Review
The Goodman 1.5-ton system with 80,000 BTU furnace occupies a practical middle ground in the HVAC market. At $2,666, it undercuts premium manufacturers while delivering respectable efficiency ratings: 96% AFUE and 14 SEER. This upflow A-coil configuration fits standard closet installations, and the dual-fuel design accepts both natural gas and propane, differentiating it from competitors locked into single fuel sources.
Performance metrics reveal solid engineering. The 96% AFUE rating means only 4 BTU per 100 are lost as exhaust, versus 8 BTU at 92% AFUE. The 14 SEER rating (18,000 cooling BTU output) qualifies for Energy Star status and regional utility rebates. Variable-speed ECM blower runs at reduced speed during partial-load conditions, lowering electricity draw compared to fixed-speed alternatives. Two-stage burner operation maintains modulation during mild weather, though the single-stage compressor cannot reciprocate this efficiency advantage on cooling cycles.
Pros & Cons
Pros
- 96% AFUE furnace efficiency translates to roughly 4% lower heating costs than 92% AFUE competitors
- 14 SEER cooling efficiency qualifies for Energy Star certification and most utility rebates
- Dual-fuel capability supports both natural gas and propane, rare at this price point
- Variable-speed ECM blower motor delivers up to 1,200 CFM with better comfort and lower runtime costs
- Two-stage burner modulation reduces short-cycling and extends equipment lifespan
Cons
- Single-stage condenser means cooling capacity doesn't adjust to light loads, reducing efficiency on mild days
- 70 dB noise level is audible from adjacent rooms during high-speed operation
- 3-ton condenser paired with 1.5-ton heating creates capacity imbalance for some cooling-dominant climates
Who Should Buy
Best For
Homeowners in transition zones between heating and cooling seasons seeking balanced performance at $2,666. Contractors valuing Goodman's reputation and parts availability, or properties with dual-fuel requirements like rural homes with propane backup.
Consider Alternatives If
Anyone prioritizing whisper-quiet operation or living in extreme cooling climates where single-stage modulation creates inefficiency should evaluate 2-stage condenser models instead.
Installation
Installation requires 115V single-phase 60Hz power with 11.8 to 20-amp breaker compatibility, standard in most homes. Sweat connections use 3/8-inch liquid lines and 3/4-inch suction lines with 3/4-inch insulation thickness. PVC plastic exhaust flue is required. The 34.5-inch height, 17.5-inch width, and 28.75-inch depth fit tight closet spaces. Suction line extends 50 feet maximum, accommodating split systems in larger homes.
Warranty & Reliability
Goodman provides 10-year parts warranty with online registration. This is industry standard, neither exceptional nor weak. Registration typically takes 15 minutes online and activates coverage immediately. Ten years covers most component failures and provides peace of mind for homeowners planning 15-plus-year ownership. Some competitors offer lifetime heat exchanger coverage, which Goodman does not highlight here.
Specifications
| SKU | LS38343850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 18000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 70 |
| Weight (in lbs) | 22.000000 |
| Feature | Spec |
| Replaces | GSZ140191 |
| Energy Star | Yes |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Rotary |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 20 amps |
| Min. Breaker Size | 11.8 amps |
| Tonnage | 3 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 17.5" |
| 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 | 3/4" |
| Style | A-Coil |
| AHRI Certificate Number | 7368834 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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