Independent Review · Updated June 2026

3 Ton 18 SEER Two Stage Goodman Air Conditioner Condenser

18 SEER two-stage efficiency meets Goodman's proven reliability at competitive pricing

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 18 SEER Two Stage Goodman Air Conditioner Condenser
Current Price
$3052
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This 3-ton condenser delivers solid efficiency and dependable performance for homeowners in moderate to warm climates seeking a mid-range option. It's particularly well-suited for replacement projects where single-stage systems are being upgraded to two-stage technology without premium pricing.

Review

The Goodman DSXC180361 represents a common-sense choice in mid-market air conditioning. At $3,052, this 3-ton condenser slots between budget bare-bones models and premium brands, offering two-stage compressor technology that genuinely impacts utility bills. Goodman has built contractor loyalty through straightforward reliability rather than flashy features. This unit continues that philosophy, delivering 35,000 BTU cooling capacity with Energy Star certification and a respectable 18 SEER1 efficiency rating for residential retrofit work.

Performance metrics tell the story here. The 18 SEER1 rating means real energy savings compared to 13-14 SEER single-stage predecessors. That two-stage scroll compressor runs at reduced capacity during partial-load conditions, which is most of the cooling season in moderate climates. The 71 dB output reflects this efficiency, operating quieter than many competitors because it's not hammering full-speed all day. Refrigerant R410A and sweat valve connections align with industry standards, though techs need proper certification for installation.

Pros & Cons

Pros

  • 18 SEER1 rating exceeds Energy Star standards, reducing cooling costs by 15-20 percent versus older single-stage units
  • Two-stage scroll compressor operates at reduced capacity during mild days, lowering noise and extending equipment lifespan
  • 71 dB noise level ranks among quieter condensers in its class for residential applications
  • Compact 35.5-inch square footprint and 228-pound weight simplify rooftop or slab installations
  • 10-year compressor and parts warranty with online registration provides solid protection at this price point

Cons

  • 208/230V single-phase power requirement limits compatibility on properties with three-phase service
  • 71 dB output still exceeds some premium competitors, notable during high-stage cooling cycles
  • Sweat valve connections require brazing skills, adding labor costs if installer lacks certification

Who Should Buy

Best For

Contractors replacing aging single-stage systems for budget-conscious residential customers, and homeowners in warm climates wanting efficiency gains without ultra-premium equipment costs. This unit strikes a practical balance between performance and affordability for standard 3-ton applications.

Consider Alternatives If

Properties with three-phase electrical service should look elsewhere, and buyers seeking whisper-quiet operation below 65 dB may prefer higher-end competitors.

3 Ton 18 SEER Two Stage Goodman Air Conditioner Co
$3052
Buy at HVACDirect →

Installation

Installation complexity sits at moderate level. The unit requires 208/230V single-phase power with 21.9 to 35 amp breaker capacity, standard for residential applications. Sweat valve connections demand brazing expertise, which adds labor costs if your installer lacks certification. Dimensions of 35.5 by 35.5 by 38.25 inches fit most rooftop or slab pads without structural modifications. Plan for proper refrigerant evacuation and line-set connections per EPA standards.

Warranty & Reliability

Goodman's 10-year parts and compressor warranty with online registration provides solid protection at this price point. Registration is straightforward but required to activate full coverage. This matches competitor offerings and covers manufacturing defects, though labor and refrigerant are buyer responsibility. For a $3,000 investment, this warranty cushion justifies the registration effort.

Specifications

SKUDSXC180361
Brand/ManufacturerGoodman
Cooling BTU35,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)71
Weight (in lbs)228.000000
FeatureSpec
Energy StarYes
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size35 amps
Min. Breaker Size21.9 amps
Tonnage3 Ton
Valve TypeSweat
Height38.25"
Width35.5"
Depth35.5"
ResourcesGoodman Specifications Goodman Installation 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.

Frequently Asked Questions

How does 18 SEER1 translate to actual monthly cooling bills? +
An 18 SEER unit uses roughly 15-20 percent less energy than a 13 SEER baseline system in the same climate. For a 3-ton condenser running 500 hours annually, expect $150-250 in annual savings at typical regional electricity rates, depending on local HVAC operation patterns and climate severity.
Can I install this myself if I have basic HVAC knowledge? +
EPA regulations prohibit self-installation of refrigerated systems. You must hire a licensed technician certified for R410A handling and brazing work. Professional installation costs typically range $1,200-2,000 depending on local labor rates and existing line-set condition.
What's the real-world advantage of two-stage cooling? +
Two-stage operation reduces compressor cycling and noise during mild weather when full capacity isn't needed. This extends equipment life, improves humidity control, and lowers utility bills. Most homeowners notice quieter operation and consistent comfort compared to single-stage units.
How does this compare to Carrier or Lennox models at similar price points? +
Goodman trades brand prestige for value. This unit matches efficiency ratings of Carrier's Performance series but costs $400-600 less. Lennox offers better warranties but charges premium pricing. Goodman's strength lies in contractor accessibility and parts availability.
What happens if my equipment fails during year five? +
The 10-year warranty covers compressor and parts replacement at no cost. However, you pay labor and refrigerant charges. Without online registration, coverage is five years, so register immediately after installation to preserve full protection.

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