Independent Review · Updated June 2026

3.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

Budget-friendly 3.5-ton combo system with solid 80% AFUE and ENERGY STAR certification.

7.8
IndustrialRank Score
Efficiency
7.9
Reliability
7.6
Value
8.3
Installation
8.1
Warranty
7.8
3.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
$2071
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system delivers reliable heating and cooling at an attractive $2,071 price point for homeowners upgrading older equipment or contractors seeking affordable split systems. The 80% AFUE furnace and 14 SEER air conditioner provide respectable efficiency without premium pricing, though the single-stage cooling limits seasonal performance.

Review

The Goodman 3.5-ton upflow system represents a pragmatic entry point into modern HVAC equipment. At $2,071, it undercuts premium brands while delivering matched heating and cooling components with solid engineering credentials. This unit targets homeowners replacing 15-year-old systems and contractors managing tight project budgets. The AHRI certificate number 204633307 confirms proper component matching, a critical detail often overlooked in budget installations.

Performance metrics show competent rather than exceptional efficiency. The furnace delivers 80,000 BTU heating output at 80% AFUE, generating adequate warmth for moderate climates but trailing modern condensing furnaces by 15 percentage points. Cooling capacity reaches 42,000 BTU with a 14 SEER rating and variable-speed scroll compressor. The two-stage furnace burner and single-stage condenser create an asymmetrical pairing, where heating scales responsively but cooling remains on-off during light loads.

Pros & Cons

Pros

  • Excellent value at $2,071 for a matched 3.5-ton heating and cooling pair
  • 80,000 BTU furnace with two-stage burner provides efficient heating and responsive temperature control
  • ENERGY STAR qualified system with 16 SEER1 rating exceeds basic efficiency standards
  • Variable-speed blower motor improves comfort and reduces energy waste versus fixed-speed alternatives
  • 10-year warranty with online registration covers compressor and parts comprehensively

Cons

  • Single-stage condenser limits cooling efficiency during partial-load conditions common in spring and fall
  • 80% AFUE furnace trails modern 95% AFUE models by 15 percentage points, increasing long-term heating costs
  • No cold-climate capability noted, limiting use in regions below freezing for extended periods

Who Should Buy

Best For

Homeowners in mild to moderate climates replacing aging 10+ year old systems and prioritizing upfront cost savings over premium efficiency. Contractors working on budget-conscious residential replacements where ENERGY STAR compliance satisfies local code requirements will appreciate the straightforward compatibility and AHRI certification.

Consider Alternatives If

Anyone in cold climates needing efficient heating or seeking 15+ year cost optimization through high-efficiency equipment should look at 95% AFUE furnaces paired with 16+ SEER condenser units instead.

3.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Fu
$2071
Buy at HVACDirect →

Installation

Installation requires standard HVAC practices with no unusual complexity. The upflow configuration fits typical basements and utility closets with 30-inch height, 24.5-inch width, and 21-inch depth dimensions. Metal flue exhaust piping is mandatory. Electrical demands range from 23.5 to 40 amp breaker capacity at 208/230V single phase, typical of residential service panels. Refrigerant lines run 50 feet maximum, supporting moderate-distance outdoor unit placement.

Warranty & Reliability

The 10-year parts and compressor warranty, activated through online registration, provides mid-range protection typical of Goodman equipment. This covers component failures but excludes wear items and labor, meaning homeowners pay technician fees for service calls. Registration is straightforward and highly recommended to unlock full coverage, especially critical given the system's budget positioning.

Specifications

SKULS381183850
Brand/ManufacturerOnline Supply
Cooling BTU42,000
Heating BTU80,000
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
AHRI Certificate Number204633307
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorVariable Speed
Maximum CFM2000
ConfigurationUpflow / Downflow
Burner StagesTwo
Fuel TypePropane, Natural Gas
Height30"
Width24.5"
Depth21"
ResourcesCAPF Installation Manual CAPF 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.
Energy StarYes
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size40 amps
Min. Breaker Size23.5 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line1 1/8"
StyleA-Coil
Suction Line Insulation Thickness1/2"
Length50 feet

Frequently Asked Questions

Does this system qualify for tax credits or rebates? +
ENERGY STAR certification helps, but the 80% AFUE furnace and 14 SEER cooling fall short of premium rebate thresholds requiring 95%+ AFUE or 16+ SEER. Check state and utility programs, as some offer modest incentives for ENERGY STAR equipment regardless of tier.
Can I install this myself, or do I need a licensed technician? +
Licensed installation is strongly advised. Refrigerant handling, electrical work, and gas line connections require EPA certification and local permitting. DIY installation voids warranty and likely violates building codes in most jurisdictions.
How much money will I save on heating compared to an older furnace? +
An 80% AFUE furnace converts four dollars to five dollars of every heating dollar into warmth, versus 60-65% AFUE in 20-year-old units. Savings depend on fuel costs and climate but typically range 15-20% annually in moderate heating regions.
Why is the cooling rated 14 SEER but specs list 16 SEER1? +
SEER1 uses updated testing standards and typically runs 2-3 points higher than legacy SEER measurements. The 14 SEER rating is the practical seasonal efficiency; 16 SEER1 reflects newer laboratory protocols.
What happens to my warranty if I register online? +
Online registration activates the full 10-year parts and compressor warranty. Without registration, coverage drops to limited manufacturer protection. Registration takes five minutes and is essential for resale value.

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