Review
The Goodman 3.5 Ton 14 SEER system represents competent mid-range HVAC equipment designed for practical residential applications. Goodman builds these units for broad contractor appeal, focusing on reliability and straightforward installation rather than premium features. This unit specifically targets downflow installations common in basements and lower-level mechanical rooms, making it a natural fit for replacement projects in existing homes.
Performance metrics are solid and honest. The furnace delivers 96% AFUE efficiency with 42,000 BTU heating output using a single-stage burner, paired with single-stage cooling at 42,000 BTU and 14 SEER. The scroll compressor and R410A refrigerant handle moderate cooling demands efficiently. Multi-speed blower capability reaching 2000 CFM maximum provides flexibility. Operation runs at 73 dB, comparable to most standard furnaces. Electrical draw stays reasonable between 22.4 and 35 amps at 208/230V single-phase.
Pros & Cons
Pros
- 96% AFUE furnace efficiency significantly reduces heating fuel consumption and monthly bills
- 14 SEER cooling paired with R410A refrigerant meets modern environmental standards
- Multi-speed blower motor allows precise airflow control from 0 to 2000 CFM
- Downflow configuration ideal for basement furnaces and tight mechanical spaces
- 10-year warranty with online registration provides solid coverage peace of mind
- PVC exhaust flue uses common plastic piping, lowering installation material costs
Cons
- Single-stage burner and compressor limit efficiency gains compared to variable-capacity units
- 73 dB noise level is moderately loud, noticeable during operation in quiet spaces
- Tonnage specification conflict (listed as 3.5 and 5 ton) creates confusion during ordering
- Requires 208/230V single-phase power, limiting compatibility on some older electrical panels
Who Should Buy
Best For
Contractors installing replacement systems in homes with basement or attic mechanical spaces where downflow airflow suits the layout. Homeowners seeking straightforward efficiency upgrades without complex variable-speed technology or smart controls.
Consider Alternatives If
Anyone needing a true 3.5-ton system should verify tonnage specs before purchasing. Homes with strict noise requirements or those wanting cutting-edge modulating furnaces should explore alternatives.
Installation
Downflow configuration suits basements and mechanical closets with limited vertical space. PVC plastic exhaust piping simplifies venting compared to stainless steel alternatives. Suction line (1 1/8 inch) and liquid line (3/8 inch) sizing are industry-standard, compatible with most existing refrigerant line sets. Unit dimensions of 30 by 21 by 21 inches fit tight spaces. Multi-stage blower wiring requires careful connection during startup commissioning.
Warranty & Reliability
Goodman provides 10 years of parts coverage when you register online after installation. This is standard industry protection, covering most component failures except wear items. Registration is mandatory for activation, so don't skip that step. No labor coverage included, so repair costs beyond parts are your responsibility. Coverage gives reasonable peace of mind for typical furnace lifespan.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 42,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi Speed |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Height | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil 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. |
| Product Features | Rebate Available |
| 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 | 35 amps |
| Min. Breaker Size | 22.4 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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