Review
The Goodman 3-ton downflow gas furnace and air conditioner system lands squarely in the practical middle ground of HVAC equipment. At 13 SEER and 96% AFUE, this unit addresses homeowners tired of heating and cooling costs but unwilling to spend premium dollars. The downflow A-coil configuration fits typical residential installations, while the 100,000 BTU heating capacity handles moderate climate demands effectively.
Performance numbers tell a solid story. The furnace delivers 100,000 BTU heating output at 96% AFUE efficiency, meaning 96 cents of every energy dollar converts to usable heat. The air conditioning side produces 36,000 BTU cooling at 13 SEER1, adequate for 3-ton cooling demands in temperate zones. The multi-speed 2000 CFM blower motor adapts to varying conditions. Single-stage operation means the compressor runs full capacity when called, cycling rather than modulating, which slightly reduces efficiency but simplifies maintenance.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs significantly compared to older units
- 13 SEER cooling efficiency provides solid year-round performance for temperate regions
- Downflow configuration fits tight spaces like attics or basements effectively
- Multi-speed blower motor allows flexible airflow management and comfort control
- 10-year warranty with online registration offers meaningful protection for system investment
- PVC exhaust compatibility simplifies installation and reduces venting material costs
Cons
- Single-stage compressor lacks modulation, cycling on and off rather than adjusting capacity
- 74 dB noise level runs louder than variable-capacity competitors during operation
- Not Energy Star certified, so no utility rebates available in many regions
- R22 refrigerant compatibility limits future servicing as industry transitions to R410A
Who Should Buy
Best For
Homeowners replacing aging furnace-AC systems in moderate climates seeking straightforward reliability and good efficiency without top-tier pricing. Contractors installing systems in budget-sensitive residential projects will appreciate the straightforward setup and proven Goodman component quality.
Consider Alternatives If
Anyone in extremely hot climates needing maximum cooling capacity should consider higher SEER units, and those prioritizing whisper-quiet operation should look at variable-speed alternatives.
Installation
Downflow installation suits attic and basement placements well. The 34.5-inch height, 21-inch width, and 28.75-inch depth fit standard utility closets and furnace spaces. PVC exhaust flue simplifies ductwork compared to metal alternatives. Electrical demands stay modest at 115V single-phase, though 19.1 to 30-amp breaker sizing must match your panel capacity. Sweat-type refrigerant valves (3/8-inch liquid, 7/8-inch suction lines) require basic soldering skills or professional connection.
Warranty & Reliability
The 10-year parts warranty protects your investment, assuming online registration completion. This covers compressor, heat exchanger, and component failures. Real-world coverage depends on proper installation and annual maintenance. Labor warranties vary by installer, so clarify this with your contractor before purchase. Goodman's warranty reputation ranks solid among contractors.
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 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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