Review
The Goodman 3 Ton system represents a mainstream choice in residential HVAC replacement. Goodman remains a trusted equipment manufacturer for contractors who value straightforward reliability over premium features. This horizontal A-coil configuration fits attics and tight spaces common in retrofit installations. Online Supply positions this unit as a wholesale option, appealing to contractors managing multiple jobs and budget-conscious homeowners handling replacement projects themselves.
The headline specs are impressive on paper. The furnace delivers 97% AFUE efficiency with a modulating burner that continuously adjusts to heating demand, minimizing energy waste. The condenser achieves 18 SEER2 rating using a scroll compressor and two-stage operation, keeping noise at 71 dBA. The variable-speed ECM blower modulates to 2000 CFM maximum, matching airflow to actual cooling or heating load. For homeowners replacing systems in colder climates, the furnace efficiency alone typically returns 15-20% of fuel costs compared to older units.
Pros & Cons
Pros
- 97% AFUE furnace efficiency translates to minimal heating fuel waste and lower winter bills
- 18 SEER2 rating on the condenser exceeds the product title claim and delivers excellent summer performance
- Modulating furnace burner adjusts heating output in real time, improving comfort and reducing short cycling
- Two-stage scroll compressor with variable-speed ECM blower handles load changes smoothly and quietly at 71 dBA
- Energy Star certified system qualifies for rebates in most regions, offsetting part of equipment cost
Cons
- Actual tonnage is 5 tons, not the stated 3 ton, creating confusion on system sizing and potential oversizing issues
- 35,000 cooling BTU output doesn't match 120,000 heating BTU, suggesting this may be a condenser-only unit or incomplete specification
- No pricing clarity on whether $89 is the condenser alone or includes furnace and installation labor
Who Should Buy
Best For
HVAC contractors restocking inventory and experienced homeowners replacing complete systems should consider this unit. It's ideal for regions with significant heating seasons where the 97% AFUE furnace will deliver measurable annual savings.
Consider Alternatives If
Homeowners in cooling-dominant climates should verify the actual tonnage and BTU ratings before purchasing, as the specs appear inconsistent.
Installation
This unit requires standard refrigerant lines (3/8 inch liquid, 7/8 inch suction with 3/4 inch insulation), electrical service of 115V single-phase at 21.3 to 35 amps, and plastic PVC exhaust flue venting. The 50-foot suction line length allows flexible placement of the condenser. Technicians need proper EPA certification for R410A refrigerant handling. Installation complexity is moderate, manageable for certified installers but not recommended for untrained homeowners.
Warranty & Reliability
Coverage spans 10 years when you register the system online with Goodman. This is standard industry protection covering parts failure but typically excludes labor, refrigerant, and damage from improper installation. Online registration is essential, otherwise coverage drops significantly. For contractors, this warranty helps protect customer relationships during the critical first decade of operation.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Product Features | Rebate Available |
| Energy Star | Yes |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.3 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 24.5" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installations 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 | 7424268 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| 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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