Independent Review · Updated June 2026

4 Ton 17.5 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow

Budget-friendly 4-ton combo system with solid 80% efficiency and Energy Star certification

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
4 Ton 17.5 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow
Current Price
$2053
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system delivers honest, no-frills heating and cooling for homeowners prioritizing affordability over premium features. At $2,053, it's an excellent choice for budget-conscious buyers in moderate climates who want Energy Star efficiency without paying for ultra-high SEER ratings.

Review

Goodman's 4-ton gas furnace and heat pump system sits squarely in the practical middle of the HVAC market. At $2,053, this unit combines straightforward engineering with Energy Star certification, appealing to contractors and homeowners who value reliability over cutting-edge performance. The upflow configuration works in most residential installations, and the two-stage design on both heating and cooling sides shows Goodman didn't oversimplify this offering.

Performance specs reveal a competent workhorse rather than a premium system. The furnace delivers 47,000 BTU heating output at 80% AFUE using two-stage burner technology, while the cooling side matches with 47,000 BTU at 18 SEER1 through a scroll compressor and two-stage condenser. The variable-speed blower motor maxes out at 2,000 CFM and keeps noise to 73 dBA, meaning you get comfortable operation without the premium price of higher-efficiency tiers.

Pros & Cons

Pros

  • 80% AFUE furnace with two-stage burner provides reliable, efficient heating for natural gas or propane
  • 18 SEER cooling efficiency qualifies as Energy Star, saving on utility costs over time
  • Two-stage condenser and variable-speed blower motor reduce noise (73 dBA) and improve comfort
  • Compact 30 by 21 by 21 inch dimensions fit standard upflow/downflow installations
  • 10-year warranty with online registration covers parts and labor peace of mind

Cons

  • 80% AFUE is baseline modern efficiency, not best-in-class (90%+ systems available at higher price)
  • 18 SEER1 lags behind premium units (20+ SEER), meaning higher cooling costs in hot climates
  • Requires metal exhaust flue, adding installation complexity and cost in some homes

Who Should Buy

Best For

Homeowners in moderate climates replacing aging furnace and air conditioner systems who want reliable performance and Energy Star savings without premium pricing. Ideal for those comfortable with standard efficiency levels and prioritizing upfront cost savings.

Consider Alternatives If

Buyers in extreme-heat or extreme-cold climates needing maximum efficiency ratings, or homeowners planning to stay 15+ years who'd benefit more from higher-SEER equipment despite higher initial investment.

4 Ton 17.5 SEER 80% AFUE 80,000 BTU Goodman Gas Fu
$2053
Buy at HVACDirect →

Installation

This system requires standard split-system installation with proper refrigerant lines and electrical setup. The metal exhaust flue requirement for the furnace adds complexity compared to some condensing models, potentially increasing labor costs. Units run on 208/230V single-phase power with breaker requirements between 29.3 and 50 amps. Most experienced HVAC technicians complete installation in one day.

Warranty & Reliability

Ten-year parts and labor warranty protects against defects when registered online. This is solid coverage for mid-tier equipment, covering compressor, heat exchanger, and blower motor failures. Actual coverage terms require checking registration requirements, but online activation is typically simple for homeowners.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU47,000
Heating BTU47,000
RefrigerantR410A or R22
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)48.000000
FeatureSpec
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 Number204633302
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorVariable Speed
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypePropane, Natural Gas
Height30"
Width21"
Depth21"
ResourcesCAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Product FeaturesRebate Available, Two Stage Condenser
Energy StarYes
SEER1 (Efficiency)18
Condenser StagesTwo Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size1 1/8"
Max Breaker Size50 amps
Min. Breaker Size29.3 amps
Tonnage5 Ton
Valve TypeSweat
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

What's the difference between this 18 SEER1 unit and higher-efficiency options? +
This system delivers respectable efficiency but trails premium equipment. An 18 SEER1 rating means roughly 10-15% higher cooling costs versus 20+ SEER models in hot climates. However, you'll recover roughly $400-800 annually in energy savings versus basic 14 SEER units, making it worthwhile if staying long-term.
Can this handle both natural gas and propane? +
Yes, the two-stage burner accommodates both fuel types with proper conversion kit installation. Most contractors can switch fuel source, but confirm your installer has propane expertise if that's your fuel. Setup requires adjusting burner orifices and verifying proper venting.
Is 80% AFUE sufficient for cold climates? +
80% AFUE is acceptable but not ideal for harsh winters. In temperatures consistently below 20 degrees Fahrenheit, you'll pay noticeably more per BTU than with 90%+ AFUE systems. Consider upgrading furnace efficiency if your area averages sub-zero winters regularly.
How does this compare to higher-priced Goodman or Lennox equipment? +
This uses proven two-stage components but lacks premium features like variable-capacity cooling or condensing efficiency. Expect tighter temperature swings and longer runtimes than $3,500+ systems. Real difference appears during cooling season in 90-degree-plus weather.
What does the 10-year warranty actually cover? +
Covers manufacturing defects in compressor, blower, and heat exchanger components. Labor included with online registration. Excludes wear items, refrigerant, and damage from improper installation or maintenance. Check registration details before purchase.

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