2.5 Ton 13 SEER 96% AFUE 40,000 BTU Goodman Gas Furnace and Air Conditioner System - Downflow Review 2026

// Bottom Line

This system works best for homeowners in moderate climates who prioritize upfront savings over advanced comfort features. At $643, you're getting solid furnace efficiency (96% AFUE) paired with adequate cooling (13 SEER), making it attractive for budget-conscious replacements in smaller homes or mild cooling regions.

Review

The Goodman 2.5-ton downflow combo represents the entry-level segment of affordable HVAC systems, positioning itself against regional no-name brands and dated equipment. At $643, this unit delivers respectable nameplate efficiency with a 96% AFUE furnace and 13 SEER air conditioner, making it attractive for contractors managing cost-sensitive residential retrofits. The downflow A-coil configuration works well in attic or horizontal installations common to residential construction.

Heating performance reaches 40,000 BTU across two modulating burner stages, allowing the system to run part-load and reduce energy waste during moderate outdoor temperatures. The cooling side delivers 30,000 BTU through a single-stage reciprocating compressor at 73 dB, which falls into typical window unit noise range. The variable-speed ECM blower motor (rated 1,200 CFM maximum) helps distribute heated and cooled air more evenly than fixed-speed motors, though the single-stage compressor limits part-load efficiency during shoulder seasons.

Pros & Cons

Pros

96% AFUE furnace efficiency delivers genuine heating cost savings, especially in northern climates running winter cycles
13 SEER rating meets Energy Star requirements and qualifies for many utility rebates, lowering net cost
Variable-speed ECM blower motor provides better comfort than fixed-speed alternatives, reducing cycling and noise
Two-stage burner allows modulated heating, improving efficiency and reducing temperature swings
R454B refrigerant is modern EPA-approved alternative, future-proofed against phaseouts
Downflow A-coil configuration suits attic or closet installations in many residential layouts

Cons

Single-stage compressor means the AC runs at full capacity constantly, wasting energy in mild weather and cycling on/off more frequently
73 dB noise level is audible, particularly noticeable during cooling season when compressor engages
30,000 BTU cooling capacity undershoots the 40,000 BTU heating output, creating imbalance for heating-dominant climates
Entry-level SEER2 performance won't match two-stage or variable-capacity competitors costing $200-300 more

Who Should Buy

Best For

This system suits homeowners in ASHRAE zones 5-7 (cold climates) where heating demand far exceeds cooling, or small homes under 1,200 sq ft needing cost-effective replacement units. Budget-conscious buyers willing to trade cycling efficiency for lower upfront investment will appreciate the $643 price point.

Consider Alternatives If

Skip this if you live in hot/humid climates requiring aggressive AC runtime, need ultra-quiet operation below 70 dB, or want variable-capacity cooling that adjusts to seasonal demand without frequent on/off cycles.

2.5 Ton 13 SEER 96% AFUE 40,000 BTU Goodman Gas Fu

$643

Buy at HVACDirect →

Installation

This downflow system requires standard 115V single-phase 60 Hz household power with a 16.7 to 25-amp breaker, making electrical work straightforward for most installations. Suction and liquid lines use common 3/4-inch and 3/8-inch sweat fittings, familiar to experienced technicians. PVC plastic flue venting is required, which is typical and affordable. Weighing 120 lbs, handling is manageable for two technicians.

Warranty & Reliability

ACiQ backs this unit with a 10-year parts warranty upon online registration, providing solid peace of mind for compressor failures and major component defects. Unlike some manufacturers, no labor coverage is included, meaning repair costs beyond parts fall on the homeowner. The 10-year term is competitive at this price tier, though registration is mandatory.

Specifications

SKU	ACIQ-30-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	30,000
Heating BTU	40,000
Refrigerant	R454B
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73
Weight (in lbs)	120.000000
Feature	Spec
Energy Star	Yes
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	3/4"
Liquid Valve Size	3/8"
Max Breaker Size	25 amps
Min. Breaker Size	16.7 amps
Tonnage	3 Ton
Valve Type	Sweat
Height	34.5"
Width	17.5"
Depth	28.75"
Resources	Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman Warranty You will need AdobeÂ® AcrobatÂ® 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.
Configuration	Downflow/Horizontal
Style	A-Coil
AHRI Certificate Number	7368837
Airflow Direction	Downflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	1200
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why is cooling capacity (30,000 BTU) lower than heating capacity (40,000 BTU)? +

This design intentionally oversizes heating for cold climates where furnace runtime is the bottleneck. In heating-dominant regions, cooling rarely maxes out, so manufacturers save cost by undersizing the compressor. For balanced year-round performance, expect limitations during extended summer heat waves.

Will this unit fit in my attic space? +

Dimensions are 50 inches long, 34.5 inches tall, and 17.5 inches deep. Measure your available space carefully, especially ductwork routing. The downflow configuration assumes vertical installation with clearance below for return air, typical in attic settings.

How much will I save on heating costs versus an older system? +

The 96% AFUE furnace converts 96 cents of every gas dollar into usable heat, versus 78-82% on 15-year-old equipment. Annual savings depend on climate and usage, but expect 15-20% heating bill reductions in northern climates running the furnace 4,000+ hours yearly.

Is 13 SEER good enough, or should I pay more for 16+ SEER? +

13 SEER is adequate for mild climates and part-time cooling duty. Higher SEER units use two-stage or variable compressors that modulate output, cutting cycling waste. In hot regions, upgrading to 16+ SEER pays back within 7-10 years through lower electricity costs.

What does the 10-year warranty actually cover? +

The warranty covers parts defects after online registration, including compressor, coil, and blower motor failures. It excludes labor, maintenance, and damage from improper installation or refrigerant contamination. Proof of purchase and registration are required.

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