budget alternatives from Frigidaire or Payne. The scroll compressor and multi-speed blower add reliability compared to stripped-down models. However, this isn't premium equipment, lacking variable staging available in higher-tier brands.
What if something fails after one year? +
The 10-year warranty covers parts and labor for manufacturing defects. Contact your installer or Goodman directly with your warranty registration number. Damage from improper installation or maintenance isn't covered.

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