Review
The Goodman 3-ton horizontal system occupies a practical middle ground in the HVAC market. With its 120,000 BTU furnace output and 36,000 BTU cooling capacity, it handles heating and cooling for homes in the 1,500 to 2,000 square foot range. This unit ships as a complete paired system from Online Supply, eliminating compatibility guesswork. The horizontal A-coil design makes it particularly valuable for installations where traditional vertical equipment won't fit, such as tight attics or cramped crawlspaces.
Performance metrics tell a solid story. The 96% AFUE gas furnace ranks among the best non-condensing options available, meaning 96 cents of every heating dollar converts to home warmth. On the cooling side, 13 SEER efficiency hits the current minimum federal standard but doesn't break new ground. The single-stage reciprocating compressor operates at 74 dB, which is perceptible but not unusual for this class. The multi-speed blower motor at 2,000 CFM maximum airflow allows better humidity and comfort management than fixed-speed designs.
Pros & Cons
Pros
- 96% AFUE furnace efficiency exceeds most mid-range competitors and reduces heating costs significantly
- 13 SEER cooling delivers solid performance with 36,000 BTU capacity for efficient temperature control
- Horizontal A-coil configuration fits tight spaces where vertical units won't work
- Multi-speed blower motor optimizes airflow and comfort across varying load conditions
- 10-year warranty with online registration provides meaningful coverage for parts and labor
Cons
- Single-stage compressor and burner limit efficiency gains compared to two-stage alternatives
- 74 dB noise level is audible during operation, particularly noticeable in quiet homes
- Not ENERGY STAR certified despite respectable SEER and AFUE ratings
Who Should Buy
Best For
Contractors installing replacement systems in homes with limited space constraints, particularly those with horizontal ductwork or attic installations. Homeowners in moderate climates looking for reliable efficiency without paying for premium variable-capacity equipment.
Consider Alternatives If
Anyone seeking ENERGY STAR certification or seeking the lowest possible operating noise should evaluate alternative units with two-stage compressors and scroll designs.
Installation
Installation requires standard HVAC competency. The unit accepts both R410A and R22 refrigerant, accommodating older and newer systems. Sweat valve connections use 3/8 inch liquid and 7/8 inch suction lines with pre-installed 3/8 inch insulation. Electrical demands stay modest at 115V single-phase 60Hz with breaker range from 19.1 to 30 amps. The plastic PVC exhaust flue requirement simplifies venting in many configurations. Dimensions of 30 inches length, 24.5 inches height, and 21.125 inches width fit standard horizontal spaces.
Warranty & Reliability
Online Supply includes a 10-year parts warranty activated through online registration. This is meaningful protection for furnace heat exchangers and compressor components. Ten-year coverage matches industry standards for mid-tier equipment. Registration is straightforward and typically required within 30 days of installation. Extended warranties may be available through your contractor.
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 | 24.5" |
| Width | 21.125" |
| Depth | 26" |
| Resources | CHPF Installation Manual CHPF 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 | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi Speed |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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