Review
Goodman's 3.5-ton dual-fuel system represents a practical middle-ground choice in the residential HVAC market. This upflow-configured unit pairs a gas furnace with an air conditioning condenser, providing year-round climate control without requiring two separate systems. The 97% AFUE heating efficiency and Energy Star cooling certification signal that Goodman is targeting cost-conscious contractors and homeowners who want solid performance without premium pricing. The unit's A-coil design suits installation in attics and utility closets where space is constrained.
Performance figures demonstrate competent efficiency across both functions. The furnace delivers 100,000 BTU heating output with modulating burners that adjust flame intensity based on demand, reducing cycling and improving comfort. Cooling capacity reaches 42,000 BTU with a SEER1 rating of 16. The variable-speed ECM blower motor ramping up to 2000 CFM ensures proper air distribution without constant full-speed operation. At 73 dB, noise output sits in the moderate range, noticeable but not excessive during typical operation.
Pros & Cons
Pros
- 97% AFUE furnace with modulating burners reduces heating costs significantly compared to 80-90% single-stage units
- Variable-speed ECM blower motor adjusts airflow from 0 to 2000 CFM, improving comfort and efficiency
- SEER1 16 rating and Energy Star certification deliver solid cooling performance
- Scroll compressor is a proven, reliable design with low maintenance requirements
- Upflow A-coil configuration simplifies installation in basements and tight attic spaces
Cons
- 3.5-ton cooling capacity conflicts with listed 5-ton tonnage, creating specification confusion for contractors
- 73 dB noise level is moderate to loud for some residential installations, especially during heating cycles
- SEER1 16 is good but not exceptional compared to newer 17+ SEER2 high-efficiency systems on the market
Who Should Buy
Best For
Contractors and homeowners in northern and mixed climates who prioritize heating efficiency alongside reliable cooling. This system is ideal for properties where natural gas or propane is readily available and upflow installation is feasible.
Consider Alternatives If
Buyers seeking the absolute quietest operation or the highest cooling ratings should explore competing systems with SEER2 17+ ratings and variable-speed compressors.
Installation
Upflow configuration makes this unit straightforward for installers accustomed to basement or horizontal attic placement. The A-coil style accepts both 3/8-inch liquid lines and 1 1/8-inch suction lines with standard 1/2-inch insulation. Electrical requirements demand a 23.5 to 40 amp breaker at 115 volts single-phase 60 Hz. PVC exhaust flue is required, simplifying venting compared to masonry chimneys. At 48 pounds, the condenser unit is manageable for two technicians.
Warranty & Reliability
Goodman provides 10 years of coverage upon online registration, a respectable duration that reflects confidence in component longevity. This warranty covers defects in materials and workmanship, though coverage specifics require reviewing the full warranty document. Ten years aligns with industry standards for mid-range equipment, offering meaningful protection without lifetime claims.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| 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 | 40 amps |
| Min. Breaker Size | 23.5 amps |
| Tonnage | 5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Specifications 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 | Upflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7424267 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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