Review
The Goodman 3.5 ton gas furnace and air conditioner system represents the practical middle ground in residential HVAC. This upflow unit combines a 100,000 BTU furnace with a 42,000 BTU cooling capacity, targeting homes that demand solid year-round comfort without premium pricing. At 30 inches tall with a compact 21-inch footprint, it fits standard upflow installations in basements and closets where space is tight.
Performance specs tell a straightforward story. The 92% AFUE rating beats entry-level units while remaining below high-efficiency territory, translating to measurable heating savings. On cooling, the 14 SEER rating is respectable but not exceptional in today's market. The scroll compressor with R410A refrigerant handles moderate loads reliably, though the single-stage design sacrifices the part-load efficiency gains of variable-capacity systems.
Pros & Cons
Pros
- 92% AFUE furnace efficiency reduces heating costs by approximately 8% compared to 84% units
- 14 SEER cooling rating matches mid-market expectations and qualifies for some utility rebates
- Multi-speed blower motor adjusts airflow between 0-2000 CFM for better comfort control
- PVC flue compatibility simplifies venting installation in modern homes
- 10-year warranty with online registration provides reasonable long-term protection
Cons
- Single-stage burner and compressor mean less precise temperature control than two-stage units
- 73 dB noise level is moderately loud during operation, noticeable in quiet spaces
- Not Energy Star certified, limiting appeal to efficiency-focused buyers
- Requires 208-230V single phase power, limiting some installation flexibility
- 5-ton rating creates mismatch with 3.5-ton AC capacity, suggesting incomplete system pairing
Who Should Buy
Best For
Contractors installing replacement systems in homes with existing gas heating and moderate cooling loads will find this unit straightforward to integrate. Homeowners in regions with cold winters and mild summers get practical value from the high heating efficiency without oversizing the air conditioner.
Consider Alternatives If
Energy-conscious buyers seeking maximum efficiency should look at 95% AFUE furnaces or variable-capacity systems. Those needing premium quiet operation or precise temperature staging should explore two-stage alternatives.
Installation
Installation requires 208-230V single phase power and a 22-35 amp breaker, standard for most homes. The PVC flue compatibility simplifies venting through exterior walls or plastic pipe runs, reducing installation costs. The multi-speed blower motor requires proper ductwork sizing, and connecting the 3/8-inch liquid and 7/8-inch suction lines demands certified technician work. Upflow orientation is straightforward in basement applications.
Warranty & Reliability
The 10-year parts warranty activates upon online registration, covering manufacturing defects in the compressor, heat exchanger, and electrical components. This matches industry norms for mid-tier equipment but requires proactive registration. Labor costs and refrigerant recharges fall outside coverage. The warranty reflects Goodman's confidence in this proven platform without extending to premium levels.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| 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 |
| Height | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPT Installation Manual CAPT 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. |
| Energy Star | No |
| SEER1 (Efficiency) | 14 |
| 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 amps |
| Tonnage | 5 Ton |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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