Review
Goodman's 3 ton horizontal furnace and air conditioner system delivers straightforward, predictable performance for residential applications. This single-stage unit pairs a 96% AFUE gas furnace producing 120,000 BTU with a 13 SEER air conditioner rated at 36,000 BTU cooling output. The combination targets homeowners seeking reliable equipment without premium-tier specifications, making it popular for replacement projects where the existing home layout and ductwork are already established.
The furnace excels with its high AFUE rating, translating to approximately 96 cents of every gas dollar converting directly to heat rather than escaping through the flue. The 13 SEER condenser using R410A refrigerant meets current efficiency standards and keeps seasonal cooling costs moderate. The reciprocating compressor operates as single-stage, meaning it runs either fully on or off without variable capacity, resulting in predictable cycling patterns. With a multi-speed blower motor capable of 2000 CFM maximum airflow, the system adapts reasonably well to different thermostat calls.
Pros & Cons
Pros
- 96% AFUE furnace rating delivers excellent heating efficiency and lower winter gas bills
- 13 SEER cooling efficiency meets current DOE standards without ENERGY STAR premium costs
- Single stage compressor with reciprocating design offers proven reliability and easier service
- 120,000 BTU heating output handles climate zones 4-6 comfortably for average homes
- Multi-speed blower motor optimizes comfort and reduces noise during partial load operation
- Comprehensive 10-year warranty with online registration covers both components equally
Cons
- Single stage compressor cannot modulate capacity, leading to higher electrical draw and less precise temperature control than variable speed models
- 74 dB noise level runs louder than quieter inverter-drive systems, noticeable during peak operation
- No ENERGY STAR certification means higher operating costs compared to 15+ SEER alternatives
Who Should Buy
Best For
Homeowners in moderate climates replacing 10-15 year old systems who prioritize balanced efficiency over cutting-edge technology, and contractors installing standard replacement systems where cost control matters. This setup handles 3 ton cooling loads effectively while keeping utility bills reasonable.
Consider Alternatives If
Buyers in hot climates needing maximum cooling efficiency should explore 15+ SEER options, and those sensitive to equipment noise should consider variable capacity models instead.
Installation
This horizontal A-coil configuration requires proper mounting in attics or crawlspaces with adequate clearance for the 34.5 inch height and 24.5 inch width. Refrigerant line connections use 3/8 inch liquid and 7/8 inch suction sweat fittings, requiring basic brazing skills. The furnace needs standard 115V single-phase power with 19.1 to 30 amp breaker sizing. PVC exhaust flue routing to the right exit requires proper sealing and support throughout its run.
Warranty & Reliability
Goodman provides a 10-year parts warranty when you register the system online after installation. This covers both the furnace and air conditioner equally, providing solid long-term protection. Registration is straightforward through Goodman's website, and coverage begins from the installation date. This warranty ranks favorably compared to standard 5-year industry coverage but trails extended 10-15 year options available on premium units.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 120,000 |
| 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 | 3.5 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 24.5" |
| 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 | 2000 |
| 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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