Review
The Goodman 4 ton horizontal gas furnace and air conditioner system represents a straightforward, reliable approach to residential climate control. This unit combines a gas furnace with a matched AC condenser in a single package, simplifying installation for replacement projects. Goodman maintains strong market presence among contractors seeking value-oriented equipment, though this model sits in the practical middle ground rather than performance or efficiency leadership.
Performance specs show 120,000 BTU heating output with 80% AFUE efficiency and 48,000 BTU cooling capacity (14 SEER). The scroll compressor runs at 74 dB, which is acceptable but audible during operation. Electrical requirements demand 120V single-phase 60Hz service with a 26.4 to 45-amp breaker. The multi-speed PSC blower delivers up to 2000 CFM, supporting adequate air circulation for 4 to 5-ton capacity across standard residential ductwork.
Pros & Cons
Pros
- 14 SEER cooling efficiency meets current federal minimums and runs on R410A refrigerant, future-proofing against phase-outs
- 120,000 BTU heating capacity covers most residential applications with 80% AFUE representing solid mid-range furnace performance
- Scroll compressor design reduces noise to 74 dB and improves reliability compared to reciprocating alternatives
- Multi-speed PSC blower motor provides flexible airflow up to 2000 CFM for better comfort control
- 10-year warranty with online registration covers defects and gives contractors standard protection
Cons
- Single-stage compressor and burner limit part-load efficiency, wasting energy during mild weather operation
- Not Energy Star certified, meaning it lacks advanced controls that reduce standby losses
- 80% AFUE lags behind modern 95%+ AFUE high-efficiency furnaces, costing more to heat over 15-year lifespan
- 74 dB noise level runs noticeably louder than variable-speed competitor units during peak operation
Who Should Buy
Best For
Contractors installing replacement systems in homes without premium energy budgets, and homeowners in moderate climates who prioritize upfront cost control over operational savings. This unit suits applications where ductwork already exists and basic comfort meets customer expectations.
Consider Alternatives If
Energy-conscious homeowners in cold climates should explore 95%+ AFUE furnaces. Buyers seeking quiet operation or lowest operating costs over 20 years will find better returns in variable-stage systems.
Installation
This horizontal unit measures 34.5 inches tall, 24.5 inches wide, and 28.75 inches deep, fitting tight spaces common in attics or crawlspaces. Refrigerant lines use 3/8-inch liquid and 7/8-inch suction connections with 3/8-inch insulation thickness included. The furnace requires metal exhaust flue with top location discharge. Standard gas, electrical, and refrigerant connections follow industry norms, making installation manageable for experienced HVAC technicians.
Warranty & Reliability
Goodman provides a 10-year parts and defect warranty when registered online. This coverage aligns with industry standard protection and reflects manufacturer confidence in reliability. Registration is straightforward and typically completed during installation. Coverage excludes normal wear items like filter media and capacitors, following typical manufacturer policies across equipment classes.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 48,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 120 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Energy Star | No |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 26.4 amps |
| Tonnage | 5 Ton |
| Height | 34.5" |
| Width | 24.5" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Manual Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information 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 | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Multi Speed - PSC |
| Maximum CFM | 2000 |
| Flue Location | Top |
| Burner Stages | Single |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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