4 Ton 13 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This ACiQ system excels for contractors upgrading homes to high-efficiency heating and cooling without major ductwork redesigns. The 96% AFUE furnace and 13 SEER air conditioner deliver measurable energy savings, particularly in mixed climates where both heating and cooling matter.

Review

The ACiQ ACIQ-48-EHPD-UPG combines a high-efficiency gas furnace with integrated air conditioning in one upflow package. This 4 ton system (nominal capacity) replaces older Goodman GSX models and targets cost-conscious contractors and homeowners seeking modern efficiency without full system replacement. The compact 120-pound unit fits standard utility closet installations, making it practical for retrofit projects where space constraints matter.

Performance specifications tell the real story. The furnace delivers 100,000 BTU at 96% AFUE, meaning 96 cents of every fuel dollar converts to usable heat, versus 80-85% in legacy systems. The integrated air conditioner produces 48,000 BTU at 13 SEER1, adequate for moderate cooling loads. Two-stage burner modulation and variable-speed ECM blower optimize efficiency across part-load conditions, reducing runtime costs and noise to 76 dB during standard operation.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
Two-stage burner modulates heat output, improving comfort and reducing short-cycling
Variable-speed ECM blower motor adjusts airflow, lowering energy use and noise to 76 dB
PVC exhaust compatibility simplifies venting through existing chase or new sidewall installations
R454B refrigerant future-proofs the system against upcoming EPA phaseouts of older refrigerants
Compact 30x21x21 inch footprint fits tight utility closets and attic spaces
10-year warranty with online registration provides solid coverage for the investment

Cons

13 SEER rating is competent but not premium, 14+ SEER models offer faster ROI in high-cooling climates
Single-stage condenser cannot modulate cooling capacity, reducing efficiency on mild days
76 dB noise level runs louder than variable-capacity competitors, noticeable in bedrooms near furnace
5 ton condenser mismatch with 4 ton system creates minor capacity imbalance requiring HVAC validation

Who Should Buy

Best For

Contractors replacing aging 80-85% AFUE furnaces in homes where ductwork modifications are minimal or unnecessary. Homeowners in regions with cold winters and moderate summers benefit most, as the high furnace efficiency pays dividends faster than the modest cooling efficiency.

Consider Alternatives If

Buyers in hot climates prioritizing air conditioning efficiency or those needing premium quiet operation should explore single-stage variable-capacity units or higher SEER alternatives.

4 Ton 13 SEER 96% AFUE 100,000 BTU Goodman Gas Fur

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Installation

Upflow configuration suits basement and utility closet placement with horizontal or vertical return air drops. PVC exhaust venting simplifies installation compared to metal flue requirements, allowing routing through exterior walls or roof without expensive chimney modification. Sweat-type refrigerant connections require brazing skills. Electrical demands 26.3 to 45 amp breaker at 208/230V single-phase, standard in residential service.

Warranty & Reliability

ACiQ offers 10 years parts and labor coverage when registered online after installation. This competitive warranty protects against compressor failure, heat exchanger defects, and component burnout. Registration is free and typically completed during commissioning, making activation simple for informed contractors and homeowners.

Specifications

SKU	ACIQ-48-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	48,000
Heating BTU	100,000
Refrigerant	R454B
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	76
Weight (in lbs)	120.000000
Feature	Spec
AHRI Certificate Number	7368836
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Product Features	Rebate Available
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	2000
Configuration	Upflow / Downflow
Energy Star	No
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Height	30"
Width	21"
Depth	21"
Resources	CAPT Installation Manual CAPT 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.
Replaces	GSX130483, GSX130484, GSX130485
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	1 1/8"
Liquid Valve Size	3/8"
Max Breaker Size	45 amps
Min. Breaker Size	26.3 amps
Tonnage	5 Ton
Valve Type	Sweat
Style	A-Coil
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

Why does the spec sheet list 5 ton when you call it 4 ton? +

The condenser coil is rated 5 ton cooling capacity, but the furnace heating output and system design target 4 ton nominal tonnage. This minor mismatch is acceptable if HVAC calculations confirm the condenser doesn't cause superheat or compressor stress on design days. Always verify with local technician.

Can this furnace vent through PVC into an existing metal chimney? +

No. PVC exhaust requires dedicated venting to an exterior wall or roof. Metal chimneys risk condensation damage inside PVC and thermal stress. Consult local code and your HVAC contractor before mixing materials. Plastic vent kits rated for this furnace are available separately.

How much heating cost savings does 96% AFUE deliver versus an 80% unit? +

At $1.50 per therm natural gas, heating 100,000 BTU with 96% AFUE costs roughly $1.56, versus $1.95 for 80% AFUE. Annual savings depend on heating degree days. In Chicago, expect 15-20% lower heating bills; in Phoenix, minimal difference since heating demand drops.

Is 13 SEER enough, or should I upgrade to 14+ SEER? +

13 SEER handles mild summers competently but underperforms in high-cooling climates. Jumping to 14-15 SEER costs $800-1,200 more upfront but recovers that premium in 5-7 years through reduced AC runtime. Colder regions benefit more from furnace efficiency gains than cooling upgrades.

What if my home only needs heating, not cooling? +

Purchase the furnace component separately as a standalone unit without the air conditioning condenser coil. This saves money and simplifies installation if cooling is not required. Contact ACiQ directly for heating-only configuration options and pricing.

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