Review
The Goodman 2-ton downflow system represents solid mid-market positioning for contractors and homeowners balancing budget constraints against efficiency goals. At $647, this combined furnace and air conditioning unit competes directly with builder-grade equipment while offering measurably better performance. The downflow configuration suits basements, attics, and closet installations common in residential retrofit work, making it versatile for various home layouts.
Performance metrics tell a compelling efficiency story. The furnace achieves 96% AFUE, meaning 96 cents of every heating dollar reaches your home rather than escaping up the flue. The air conditioner delivers 16 SEER1 cooling with a scroll compressor rated for 23,600 BTU at 71.5 dB. The variable-speed ECM blower motor adjusts between zero and 1600 CFM based on actual heating and cooling demand, reducing wasted cycles. Energy Star certification confirms these specifications meet federal standards.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means lower heating costs year-round compared to 80-90% units
- 16 SEER cooling exceeds Energy Star requirements and qualifies for federal tax credits
- Variable-speed ECM blower motor adjusts to demand, reducing runtime and energy waste
- Two-stage burner provides quieter, more consistent heating without constant cycling
- Plastic PVC exhaust flue allows easier, cheaper installation than metal alternatives
Cons
- Single-stage compressor lacks modulation capability of higher-end units, reducing efficiency during partial-load conditions
- 3.5-ton cooling capacity overstated relative to 2-ton listed price, creating specification confusion
- 71.5 dB noise level runs louder than some competitors, noticeable during operation
Who Should Buy
Best For
Budget-aware homeowners and HVAC contractors installing systems in moderate-climate zones where efficiency rebates and tax credits are available. This unit works best for properties where the 80,000 BTU heating capacity matches actual heating demand and the 23,600 cooling BTU fits the space without oversizing.
Consider Alternatives If
Anyone needing inverter-driven variable-capacity cooling or living in extreme hot/cold climates where modulating compressors justify higher investment costs.
Installation
This downflow unit requires PVC plastic exhaust venting, which costs less and installs faster than metal alternatives. The 3/8-inch liquid line and 3/4-inch suction line come pre-sized for standard copper runs up to 50 feet. Suction line insulation is included at 3/4-inch thickness to prevent condensation. You'll need a 115V, 60Hz electrical supply with 12.4 to 20-amp breaker capacity. A-coil configuration requires proper return ductwork design.
Warranty & Reliability
Goodman provides 10 years parts coverage when you complete online registration after installation. This length matches industry standards but requires user action to activate. The evaporator coil carries separate warranty protection. Registration is straightforward and protects your investment against compressor and heat exchanger failures, the costliest potential repairs.
Specifications
| SKU | LS38343850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 23,600 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71.5 |
| Weight (in lbs) | 22.000000 |
| Feature | Spec |
| Replaces | GSX16S241 |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 20 amps |
| Min. Breaker Size | 12.4 amps |
| Tonnage | 3.5 Ton |
| 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. |
| AHRI Certificate Number | 7368843 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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