Independent Review · Updated June 2026

2 Ton 15 SEER Goodman Air Conditioner with Horizontal 21" Cased Coil

Budget-friendly 2-ton coil delivers solid 16 SEER efficiency at entry-level pricing

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
2 Ton 15 SEER Goodman Air Conditioner with Horizontal 21
Current Price
$115
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This 2-ton horizontal cased coil is ideal for budget-conscious contractors and homeowners replacing older systems in smaller homes or apartments. At $115, the 16 SEER rating and Energy Star certification deliver competitive efficiency without breaking the bank.

Review

The Goodman 2-ton horizontal cased coil represents a pragmatic choice in the entry-level efficiency segment. Priced at $115, this A-coil design caters to contractors and homeowners seeking straightforward performance without premium pricing. Its horizontal orientation makes it particularly valuable in tight installation spaces where standard vertical coils won't fit. Goodman's reputation for service-friendly designs backs this unit, making it a dependable middle-ground option in the replacement market.

Performance metrics tell a solid story here. The unit delivers 23,600 BTU of cooling capacity while maintaining a 16 SEER efficiency rating, surpassing the federal minimum and earning Energy Star certification. The scroll compressor operates at 71.5 dB, remaining relatively quiet for residential settings. Operating on standard 208/230V single-phase power with modest electrical requirements (12.4 to 20 amp breaker sizing), this coil integrates cleanly into most existing residential electrical panels. The 3/8 inch liquid line and 3/4 inch suction line sizes match standard piping configurations.

Pros & Cons

Pros

  • 16 SEER efficiency exceeds federal minimum standards and qualifies for Energy Star
  • 23,600 BTU cooling capacity properly sized for 2-ton systems in residential applications
  • Horizontal A-coil design fits tight spaces where vertical configurations won't work
  • Scroll compressor technology provides reliable, quiet operation at 71.5 dB
  • 10-year warranty with online registration offers solid peace of mind protection

Cons

  • Single-stage compressor limits efficiency gains during partial-load operation
  • 71.5 dB noise level is audible, though not excessive for standard residential use
  • R410A refrigerant requires proper handling and certified technicians during service

Who Should Buy

Best For

Contractors managing multiple residential replacements and homeowners upgrading 15+ year old systems in 2-ton applications will appreciate the straightforward reliability and low upfront cost. This coil makes sense for split systems where the condenser is already Goodman-compatible.

Consider Alternatives If

High-efficiency seekers targeting 18+ SEER ratings should look at variable-capacity units, and those prioritizing whisper-quiet operation may find the 71.5 dB level bothersome in bedrooms or quiet spaces.

2 Ton 15 SEER Goodman Air Conditioner with Horizon
$115
Buy at HVACDirect →

Installation

Installation complexity is moderate. The 32.25 inch height, 29 inch width and depth require careful space planning, though horizontal orientation provides flexibility. The unit ships with 50 feet of suction line insulation at 3/4 inch thickness, streamlining typical installations. Technicians need EPA certification for R410A refrigerant handling. Online Supply provides comprehensive documentation including installation manuals and kit instructions. Electrical connections remain straightforward given the single-phase requirement.

Warranty & Reliability

Goodman backs this coil with a 10-year warranty upon online registration. Coverage addresses manufacturing defects and component failures typical in residential service calls. Registration is straightforward and required to activate the full term. This duration matches industry standards for coil components. Parts availability through Online Supply and authorized Goodman distributors ensures replacement components remain accessible throughout the warranty period.

Specifications

SKULS38343850
Brand/ManufacturerOnline Supply
Cooling BTU23,600
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)71.5
Weight (in lbs)22.000000
FeatureSpec
ConfigurationHorizontal
Liquid Line3/8"
Suction Line3/4"
Tonnage2 Ton
StyleA-Coil
Height32.25"
Width29"
Depth29"
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.
ReplacesGSX16S241
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size20 amps
Min. Breaker Size12.4 amps
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

What size air conditioner condenser pairs with this 2-ton coil? +
This coil matches 2-ton Goodman condensers. The SKU replaces GSX16S241 units. Line sizes are 3/8 inch liquid and 3/4 inch suction. Verify your existing condenser tonnage before ordering to ensure proper system matching and optimal efficiency performance.
Can this horizontal coil fit in an attic or crawlspace installation? +
Yes, the horizontal A-coil design specifically targets confined spaces. At 32.25 inches tall and 29 inches square, measure your space carefully. The configuration allows installation in attics with 3-foot clearance and standard crawlspaces. Ensure adequate airflow around the coil for proper heat transfer.
Does this coil meet current efficiency standards for rebates? +
The 16 SEER rating and Energy Star certification position this coil favorably for many utility rebates. However, rebate eligibility varies by region and often requires the entire system (coil plus condenser) to meet minimum ratings. Check with your local utility before purchasing.
How does 16 SEER compare to newer coils on the market? +
16 SEER represents solid mid-range efficiency. Newer units reach 18-22 SEER with variable-capacity compressors, but cost significantly more. This Goodman delivers reliable performance at budget pricing, making it excellent for cost-conscious replacements where maximum efficiency doesn't justify premium pricing.
What happens if I register the warranty online? +
Online registration activates the full 10-year coverage. Without registration, warranty terms are substantially reduced. Registration is typically quick and free through Goodman's website, requiring purchase documentation and coil serial number information.

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