3.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system delivers respectable efficiency at an attractive price point for homeowners replacing aging equipment in moderate climates. The 96% AFUE furnace and 13 SEER condenser combo works well for homes prioritizing upfront cost savings over premium features, though it won't match higher-tier variable-speed systems.

Review

The Goodman 3.5 Ton Gas Furnace and Air Conditioner System represents a pragmatic choice in the mid-market HVAC space. This combination unit pairs an 80,000 BTU upflow furnace with a matching air conditioning condenser, designed for homes stepping up from aging single-stage equipment. Online Supply positions this as an honest performer that doesn't demand premium pricing while still delivering above-average efficiency ratings for its class.

Performance specs tell a practical story. The furnace achieves 96% AFUE, which translates to lower heating bills during winter months compared to standard 90% efficiency units. The air conditioning side delivers 13 SEER cooling efficiency with a single-stage reciprocating compressor rated at 42,000 BTU. The multi-speed blower motor provides adaptive comfort by adjusting CFM from low to the maximum 1,600 CFM depending on temperature demand, a feature that elevates this above basic single-speed alternatives.

Pros & Cons

Pros

96% AFUE gas furnace exceeds standard 90% efficiency by meaningful margin, reducing heating costs
13 SEER cooling rating meets mid-range efficiency expectations for split systems in this category
Multi-speed blower motor adapts to varying load conditions, improving comfort versus single-stage alternatives
80,000 BTU heating output handles moderate to large homes with adequate capacity
10-year parts warranty with online registration provides reasonable protection and peace of mind

Cons

Single-stage compressor means on/off cycling rather than modulated cooling, less efficient than two-stage units
75 dB noise level runs noticeably loud for outdoor installation near living spaces
Not Energy Star certified despite good efficiency specs, a slight marketing disadvantage
Reciprocating compressor design shows age compared to rotary or scroll alternatives in newer models
R410A refrigerant standard (though R22 compatible) limits future flexibility as industry transitions forward

Who Should Buy

Best For

Budget-conscious homeowners in mild to moderate climates replacing 15+ year old equipment who value upfront savings over cutting-edge efficiency. Contractors installing residential systems for price-sensitive customers seeking reliable mid-tier performance without premium pricing.

Consider Alternatives If

Homeowners in extreme climates needing maximum efficiency, those prioritizing whisper-quiet operation, or buyers planning 20+ year ownership who would benefit from variable-capacity two-stage systems.

3.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Fu

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Installation

Installation requires standard mechanical and electrical work. The system accepts both R410A and R22 refrigerant, offering some flexibility with existing line sets. Suction and liquid lines measure 7/8 inch and 3/8 inch respectively, typical sizing for 3.5-ton equipment. Electrical demands run 115V single-phase 60Hz with breaker requirements between 23.9 and 40 amps. The upflow A-coil configuration works with plastic PVC exhaust venting, simplifying flue installation compared to metal duct systems.

Warranty & Reliability

Goodman includes a 10-year parts warranty when customers complete online registration after purchase. This period covers compressor failure, coil leaks, and component defects, though labor costs fall on the homeowner or contractor. For comparison, premium brands often extend warranties to 10-12 years as standard, so this offering matches mid-tier expectations without standout advantages.

Specifications

SKU	LS38783830
Brand/Manufacturer	Online Supply
Cooling BTU	42,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	75
Weight (in lbs)	30.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	7/8"
Liquid Valve Size	3/8"
Max Breaker Size	40 amps
Min. Breaker Size	23.9 amps
Tonnage	5 Ton
Valve Type	Sweat
Height	30"
Width	21"
Depth	21"
Resources	CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	PROPOSITION 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 Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	96%
Blower Motor	Multi Speed
Maximum CFM	1600
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

How does the 13 SEER rating compare to newer air conditioners? +

13 SEER represents solid mid-tier efficiency, adequate for moderate climates but surpassed by current 14-16+ SEER two-stage and variable-capacity units. Single-stage operation limits optimization, resulting in higher cooling energy use during peak summer demand versus advanced alternatives.

What does 96% AFUE mean for my heating bills? +

96% AFUE indicates 96 cents of every heating dollar converts to usable warmth, with only 4% lost through exhaust. This beats standard 90% units by roughly 6% annual savings on gas heating costs, meaningful over multiple winter seasons.

Can I use this system with my existing copper line set from an old condenser? +

Yes, provided lines are properly sized. The 7/8 inch suction and 3/8 inch liquid requirements match standard 3.5-ton equipment. Have an HVAC technician verify line condition, cleanliness, and adequate insulation thickness of 3/8 inch before reusing.

Is this Goodman system quieter than budget alternatives? +

At 75 dB, it runs moderately loud for outdoor condenser placement. Budget single-stage units operate at similar decibel levels, but premium two-stage systems often measure 70-72 dB. Proximity to windows or patios matters significantly for perceived noise impact.

Does the 10-year warranty cover refrigerant leaks or wear items? +

Yes, the 10-year parts warranty covers refrigerant leaks and sealed component failures. Wear items like capacitors and fan motors are included. Labor costs for repairs are not covered and represent significant expense separate from parts warranty.

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