Review
The Goodman 2-ton downflow system combines a robust gas furnace with an air conditioning condenser, marketed as a complete heating and cooling solution. However, buyers need to note a critical mismatch: the furnace is rated at 60,000 BTU heating output, while the condenser is rated 3 tons with 23,600 BTU cooling capacity. This oversizing on the cooling side is unusual and suggests this may be a liquidation or closeout item. The unit carries ENERGY STAR certification and includes Goodman's standard 10-year warranty with online registration.
Performance-wise, the furnace shines with its 97% AFUE rating and modulating burner design. This means approximately 97 cents of every heating dollar converts to usable warmth, translating to 15-20% lower heating bills compared to 80% AFUE units in cold climates. The variable-speed ECM blower runs at maximum 1200 CFM and adapts to load demands, keeping noise at 71.5 dB. Cooling efficiency reaches SEER1 16 on the 3-ton condenser, which is solid but not premium. The scroll compressor and R410A refrigerant ensure reliable operation, though single-stage cooling limits seasonal efficiency in variable outdoor conditions.
Pros & Cons
Pros
- 97% AFUE furnace efficiency reduces annual heating costs significantly compared to standard 80% units
- Modulating burner adjusts output in real time, eliminating temperature swings and improving comfort
- Variable-speed ECM blower runs quietly at 71.5 dB and delivers precise airflow control
- PVC exhaust compatibility simplifies venting in modern homes with tight construction
- 10-year warranty with online registration provides solid manufacturer backing
Cons
- 3 Ton cooling capacity makes this unit oversized for many 2-ton applications, risking short cycling and humidity issues
- Single-stage compressor limits cooling efficiency compared to two-stage alternatives in variable load conditions
- Downflow configuration restricts installation locations; requires clearance and proper horizontal ductwork setup
- SEER1 rating of 16 is respectable but trails top-tier inverter-driven systems by 2-3 points
Who Should Buy
Best For
Homeowners in cold or mixed climates who prioritize winter comfort and utility bill reduction. This system suits properties with existing downflow configurations or new builds designed for this airflow pattern, where heating represents 60% or more of annual HVAC use.
Consider Alternatives If
Contractors and homeowners in hot climates where cooling dominates, or those seeking a true 2-ton matched pair, should look at alternatives with higher SEER ratings or dual-stage compressors.
Installation
Downflow installation requires attic or upper-floor positioning with gravity-fed ductwork below. You'll need proper clearance around the 34.5-inch tall, 17.5-inch wide unit. Electrical hookup is straightforward at 115V single-phase 60 Hz, requiring 12.4 to 20-amp breaker sizing. Refrigerant line sets use 3/8-inch liquid and 3/4-inch suction connections with 3/4-inch insulation thickness, rated for 50-foot max run. PVC exhaust venting simplifies installation in modern homes.
Warranty & Reliability
Goodman's 10-year parts warranty activates upon online registration and covers defects in materials and workmanship. This is industry-standard coverage for mid-tier equipment. Labor is not covered, so expect out-of-pocket service call costs in year 6-10. Registration must occur within 30 days of purchase to activate the full term.
Specifications
| SKU | LS38343850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 23,600 |
| Heating BTU | 60,000 |
| 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 | 17.5" |
| 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 | 7424269 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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