Review
Goodman's 5-ton downflow system represents solid mid-tier equipment for contractors managing mixed-climate installations. This unit pairs a 100,000 BTU furnace with a 54,000 BTU air conditioner condenser, addressing both seasonal demands in one package. The downflow configuration suits basements and tight utility spaces where upflow placement isn't viable. At this tonnage and efficiency tier, the system competes directly with builder-grade equipment while offering better performance than budget options. Online Supply's rebate eligibility adds practical value for cost-conscious projects.
The heating side delivers 96% AFUE efficiency, meaning 96 cents of every dollar spent on fuel converts to usable heat. That outperforms typical 80 to 90 percent systems and directly reduces winter utility costs. The cooling condenser achieves 16 SEER2, surpassing the advertised 15 SEER1 rating, which translates to approximately 16 percent better efficiency than minimum federal standards. A variable-speed ECM blower motor adjusts airflow from 0 to 2000 CFM based on demand, preventing energy waste during partial-load operation. Two-stage burner technology provides low-fire and high-fire operation for comfort without unnecessary cycling.
Pros & Cons
Pros
- 16 SEER2 rating on the condenser beats the 15 SEER specification, offering better cooling efficiency than promised
- 96% AFUE furnace captures nearly all fuel energy, translating to lower winter heating bills on natural gas or propane
- Two-stage burner and variable-speed ECM blower motor allow precise temperature control and reduced runtime cycles
- 100,000 BTU heating and 54,000 BTU cooling capacity suits medium to large homes across diverse climates
- PVC/plastic exhaust compatibility simplifies venting installation compared to metal-only requirements on older units
Cons
- Single-stage compressor on the condenser means less granular cooling capacity modulation than two-stage alternatives
- 73 dB noise level during operation is audible from inside the home, particularly in quiet neighborhoods
- Specs show 54,000 BTU cooling for a 5-ton unit, which is slightly below the 60,000 BTU theoretical standard
Who Should Buy
Best For
Contractors installing systems in homes that need both aggressive heating and cooling, particularly those serving regions with cold winters and hot summers. Homeowners seeking Energy Star equipment at reasonable cost, especially those with existing natural gas lines or propane availability.
Consider Alternatives If
Buyers prioritizing ultra-quiet operation or those needing two-stage compressor cooling modulation should look at premium competitors like Lennox or Carrier.
Installation
This downflow unit requires vertical ductwork below the furnace, making it ideal for basement installations with floor-level returns. Electrical requirements demand 115V single-phase 60 Hz service with a 29.6 to 50 amp breaker, standard in most homes. The 3/8-inch liquid line and 7/8-inch suction line with 3/4-inch insulation follow EPA refrigerant best practices. PVC exhaust venting simplifies combustion gas routing through exterior walls. Proper R410A charge and line set evacuation are critical for the 16 SEER2 performance.
Warranty & Reliability
Goodman provides 10 years of parts coverage with online registration, a solid industry standard for mid-tier equipment. This covers compressor failure, motor burnout, and heat exchanger defects. Registration is straightforward but mandatory to activate the warranty. The accompanying evaporator coil carries separate warranty protection, addressing the most failure-prone cooling component. Extended warranties are typically available at purchase.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 54,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| 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 | 50 amps |
| Min. Breaker Size | 29.6 amps |
| Tonnage | 5 Ton |
| 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. |
| AHRI Certificate Number | 7368844 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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