Review
The Goodman 3-ton horizontal furnace and air conditioner system represents a practical middle ground in residential HVAC. This SKU LS38783830 combines an 80,000 BTU gas furnace with a 36,000 BTU cooling coil into one package, addressing both seasonal needs in a single installation. It's engineered for upflow or horizontal mounting, making it suitable for various home configurations. The system uses proven reciprocating compressor technology and single-stage operation, prioritizing reliability over the advanced efficiency features found in premium units.
Performance-wise, the 96% AFUE furnace rating shows strong thermal efficiency on the heating side, while the 13 SEER air conditioner delivers solid cooling efficiency for the 3-ton class. The multi-speed blower motor adapts to heating and cooling demands, improving comfort versus fixed-speed designs. Operating at 74 dB, the unit runs audibly but within typical residential ranges. Electrical requirements are modest at 115 V, 1 phase, 60 Hz, with breaker sizing between 19.1 and 30 amps. These specs make it compatible with most residential electrical panels without upgrades.
Pros & Cons
Pros
- 96% AFUE gas furnace with 80,000 BTU output handles serious heating loads efficiently
- 13 SEER air conditioner with 36,000 BTU cooling capacity matches the 3-ton rating properly
- Multi-speed blower motor optimizes airflow and comfort across varying load conditions
- Horizontal configuration works for tight installation spaces like crawlspaces or attics
- 10-year warranty with online registration provides solid long-term protection at this price point
- Reciprocating compressor design is field-proven and easily serviced by any competent tech
Cons
- 13 SEER is competent but not high-efficiency, lacks ENERGY STAR certification for eco-conscious buyers
- Single-stage compressor and burner limit part-load efficiency versus variable-capacity systems
- 74 dB noise level runs louder than premium inverter-driven units, noticeable during operation
- R410A or R22 refrigerant compatibility adds service complexity if older systems need retirement
- No modulation capability means less precise temperature control in spring and fall shoulder seasons
Who Should Buy
Best For
Homeowners in mixed-climate regions who prioritize reliable, straightforward equipment over cutting-edge efficiency. Contractors installing budget-conscious residential replacements where the home's existing ductwork is compatible will appreciate the horizontal configuration and standard field-friendly design.
Consider Alternatives If
Buyers in SEER2 markets, those seeking ENERGY STAR ratings, or homeowners with noise sensitivity should explore variable-capacity alternatives with higher seasonal efficiency ratings.
Installation
Installation is straightforward for qualified HVAC technicians. The horizontal A-coil configuration suits crawlspaces and attic applications. Connections use 3/8 inch liquid line and 7/8 inch suction line with 3/8 inch insulation thickness. The unit requires PVC or plastic exhaust flue venting, with the flue exiting right-side on this configuration. Maximum CFM output is 1200 at full blower speed, requiring compatible ductwork sizing. Most standard residential installations complete without complications.
Warranty & Reliability
Goodman provides a 10-year parts and labor warranty when registered online at purchase. This coverage applies to the furnace, compressor, and coil, protecting against manufacturing defects. Online registration is required to activate the full term, so buyers must complete this step promptly. This warranty duration is competitive for mid-tier equipment and provides reasonable protection against early failures.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| 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 | 17.5" |
| 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 | 1200 |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.