Review
The Goodman 5-ton downflow system represents a pragmatic middle ground in the HVAC market. This unit pairs an 80,000 BTU two-stage furnace with a single-stage scroll compressor and A-coil configuration. At $117, it undercuts premium manufacturers while delivering Goodman's manufacturing reputation. The system carries AHRI certification 7368843 and qualifies as ENERGY STAR equipment, signaling compliance with current efficiency standards.
Performance metrics reveal a heating-focused design. The furnace achieves 96% AFUE efficiency using variable-speed ECM blower control and two-stage burner staging, meaningful advantages over base-model 80% AFUE units. Cooling output reaches 45,500 BTU at 16 SEER2 rating with R410A refrigerant. The scroll compressor generates 73 dB at full capacity, acceptable but not whisper-quiet. Electrical requirements are modest: 115V single-phase at 23.9-40 amp range, fitting standard residential service.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs by 10-15% versus 80% AFUE equipment
- 16 SEER2 cooling rating qualifies for ENERGY STAR and many utility rebates
- Variable-speed ECM blower motor adjusts airflow between 0-1600 CFM for zoning flexibility
- Two-stage burner and single-stage compressor provide quieter operation at 73 dB
- 10-year warranty with online registration covers parts comprehensively
- Plastic/PVC flue compatibility simplifies venting in retrofit installations
- $117 price point undercuts most name-brand alternatives by 20-30%
Cons
- Single-stage compressor lacks modulation capacity, running full-bore or off rather than ramping down on mild days
- 73 dB noise level runs 4-6 dB higher than variable-capacity competitors during cooling cycles
- 5-ton cooling capacity overstated in title, actual spec shows 4-ton equivalent with 45,500 BTU output, not the 60,000 BTU typical of true 5-ton units
- R410A refrigerant phase-out leaves future service uncertain, though R22 compatibility exists
Who Should Buy
Best For
Homeowners in temperate climates with 2,500-3,500 square foot homes seeking reliable heating-dominant systems where single-stage operation suits the use case. Budget-conscious contractors installing replacement equipment in existing ductwork appreciate the downflow/upflow flexibility and straightforward commissioning.
Consider Alternatives If
High-humidity or cooling-dominant regions should prioritize true variable-capacity compressors, as single-stage cycling wastes energy and drives up humidity control costs during extended air conditioning seasons.
Installation
Downflow/horizontal configuration requires compatible ductwork above or to the side of the unit. Dimensions of 30 inches height by 21 inches width and depth fit most closet and attic spaces. Plastic/PVC exhaust flue simplifies venting compared to metal alternatives. The 48-pound weight is manageable for two technicians. Refrigerant line sizing uses 3/8 inch liquid and 1 1/8 inch suction lines with 50 feet of insulated suction line included. Two-stage configuration demands proper gas and electrical hookup per CAPF installation manual.
Warranty & Reliability
Online registration activates a 10-year parts warranty covering compressor, heat exchanger, and controls against defects. This matches industry standard for mid-tier equipment. Goodman evaporator coil receives separate warranty documentation. Labor and refrigerant charges fall outside coverage. Registration is straightforward and extends protection beyond basic one-year baseline.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 45,500 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| Replaces | GSX16S481 |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Tonnage | 5 Ton |
| 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. |
| AHRI Certificate Number | 7368843 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 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.