Review
The Goodman 3-ton/5-ton dual-fuel system positions itself as a mainstream choice for contractors and homeowners seeking solid efficiency without premium pricing. This upflow A-coil configuration works well for basement or closet installations where space is limited. The system carries Energy Star certification and draws from Goodman's reputation for straightforward, serviceable equipment. While not cutting-edge technology, the package delivers practical performance at accessible price points.
Performance numbers tell a clear story. The furnace delivers 100,000 BTU heating capacity at 96% AFUE, meaning nearly all fuel converts to usable heat. On the cooling side, the system produces 34,800 BTU at 16 SEER2, exceeding many 3-ton unit expectations. The variable-speed ECM blower motor and two-stage burner work together to reduce waste during partial-load operation. Electrical requirements are modest, needing only 18.7 to 30 amps, making it compatible with most existing home panels.
Pros & Cons
Pros
- 96% AFUE furnace efficiency minimizes heating costs in winter months, translating to real savings on monthly bills
- 16 SEER2 rating exceeds the 3-ton cooling specification, providing strong cooling performance and Energy Star certification
- Variable-speed ECM blower motor maintains comfort while reducing electricity consumption compared to fixed-speed alternatives
- Two-stage burner on furnace allows low-fire operation during moderate weather, improving efficiency and reducing short-cycling
- Lifetime heat exchanger warranty provides exceptional long-term protection against the most expensive furnace failure point
Cons
- Spec sheet contains conflicting tonnage data, listing both 3-ton and 5-ton ratings, creating confusion about actual cooling capacity
- 73.5 dB noise level during operation may be noticeable in quiet homes, though still within acceptable industry range
- Single-stage scroll compressor lacks the efficiency boost of two-stage or variable-capacity alternatives during partial-load conditions
Who Should Buy
Best For
Homeowners in mixed-climate regions who use both heating and cooling extensively, particularly those seeking long-term reliability with a robust warranty. Contractors looking to balance efficiency requirements with competitive pricing will find solid value here.
Consider Alternatives If
Buyers in cooling-only climates should evaluate pure air conditioning systems instead, and those prioritizing whisper-quiet operation may find the 73.5 dB level objectionable.
Installation
Installation favors contractors experienced with standard Goodman equipment. The 34.5-inch height and 21-inch width fit tight spaces, though the 28.75-inch depth requires adequate clearance. Requires 3/8-inch liquid and 7/8-inch suction lines with 3/4-inch insulation thickness pre-installed. PVC exhaust venting simplifies flue design compared to metal alternatives. Most installations take 4 to 6 hours for experienced crews.
Warranty & Reliability
Lifetime coverage on the heat exchanger protects against corrosion and cracking, eliminating the largest furnace replacement expense. Ten years of parts coverage with online registration applies to all other components. Registration is straightforward but required to activate full benefits. This warranty structure reflects industry confidence in furnace longevity while capping manufacturer liability on other parts.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 100,000 |
| 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 | 5 Ton |
| Height | 34.5" |
| Width | 21" |
| 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 | 7368836 |
| 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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