Review
The Goodman 3.5-ton dual-fuel system bridges economy and performance, pairing a 96% AFUE furnace with a 16 SEER2 air conditioner. Positioned as a value option for contractors and homeowners, this unit targets the middle market where efficiency matters but premium modulation isn't required. The downflow configuration increases installation flexibility, while the variable-speed blower addresses both heating and cooling needs without oversized ductwork.
Heating delivers 120,000 BTU across two burner stages, preventing rapid on-off cycling that wastes energy. Cooling produces 42,000 BTU at 16 SEER2 using a scroll compressor and R410A refrigerant. The variable-speed ECM blower runs from 0 to 2000 CFM, matching airflow to demand. However, the single-stage air conditioner design means the compressor runs full power even during mild days, losing potential efficiency gains that dual-stage systems achieve.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs significantly compared to 80-90% units
- 16 SEER2 cooling rating qualifies for Energy Star, indicating strong AC performance
- Variable-speed ECM blower motor adjusts output from 0 to 2000 CFM for comfort and efficiency
- Two-stage burner operation minimizes short cycling and improves temperature consistency
- Downflow/horizontal configuration fits attic, basement, or closet installations
- 10-year warranty with online registration covers both furnace and evaporator coil
Cons
- Single-stage air conditioner cannot modulate capacity, wasting energy during mild cooling days
- 73 dBA noise level is moderately loud, noticeable in quiet homes during furnace operation
- Spec sheet lists conflicting tonnage (3.5 Ton title, 5 Ton specification) creating buyer confusion
Who Should Buy
Best For
Homeowners in climates with moderate heating and cooling demands who want solid efficiency without dual-variable-stage equipment. This system suits budget-conscious buyers replacing older furnaces who value the high AFUE rating and Energy Star certification.
Consider Alternatives If
Anyone in extreme heat regions needing aggressive cooling performance should compare dual-stage or variable-capacity air conditioners instead.
Installation
The downflow/horizontal A-coil design fits tight spaces where upflow units won't work. Electrical needs are modest: 115V single-phase 60Hz with breaker range from 23.5 to 40 amps. Suction line insulation (1/2 inch, 50 feet) comes included. PVC exhaust flue compatibility suits modern code requirements. Ductwork sizing for 2000 CFM maximum airflow matters for peak performance.
Warranty & Reliability
Online registration unlocks a 10-year warranty covering both furnace and evaporator coil. This is standard industry coverage, protecting against manufacturing defects but not wear items like capacitors or fan motors. Registration is required, so retain documentation. Extended plans may be available through the retailer.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| 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 | 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. |
| AHRI Certificate Number | 7368845 |
| Airflow Direction | Downflow/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 |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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