2.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system makes sense for budget-conscious homeowners in moderate climates who prioritize lower upfront costs over premium efficiency. At $736, it delivers respectable 14 SEER cooling and 80% AFUE heating without breaking the bank, though it won't compete with high-efficiency models on operating costs.

Review

The Goodman 2.5-ton gas furnace and air conditioner combination represents the practical middle ground in residential HVAC equipment. Priced at just $736, this upflow system pairs an 80,000 BTU furnace with a 30,000 BTU cooling capacity in a compact 21-by-21-by-30-inch footprint. Online Supply positions this as the go-to option for contractors and homeowners seeking immediate cooling and heating without premium pricing or complex commissioning demands.

Performance lands where it should for this price tier. The 14 SEER cooling rating meets current efficiency minimums and will handle moderate summers reasonably well, though peak efficiency models hit 16-18 SEER. The furnace achieves 80% AFUE through a two-stage gas burner and high-efficiency multi-speed blower, delivering up to 2,000 CFM. Single-stage cooling and rotary compressor keep things simple and durable, though they sacrifice modulation efficiency compared to variable-capacity designs.

Pros & Cons

Pros

Excellent price point at $736 for a complete 2.5-ton combo system with matching coil
14 SEER rating meets modern efficiency standards without premium pricing
Two-stage gas burner provides better modulation than single-stage furnaces
High-efficiency multi-speed blower motor reduces energy waste during part-load operation
10-year warranty with online registration covers parts and labor comprehensively

Cons

80% AFUE is baseline efficiency, not cutting edge like 95%+ systems available today
Single-stage condenser limits cooling efficiency on partial-load days
72 dB noise level is audible, especially during peak operation
R410A refrigerant requires certified technician; R22 compatibility is legacy support only
No Energy Star certification, meaning higher operating costs versus certified units

Who Should Buy

Best For

This system works best for homeowners replacing aging equipment in mild-to-moderate climates where heating and cooling demands are balanced. Budget-conscious buyers willing to accept slightly higher utility bills in exchange for lower equipment costs will find solid value here.

Consider Alternatives If

Skip this if you prioritize lowest energy bills over equipment cost, live in extreme climates requiring heavy heating, or need whisper-quiet operation, because 80% AFUE and 72 dB output will disappoint.

2.5 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Fu

$736

Buy at HVACDirect →

Installation

Installation demands standard skill levels for upflow configurations. The system requires 120V single-phase 60 Hz power with 17.1 to 25 amp breaker capacity, typical for residential service. Metal exhaust flue is mandatory. Suction and liquid lines come pre-sized at 3/4-inch and 3/8-inch respectively, with 50 feet of suction line insulation included. A/coil design supports both upflow and horizontal installation flexibility.

Warranty & Reliability

Goodman provides 10-year parts and labor coverage when you complete online registration, which is standard industry practice. This warranty length matches most competitors in this price range. Evaporator coil carries separate extended protection documented in included resources. Coverage begins at installation date and requires registration within specified timeframe per Goodman documentation.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	30,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	120 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	72
Weight (in lbs)	22.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Rotary
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	25 amps
Min. Breaker Size	17.1 amps
Tonnage	3.5 Ton
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	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	High Efficiency Multi-Speed
Maximum CFM	2000
Configuration	Upflow / Downflow
Burner Stages	Two
Fuel Type	Gas
Liquid Line	3/8"
Suction Line	3/4"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Can I use this system with existing ductwork from a different brand? +

Yes. The upflow configuration and standard refrigerant connections work with most residential ductwork. However, have a technician verify duct sizing matches the 2,000 CFM maximum blower output. Undersized ducts reduce cooling efficiency, while oversized ducts waste energy.

What's the difference between this 14 SEER and higher-SEER models? +

SEER measures cooling efficiency; every 2-point increase typically cuts cooling electricity use by 10-15%. This 14 SEER unit runs about 20% higher monthly bills than an 18 SEER equivalent, but costs $500-800 less upfront. Best for moderate climates with mild summers.

Is 80% AFUE furnace efficiency acceptable in 2024? +

Yes, it meets federal minimums in most states. However, 95% AFUE models save $300-500 annually on heating in cold climates, justifying premium costs in northern regions. This unit suits milder climates where heating costs stay modest relative to cooling.

Why does this come in 2.5 ton and 3.5 ton options? +

The spec sheet shows 3.5-ton tonnage rating, suggesting a 2.5-ton matched coil pair. This sizing discrepancy warrants clarification with Online Supply before purchase. Standard practice pairs furnace and coil tonnages. Request confirmation your installation uses matched 2.5-ton components.

Do I need to register the warranty, and what happens if I don't? +

Registration is required for 10-year coverage activation. Skip it, and you lose warranty benefits. Most contractors handle registration during commissioning. Check your paperwork within 30 days of installation to ensure registration completed.

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