Review
The Goodman 3-ton gas furnace and air conditioner system represents a practical middle-ground choice in the HVAC market. Marketed at $634, this upflow configuration combines a 120,000 BTU furnace with matching cooling capacity in a compact footprint measuring 30 inches tall by 24.5 inches wide. Online Supply positions this unit as a contractor-friendly alternative to premium brands, backed by AHRI certification number 7368842 and Energy Star recognition.
Performance metrics justify the efficiency claims. The 96% AFUE furnace rating means homeowners lose only 4% of fuel energy through exhaust, versus 10-20% losses in older equipment. Cooling operates at SEER 16 with a 3.5-ton compressor and scroll design, delivering 34,800 BTU capacity. The variable-speed ECM blower motor adjusts to 2,000 CFM maximum, reducing runtime on mild days. Two-stage burner modulation prevents the energy waste of constant full-fire heating.
Pros & Cons
Pros
- 96% AFUE furnace means only 4% heat loss, translating to lower winter utility bills than 80-90% AFUE units
- Variable-speed ECM blower motor automatically adjusts airflow, improving comfort and reducing short-cycling waste
- SEER 16 cooling efficiency rated at 3 tons, 34,800 BTU capacity handles typical single-family homes effectively
- Two-stage burner provides modulated heating for more consistent temperatures and less energy waste
- PVC flue exhaust compatible, simplifying retrofit installations where metal chimneys limit options
- Energy Star certified and qualifies for utility rebates in many regions, offsetting initial cost
- 10-year warranty with online registration covers parts and labor
- $634 price point is 30-40% lower than equivalent Carrier or Lennox systems
Cons
- Tonnage spec shows 3.5 tons but product title claims 3 tons, creating documentation confusion that could affect AHRI matching
- 73.5 dB noise level is audible during operation, notably louder than premium variable-capacity competitors at 65-68 dB
- Single-stage condenser means cooling runs at full capacity even on mild days, wasting energy compared to two-stage models
- SEER 16 lags behind modern premium units hitting SEER 18+, though still excellent for budget tier
Who Should Buy
Best For
Contractors installing systems in price-sensitive residential markets and homeowners replacing 15+ year old equipment who prioritize reliability and efficiency without brand-name costs. This unit specifically suits regions with cold winters where 96% AFUE furnace performance drives meaningful annual savings.
Consider Alternatives If
Buyers in mild climates where cooling dominates will see limited ROI from the heating efficiency, and noise-sensitive homeowners should audition units under 70 dB before committing.
Installation
Installation complexity rates as moderate to straightforward. The unit accepts both natural gas and propane, requiring only appropriate line connections and 208/230V single-phase electrical service at 18.7 to 30 amps. PVC plastic flue compatibility eliminates masonry chimney dependency, easing retrofit work. Suction line includes 3/4 inch insulation, and the A-coil style pairs easily with existing ductwork in upflow or downflow applications.
Warranty & Reliability
Goodman provides 10 years parts coverage after online registration, a respectable term for the price point. This matches mid-tier industry standards but trails extended warranties offered by premium competitors. Coverage includes the evaporator coil, critical for refrigerant circuit longevity. Buyers should register promptly upon installation to activate protection.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7368842 |
| Airflow Direction | Upflow/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 |
| Energy Star | Yes |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Height | 30" |
| Width | 24.5" |
| 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. |
| 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 | 3.5 Ton |
| 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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