Independent Review · Updated June 2026

5 Ton 15 SEER 80% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Solid mid-tier 5-ton system with 80% furnace efficiency and 18 SEER cooling.

7.8
IndustrialRank Score
Efficiency
7.5
Reliability
8.2
Value
7.9
Installation
8.4
Warranty
8.0
5 Ton 15 SEER 80% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system works well for homeowners in moderate climates who need reliable heating and cooling without premium efficiency costs. It's particularly suited for properties where an upflow configuration fits the existing installation space and budget matters.

Review

The Goodman 5-ton gas furnace and air conditioner system is a middle-market workhorse designed for contractors and homeowners who prioritize reliability over cutting-edge efficiency. With 100,000 BTU heating capacity and 57,000 BTU cooling output, this upflow configuration fits standard equipment closets and attics. The SKU DSXC180601 represents years of proven Goodman engineering, offering dual-stage heating and cooling without the premium price tag associated with high-efficiency alternatives.

Performance specs reveal a capable mid-tier system. The 80% AFUE furnace efficiency means for every dollar spent on natural gas or propane, 80 cents converts to usable heat. Cooling performance hits 18 SEER, a respectable efficiency rating that justifies the system's positioning. The two-stage compressor and variable-speed blower motor running up to 2000 CFM reduce on-off cycling, which lowers wear on components and keeps energy bills reasonable. Electrical requirements of 208/230V single-phase with a 36.7 to 60-amp breaker range fit most residential service panels.

Pros & Cons

Pros

  • Two-stage compressor and burner provide efficient operation at part-load conditions, reducing runtime and energy costs
  • Variable-speed blower motor maximizes comfort by adjusting airflow based on demand, capping at 2000 CFM
  • 18 SEER cooling efficiency outperforms basic 13-14 SEER units while remaining affordable
  • Scroll compressor design offers proven durability and quiet operation at 74 dB
  • 10-year warranty with online registration provides solid protection against defects

Cons

  • 80% AFUE furnace efficiency lags behind 95%+ high-efficiency models, meaning higher heating costs in cold climates
  • Not Energy Star certified, missing qualification threshold for utility rebates in many regions
  • 57,000 BTU cooling capacity is on the lower end for a 5-ton system, suggesting potential undersizing in very hot climates
  • Requires metal exhaust flue, which adds installation complexity and cost in some homes

Who Should Buy

Best For

Homeowners in mixed climates (zones 4-7) seeking a balanced heating and cooling system that won't strain their budget. This unit makes sense for replacing older equipment or building new when the installation space accommodates an upflow A-coil design.

Consider Alternatives If

Buyers in harsh winter climates should look at 90%+ AFUE furnaces instead, and those seeking maximum cooling should consider higher-tonnage units with better cooling BTU ratings.

5 Ton 15 SEER 80% AFUE 100,000 BTU Goodman Gas Fur
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Installation

This upflow A-coil configuration requires vertical installation in attics or equipment closets, with dimensions of 38.25 inches tall by 35.5 inches wide and deep. Installation demands proper metal exhaust fluing that connects to exterior venting. Line sets use 3/8-inch liquid and 7/8-inch suction connections with sweat-type valve connections. Proper refrigerant charging and commissioning are essential for the 18 SEER performance rating to hold.

Warranty & Reliability

Goodman covers this system for 10 years against manufacturing defects, provided you register online within 30 days of purchase. This protection applies to the compressor, sealed components, and refrigerant circuit. Registration is straightforward and extends your peace of mind through a decade of operation, though coverage specifics should be verified with the full warranty documentation.

Specifications

SKUDSXC180601
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)296.000000
FeatureSpec
ConfigurationUpflow/Horizontal
Liquid Line3/8"
Suction Line7/8"
Tonnage5 Ton
StyleA-Coil
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.
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorVariable Speed
Maximum CFM2000
Burner StagesTwo
Fuel TypePropane, Natural Gas
Energy StarNo
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
Valve TypeSweat

Frequently Asked Questions

How does 80% AFUE affect my heating bills compared to a 95% efficient furnace? +
An 80% AFUE furnace loses 20 cents per dollar to exhaust, while 95% AFUE loses only 5 cents. In a cold climate heating 5000 degree-days annually, expect roughly 10-15% higher heating costs. The difference narrows in milder climates, making this unit more practical in zones 4-7.
Can this system replace my old 3-ton equipment in an upflow closet? +
The 5-ton upgrade is physically possible if your closet measures at least 38.25 inches tall and 35.5 by 35.5 inches wide. However, verify your ductwork can handle the increased airflow and that your electrical panel supports the 36.7 to 60-amp breaker requirement.
Is 18 SEER cooling sufficient for hot summers? +
18 SEER is solid but not premium. For 5-ton capacity, expect 57,000 BTU cooling output, which suits moderate heat loads. In extreme climates (Phoenix, Houston), consider 20+ SEER units or verify load calculations to avoid undersizing issues.
How does this Goodman compare to similar Lennox or Carrier systems? +
Goodman typically undercuts premium brands by 15-25% while maintaining comparable component quality and warranty coverage. Lennox and Carrier offer more efficiency tiers and quieter operation, justifying higher prices for performance-focused buyers.
Does online registration for the 10-year warranty cost extra? +
No, registration is free and takes minutes. Without it, your coverage defaults to a shorter period, so complete it immediately after installation to secure full protection.

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