Review
This Goodman 3 ton upflow system lands in the sweet spot between capability and affordability. The 120,000 BTU furnace and 34,800 BTU air conditioning coil combine into a complete comfort solution priced at just $415. It's manufactured by Online Supply but uses Goodman's proven scroll compressor technology and two-stage burner design. Energy Star certification means utility rebates are likely available in your market. For contractors managing tight project budgets, this system delivers actual performance specs rather than marketing hype.
The heating side impresses with 96% AFUE, meaning 96 cents of every dollar spent on gas becomes usable warmth. Two burner stages let the furnace run at lower capacity during mild winter days, reducing energy waste. On cooling, the unit delivers 34,800 BTU with R410A refrigerant and a 16 SEER1 rating that outperforms the advertised 15 SEER claim. The variable-speed ECM blower adapts to load conditions up to 2000 CFM maximum airflow. Real-world efficiency translates to measurable savings, particularly in heating-dominated climates where furnaces run most months.
Pros & Cons
Pros
- 96% AFUE heating efficiency with two-stage burners captures nearly all fuel energy, reducing winter heating costs measurably
- 16 SEER1 cooling rating (note: labeled as 15 SEER but specs show 16 SEER1) qualifies for Energy Star and utility rebates
- Variable-speed ECM blower motor adjusts airflow up to 2000 CFM, improving comfort and reducing short-cycling losses
- Lifetime heat exchanger warranty plus 10 years parts coverage with online registration provides solid long-term protection
- Reasonable electrical demand at 18.7-30 amp range works with most existing home panels without expensive upgrades
Cons
- Single-stage compressor means cooling runs at full capacity or off, less precise than two-stage units in mild weather
- 3.5 ton capacity listed but title claims 3 ton, creating specification ambiguity that needs clarification from seller
- 73.5 dB noise level is audible during operation, louder than premium variable-speed competitors
Who Should Buy
Best For
Homeowners replacing 15+ year old systems who prioritize efficiency gains and cost savings over cutting-edge features. Rental property investors and contractors needing reliable equipment for multiple installations where budget constraints matter more than premium performance tiers.
Consider Alternatives If
Anyone seeking ultra-quiet operation, two-stage or variable-speed cooling, or those with limited electrical service who can't accommodate 30-amp breaker requirements.
Installation
Upflow/horizontal configuration fits standard attic or basement installations. Requires plastic or PVC exhaust flue, which most modern homes accommodate. Valve connections are standard 3/8-inch liquid line and 7/8-inch suction line with 3/4-inch suction insulation included. At 30 pounds and 34.5 inches tall, handling is manageable. Most HVAC techs complete installation in 4-6 hours. Electrical hookup demands 115V, 1-phase, 60Hz service with 18.7 to 30-amp breaker sizing.
Warranty & Reliability
Goodman backs the heat exchanger for life, protecting against the most expensive furnace failure. Ten-year parts coverage requires online registration but covers compressor, blower motor, and controls. This dual-tier structure reflects manufacturer confidence in construction quality. Labor warranty typically depends on your installer, not Goodman. Registration takes five minutes online and shouldn't be skipped.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | Lifetime Heat Exchanger and 10 Years Parts 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 | 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 | 7/8" |
| 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 | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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