Review
The Goodman 3-ton gas furnace and air conditioner system sits in the practical middle of the residential HVAC market. At $647, it targets contractors and cost-conscious homeowners who want proven reliability without the premium tag of Carrier or Lennox equipment. Goodman's reputation for durability and parts availability makes this a reasonable choice for straightforward residential installations, particularly in northern and moderate climate zones.
The heating side impresses with 97% AFUE and 100,000 BTU capacity using a modulating burner that adjusts output continuously rather than cycling on-off. The variable-speed ECM blower delivers up to 2000 CFM while optimizing energy consumption. Cooling delivers 34,800 BTU at 16 SEER2 through a scroll compressor, though it operates single-stage rather than modulating. The system requires 115V single-phase 60 Hz power and standard 18.7 to 30 amp breakers, simplifying electrical work.
Pros & Cons
Pros
- 97% AFUE furnace efficiency means minimal fuel waste, saving $200-400 annually on heating versus 80% units
- Modulating burner stages heat output to match demand rather than cycling on-off, improving comfort and efficiency
- Variable-speed ECM blower motor automatically adjusts airflow from 0-2000 CFM, reducing energy use and noise
- 16 SEER2 cooling rating on the condenser side provides decent summer efficiency for the price point
- 10-year warranty with online registration covers parts and labor on major components
Cons
- Product listing shows conflicting specs, stating both 3 ton and 3.5 ton capacity, creating confusion about actual system size
- Single-stage compressor on AC side means cooling cycles fully on-off rather than modulating like the furnace
- 73.5 dBA noise level is slightly higher than premium units, noticeable in quiet spaces during operation
Who Should Buy
Best For
Contractors seeking a reliable, efficient Goodman system for residential retrofit jobs where heating dominates utility costs. Homeowners in gas-heated climates willing to sacrifice some cooling modulation for excellent furnace efficiency and fair pricing.
Consider Alternatives If
Anyone in hot climates where cooling load exceeds heating should look at systems with modulating compressors, or those wanting premium warranties beyond 10 years.
Installation
Installation is straightforward for experienced technicians. The upflow A-coil configuration fits standard closets and utility areas. Connection requires 3/8 inch liquid lines and 7/8 inch suction lines with 3/4 inch insulation. PVC or plastic exhaust flue is acceptable. Flue exits right side. Maximum 50 feet of line set included in specs. Standard ductwork and electrical connections apply.
Warranty & Reliability
Ten-year parts and labor warranty activates with online registration. Coverage includes compressor, furnace heat exchanger, and major components. This is competitive for Goodman equipment but trails premium brands offering 10-year compressor-only plus limited lifetime coverage. Registration is mandatory, so retain documentation.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 100,000 |
| 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 Specifications 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 | 7424267 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| 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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