Independent Review · Updated June 2026

Goodman 5 Ton 15 SEER 96% 100,000 BTU Furnace & AC System - R410A Downflow

High-efficiency 5-ton combo system with two-stage cooling and 96% heating reliability

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
Goodman 5 Ton 15 SEER 96% 100,000 BTU Furnace & AC System - R410A Downflow
Current Price
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// Bottom Line
This Goodman system is ideal for contractors and homeowners replacing older equipment in homes with existing ductwork sized for downflow/horizontal configurations. The 96% AFUE furnace and two-stage 5-ton AC deliver solid efficiency without premium pricing, making it a practical choice for mixed climates.

Review

The Goodman 5-ton 15 SEER 96% furnace and AC combo occupies a practical middle ground in the HVAC market. This downflow configuration pairs a two-stage scroll compressor with a variable-speed ECM blower motor, delivering balanced performance for mixed-climate homes. At this price point and efficiency tier, it competes directly with other mid-range builder-grade systems rather than premium offerings, making it relevant for cost-conscious contractors and homeowners alike.

Heating output reaches 100,000 BTU at 96% AFUE, meaning only 4 BTU of every 100 escape unused. Cooling capacity sits at 57,000 BTU with SEER2 18 and two-stage condenser operation. The variable-speed blower maxes out at 2000 CFM and automatically adjusts during part-load conditions, reducing standby energy draw. Electrical requirements are modest at 208/230V single phase, with a 60-amp breaker rating for flexible installation in older homes.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency meets modern building codes and minimizes fuel waste
  • Two-stage compressor and condenser reduce short cycling and improve part-load efficiency
  • Variable-speed ECM blower motor adapts to demand, lowering utility bills and noise
  • SEER2 18 cooling rating exceeds minimum standards for most regions
  • Compact 21×21×30 inch footprint fits tight closet installations
  • Rebates available through local utilities, reducing out-of-pocket cost

Cons

  • SEER2 18 lags premium units rated 20+, limiting long-term efficiency gains
  • No Energy Star certification despite solid efficiency numbers
  • 74 dBA noise level is audible during operation, noticeable in quiet homes
  • Downflow-only configuration limits retrofits to homes with basement or crawlspace placement

Who Should Buy

Best For

Contractors working on replacement jobs in homes with existing downflow ductwork, and homeowners in moderate climates seeking reliable efficiency without premium pricing. Ideal for someone prioritizing dependability and rebate eligibility over cutting-edge SEER ratings.

Consider Alternatives If

Anyone installing in attic spaces, homes needing upflow-only configuration, or buyers chasing maximum efficiency ratings should evaluate higher-tier Goodman units or competing brands.

Goodman 5 Ton 15 SEER 96% 100,000 BTU Furnace & AC
$0
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Installation

This furnace requires plastic or PVC exhaust flue, which simplifies installation compared to metal-duct systems and reduces corrosion risk. The downflow/horizontal orientation demands either basement or crawlspace placement with return air ducting routed overhead. Sweat fittings on the 3/8 inch liquid line and 7/8 inch suction line require moderate soldering skill. Most installations take 8 to 12 hours for experienced techs.

Warranty & Reliability

Goodman includes a standard 10-year parts warranty when you register the unit online after purchase. This covers compressor, blower motor, and heat exchanger defects, but does not include labor or service calls. Online registration is straightforward and recommended immediately after startup to activate coverage.

Specifications

SKUCAPT4961C4
Brand/ManufacturerGoodman
Cooling BTU57,000
Heating BTU100,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)74
Weight (in lbs)73.000000
FeatureSpec
AHRI Certificate Number7368844
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationUpflow / Downflow
Energy StarNo
Burner StagesTwo
Fuel TypePropane, Natural Gas
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.
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size60 amps
Min. Breaker Size36.7 amps
Tonnage5 Ton
Valve TypeSweat
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil

Frequently Asked Questions

What does SEER2 18 actually mean for my electricity bill? +
SEER2 measures cooling efficiency under realistic summer conditions. A 5-ton unit at SEER2 18 will cost roughly 10 to 15 percent less to operate than a SEER2 13 unit over the cooling season. Your exact savings depend on local electricity rates, climate, and thermostat setpoints.
Can I install this in an attic space? +
No, this is a downflow-only configuration designed for basement or crawlspace placement. Attempting attic installation creates negative return air pressure and venting problems. Goodman makes separate upflow models if you need attic-mounted equipment.
How loud is 74 dBA during normal operation? +
74 dBA is comparable to typical conversation volume, noticeable but not objectionable in most homes. Two-stage operation keeps the unit running at lower capacity most of the time, which reduces noise compared to single-stage systems. Premium Goodman models offer quieter operation.
Is this better than a higher-SEER unit from another brand? +
Not necessarily. SEER2 18 from Goodman delivers solid value, but units rated SEER2 20 or 22 from other manufacturers offer measurably better efficiency if you can justify the higher upfront cost. Compare total cost of ownership, not just efficiency rating alone.
Does the 10-year warranty cover refrigerant and labor? +
No, the 10-year parts warranty covers internal components only. You pay separately for refrigerant, service calls, and labor. Some contractors offer extended service plans that add labor coverage for an additional fee.

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