Review
The Goodman 3-ton horizontal system pairs a gas furnace with an air conditioning condenser in a practical combination unit. This SKU LS38783830 is positioned as a replacement for earlier Goodman models and targets homeowners and contractors seeking straightforward equipment without premium features. At this price point, it competes against other mid-range combo systems from major manufacturers, emphasizing reliable performance over cutting-edge efficiency or smart-home integration.
Performance specs show strong heating capability with 40,000 BTU output and 96% AFUE efficiency, meaning the furnace converts nearly all fuel to usable heat. The cooling side delivers 36,000 BTU cooling at 13 SEER1 efficiency using a single-stage reciprocating compressor. The multi-speed blower motor supports 800 CFM maximum airflow and improves comfort by varying speed based on heating and cooling demand. Standard 115V, 60Hz electrical requirements fit most homes without special wiring.
Pros & Cons
Pros
- 96% AFUE furnace efficiency is excellent, recovering nearly all heat from combustion for strong winter performance
- 13 SEER cooling hits the efficiency sweet spot between cost and performance for most climates
- Multi-speed blower motor allows better temperature control and quieter operation than single-speed alternatives
- PVC/plastic exhaust compatibility simplifies venting installation compared to metal-only systems
- 10-year warranty with online registration provides solid protection for residential applications
Cons
- 36,000 BTU actual cooling output trails the marketed 3-ton rating, limiting performance in hot climates
- Single-stage compressor and burner lack the efficiency advantages of variable-stage components
- 74 dB noise level registers on the louder end for residential air conditioning, especially during cooling cycles
- Not Energy Star certified, missing qualification for utility rebates in some regions
- R22 refrigerant option complicates future service since R22 is being phased out
Who Should Buy
Best For
Homeowners in moderate climates upgrading from older Goodman systems (replaces GSX130362, GSX130363, GSX130365) and contractors installing straightforward replacement systems in existing ductwork designed for 3-ton capacity. This works well for those prioritizing heating performance and straightforward installation over premium cooling efficiency.
Consider Alternatives If
Anyone in hot, humid climates needing maximum cooling capacity should consider higher SEER systems. Energy Star shoppers hunting for utility rebates should look at certified alternatives. Homeowners in noise-sensitive settings may want quieter units.
Installation
Installation uses standard sweat valve connections with 3/8-inch liquid lines and 7/8-inch suction lines. The horizontal A-coil configuration suits upflow/horizontal applications with right-side flue exit. PVC/plastic exhaust venting simplifies installation compared to metal flue requirements. Suction line insulation is factory-applied at 3/8-inch thickness. Unit dimensions measure 34.5 inches tall, 17.5 inches wide, and 28.75 inches deep, requiring adequate mechanical room clearance.
Warranty & Reliability
Goodman provides 10 years of parts coverage with online registration, standard for the manufacturer. This covers compressor, heat exchanger, and most internal components. Registration is simple and extends protection beyond the base warranty period. Labor coverage typically requires separate service contract purchase. Warranty does not cover refrigerant, routine maintenance, or installation-related issues.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 40,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Replaces | GSX130362, GSX130363, GSX130365 |
| Energy Star | No |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 30 amps |
| Min. Breaker Size | 19.1 amps |
| Tonnage | 3 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 17.5" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation 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 | 7/8" |
| Style | A-Coil |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi Speed |
| Maximum CFM | 800 |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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