Review
This Goodman 3-ton combo system represents solid value in the mid-market segment. At $647, it undercuts comparable offerings while maintaining reputable Goodman manufacturing and Energy Star certification. The downflow configuration and A-coil design suit homes with basements or horizontal mechanical spaces. Online Supply provides complete documentation and parts support, making this a practical choice for DIY installers and contractors alike.
Performance specs impress on paper. The furnace delivers 80,000 BTU heating with 97% AFUE efficiency, meaning minimal energy waste during cold months. Cooling capacity reaches 34,800 BTU with a listed 16 SEER2 rating, exceeding the title's conservative 14 SEER claim. The modulating burner and variable-speed ECM blower adapt to load conditions, maintaining comfort while avoiding the energy waste of single-speed equipment. R410A refrigerant and a scroll compressor provide modern cooling standards.
Pros & Cons
Pros
- 97% AFUE furnace efficiency significantly reduces heating costs compared to 80-90% units
- 16 SEER2 condenser rating exceeds the stated 14 SEER in title, indicating better real-world cooling performance
- Modulating burner stages and variable-speed ECM blower optimize efficiency across temperature ranges
- Scroll compressor design reduces vibration and noise to 73.5 dBA for quieter operation
- Plastic PVC exhaust flue compatible with most existing installations, simplifying retrofits
- Energy Star certified with 10-year warranty and rebate eligibility available
Cons
- Single-stage compressor limits part-load efficiency compared to dual-stage designs in mild weather
- Downflow configuration requires adequate basement or mechanical room clearance at 34.5 inches tall
- 3.5-ton unit may be oversized for smaller homes, causing short-cycling and reduced dehumidification
Who Should Buy
Best For
Homeowners in moderate heating climates seeking reliable equipment at budget pricing, and contractors installing systems in rental properties where upfront cost matters. The modulating furnace performs well in areas with consistent cold winters and moderate cooling demands.
Consider Alternatives If
Buyers in hot, humid climates needing aggressive dehumidification should consider two-stage compressors. Those in very cold regions requiring maximum heat output may need larger tonnage.
Installation
Installation requires standard HVAC connections: 3/8 inch liquid line and 7/8 inch suction line with 3/4 inch insulation. Electrical demands are modest at 115V single-phase 60Hz with 18.7 to 30-amp breaker sizing. Downflow orientation needs adequate vertical clearance at 34.5 inches tall and 21 inches wide. PVC exhaust flue compatibility simplifies ductwork. Allow 4 to 6 hours for experienced technicians.
Warranty & Reliability
The 10-year parts warranty requires online registration but provides solid coverage against manufacturer defects. No labor coverage is included, meaning out-of-warranty repairs fall entirely on the homeowner after year one. This is standard for budget-tier equipment, so factor service costs into long-term ownership projections.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| Weight (in lbs) | 30.000000 |
| 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 | 30 amps |
| Min. Breaker Size | 18.7 amps |
| Tonnage | 3.5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation 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 | Downflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7424271 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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