Review
The Goodman 5-ton upflow system sits in a sweet spot for mainstream HVAC replacement projects. This unit combines 100,000 BTU heating capacity with 45,500 BTU cooling into a single all-in-one package, eliminating the need to source separate furnace and coil components. At $117, it's priced competitively for contractors and DIY installers who want proven Goodman reliability without boutique brand markup. The unit qualifies as ENERGY STAR certified, signaling solid efficiency across both heating and cooling modes.
Performance specs tell the real story here. The 96% AFUE rating on the furnace is genuinely impressive for the price point, burning fuel far more efficiently than baseline 80-85% models common in older homes. The air conditioning side delivers 16 SEER1 efficiency, exceeding 2023 regional minimums in most markets. The scroll compressor is field-proven technology, and the variable-speed blower running up to 2000 CFM matches airflow to actual heating or cooling demand. Two-stage burner modulation prevents short-cycling and temperature swings.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means lower natural gas or propane bills, translating to roughly 10-15% savings versus 80% AFUE units
- 16 SEER1 cooling efficiency exceeds ENERGY STAR requirements and handles 45,500 BTU cooling capacity for medium to large homes
- Variable-speed ECM blower motor with 2000 CFM maximum airflow reduces energy waste during partial-load operation
- Two-stage burner provides better comfort and efficiency than single-stage models in varying weather conditions
- Lifetime heat exchanger warranty plus 10-year parts coverage with registration gives long-term peace of mind
- PVC/plastic exhaust flue compatibility simplifies installation in homes without metal ductwork
Cons
- Spec sheet lists both 4-ton and 5-ton ratings, creating confusion about actual system capacity
- Single-stage air conditioning compressor lacks the efficiency advantages of two-stage or modulating units in partial-load scenarios
- 73 dB noise level is moderately loud during operation, potentially noticeable in quiet neighborhoods
- Requires 23.9 to 40 amp electrical service, demanding careful breaker sizing during installation
Who Should Buy
Best For
Homeowners in moderate to cold climates seeking an affordable upgrade from 80-90% AFUE furnaces should consider this unit. It's particularly attractive for those heating with natural gas or propane who run AC seasonally and want measurable energy savings without the premium cost of variable-capacity systems.
Consider Alternatives If
Buyers in hot climates prioritizing cooling efficiency alone should compare two-stage AC units, and those seeking whisper-quiet operation should audition quieter models before committing.
Installation
This unit is designed for upflow installation in basements or utility closets with overhead ductwork. It requires 115V, 60Hz single-phase power with breaker sizing between 23.9 and 40 amps, so most homes need only a dedicated circuit rather than full panel upgrades. Liquid and suction line sizing (3/8 inch and 1 1/8 inch respectively) are standard for 5-ton units. The A-coil configuration requires proper drainage, and 50-foot suction line insulation should be installed per Goodman specifications to prevent refrigerant loss.
Warranty & Reliability
Goodman backs the heat exchanger for the product lifetime, a strong protection against catastrophic furnace failure. Parts coverage extends 10 years when you register online, though labor is customer responsibility. This warranty structure is typical for mid-tier equipment and provides reasonable protection for 10-15 year system life expectations. Registration is simple and unlocks the full coverage, so buyers should complete it immediately upon installation.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 45,500 |
| Heating BTU | 100,000 |
| 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 |
| Replaces | GSX16S481 |
| 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 | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Tonnage | 5 Ton |
| 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 |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| 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
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