Review
Goodman's 5-ton downflow system targets the mainstream residential market with a balanced focus on heating performance and reasonable cooling capacity. This 100,000 BTU furnace achieves 97% AFUE efficiency, placing it firmly in the premium heating category where most high-efficiency gas furnaces perform. The system combines proven Goodman scroll compressor technology with an A-coil configuration and supports both natural gas and propane fuel, making it adaptable to existing home infrastructure in most regions.
Performance data reveals strong heating capability through modulating burner stages that fine-tune output between minimum and maximum 100,000 BTU levels. Cooling capacity reaches 54,000 BTU from the 5-ton condenser, though the single-stage compressor runs at full capacity rather than modulating like newer variable-speed designs. The variable-speed ECM blower delivers up to 2,000 CFM across 2,000 square feet, reducing energy waste during partial-load operation. At 16 SEER, cooling efficiency meets baseline modern standards but trails contemporary units rated 18+ SEER.
Pros & Cons
Pros
- 97% AFUE furnace efficiency significantly reduces natural gas consumption and heating costs year-round
- Modulating burner stages adjust heating output in real time, preventing temperature swings and improving comfort
- Variable-speed ECM blower motor runs quietly at 73 dBA and uses less electricity than fixed-speed alternatives
- PVC exhaust venting simplifies installation in modern homes and reduces corrosion issues
- Energy Star certified with 10-year warranty when registered, covering major components
Cons
- 16 SEER cooling efficiency lags behind newer competitors offering 18+ SEER, increasing summer electricity use
- Single-stage condenser means cooling runs at full capacity rather than modulating to actual cooling needs
- Downflow configuration limits placement options, requiring attic or utility closet installation
- R410A or R22 refrigerant compatibility adds cost uncertainty when service is needed
Who Should Buy
Best For
Homeowners in moderate climates prioritizing heating efficiency over cooling performance, or those replacing equipment in homes where furnace runtime dominates cooling runtime. Contractors installing systems in new construction or retrofits where ductwork supports downflow configuration.
Consider Alternatives If
Buyers in hot climates where air conditioning runs 6+ months annually should consider systems with 18+ SEER and variable-capacity compressors for better summer savings.
Installation
Downflow configuration requires vertical clearance and placement in attic or utility space above living areas. The PVC exhaust flue simplifies venting compared to rigid metal ducts, reducing installation complexity. Unit weighs 48 pounds and measures 30 inches tall by 21 inches wide, fitting standard equipment closets. 208/230V single-phase 60 Hz electrical requires 29.6 to 50-amp breaker sizing depending on final configuration. Professional installation with AHRI documentation (Certificate 7424272) is strongly recommended.
Warranty & Reliability
Goodman provides 10 years parts warranty with online registration, covering compressor, heat exchanger, and blower motor against manufacturing defects. This extended coverage is competitive within the mid-tier market and protects against expensive component failures. Registration is straightforward but required to activate full protection, so keep documentation immediately after installation.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 54,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7424272 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Energy Star | Yes |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Height | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF 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. |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 50 amps |
| Min. Breaker Size | 29.6 amps |
| Tonnage | 5 Ton |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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