Independent Review · Updated June 2026

5 Ton 14 SEER 97% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal

High-efficiency horizontal furnace and AC combo for tight spaces and propane applications.

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
5 Ton 14 SEER 97% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal
Current Price
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// Bottom Line
This Goodman system excels for contractors installing in attics, crawlspaces, or utility closets where horizontal configuration is essential. The 97% AFUE furnace and variable-speed blower deliver exceptional heating efficiency, while the 5-ton, 57,000 BTU cooling capacity handles mid-sized homes with modulating burner precision.

Review

Goodman's 5-ton horizontal furnace and air conditioner combo addresses a specific market gap, serving contractors who need dependable equipment for tight installations. This system bundles a 120,000 BTU furnace with proportional cooling capacity in a configuration measuring just 24.5 inches tall, 26 inches wide, and 21.125 inches deep. It's commonly found in attic retrofits, crawlspace replacements, and utility closet installations where vertical equipment won't fit. The horizontal design, right-side flue location, and plastic exhaust venting simplify ductwork routing and installation logistics.

The 97% AFUE rating represents genuine heating efficiency, meaning 97 cents of every heating dollar reaches conditioned space. Paired with the variable-speed ECM blower capable of 2000 CFM maximum airflow, the system adapts to your home's thermal demands. The modulating burner stages eliminate the energy waste of simple on-off cycles. Cooling delivers 57,000 BTU capacity with R410A refrigerant, though the single-stage condenser means the system runs at full capacity or stops, missing the efficiency sweet spot during spring and fall shoulder seasons.

Pros & Cons

Pros

  • 97% AFUE furnace efficiency significantly reduces heating costs year-round
  • Modulating burner stages provide precise temperature control and reduced short-cycling
  • Variable-speed ECM blower motor adjusts airflow from 0 to 2000 CFM for comfort and efficiency
  • Horizontal configuration fits tight spaces like attics and crawlspaces with 24.5 inch height
  • Accepts both natural gas and propane, offering fuel flexibility for rural or off-grid applications
  • PVC/plastic exhaust venting reduces installation complexity and cost compared to metal flue requirements

Cons

  • SEER rating discrepancy, specs list both 14 SEER (title) and 16 SEER1, creating confusion about actual cooling efficiency
  • Not Energy Star certified despite high efficiency ratings, potentially disqualifying from utility rebates in some regions
  • Single-stage condenser limits cooling optimization during partial-load conditions, typical of budget-tier systems
  • 73 dBA noise level runs louder than premium systems, noticeable in bedroom locations or quiet neighborhoods

Who Should Buy

Best For

Contractors retrofitting existing horizontal systems or building new custom HVAC installations in space-constrained applications like attics and crawlspaces. Homeowners in propane-heated rural areas seeking a matching air conditioning system will appreciate the dual-fuel capability and integration simplicity.

Consider Alternatives If

Buyers prioritizing quiet operation or maximum cooling efficiency should explore higher-SEER units. Those dependent on Energy Star rebates may find better value in certified alternatives.

5 Ton 14 SEER 97% AFUE 120,000 BTU Goodman Gas Fur
$0
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Installation

This horizontal unit requires right-side flue clearance and PVC/plastic exhaust venting, both contractor-friendly specifications. The 208/230V single-phase 60Hz electrical requirement needs 32.8 to 50-amp service, standard for most residential panels. Refrigerant lines include 3/8 inch liquid and 7/8 inch suction lines with 3/4 inch insulation thickness. Pre-charged factory setup reduces field refrigerant work, streamlining installation timelines for experienced technicians.

Warranty & Reliability

The 10-year parts warranty requires online registration to activate, a common Goodman practice. Coverage includes compressor, heat exchanger, and condenser components. Registration is straightforward and delivers substantial protection. However, labor costs during warranty repair remain your responsibility, a standard industry limitation on budget-tier equipment.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU57,000
Heating BTU120,000
RefrigerantR410A
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)30.000000
FeatureSpec
AHRI Certificate Number7424268
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Product FeaturesRebate Available
Furnace Efficiency / AFUE97%
Blower MotorVariable Speed - ECM
Maximum CFM2000
ConfigurationHorizontal
Flue LocationRight
Energy StarNo
Burner StagesModulating
Fuel TypePropane, Natural Gas
Height24.5"
Width26"
Depth21.125"
ResourcesCHPF Installation Manual CHPF 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)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size50 amps
Min. Breaker Size32.8 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

What's the difference between the 14 SEER and 16 SEER1 ratings listed in the specs? +
SEER2 is the newer, more rigorous efficiency standard replacing SEER. If the 16 rating is SEER2 and 14 is legacy SEER, the system is stronger than the title suggests. Contact the seller for clarification before purchase, as this directly impacts cooling operating costs.
Can this system use propane in an existing natural gas installation? +
The unit accepts both fuels, but conversion requires a qualified technician to swap burner components and adjust gas pressure regulators. This typically costs $300 to $500. Never attempt fuel switching without professional expertise, as improper adjustment creates safety hazards.
How does the modulating burner save energy compared to single-stage burners? +
Modulating burners adjust flame intensity between high and low settings, matching heating output to actual demand. Single-stage systems cycle fully on and off repeatedly, wasting energy during restarts. Modulating reduces fuel consumption by 5 to 15 percent in typical usage.
Is a 5-ton system adequate for a 2500 square foot home? +
A 5-ton system handles approximately 2000 to 2500 square feet depending on insulation, climate zone, and ductwork efficiency. Have a Manual J calculation performed for your specific home. Undersized systems run continuously and fail during cold snaps; oversized systems short-cycle and waste energy.
What happens if I don't register the warranty online? +
Without registration, warranty coverage becomes invalid. Goodman requires proof of purchase and activation within 30 days of installation. Register immediately after setup to protect your investment, and keep the AHRI certificate number 7424268 for reference.

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