Review
The Goodman 5-ton horizontal furnace and air conditioner system targets the practical middle ground between budget equipment and premium brands. At 120,000 BTU heating capacity with 54,000 BTU cooling, it handles typical residential loads without oversizing. This A-coil configuration integrates cleanly into existing ductwork, making it a natural fit for replacement projects where space constraints matter. Goodman's reputation rests on straightforward reliability rather than cutting-edge features, positioning this unit as the choice for contractors who prioritize installation speed and homeowners seeking dependable performance.
Efficiency numbers tell the real story. The furnace hits 96% AFUE, meaning 96 cents of every fuel dollar converts to heat, with only 4% lost up the PVC exhaust. The air conditioner reaches 16 SEER1, placing it firmly in high-efficiency territory and qualifying for Energy Star recognition. Two burner stages let the furnace run at 60% capacity during mild weather, reducing short-cycling and improving comfort. The variable-speed ECM blower motor adjusts airflow from near silence at 20% speed to full output at 2,000 CFM, matching capacity to actual heating and cooling demand rather than running full-blast constantly.
Pros & Cons
Pros
- 96% AFUE furnace efficiency exceeds minimum standards, reducing natural gas consumption noticeably on monthly bills
- 16 SEER cooling rating qualifies as Energy Star certified, well above the baseline 13 SEER requirement
- Two-stage burner and variable-speed ECM blower motor optimize comfort by running quietly at partial capacity most of the time
- Lifetime heat exchanger warranty provides genuine long-term protection against the most expensive failure point
- Horizontal/upflow configuration fits tight attic spaces where vertical-only units won't work
Cons
- Single-stage compressor in air conditioner means less modulation than two-stage competitors, potentially cycling on and off more frequently
- 73 dB noise level is acceptable but not quiet, noticeable in bedrooms located near the unit
- Requires 29.6 to 50 amp electrical service, necessitating panel upgrades in older homes with limited capacity
Who Should Buy
Best For
Contractors installing replacement systems in homes with existing horizontal ductwork and homeowners in northern or mixed climates where heating costs justify the 96% furnace efficiency. This unit rewards gas-heavy usage patterns with genuine savings.
Consider Alternatives If
Buyers prioritizing whisper-quiet operation or those with severely limited electrical service should evaluate two-stage compressor systems or higher-efficiency models, though they'll pay more upfront.
Installation
Horizontal mounting requires attic or crawl space access with adequate clearance for the 34.5-inch height, 24.5-inch width, and 28.75-inch depth. Electrical rough-in demands 115V single-phase 60Hz service with breaker capacity between 29.6 and 50 amps, typical of modern homes but requiring panel work in older installations. PVC plastic exhaust flue adapts easily to most homes. R410A refrigerant compatibility ensures compatibility with modern systems, though R22 options exist for legacy conversions.
Warranty & Reliability
Goodman backs the heat exchanger for life, a meaningful promise since this component often outlasts everything else. Parts carry 10-year coverage when you register online, a straightforward requirement that protects compressor, blower motor, and controls. This warranty structure rewards homeowners who maintain equipment properly while providing realistic long-term peace of mind without misleading lifetime claims on all components.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 54,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | Lifetime Heat Exchanger and 10 Years Parts with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| 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 | 50 amps |
| Min. Breaker Size | 29.6 amps |
| Tonnage | 5 Ton |
| Height | 34.5" |
| Width | 24.5" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Install 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 | 1 1/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7368842 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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