Review
The Goodman 3.5 Ton furnace and AC system represents solid midmarket equipment for homeowners upgrading tired HVAC systems. This combo bundles a gas furnace producing 120,000 BTU and an air conditioner rated for 42,000 BTU cooling capacity. The system runs on R410A refrigerant and carries Energy Star certification, signaling compliance with current efficiency standards. Online Supply backs it with a 10-year warranty upon registration, adding peace of mind to the purchase.
Performance numbers tell a practical story here. The furnace delivers 92% AFUE efficiency, meaning 92 cents of every dollar spent on gas becomes usable heat. On the cooling side, the 16 SEER rating outpaces the advertised 14 SEER, suggesting the actual unit may perform slightly better than claimed. The scroll compressor operates at 73 dB, which is typical for single-stage systems but noticeable in quiet homes. The multi-speed blower ranges to 2000 CFM, allowing proper airflow adjustment across different ductwork configurations.
Pros & Cons
Pros
- 16 SEER cooling efficiency exceeds the 14 SEER rating claim, indicating better real-world performance
- 92% AFUE furnace efficiency captures most of the fuel's energy, reducing heating costs significantly
- Multi-speed blower motor adjusts airflow from 0 to 2000 CFM for comfort and efficiency
- Scroll compressor design is proven reliable and quieter than reciprocating types
- PVC exhaust requirement means easier installation on newer homes without metal flue access
Cons
- Single-stage compressor cycles on and off rather than modulating, less efficient than two-stage units
- 73 dB noise level is audible during operation, noticeable in quiet spaces
- Spec sheet shows conflicting tonnage data (3.5 ton system listed as 5 ton), creating confusion
Who Should Buy
Best For
Homeowners in moderate climates replacing 15+ year old furnace and AC systems benefit most from this combo. It's ideal for those seeking proven Goodman reliability with Energy Star certification and a rebate opportunity.
Consider Alternatives If
Anyone needing variable-speed compressors for zone control or ultra-quiet operation should explore two-stage models or premium brands, as this single-stage design has limitations in both areas.
Installation
This upflow configuration works well in basements or utility closets where vertical clearance exists. The unit measures 30 inches tall by 24.5 inches wide by 21 inches deep, fitting standard alcoves. Installation requires 115V single-phase power with a 22.4 to 35 amp breaker. PVC exhaust piping simplifies venting on modern homes. The included 50-foot suction line with 1/2-inch insulation handles most residential runs without field modifications.
Warranty & Reliability
Goodman provides a standard 10-year parts warranty when you register online within 30 days of purchase. This covers compressor, heat exchanger, and other major components. Labor costs fall on the homeowner or contractor. Registration is straightforward and essential, as unregistered units receive only a base warranty period.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| 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 |
| Height | 30" |
| Width | 24.5" |
| 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. |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 92% |
| Blower Motor | Multi Speed |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| 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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