Review
The Goodman 5-ton gas furnace and heat pump system represents the practical middle ground in HVAC equipment. This horizontal A-coil unit combines an 80% AFUE furnace with an 18 SEER cooling coil, making it suitable for contractors needing reliable budget equipment and homeowners upgrading aging systems. Goodman's reputation for straightforward manufacturing translates to lower material costs, passing savings to end users without sacrificing essential two-stage heating and cooling technology.
Real-world performance centers on those two stages working together. The furnace delivers 57,000 BTU with a two-stage burner that fires at reduced capacity during mild weather, cutting runtime and gas consumption. The matching condenser uses a two-stage scroll compressor and variable-speed 2,000 CFM blower to match cooling demand to actual conditions. At 75 dBA, this setup runs quieter than single-stage predecessors, and the 18 SEER rating means annual cooling costs drop noticeably in humid climates. Heating still requires 208/230V single-phase power and a 38.8-60 amp breaker, so older panels may need upgrading.
Pros & Cons
Pros
- Two-stage burner and condenser provide better part-load efficiency and quieter operation at 75 dBA
- Variable-speed blower motor maximizes comfort and reduces energy waste compared to fixed-speed alternatives
- 18 SEER cooling rating qualifies for Energy Star, translating to real savings on summer bills
- Horizontal configuration fits tight crawlspaces, attics, and utility closets where vertical units won't fit
- 10-year warranty with online registration covers major components without significant restrictions
- $2,071 price point undercuts comparable two-stage systems by $400-600
Cons
- 80% AFUE is functional but trails modern 95%+ condensing furnaces by 15 percentage points
- 18 SEER2 rating (converted from 16.5 SEER1) doesn't match high-efficiency mini-splits or variable-refrigerant systems
- Two-stage compressor limits fine-tuned capacity modulation on mild days, missing potential efficiency gains
- Metal flue requirement adds installation cost if your home lacks existing exhaust venting
- Requires 38.8 to 60-amp circuit, which may demand panel upgrades in older homes
Who Should Buy
Best For
Contractors installing budget replacements in rental properties or fix-and-flip scenarios will appreciate the reliability and quick installation window. Homeowners in moderate climates (zones 5-7) upgrading from 1990s-era single-stage systems will notice meaningful comfort and efficiency gains without overspending.
Consider Alternatives If
Skip this if you live in extreme climates, have premium natural gas pricing, or can afford condensing furnaces and variable-capacity compressors that deliver 25-30% higher efficiency.
Installation
Horizontal installation works in attics, basements, or crawlspaces where the 38.25-inch height, 35.5-inch width and depth fit standard framings. The A-coil configuration requires metal flue venting for exhaust, which adds labor if no existing metal duct exists. Suction line insulation (1/2-inch) and proper refrigerant line sizing using the 3/8-inch liquid and 1.125-inch suction specs are critical. Most qualified HVAC techs complete installation in one day, including startup and ductwork verification.
Warranty & Reliability
Goodman backs this unit with a solid 10-year parts warranty when you register online after purchase. Coverage includes the compressor, coil, and furnace heat exchanger, though it excludes wear items like capacitors and contactors. This warranty matches mid-tier competitor offerings and provides genuine peace of mind for homeowners, though it's not the lifetime coverage premium brands sometimes advertise.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 57,000 |
| Heating BTU | 57,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 75 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| AHRI Certificate Number | 204633307 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Variable Speed |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Height | 38.25" |
| Width | 35.5" |
| Depth | 35.5" |
| Resources | Goodman Customer Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Specifications Goodman Technical Information Goodman Technical Installation Goodman Technical Publication 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. |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Tonnage | 5 Ton |
| Style | A-Coil |
| Product Features | Rebate Available, Two Stage Condenser |
| Energy Star | Yes |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 1 1/8" |
| Max Breaker Size | 60 amps |
| Min. Breaker Size | 38.8 amps |
| Valve Type | Sweat |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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