Independent Review · Updated June 2026

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

Solid mid-range 3-ton cooling and 80K BTU heating for budget-conscious homeowners

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
$2700
Check Price at HVACDirect → Shop Now at HVACDirect
Authorized dealer · Full manufacturer warranty
// Bottom Line
This Goodman system works best for homeowners upgrading older equipment who want reliable performance without premium pricing. The 14 SEER cooling and 80% AFUE heating deliver solid efficiency gains, and the $2,700 price point makes it accessible for many residential applications, especially in moderate climates.

Review

This Goodman 3-ton split system combines an 80,000 BTU furnace and 36,000 BTU air conditioner into a practical solution for homeowners seeking reliable climate control without luxury-tier spending. Manufactured by Online Supply with an AHRI certificate number 204633302, it represents the middle ground in the market, offering proven Goodman components in a straightforward upflow A-coil configuration. The $2,700 price reflects its solid-but-not-premium positioning among contractors and DIY installers familiar with Goodman's reputation for durability.

Performance specs reveal competent engineering for typical residential applications. The 36,000 BTU condenser achieves 14 SEER1 efficiency using R410A refrigerant and a scroll compressor, while the furnace delivers 80% AFUE through two-stage gas burners. The variable-speed blower reaches 2,000 CFM maximum airflow, adapting to home conditions rather than running constantly. At 73 dB, operation is noticeable but acceptable for basements or utility closets. Electrical requirements stay modest at 120V single-phase with a 30-amp maximum breaker, simplifying retrofit installations.

Pros & Cons

Pros

  • 14 SEER cooling efficiency beats baseline 13 SEER units by approximately 8 percent, translating to measurable energy savings
  • Two-stage burner adjusts heating output for better comfort and lower fuel consumption during mild weather
  • Variable-speed blower motor cycles based on demand, reducing runtime and electricity usage compared to single-speed alternatives
  • Metal exhaust flue requirement is standard industry practice, with 30 feet of suction line insulation included for simplified installation
  • 10-year warranty with online registration covers parts and compressor, providing reasonable peace of mind for residential use

Cons

  • 80% AFUE is acceptable but not exceptional, lacks the 90-plus AFUE efficiency of high-end condensing furnaces
  • Single-stage air conditioning compressor means no variable capacity for mild days, unlike two-stage or inverter-driven units
  • 73 dB noise level is moderately loud, higher than premium variable-speed systems that operate closer to 65-68 dB
  • Not Energy Star certified, indicating it meets minimum standards rather than above-average efficiency benchmarks

Who Should Buy

Best For

This system suits homeowners in moderate climate zones replacing 10-plus year old equipment who prioritize reliability and upfront affordability. It's ideal for properties where utility costs are secondary to avoiding expensive emergency repairs or where cooling loads remain moderate year-round.

Consider Alternatives If

Skip this unit if you live in extreme heat regions demanding maximum cooling efficiency, need the quietest operation, or want premium warranties exceeding 10 years.

3 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furn
$2700
Buy at HVACDirect →

Installation

Installation follows conventional practices for upflow systems in basements or crawlspaces. The A-coil design integrates above the furnace, requiring vertical space around 34.5 inches high by 21 inches wide. Metal exhaust flue installation is mandatory for safety compliance. Pre-installed 30 feet of 3/4-inch suction line insulation expedites field connections, reducing labor time compared to older systems requiring manual insulation wrapping. Licensed HVAC technicians typically complete full installation in 4-6 hours.

Warranty & Reliability

Goodman provides 10-year parts and compressor coverage upon online registration, which requires minimal effort through their website. This matches industry standard for mid-tier systems and protects against manufacturing defects and component failures. Registration is important, as non-registered units default to shorter coverage. The warranty excludes wear items like capacitors and contactors under heavy use, but covers the sealed compressor and major components.

Specifications

SKULS38343830
Brand/ManufacturerOnline Supply
Cooling BTU36,000
Heating BTU80,000
RefrigerantR410A or R22
Electrical120 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73
Weight (in lbs)35.000000
FeatureSpec
Energy StarNo
SEER1 (Efficiency)14
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Line3/8"
Suction Line3/4"
Liquid Valve Size3/8"
Suction Valve Size3/4"
Max Breaker Size30 Amps
Min. Breaker Size18.7 Amps
Tonnage3.5 Ton
Height34.5"
Width21"
Depth28.75"
ResourcesGoodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Technical Information Goodman User Information Goodman 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.
ConfigurationUpflow/Horizontal
StyleA-Coil
AHRI Certificate Number204633302
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementMetal
Furnace Efficiency / AFUE80%
Blower MotorVariable Speed
Maximum CFM2000
Burner StagesTwo
Fuel TypePropane, Natural Gas
Suction Line Insulation Thickness3/4"
Length30 feet

Frequently Asked Questions

What's the actual cooling capacity in a 3-ton system? +
This unit rates at 36,000 BTU cooling, which equals 3 tons exactly (1 ton equals 12,000 BTU). The SKU lists 3.5 tonnage, referring to heating capacity. Don't confuse the two, as cooling capacity of 36,000 BTU defines the AC side's ability to remove heat from your home.
Can I use R22 refrigerant instead of R410A? +
The specs indicate compatibility with both R410A and R22, though R410A is the standard choice for new installations. If you're retrofitting an older R22 system, consult your technician, as mixing refrigerants or improper conversion voids warranties and creates safety risks. R410A is recommended for this unit.
How does 14 SEER compare to other systems at this price? +
14 SEER meets mid-range expectations and beats base-model 13 SEER units by roughly 8 percent energy savings. However, premium systems reach 16-18 SEER. For most moderate climates, 14 SEER delivers sufficient savings without premium pricing, making it cost-effective over 10-15 years of operation.
Is 80% AFUE heating efficient enough for cold climates? +
80% AFUE is acceptable for mild to moderate climates but inadequate for harsh winters. High-efficiency condensing furnaces achieve 90-96% AFUE in extreme cold regions, reducing heating bills significantly. For climates with extended heating seasons, consider upgrading to higher AFUE units despite increased upfront costs.
What does the 10-year warranty actually cover? +
The warranty covers parts and the compressor against manufacturing defects when registered online. It excludes labor, wear items, and damage from improper installation or maintenance. Registration is required within 10 days of installation, so don't skip that step or you'll lose coverage.

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