Review
Goodman's downflow gas furnace and air conditioner combination addresses a real need in the mid-market HVAC space. This unit pairs a 100,000 BTU modulating gas furnace rated at 97% AFUE with an air conditioning condenser delivering SEER2 16 efficiency. The variable-speed ECM blower motor and scroll compressor technology suggest equipment engineered for both comfort and operating cost reduction. Online Supply distributes this AHRI-certified system (certificate 7424272) with a 10-year warranty when registered.
Performance metrics tell a compelling efficiency story. The furnace modulates its burner output rather than cycling on and off, reducing temperature swings and fuel waste. The cooling side handles 34,800 BTU at SEER2 16, making it Energy Star qualified. The variable-speed blower adjusts from minimal CFM during mild heating to 2000 CFM peak capacity, matching airflow to actual heating or cooling demand. At 73.5 dBA, noise stays reasonable for residential spaces. Electrical requirements are straightforward, 115V single-phase 60 Hz with a 30-amp maximum breaker.
Pros & Cons
Pros
- 97% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% models
- SEER2 16 cooling efficiency qualifies for Energy Star and many utility rebates
- Modulating furnace burner fine-tunes heat output, improving comfort and reducing short cycling
- Variable-speed ECM blower motor adjusts CFM from low to 2000 CFM for precise air distribution
- Scroll compressor technology delivers reliable, whisper-quiet operation at 73.5 dBA
- PVC exhaust compatibility eliminates expensive stainless steel flue requirements
Cons
- Specs show 5-ton cooling capacity but title claims 3-ton, creating confusion about actual system size and matching requirements
- Single-stage compressor cannot modulate cooling like the heating side, reducing part-load efficiency in mild weather
- Downflow configuration limits installation flexibility to homes with basement or crawlspace returns
Who Should Buy
Best For
Homeowners replacing aging furnaces in homes with basement or slab-with-crawlspace returns who prioritize heating efficiency and long-term energy savings. Contractors seeking reliable Goodman equipment for residential retrofit jobs where modulating heat and efficient cooling matter equally.
Consider Alternatives If
Anyone needing true two-stage cooling for superior part-load efficiency, or homes with only attic space for equipment placement, should explore upflow alternatives.
Installation
Downflow/horizontal configuration requires basement or crawlspace return air paths. The system uses standard 3/8 inch liquid line and 7/8 inch suction line with 3/4 inch insulation, compatible with most existing residential refrigerant plumbing. PVC plastic exhaust flue simplifies venting compared to stainless steel requirements on some competitors. Mounting dimensions are compact at 30 inches H x 21 inches W x 21 inches D. Professional installation ensures proper refrigerant charge and ductwork balance.
Warranty & Reliability
Goodman backs this system with a 10-year warranty covering defects when you register the unit online. Coverage protects against compressor failure, coil leaks, and component defects. The extended term reflects Goodman's confidence in scroll compressor durability. Registration is straightforward through Online Supply. Labor and refrigerant typically fall outside coverage, so clarify terms with your installer.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| 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 | 30 amps |
| Min. Breaker Size | 18.7 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 | 7424272 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Modulating |
| 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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