Independent Review · Updated June 2026

5 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal

High-efficiency 5-ton combo system delivering 96% heating and 16 SEER cooling value

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal
Current Price
$3136
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system is ideal for homeowners replacing older equipment in moderate climates where balanced heating and cooling performance matter. At $3,136, it delivers solid efficiency specs (96% AFUE, 16 SEER) without the premium pricing of higher-tier brands, making it a practical choice for budget-conscious contractors and DIY installers.

Review

The Goodman 5-ton combo system represents practical mid-tier equipment for residential HVAC replacement. At $3,136, this horizontal A-coil configuration targets homeowners and contractors who want proven performance without flagship pricing. The system pairs a 120,000 BTU furnace with a 54,000 BTU condenser, covering typical 3-4 bedroom homes. Goodman's reputation for durability and parts availability makes this a sensible choice in the competitive 5-ton market.

Efficiency numbers are genuinely competitive here. The 96% AFUE rating means 96 cents of every heating dollar goes directly to your home, versus 80-85% in older systems. The 16 SEER cooling specification delivers measurable energy savings on AC cycles. Variable-speed ECM blower technology modulates airflow between 0-2000 CFM, reducing wasted circulation and noise when full capacity isn't needed. Two-stage burners add heating flexibility without overshooting setpoints, though the single-stage compressor limits cooling granularity.

Pros & Cons

Pros

  • 96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
  • 16 SEER cooling rating exceeds baseline ENERGY STAR requirements for better AC efficiency
  • Variable-speed ECM blower motor with 2000 CFM maximum capacity adapts to load conditions
  • Horizontal A-coil configuration works well in attic and basement installations
  • Two-stage burner and single-stage compressor provide reliable operation without complexity
  • PVC exhaust compatibility simplifies venting in modern homes versus metal ductwork

Cons

  • 73 dB noise level is moderately loud, noticeable during operation in quiet spaces
  • Single-stage compressor means cooling runs at full capacity or off, less efficient than variable-speed alternatives
  • Warranty requires online registration, creating a registration burden for some buyers
  • R410A refrigerant phase-out means future service costs may rise as supplies tighten

Who Should Buy

Best For

Homeowners in mixed climates needing both solid heating and cooling performance, plus contractors looking for reliable equipment at a fair price point. This system works especially well for homes with attic or basement space where horizontal orientation fits naturally.

Consider Alternatives If

Anyone prioritizing minimum noise output or those in very cold climates who need variable-capacity compressors should compare higher-end models with modulating heating stages.

5 Ton 15 SEER 96% AFUE 120,000 BTU Goodman Gas Fur
$3136
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Installation

Horizontal orientation requires space along a wall, typically attic or basement installation. PVC venting simplifies exhaust routing compared to metal flue pipes. Line set connections use standard 3/8-inch liquid and 1 1/8-inch suction tubing with 50-foot maximum length. Electrical demand ranges 29.6-50 amps at 208/230V single-phase, so verify existing breaker capacity before install. Most experienced HVAC techs complete setup in 4-6 hours.

Warranty & Reliability

Goodman includes a 10-year parts warranty when you complete online registration within 30 days of purchase. This covers compressor, heat exchanger, and blower motor defects. Labor and refrigerant are not included, so repair costs vary by location and technician. Registration is straightforward but required, so keep documentation accessible.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU54,000
Heating BTU120,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)48.000000
FeatureSpec
ConfigurationDownflow/Horizontal
Liquid Line3/8"
Suction Line1 1/8"
Tonnage5 Ton
StyleA-Coil
Height38.25"
Width35.5"
Depth35.5"
ResourcesGoodman Brochure Goodman Specifications Goodman Installation Manual Goodman Warranty Information Goodman Service Instructions Goodman Kit Instructions Goodman Parts Manual 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 Number7368845
Airflow DirectionDownflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE96%
Blower MotorVariable Speed - ECM
Maximum CFM2000
Energy StarYes
Burner StagesTwo
Fuel TypePropane, Natural Gas
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size50 amps
Min. Breaker Size29.6 amps
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

What's the difference between 16 SEER and 15 SEER cooling? +
SEER measures seasonal cooling efficiency, so 16 SEER means approximately 6-7% better energy performance than 15 SEER. On a typical 3,000-hour cooling season, you'll see noticeable savings. The difference compounds over 15-20 year equipment lifespan, making 16 SEER worth the modest price premium.
Can I install this myself if I'm handy? +
Feasible for experienced DIYers with EPA certification (for refrigerant handling), but challenging without HVAC background. Line charging, electrical connections, and ductwork sealing require precision. Most jurisdictions require licensed installation for warranty validity and code compliance. Hiring a pro typically costs $1,500-2,500 total.
How does 96% AFUE compare to modern high-efficiency furnaces? +
96% AFUE is excellent for the price point. Top-tier models reach 98.5% AFUE but cost 40-60% more. In moderate climates, the 2.5% efficiency gap translates to roughly $60-80 annual savings on heating bills, making upgrade economics unclear unless replacing 75-80% AFUE equipment.
Should I buy this or a higher SEER rating? +
Compare 16 SEER (this unit) versus 18-21 SEER competitors. Higher ratings cost $1,000-2,500 more but save 12-25% on cooling energy. Payback ranges 8-15 years depending on climate and usage. If you plan to stay 10+ years and live in hot regions, premium SEER tiers make sense.
What if registration fails or I miss the 30-day window? +
Contact Goodman directly with proof of purchase. While late registration may complicate claims, most dealers work with manufacturers on coverage. Don't skip registration entirely, as it's your warranty proof. Online registration takes 5 minutes.

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