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

// Bottom Line

This 4-ton combo system works best for homeowners upgrading older equipment who want solid efficiency gains without premium pricing. The 96% AFUE furnace and 13 SEER air conditioner deliver measurable utility savings, especially in moderate to cold climates where heating dominates annual costs.

Review

This Goodman combination system represents a practical middle ground in the HVAC market, offering respectable efficiency without the premium price tag. The unit combines a 100,000 BTU furnace with a 48,000 BTU air conditioner in a standard upflow A-coil configuration. It's designed as a complete replacement for older Goodman models like the GSX130483-485 series. The system uses R454B refrigerant, aligning with current environmental standards and avoiding future regulatory headaches.

Performance specs tell the real story. The furnace delivers 96% AFUE efficiency through two-stage heating and a variable-speed ECM blower capable of 2000 CFM maximum airflow. The air conditioner achieves 13 SEER1 efficiency with a single-stage reciprocating compressor running on 115V, 60Hz power. The combination qualifies for ENERGY STAR certification, translating to roughly 4-8% annual heating cost savings versus 90% AFUE equipment. Cooling noise runs 76 dB, which is moderate and noticeable but not unusually loud for this tonnage class.

Pros & Cons

Pros

96% AFUE furnace efficiency means heating costs 4-8% lower than 90% AFUE competitors
13 SEER air conditioner qualifies for ENERGY STAR and many utility rebates
Two-stage heating and variable-speed ECM blower provide comfort and quiet operation
R454B refrigerant meets current EPA standards with no future phase-out concerns
Lifetime heat exchanger warranty covers the most expensive potential failure point

Cons

Single-stage compressor limits cooling efficiency compared to two-stage models at 14+ SEER
76 dB noise level is louder than premium units, noticeable during compressor operation
5-ton outdoor condenser paired with 4-ton furnace creates minor AHRI mismatch requiring careful ductwork planning

Who Should Buy

Best For

Homeowners replacing 15+ year old systems in moderate to cold climates who prioritize heating efficiency and want EPA rebate eligibility. Contractors seeking reliable, mid-tier equipment with straightforward installation and proven Goodman reliability.

Consider Alternatives If

Buyers in hot climates seeking maximum AC efficiency, or those with tight acoustic requirements who can't tolerate 76 dB operation.

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

Buy at HVACDirect →

Installation

Installation complexity ranks moderate. The unit requires 3/8-inch liquid lines and 1 1/8-inch suction lines with 1/2-inch insulation, both sweat connections. Electrical demands fall within standard 200-amp residential service (26.3 to 45 amp breaker range). PVC exhaust flue compatibility simplifies gas venting. The 34.5-inch height and 21-inch width fit most closets and utility rooms. Professional installation strongly recommended for refrigerant handling and ductwork integration.

Warranty & Reliability

Coverage includes a lifetime heat exchanger warranty and 10 years parts protection with online registration. The heat exchanger lifetime coverage is valuable because heat exchanger replacement typically costs 40-60% of total system price. The 10-year parts warranty requires registration but covers compressor, blower motor, and control boards. Labor is not included, so extended service plans from local contractors provide additional cost protection.

Specifications

SKU	ACIQ-48-EHPD-UPG
Brand/Manufacturer	ACiQ
Cooling BTU	48,000
Heating BTU	100,000
Refrigerant	R454B
Electrical	115 V. 1 Phase 60 Hz
Warranty	Lifetime Heat Exchanger and 10 Years Parts with Online Registration
Decibel Level (dBA)	76
Weight (in lbs)	120.000000
Feature	Spec
Replaces	GSX130483, GSX130484, GSX130485
Energy Star	Yes
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
Height	34.5"
Width	21"
Depth	28.75"
Resources	Goodman Brochure Goodman Install Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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.
Configuration	Upflow/Horizontal
Style	A-Coil
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
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

Why is this listed as 4-ton but has a 5-ton outdoor unit? +

The furnace is 4-ton rated (100,000 BTU heating), while the air conditioner condenser is 5-ton capacity (48,000 BTU cooling). This slight mismatch is common and acceptable with proper ductwork design. AHRI certificate 7368836 validates the pairing. Work with your installer to confirm optimal air handler selection.

What electrical service does this system need? +

The 115V, 1-phase outdoor unit requires a 26.3 to 45-amp dedicated breaker on your main panel. Your furnace and air handler add additional load. Most homes with existing AC can accommodate this. Have your electrician verify your service panel capacity before purchase.

How much will heating and cooling costs drop compared to my old system? +

A 96% AFUE furnace saves approximately 4-8% annually versus 90% AFUE units. The 13 SEER air conditioner saves roughly 3-5% cooling costs versus 10 SEER equipment. Total savings depend on your climate, usage patterns, and current system age. Older equipment replacements show the largest dollar savings.

Is R454B refrigerant reliable and available for service? +

Yes, R454B is EPA-approved and increasingly standard in new equipment. Major wholesalers stock it. Unlike older R22 systems, you won't face future refrigerant phase-outs or scarcity. Service availability will improve as technicians transition to this standard.

What does the lifetime heat exchanger warranty actually cover? +

It covers manufacturing defects causing heat exchanger failure, with free replacement parts. Labor costs and system diagnostics are not included. Registration is required. This protects against the most expensive single component failure in a furnace system.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.