Review
The Goodman 4-ton gas furnace and air conditioner system sits squarely in the practical middle ground of residential HVAC equipment. Manufactured by Online Supply under the Goodman brand name, this upflow-configured combo delivers honest performance without luxury pricing. The system combines an 80,000 BTU furnace with a 48,000 BTU cooling unit, addressing both heating and cooling in one matched package. It's positioned for homeowners upgrading from older single-stage equipment who want measurable efficiency improvements without jumping to premium variable-capacity hardware.
Performance specifications reflect solid midrange engineering. The air conditioning side achieves 14 SEER1 efficiency using a scroll compressor operating at single stage, meaning it runs full capacity or off, cycling as needed. The furnace delivers 80% AFUE efficiency with a two-stage burner that adjusts output between high and low fire, improving comfort and reducing short-cycling losses. A multi-speed blower motor with 2,000 CFM maximum capacity adapts to heating versus cooling modes. The system operates on 120V single-phase 60Hz power and requires 26.4 to 45 amp breaker sizing.
Pros & Cons
Pros
- 14 SEER cooling efficiency beats budget models and keeps summer utility bills reasonable
- Two-stage burner in furnace allows modulating heat output, improving comfort and efficiency versus single-stage units
- Multi-speed blower motor adapts airflow to actual heating and cooling demand
- 80,000 BTU heating capacity sufficient for cold climates when paired with proper installation
- A-coil configuration supports both upflow and horizontal installations, fitting diverse home layouts
- 10-year warranty with online registration provides meaningful protection on compressor and parts
Cons
- 80% AFUE furnace efficiency is baseline, not premium, missing higher-efficiency condensing options that reach 95%
- Single-stage compressor cannot modulate cooling capacity, so it cycles on and off rather than running continuously
- 74 dB noise level runs slightly louder than variable-speed units, noticeable in quiet homes
- Spec sheet shows conflicting tonnage data (title says 4 Ton, specs show 5 Ton, 48,000 cooling BTU), creating confusion at purchase
- Not Energy Star certified despite 14 SEER rating, suggesting it misses efficiency thresholds for tax credits
Who Should Buy
Best For
Homeowners in moderate climates looking to replace 15+ year old equipment and willing to balance upfront cost against steady operating expenses. Contractors installing systems in price-sensitive residential markets where 14 SEER and 80% AFUE represent practical efficiency gains.
Consider Alternatives If
Anyone in extremely cold regions needing maximum heating output, homeowners seeking ENERGY STAR certification for tax credits, or buyers prioritizing whisper-quiet operation should explore variable-capacity alternatives.
Installation
This upflow A-coil configuration installs in attics or vertical closets with 34.5 inches height, 21 inches width, and 28.75 inches depth. Refrigerant lines accept standard 3/8 inch liquid and 7/8 inch suction copper tubing with 30 feet maximum length. The furnace needs metal exhaust flue venting. Installation demands proper nitrogen purging, evacuation, and charge verification, requiring EPA-certified technician work. Ductwork sizing and airflow balancing significantly impact real-world efficiency.
Warranty & Reliability
Goodman provides 10 years parts and compressor coverage upon online registration, a meaningful commitment that protects against manufacturing defects. The registration requirement means buyers must complete warranty paperwork or lose benefits. This warranty covers refrigerant, compressor, and most internal components. Labor and service calls fall outside coverage, so actual repair costs depend on local technician rates.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 48,000 |
| Heating BTU | 80,000 |
| 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 | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Manual 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 | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Multi-Speed |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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