Review
Goodman's 2-ton downflow system represents a mainstream choice for HVAC contractors balancing efficiency ratings with contractor-friendly pricing. This air handler and furnace combination targets the replacement market and new residential construction where space is limited and budget constraints are real. The downflow configuration suits installations where the unit sits in an attic or closet above living space, and the A-coil design allows flexibility in ductwork routing. Goodman remains one of the most widely stocked brands at supply houses nationwide, making parts sourcing straightforward for service calls.
The heating side delivers 80,000 BTU output with 97% AFUE efficiency and a modulating burner that ramps power based on demand rather than simply cycling on and off. Cooling arrives at 23,600 BTU with a 16 SEER2 rating and Energy Star certification, powered by a scroll compressor and fed by 3/8 inch liquid and 3/4 inch suction lines. The variable-speed ECM motor maxes out at 1,600 CFM, allowing quieter operation at part-load conditions. Electrical requirements stay modest at 115V single-phase 60Hz with a 12.4 to 20-amp breaker range, simplifying installation in homes with basic service.
Pros & Cons
Pros
- 97% AFUE furnace efficiency reduces heating costs significantly, especially in colder months
- 16 SEER2 air conditioner rating meets Energy Star standards for 2-ton cooling at 23,600 BTU
- Modulating burner stages adapt to heating demand rather than cycling on/off, improving comfort and efficiency
- Variable-speed ECM blower motor adjusts airflow from 1 to 1,600 CFM for better dehumidification and quieter operation
- 10-year warranty with online registration provides solid protection and reflects manufacturer confidence
Cons
- Single-stage compressor limits cooling efficiency compared to two-stage units in high-heat climates
- 71.5 dB noise level is moderately loud for a condenser, noticeable near outdoor unit
- Spec discrepancy shows 2-ton in title but 3-ton tonnage rating, creating confusion about actual cooling capacity
Who Should Buy
Best For
Contractors and homeowners in temperate regions seeking a reliable, efficient combination system for retrofit or new builds where both heating and cooling matter equally. Best suited for homes with natural gas service and moderate seasonal temperature swings.
Consider Alternatives If
Buyers in hot climates needing maximum cooling efficiency should consider two-stage compressor units; those prioritizing quietest operation should look at units rated below 70 dB.
Installation
Downflow orientation requires proper flue venting using plastic PVC pipe routed safely outdoors. The unit weighs 22 pounds and measures 34.5 inches tall by 21 inches wide by 28.75 inches deep, fitting most standard closet or attic spaces. Refrigerant line runs up to 50 feet with 3/4 inch suction line insulation. Technicians should verify gas line sizing and confirm R410A or R22 compatibility before commissioning. AHRI certificate number 7424271 confirms proper match with compatible coils.
Warranty & Reliability
The 10-year parts warranty activates upon online registration and covers manufacturing defects in all major components. This registration requirement means documenting proof of purchase within a specified window, typical for Goodman products. Labor and refrigerant are excluded. This warranty period aligns with industry standards for mid-tier equipment, offering reasonable protection without premium-brand pricing.
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 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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. |
| Configuration | Downflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Style | A-Coil |
| AHRI Certificate Number | 7424271 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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