Review
The Goodman 4/5 Ton dual-fuel system represents solid midrange equipment for residential HVAC replacements and new construction. This combination furnace and air conditioner delivers 120,000 BTU of heating and 45,500 BTU of cooling in a compact, upflow-configured package. Goodman has built its reputation on straightforward, dependable equipment rather than cutting-edge controls, and this unit reflects that philosophy with proven scroll compressor technology and two-stage gas burner design.
Efficiency numbers tell the real story here. The furnace achieves 96% AFUE, meaning 96 cents of every heating dollar converts to warm air rather than flue loss. The air conditioner reaches 16 SEER1 with Energy Star certification, putting it well above minimum 13 SEER standards. The multi-speed ECM blower handles airflow from zero to 2000 CFM, adapting to heating and cooling loads automatically. Real-world performance depends heavily on proper ductwork, refrigerant charge, and airflow balance during installation.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs significantly compared to older 80-85% models
- 16 SEER1 cooling efficiency with Energy Star certification meets modern efficiency standards
- Two-stage burner and single-stage compressor provide reliable, predictable operation with minimal complexity
- Multi-speed ECM blower motor adjusts airflow from 0 to 2000 CFM for comfort and efficiency
- 10-year warranty with online registration provides solid long-term protection
- Compact A-coil design (30 inches tall, 24.5 inches wide) fits tight upflow and horizontal installations
Cons
- Single-stage compressor cannot modulate cooling capacity, leading to higher cycling and less precise temperature control than variable-capacity units
- 73 dB noise level at full capacity may be noticeable in quiet environments, particularly during AC operation
- Spec discrepancy lists both 4-ton and 5-ton tonnage, creating confusion about actual cooling capacity relative to the 45,500 BTU rating
Who Should Buy
Best For
Contractors installing replacement systems in homes with tight mechanical spaces and homeowners seeking reliable efficiency without variable-capacity complexity. This system suits climates with moderate cooling demands and heating-heavy winters.
Consider Alternatives If
Buyers needing precise temperature control in large homes or those wanting modulating compressors should explore variable-capacity alternatives, as single-stage cooling cycles on and off more frequently.
Installation
Installation requires standard sheet metal ductwork connections, 3/8 inch liquid and 7/8 inch suction refrigerant lines with 1/2 inch insulation, and 115V, 60Hz single-phase electrical service. The unit draws 23.9 to 40 amps, requiring a dedicated breaker. Plastic PVC exhaust flue on the right side accommodates modern condensing furnace venting. Compact dimensions (30 inches tall, 24.5 inches wide, 21 inches deep) fit most closets and basements.
Warranty & Reliability
Goodman backs this system with 10 years of parts coverage when you register online after purchase. This warranty covers the furnace, air conditioner, and evaporator coil against manufacturing defects. Registration is straightforward and extends protection beyond the standard one-year hardware warranty, making it a genuine value-add for long-term ownership.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 45,500 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 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 | 30" |
| Width | 24.5" |
| 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. |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi-Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Burner Stages | Two |
| Fuel Type | Gas |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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