Independent Review · Updated June 2026

Goodman 3.5 Ton 14 SEER 92% 100,000 BTU Furnace & AC System - R410A Upflow

High-efficiency gas furnace and AC combo with strong SEER ratings and solid warranty coverage.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
Goodman 3.5 Ton 14 SEER 92% 100,000 BTU Furnace & AC System - R410A Upflow
Current Price
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// Bottom Line
This Goodman system works well for homeowners replacing aging equipment or building new HVAC setups in moderate climates. The 92% furnace efficiency and 16 SEER2 cooling make it competitive at this price point, especially with rebates available.

Review

The Goodman 3.5 Ton 14 SEER 92% 100,000 BTU furnace and AC system represents a solid middle-ground option for residential HVAC replacement. Goodman has built a reputation as a no-frills, reliable brand favored by contractors for straightforward installations and dependable performance. This upflow configuration fits basements and utility closets, making it practical for retrofits. The system qualifies for available rebates through Online Supply, which can meaningfully reduce out-of-pocket cost.

Performance specs show a 100,000 BTU heating output with 92% furnace efficiency, putting it above standard 80% units common in older homes. The AC side delivers 42,000 BTU cooling with a 16 SEER2 rating, exceeding the advertised 14 SEER baseline. A scroll compressor, single-stage operation, and multi-speed blower motor keep the system simple and serviceable. The 73 dB noise level is moderate, typical for this tonnage and single-stage design.

Pros & Cons

Pros

  • 92% AFUE furnace efficiency reduces heating costs compared to older 80% units
  • 16 SEER2 cooling rating exceeds the 14 SEER base claim, delivering better AC performance
  • Energy Star certified with multi-speed blower motor optimizes comfort and power usage
  • Scroll compressor design is durable and commonly stocked by HVAC suppliers
  • 10-year warranty with online registration provides solid protection and peace of mind
  • Upflow/downflow configuration works in basements, attics, or utility closets

Cons

  • Single-stage compressor means less modulation, running full capacity or off rather than ramping efficiency
  • 73 dB noise level is moderately loud, noticeable during operation in quiet homes
  • No variable-speed compressor limits performance on extremely hot days above 95 degrees

Who Should Buy

Best For

Homeowners in zones 4-6 upgrading from 1990s or early 2000s HVAC equipment will see meaningful energy savings. Contractors installing complete systems in new construction or replacement projects benefit from the rebate availability and straightforward service record.

Consider Alternatives If

Buyers in very hot climates (zone 8+) needing maximum cooling capacity or those prioritizing whisper-quiet operation should compare two-stage or variable-speed models.

Goodman 3.5 Ton 14 SEER 92% 100,000 BTU Furnace &
$0
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Installation

Installation requires standard upflow placement with clearance for the A-coil and furnace chamber. The system needs a 115V single-phase electrical connection with 22.4 to 35 amp breaker capacity, standard in most homes. Refrigerant lines use 3/8-inch and 1 1/8-inch diameters with 1/2-inch insulation supplied on up to 50 feet of suction line. PVC exhaust flue is mandatory with right-side flue location. Technicians familiar with Goodman equipment will complete installation quickly.

Warranty & Reliability

Goodman backs this system with a 10-year warranty when you complete online registration after purchase. This covers parts and compressor defects, which is standard for the mid-tier market segment. Registration takes minutes and should not be skipped, as it activates the full coverage period. Labor is typically excluded, so factor service calls into your budget if needed.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU42,000
Heating BTU100,000
RefrigerantR410A or R22
Electrical115 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)48.000000
FeatureSpec
Product FeaturesRebate Available
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size35 amps
Min. Breaker Size22.4 amps
Tonnage5 Ton
Valve TypeSweat
Height30"
Width21"
Depth21"
ResourcesCAPF Installation Manual CAPF 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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE92%
Blower MotorMulti Speed
Maximum CFM1600
ConfigurationUpflow / Downflow
Flue LocationRight
Burner StagesSingle
Fuel TypeGas
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

Why does the spec sheet list both 3.5 ton and 5 ton tonnage? +
The unit is sized at 3.5 tons for cooling capacity (42,000 BTU divided by 12,000 BTU per ton), but the furnace heating output is oversized at 5 tons equivalent. This mismatch is not uncommon in combo systems and allows flexible installation scenarios without affecting performance.
Can I use this system with my existing ductwork? +
The 1,600 CFM maximum airflow rate fits standard residential ductwork. If your ducts were sized for a smaller system, efficiency may suffer slightly. Have an HVAC tech measure static pressure to confirm compatibility before installation.
Is 16 SEER2 good enough for hot climates? +
16 SEER2 is respectable but not exceptional. In zones 7-8, two-stage or variable-speed compressors with 18+ SEER2 ratings will save more during extended cooling seasons. This unit performs best in moderate climates where heating and cooling demands are balanced.
How does this Goodman compare to Lennox or Carrier at the same price? +
Goodman prioritizes reliability and serviceability over premium features. Lennox and Carrier models at this price point often offer quieter operation or better modulation. Goodman wins on parts availability and technician familiarity, reducing long-term maintenance costs.
What happens if I don't register the warranty online? +
Skipping registration voids the 10-year coverage, dropping you to a basic 1-year parts warranty. Always register within 30 days of installation. Keep your receipt and registration confirmation in a safe place.

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