5 Ton 15 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system is ideal for homeowners replacing older equipment in moderate-to-large homes who want genuine efficiency gains without premium pricing. The 96% AFUE furnace and 16 SEER1 air conditioner make sense for properties where both heating and cooling run substantial hours annually.

Review

Goodman's 5-ton gas furnace and air conditioner system targets the practical middle ground of the residential HVAC market. This upflow unit combines a 100,000 BTU furnace with a 54,000 BTU cooling capacity, making it suitable for typical 2,500-to-3,500 square-foot homes in moderate climates. Online Supply prices this as a complete matched pair, simplifying specification and reducing compatibility risk compared to mixing manufacturers.

Efficiency numbers tell the real story. The furnace delivers 96% AFUE, meaning 96 cents of every energy dollar converts to heat, while the air conditioner achieves 16 SEER1 with a single-stage scroll compressor. The variable-speed ECM blower motor runs at whatever airflow the conditions demand, avoiding the energy waste of constant full-speed operation. Two-stage burner design means the furnace settles into low fire for mild weather, cutting on-and-off cycling that degrades efficiency.

Pros & Cons

Pros

96% AFUE furnace converts nearly all fuel to usable heat, reducing natural gas or propane costs significantly
16 SEER1 air conditioner with scroll compressor delivers solid cooling efficiency for the mid-tier market
Variable-speed ECM blower motor adjusts output to actual load, improving comfort and reducing electricity use
Two-stage burner allows the furnace to run at 60% capacity during mild weather, cutting cycling losses
10-year warranty with online registration provides substantial peace of mind for mechanical failures
Energy Star certified system qualifies for rebates in many utility territories, lowering installed cost

Cons

Single-stage air conditioning compressor cannot modulate capacity, resulting in less precise temperature control than two-stage units
73 dB noise level is audible during operation, which matters in open-concept homes or quiet neighborhoods
SEER1 rating of 16 trails premium two-stage systems by 4 to 8 points, affecting long-term cooling efficiency

Who Should Buy

Best For

Homeowners in moderate climates with 4-to-6-bedroom homes who heat and cool regularly and want proven reliability without luxury features. Contractors serving price-conscious residential clients who demand good efficiency will appreciate the straightforward design and reasonable parts availability.

Consider Alternatives If

Buyers seeking cutting-edge variable-capacity cooling or those in extremely cold regions where furnace efficiency above 95% provides minimal ROI should explore specialty equipment.

5 Ton 15 SEER 96% AFUE 100,000 BTU Goodman Gas Fur

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Installation

This upflow unit stands 30 inches tall and 21 inches square, fitting standard equipment closets and basement locations. It requires 115V single-phase 60 Hz power with a 29.6 to 50 amp breaker. PVC or plastic exhaust flue is acceptable, simplifying venting in newer homes. Refrigerant lines use 3/8 inch liquid and 7/8 inch suction sizes with 3/4 inch insulation, standard for the tonnage class.

Warranty & Reliability

Goodman provides 10 years parts coverage upon online registration, a solid commitment for furnaces and air conditioners that typically last 15-to-20 years. This warranty does not cover labor or refrigerant, which are owner responsibility. Coverage begins at manufacture date, not installation, so register promptly to avoid disputes.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	54,000
Heating BTU	100,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73
Weight (in lbs)	30.000000
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	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.
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
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

How much can I expect to save on heating bills compared to an 80% AFUE system? +

A 96% AFUE unit uses roughly 17 percent less fuel than an 80% AFUE system for identical output. Actual savings depend on climate and usage, but homeowners in heating-heavy regions often recover upgrade costs within 5 to 7 years through reduced gas bills.

Will this system fit in my basement equipment room? +

The 30-inch height, 21-inch width, and 21-inch depth fit standard closets, but you need clearance for ductwork connections and access to the front for filter changes. Verify actual space before ordering, especially if ductwork already occupies overhead routes.

What's the difference between SEER1 16 and SEER2 ratings I see advertised? +

SEER1 and SEER2 use different test assumptions. SEER2 is more realistic about real-world conditions and typically runs 15 to 20 percent lower than SEER1 for the same unit. This 16 SEER1 system would likely achieve 12 to 14 SEER2 equivalence.

Is a scroll compressor better than a reciprocating compressor for cooling? +

Scroll compressors are smoother, quieter, and more efficient than older reciprocating designs, but they do not modulate capacity like two-stage or variable units. For single-stage cooling, scroll is the practical choice in this price segment.

If the furnace fails at year 8, does the warranty cover the repair cost? +

Yes, the 10-year warranty covers parts replacement for furnace mechanical failure. You pay labor charges and any refrigerant needed. Always register online within 30 days of installation to ensure coverage eligibility.

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