5 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system works best for homeowners in moderate climates needing reliable heating and cooling without premium pricing. The 16 SEER rating and 96% AFUE efficiency make it genuinely cost-effective over 15-20 years, especially with utility rebates available.

Review

The Goodman 5-ton upflow system combines a 120,000 BTU furnace and 54,000 BTU air conditioner into a unified package. This A-coil configuration works in tight attic or closet spaces where basement installs aren't viable. Goodman consistently ranks among the most installed HVAC brands by contractors due to part availability and reasonable pricing. The Energy Star certification signals legitimate efficiency, though this system occupies the practical rather than premium tier of the market.

Cooling efficiency hits 16 SEER, matching mid-tier systems from Carrier and Lennox at lower cost. Heating pushes 96% AFUE with two-stage burner control, meaning the furnace adjusts output for milder days rather than firing full blast every cycle. The variable-speed ECM blower adapts to your home's actual demand, not running at maximum 2000 CFM constantly. Refrigerant lines use standard 3/8 inch liquid and 7/8 inch suction connections, simplifying retrofit jobs on existing line sets.

Pros & Cons

Pros

16 SEER rating delivers real energy savings, roughly 20-30% lower cooling costs than 13 SEER systems
96% AFUE furnace efficiency means minimal fuel waste during heating season, approximately 96 cents of every heating dollar goes to comfort
Variable-speed ECM blower motor optimizes airflow at 2000 CFM maximum, reducing runtime and noise in smaller spaces
Two-stage burner provides precise heating control, maintaining comfort while lowering operating costs
Lifetime heat exchanger warranty protects against catastrophic failure, the most expensive furnace component

Cons

Single-stage compressor means the AC runs at full capacity or off, missing the efficiency gains of two-stage or variable-speed cooling
73 dB noise level is moderately loud for a residential condenser, comparable to a vacuum cleaner during operation
Requires 29.6 to 50 amp breaker circuit, meaning some older homes may need electrical panel upgrades

Who Should Buy

Best For

Homeowners replacing an aging 10-13 SEER system or building new in regions with balanced heating and cooling loads want this unit. It's particularly strong for contractors seeking reliable, readily available Goodman components at competitive pricing.

Consider Alternatives If

Buyers in very hot climates where AC runs 8+ months yearly should consider variable-capacity compressors instead, and noise-sensitive homeowners should audition this unit before purchase.

5 Ton 16 SEER 96% AFUE 120,000 BTU Goodman Gas Fur

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Installation

This upflow unit fits standard attic or furnace closet locations with 34.5 inch height and 24.5 by 28.75 inch footprint. Electrical requires 115V single-phase 60Hz service with a breaker sized between 29.6 and 50 amps, typical for modern homes. Plastic PVC exhaust venting is straightforward, avoiding masonry or metal flue complications. Most licensed HVAC contractors complete installation in 4-6 hours on replacements.

Warranty & Reliability

The lifetime heat exchanger warranty covers defects for as long as you own the home, protecting against rust-through or manufacturing flaws. Ten-year parts coverage requires online registration and applies to compressor, blower motor, and valve failures. Labor and refrigerant charges are excluded, so service calls still cost money, but major component replacement won't empty your wallet.

Specifications

SKU	LS381183850
Brand/Manufacturer	Online Supply
Cooling BTU	54,000
Heating BTU	120,000
Refrigerant	R410A
Electrical	115 V. 1 Phase 60 Hz
Warranty	Lifetime Heat Exchanger and 10 Years Parts with Online Registration
Decibel Level (dBA)	73
Weight (in lbs)	48.000000
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	50 amps
Min. Breaker Size	29.6 amps
Tonnage	5 Ton
Height	34.5"
Width	24.5"
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
Liquid Line	3/8"
Suction Line	1 1/8"
Style	A-Coil
AHRI Certificate Number	7368842
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

How much can I save annually compared to my old 13 SEER air conditioner? +

A 16 SEER unit uses approximately 18-22% less electricity than 13 SEER over a cooling season. On a $1,200 annual cooling bill, expect $215-265 in annual savings. Payback typically spans 5-8 years depending on local electricity rates and usage patterns. Energy Star certification confirms these efficiency levels through independent testing.

Will this unit fit in my attic, and what clearance do I need? +

The 34.5 inch height and 28.75 inch depth fit most attic installations with standard framing. You need at least 36 inches of vertical clearance and 30 inches of depth for service access. Check your ductwork connections before ordering, as mismatched return air plenums require custom sheet metal work costing $200-400 extra.

Why does this have a single-stage compressor instead of variable-speed like premium units? +

Single-stage design lowers manufacturing costs, which Goodman passes to buyers. The tradeoff is the AC runs full capacity until temperature is reached, then shuts off completely. This still achieves 16 SEER through efficient refrigerant cycles and the variable-speed blower managing sensible cooling. Variable-capacity compressors add $2,000-3,000 to system cost for roughly 2-3 SEER improvement.

How does this compare to a Carrier 25HNH6 or Lennox XC21? +

All three deliver similar 16 SEER ratings and reliable operation. Lennox charges a 15-20% premium for brand reputation and slightly quieter operation. Carrier offers marginally better parts availability in some regions. Goodman typically costs 10-15% less while maintaining equivalent heating efficiency and warranty coverage. Choose based on local contractor familiarity and parts availability in your area.

Does the 10-year parts warranty cover everything if something breaks? +

Parts coverage includes major components like the compressor and blower motor after online registration. Refrigerant, labor, and wear items like capacitors are excluded. You pay service call costs, typically $150-300, then Goodman covers component replacement cost if defective within ten years.

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