2.5 Ton 15 SEER 80% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman combo system suits homeowners in moderate climates seeking solid efficiency without premium pricing. The 80% AFUE furnace and 16 SEER2 condenser deliver respectable performance for replacement installations in homes up to 3,000 square feet.

Review

This Goodman gas furnace and air conditioner combo delivers straightforward efficiency in a compact package. Sold through Online Supply, it combines an 80% AFUE two-stage furnace capable of 100,000 BTU heating with a matching condenser unit rated for cooling capacity. The system earns Energy Star certification and appeals to contractors and homeowners seeking reliable mid-range equipment without premium financing.

Performance specs show 16 SEER2 cooling efficiency and 100,000 BTU heating capacity from two burner stages. The variable speed blower motor handles up to 2,000 CFM, reducing runtime during mild weather. However, the condenser's 29,000 BTU cooling output creates a tonnage mismatch worth investigating before purchase, as proper sizing directly impacts efficiency and lifespan.

Pros & Cons

Pros

Energy Star certified with 16 SEER2 cooling efficiency and 80% AFUE heating rating
Two-stage burner reduces short cycling and improves comfort during mild weather
Variable speed blower motor adjusts CFM from under 500 to 2,000 for better dehumidification
Compact dimensions (21 x 21 x 26 inches) fit tight closets and utility spaces easily
10-year warranty with online registration covers parts and labor comprehensively

Cons

80% AFUE is mid-range; modern high-efficiency models reach 95% AFUE and qualify for rebates
Single-stage condenser lacks variable capacity, cycling on and off rather than modulating output
29,000 cooling BTU falls short of the advertised 2.5 ton rating, suggesting oversizing in heating

Who Should Buy

Best For

Homeowners replacing aging 10-15 year old systems in moderate climates who prioritize reliability over cutting-edge efficiency. This system works well for split-ductwork homes where variable speed blower benefits comfort without major ductwork modifications.

Consider Alternatives If

Anyone in cold climates needing high AFUE ratings, homes with advanced smart thermostat requirements, or buyers chasing maximum rebates from utility companies.

2.5 Ton 15 SEER 80% AFUE 100,000 BTU Goodman Gas F

Buy at HVACDirect →

Installation

This upflow configuration requires metal exhaust flue, standard for most homes. The A-coil style pairs with 3/8 inch liquid lines and 7/8 inch suction lines, both supporting 50-foot line sets with 3/4 inch insulation. Electrical requirements are straightforward, 120V single phase 60Hz with 17.1 to 25 amp breaker sizing. Installation manual and specifications sheets are provided as downloadable PDFs.

Warranty & Reliability

Goodman backs this system with a 10-year warranty activated through online registration. Coverage includes parts and evaporator coil replacement, standard for residential equipment. Registration matters significantly; skipping it voids extended protection and leaves owners with manufacturer warranty only.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	29,000
Heating BTU	100,000
Refrigerant	R410A or R22
Electrical	120 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	71.5
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	25 amps
Min. Breaker Size	17.1 amps
Tonnage	3.5 Ton
Height	26"
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	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

Why does the spec sheet show 3.5 ton but only 29,000 cooling BTU? +

The tonnage listing appears inconsistent with cooling capacity. One ton equals approximately 12,000 BTU, so 3.5 tons should deliver 42,000 BTU minimum. Verify the exact condenser model before purchasing to ensure it matches your home's cooling needs and ductwork sizing.

Can this system accept both R410A and R22 refrigerant? +

The spec indicates compatibility with both refrigerants, though R22 is being phased out due to ozone depletion concerns. New installations should use R410A. If replacing an older R22 system, consult an HVAC technician about whether retrofitting to R410A makes economic sense.

How does 80% AFUE compare to newer furnaces? +

80% AFUE is mid-range efficiency. High-efficiency models reach 95% AFUE, reducing annual heating costs by 15 to 20 percent. However, the 80% rating still qualifies for Energy Star certification and suits homes where upgrade costs exceed long-term energy savings.

Is the variable speed blower worth the upfront cost? +

Yes, for most climates. The variable speed motor ramps down on mild days, lowering electricity use and reducing noise to 71.5 dB versus constant 78-80 dB operation. This extends equipment life and improves humidity management during spring and fall.

What if I don't register the warranty online? +

Registration unlocks the full 10-year coverage period. Without it, you'll have limited manufacturer protection. Complete online registration immediately after installation to secure parts and labor coverage.

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