3 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This system suits homeowners upgrading from older equipment who want Energy Star certification and balanced heating/cooling without premium pricing. It delivers solid performance for moderate climates and mid-sized homes needing both gas heat and air conditioning in one package.

Review

Goodman's gas furnace and air conditioner system occupies the practical middle ground of residential HVAC. At $2,071, this package delivers Energy Star certification and proven component design without premium pricing. The 80,000 BTU furnace pairs with 34,800 BTU cooling capacity in an upflow configuration suitable for most homes. Scroll compressors and two-stage burners represent mature technology with solid field performance across contractors' service territories.

The cooling side posts a SEER1 rating of 16, which translates to roughly 15-20% better efficiency than baseline 13 SEER units, though newer two-stage systems exceed 20 SEER. The furnace delivers 80% AFUE efficiency, meaning 80 cents of heating output per dollar spent on fuel. Variable speed blower modulation prevents the constant on-off cycling of single-speed motors, improving comfort during partial-load conditions. The system runs at 73.5 dBA, acceptably quiet for residential installation.

Pros & Cons

Pros

Energy Star certified with variable speed blower motor for better comfort and lower operating costs
SEER1 rating of 16 provides above-average cooling efficiency, translating to roughly 15-20% lower AC costs versus baseline units
Two-stage burner with 80,000 BTU heating capacity handles full-load needs in one stage but can modulate for partial heating loads
Scroll compressor is proven technology with reputation for reliability and quiet operation at 73.5 dBA
10-year warranty with online registration covers parts and labor, standard for Goodman equipment at this price point

Cons

80% AFUE furnace efficiency is adequate but not high-tier; units reaching 95%+ AFUE are available for roughly $500-800 more
Single-stage air conditioner compressor means it runs at full capacity or off, not ideal for partial-load efficiency on milder days
Title lists 3-ton cooling but specs show 5-ton tonnage and 34,800 BTU actual cooling capacity, creating sizing confusion

Who Should Buy

Best For

Homeowners in mixed climates needing both heating and cooling who prioritize reliable, affordable equipment over cutting-edge efficiency. This works well for homes averaging 1,200-1,800 square feet where oversizing isn't a concern and upflow/horizontal configuration fits existing ductwork.

Consider Alternatives If

Anyone seeking top-tier efficiency should explore 96% AFUE furnaces with two-stage or variable-capacity compressors. Homes in very cold climates benefit from higher AFUE ratings that recover more flue gas heat.

3 Ton 15 SEER 80% AFUE 80,000 BTU Goodman Gas Furn

$2071

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Installation

Upflow configuration suits installations above crawlspaces, basements, or utility closets where return air flows upward. Metal exhaust flue requirement means stainless or aluminum venting, standard for gas furnaces. Electrical demands are modest at 120V single-phase 60Hz with 18.7 to 30 amp breaker sizing, fitting standard residential panels. Most qualified HVAC installers complete setup in 4-6 hours including ductwork integration.

Warranty & Reliability

The 10-year warranty with online registration covers parts and compressor issues, standard for Goodman equipment. This duration provides reasonable protection for residential use but falls short of some competitors offering 12-year or longer terms. Registration is straightforward and recommended immediately after installation to validate coverage.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	34,800
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	120 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73.5
Weight (in lbs)	30.000000
Feature	Spec
Energy Star	Yes
SEER1 (Efficiency)	16
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	7/8"
Max Breaker Size	30 amps
Min. Breaker Size	18.7 amps
Tonnage	5 Ton
Height	30"
Width	24.5"
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.
AHRI Certificate Number	204633307
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Variable Speed
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Does this unit qualify as Energy Star and what does that mean for my utility bills? +

Yes, Energy Star certification confirms this meets EPA efficiency standards. The 16 SEER1 cooling and 80% AFUE heating reduce annual operating costs by approximately 15-20% compared to non-certified baseline units. Exact savings depend on local utility rates and climate, but most homeowners see payback within 7-9 years.

Can this furnace and air conditioner pair with my existing ductwork? +

The upflow/horizontal configuration adapts to most standard residential ductwork, but professional ductwork evaluation is essential. The 2,000 CFM maximum airflow should align with existing trunk and branch sizing. Oversized or undersized ducts reduce efficiency and comfort, so HVAC inspectors typically verify compatibility before installation.

Is the 80% AFUE furnace efficient enough, or should I pay more for higher efficiency? +

80% AFUE is adequate for moderate climates and achieves industry mid-tier status. However, 95% AFUE models recover substantially more flue gas heat, particularly valuable in cold climates where heating season runs 6-8 months. Budget difference is typically $500-800 more upfront but recoups through 10-15 year operating costs in very cold regions.

How does this single-stage compressor compare to two-stage or variable-speed models? +

Single-stage compressors run at full output or off, less flexible than two-stage units that modulate capacity. Two-stage systems achieve 17-20 SEER ratings and operate more efficiently during partial-load conditions. Goodman's 16 SEER1 is competitive but not class-leading. Price premium for two-stage versions typically ranges $300-600.

What happens if this equipment fails after the warranty expires? +

After 10 years, repair costs become the homeowner's responsibility. Goodman parts remain widely available and relatively affordable through HVAC supply channels. Scroll compressors typically remain serviceable 15-20 years, though efficiency naturally degrades over time as refrigerant charge declines.

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