Review
This 3-ton Goodman gas furnace and air conditioner system targets contractors and homeowners seeking affordable, proven equipment rather than cutting-edge features. Built as a direct replacement for three legacy Goodman condenser models, it combines a 100,000 BTU furnace with a matching 36,000 BTU cooling coil. The downflow A-coil configuration suits existing installations in attics or basements where horizontal discharge matches current ductwork. Goodman's reputation for straightforward engineering and parts availability makes this a sensible choice for cost-conscious projects.
Efficiency numbers reflect mid-range performance for 2024 standards. The furnace achieves 96% AFUE, meaning 96 cents of every heating dollar reaches your home, a meaningful jump from the 80-82% typical of equipment over 15 years old. The air conditioner delivers 13 SEER cooling efficiency with a single-stage reciprocating compressor and R410A or R22 refrigerant compatibility. The multi-speed blower motor running up to 2000 CFM adds flexibility, though single-stage operation means the system runs at full power or off, rather than modulating capacity like pricier two-stage units.
Pros & Cons
Pros
- 96% AFUE furnace efficiency significantly reduces heating costs compared to older 80% units
- 13 SEER condenser provides solid cooling performance, especially for regional climates below extreme heat zones
- Multi-speed blower motor allows customized airflow, improving comfort and reducing energy waste
- Downflow configuration fits existing installations where space or ducting limits other orientations
- 10-year warranty with online registration covers major components, protecting your investment
Cons
- Single-stage burner and reciprocating compressor mean less modulation and potentially higher short-cycle noise at 74 dB
- Not Energy Star certified, so federal tax credits may not apply in your jurisdiction
- 13 SEER is baseline modern efficiency, not premium, and lags two-stage or variable-capacity systems by 2-4 SEER points
Who Should Buy
Best For
Contractors replacing failed Goodman units (GSX130362, GSX130363, GSX130365 models) will appreciate the exact compatibility and streamlined paperwork. Homeowners in moderate climates with tight budgets and downflow-compatible spaces benefit most from the 96% furnace efficiency and straightforward installation.
Consider Alternatives If
Skip this if you live in extreme heat regions, need Energy Star tax credits, or require quieter operation, as 74 dB and single-stage compression create more cycling noise than premium alternatives.
Installation
Installation requires a 115V single-phase 60Hz circuit with 19.1 to 30 amp breaker capacity, making it compatible with most residential electrical service. Downflow orientation demands upflow ductwork below the unit and careful plenum design. Sweat-type refrigerant connections with 3/8 inch liquid and 7/8 inch suction lines require a licensed HVAC technician or experienced installer. The 30-foot suction line insulation thickness of 3/8 inch meets industry standards for residential runs. PVC flue venting on the right side simplifies exhaust routing in tight spaces.
Warranty & Reliability
Goodman provides a 10-year parts and compressor warranty once you register online at their portal. This covers defects in materials and workmanship, protecting you against premature failure. Registration typically takes 15 minutes and activates within 24 hours. Unlike some competitors offering lifetime warranties, this limited term means out-of-pocket costs apply after year 10, though properly maintained systems often run 15-20 years.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 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 | 21" |
| 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 | Downflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Airflow Direction | Downflow/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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