Review
The Goodman 3-ton horizontal gas furnace and air conditioner system sits squarely in the mid-market segment where homeowners balance cost against solid performance. This 100,000 BTU heating, 36,000 BTU cooling combo targets homes looking to replace aging equipment with proven technology rather than chase cutting-edge efficiency ratings. The horizontal A-coil design addresses real installation constraints in crawlspaces and low-clearance mechanical rooms where vertical units won't fit.
This system delivers 96% AFUE on the heating side and 13 SEER for cooling, using R410A or R22 refrigerant depending on your region and existing lines. The reciprocating compressor and single-stage burner provide straightforward operation without complex electronics, meaning lower troubleshooting costs for service techs. The multi-speed blower motor tops out at 2000 CFM, sufficient for homes up to 2500 square feet with standard ducting. Operating at 115V single-phase with a 30-amp maximum breaker, it integrates easily into existing residential electrical panels.
Pros & Cons
Pros
- 96% AFUE furnace rating delivers strong heating efficiency for gas-fired systems, reducing winter utility bills by 10-15% versus older models
- 13 SEER cooling with reciprocating compressor provides dependable performance in diverse climates without complex variable-speed electronics
- Multi-speed blower motor allows better comfort tuning and can help manage temperature swings in larger homes or ducting challenges
- Horizontal A-coil configuration fits tight spaces where vertical installations won't work, expanding installation flexibility
- 10-year warranty with online registration gives solid peace of mind for a mid-range unit at this price point
Cons
- Not ENERGY STAR certified, meaning it misses utility rebates that push competitor units over the efficiency threshold
- Single-stage compressor and burner mean the system runs at one speed, lacking the efficiency gains of modulating or two-stage units in partial-load conditions
- 74 dB noise level at full capacity is moderately loud, comparable to older units and louder than premium variable-capacity systems
Who Should Buy
Best For
Contractors and homeowners replacing legacy Goodman GSX130 series equipment will appreciate the direct compatibility and familiar reliability. Budget-conscious buyers in temperate climates who prioritize dependability over premium features should seriously consider this unit.
Consider Alternatives If
Skip this if you live in an extreme climate needing premium efficiency rebates, or if your home benefits from variable-capacity technology to reduce runtime noise and enhance comfort.
Installation
Installation requires standard sweat connections on 3/8-inch liquid and 7/8-inch suction lines with 3/8-inch insulation thickness. The unit fits upflow or horizontal configurations and exhausts through plastic PVC flue venting, eliminating the need for metal ductwork upgrades in many retrofit scenarios. Dimensions of 34.5 inches tall, 21 inches wide, and 28.75 inches deep mean careful space planning in tight mechanical rooms, though the 30-pound weight makes solo handling manageable.
Warranty & Reliability
Goodman provides a 10-year parts warranty when you register online after purchase. This coverage protects against compressor failure and component defects, though labor costs remain your responsibility. Registration takes minutes and activates immediately, providing straightforward protection without dealer involvement required for claims.
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 | 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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